From a61ffed9cdde1c0196c17f5745c456f0f1b03577 Mon Sep 17 00:00:00 2001
From: unknown <muhammadheriyanto28@gmail.com>
Date: Mon, 5 May 2025 13:01:42 +0700
Subject: [PATCH] penambahan fungsi implementasi data

---
 backend/controller/diagnosaController.js      | 102 ++++++
 backend/controller/gejalaController.js        |   2 +-
 backend/controller/hamaController.js          |  13 +-
 backend/controller/penyakitController.js      |   9 +-
 backend/image_hama/hama-1746382661292.jpg     | Bin 0 -> 6187 bytes
 .../image_penyakit/penyakit-1746385635429.jpg | Bin 0 -> 7806 bytes
 .../migrations/20250318213037-create-hama.js  |   7 +
 ...50504181953-add-nilai_pakar-to-penyakit.js |  14 +
 backend/models/hama.js                        |   4 +
 backend/models/penyakit.js                    |   4 +
 backend/routes/diagnosaRoutes.js              |  42 +++
 backend/routes/hamaRoutes.js                  |   6 +
 backend/routes/penyakitRoutes.js              |   6 +
 frontend/lib/admin/admin_page.dart            | 157 ++++++++--
 frontend/lib/admin/edit_hama_page.dart        | 129 ++++++--
 frontend/lib/admin/edit_penyakit_page.dart    |  46 +++
 frontend/lib/admin/edit_rule_page.dart        | 123 ++++----
 frontend/lib/admin/hama_page.dart             | 155 ++--------
 frontend/lib/admin/penyakit_page.dart         |  33 ++
 frontend/lib/admin/rule_page.dart             | 279 +++++++++--------
 frontend/lib/admin/tambah_hama_page.dart      |  16 +-
 frontend/lib/admin/tambah_penyakit_page.dart  |  14 +-
 frontend/lib/admin/tambah_rule_page.dart      | 205 ++++++------
 frontend/lib/api_services/api_services.dart   |  65 +++-
 frontend/lib/user/detail_hama_page.dart       |  29 +-
 frontend/lib/user/detail_penyakit_page.dart   | 292 +++++++++++++-----
 frontend/lib/user/penyakit_page.dart          |   2 +-
 27 files changed, 1184 insertions(+), 570 deletions(-)
 create mode 100644 backend/controller/diagnosaController.js
 create mode 100644 backend/image_hama/hama-1746382661292.jpg
 create mode 100644 backend/image_penyakit/penyakit-1746385635429.jpg
 create mode 100644 backend/migrations/20250504181953-add-nilai_pakar-to-penyakit.js
 create mode 100644 backend/routes/diagnosaRoutes.js

diff --git a/backend/controller/diagnosaController.js b/backend/controller/diagnosaController.js
new file mode 100644
index 0000000..e190b2b
--- /dev/null
+++ b/backend/controller/diagnosaController.js
@@ -0,0 +1,102 @@
+const { Rule_penyakit, Rule_hama, Gejala, Penyakit, Hama } = require('../models');
+
+exports.diagnosa = async (req, res) => {
+  const { gejala } = req.body; // array of id_gejala
+
+  if (!gejala || !Array.isArray(gejala)) {
+    return res.status(400).json({ message: 'Gejala harus berupa array' });
+  }
+
+  try {
+    // ===================== Penyakit =====================
+    const allPenyakitRules = await Rule_penyakit.findAll({
+      where: {
+        id_gejala: gejala,
+      },
+      include: [
+        {
+          model: Penyakit,
+          as: 'penyakit',
+        },
+      ],
+    });
+
+    const penyakitScores = {};
+
+    allPenyakitRules.forEach(rule => {
+      const idPenyakit = rule.id_penyakit;
+      const nilaiPakarGejala = rule.nilai_pakar; // P(E|H)
+      const nilaiPakarPenyakit = rule.penyakit.nilai_pakar; // P(H)
+
+      if (!penyakitScores[idPenyakit]) {
+        // === Menginisialisasi: P(E|H) * P(H) ===
+        penyakitScores[idPenyakit] = {
+          penyakit: rule.penyakit.nama,
+          total: nilaiPakarGejala * nilaiPakarPenyakit, // ← Rumus Bayes awal
+        };
+      } else {
+        // === Mengalikan P(E|H) berikutnya (jika diasumsikan independen) ===
+        penyakitScores[idPenyakit].total *= nilaiPakarGejala;
+      }
+    });
+
+    // ===================== Hama =====================
+    const allHamaRules = await Rule_hama.findAll({
+      where: {
+        id_gejala: gejala,
+      },
+      include: [
+        {
+          model: Hama,
+          as: 'hama',
+        },
+      ],
+    });
+
+    const hamaScores = {};
+
+    allHamaRules.forEach(rule => {
+      const idHama = rule.id_hama;
+      const nilaiPakarGejala = rule.nilai_pakar; // P(E|H)
+      const nilaiPakarHama = rule.hama.nilai_pakar; // P(H)
+
+      if (!hamaScores[idHama]) {
+        // === Menginisialisasi: P(E|H) * P(H) ===
+        hamaScores[idHama] = {
+          hama: rule.hama.nama,
+          total: nilaiPakarGejala * nilaiPakarHama, // ← Rumus Bayes awal
+        };
+      } else {
+        // === Mengalikan P(E|H) berikutnya ===
+        hamaScores[idHama].total *= nilaiPakarGejala;
+      }
+    });
+
+    // ===================== Normalisasi (opsional) =====================
+    const totalPenyakit = Object.values(penyakitScores).reduce((acc, cur) => acc + cur.total, 0);
+    const totalHama = Object.values(hamaScores).reduce((acc, cur) => acc + cur.total, 0);
+
+    const normalizedPenyakit = Object.values(penyakitScores).map(p => ({
+      ...p,
+      probabilitas: (p.total / totalPenyakit) || 0, // Probabilitas akhir
+    }));
+
+    const normalizedHama = Object.values(hamaScores).map(h => ({
+      ...h,
+      probabilitas: (h.total / totalHama) || 0,
+    }));
+
+    // Sorting
+    const sortedPenyakit = normalizedPenyakit.sort((a, b) => b.probabilitas - a.probabilitas);
+    const sortedHama = normalizedHama.sort((a, b) => b.probabilitas - a.probabilitas);
+
+    res.json({
+      penyakit: sortedPenyakit,
+      hama: sortedHama,
+    });
+
+  } catch (error) {
+    console.error('Error dalam perhitungan Bayes:', error);
+    res.status(500).json({ message: 'Terjadi kesalahan dalam proses diagnosa' });
+  }
+};
diff --git a/backend/controller/gejalaController.js b/backend/controller/gejalaController.js
index 5f18990..1a39be0 100644
--- a/backend/controller/gejalaController.js
+++ b/backend/controller/gejalaController.js
@@ -4,7 +4,7 @@ const {Gejala} = require('../models');
 exports.getAllGejala = async (req, res) => {
   try {
     const gejala = await Gejala.findAll({
-      attributes: ['id', 'nama']
+      attributes: ['id', 'nama', 'kode']
     });
     res.status(200).json(gejala);
   } catch (error) {
diff --git a/backend/controller/hamaController.js b/backend/controller/hamaController.js
index 14e3308..28f04fc 100644
--- a/backend/controller/hamaController.js
+++ b/backend/controller/hamaController.js
@@ -6,7 +6,7 @@ const fs = require('fs');
 exports.getAllHama = async (req, res) => {
   try {
     const dataHama = await Hama.findAll({
-      attributes: ['id', 'nama' , 'deskripsi' , 'penanganan', 'foto']
+      attributes: ['id', 'nama' , 'deskripsi' , 'penanganan', 'foto', 'kode', 'nilai_pakar']
     });
     res.status(200).json({ message: 'Data hama berhasil diambil', data: dataHama });
   } catch (error) {
@@ -51,7 +51,7 @@ exports.getHamaById = async (req, res) => {
 // Pastikan sudah import 'Hama' model dan multer middleware sebelumnya
 exports.createHama = async (req, res) => {
   try {
-    const { nama, deskripsi, penanganan } = req.body;
+    const { nama, deskripsi, penanganan, nilai_pakar } = req.body;
     const file = req.file; 
 
     // Cek kode terakhir
@@ -71,10 +71,11 @@ exports.createHama = async (req, res) => {
     const newHama = await Hama.create({
       kode: newKode,
       nama,
-      kategori: 'hama', // Default kategori
+      kategori: 'hama', 
       deskripsi,
       penanganan,
-      foto: fotoPath, // ⬅️ Masukkan nama file ke database
+      foto: fotoPath, 
+      nilai_pakar
     });
 
     res.status(201).json({ message: 'Hama berhasil ditambahkan', data: newHama });
@@ -88,7 +89,7 @@ exports.createHama = async (req, res) => {
 exports.updateHama = async (req, res) => {
   try {
     const { id } = req.params;
-    const { nama, kategori, deskripsi, penanganan } = req.body;
+    const { nama, kategori, deskripsi, penanganan, nilai_pakar, } = req.body;
 
     const hama = await Hama.findByPk(id);
     if (!hama) {
@@ -101,7 +102,7 @@ exports.updateHama = async (req, res) => {
        foto = req.file.filename;
      }
 
-    await hama.update({ nama, kategori, deskripsi, penanganan, foto });
+    await hama.update({ nama, kategori, deskripsi, penanganan, foto, nilai_pakar });
 
     res.status(200).json({ message: 'Hama berhasil diperbarui', data: hama });
   } catch (error) {
diff --git a/backend/controller/penyakitController.js b/backend/controller/penyakitController.js
index 390ecec..1ebd6a3 100644
--- a/backend/controller/penyakitController.js
+++ b/backend/controller/penyakitController.js
@@ -6,7 +6,7 @@ const fs = require('fs');
 exports.getAllPenyakit = async (req, res) => {
   try {
     const dataPenyakit = await Penyakit.findAll({
-      attributes: ['id', 'nama' , 'deskripsi' , 'penanganan' , 'foto']
+      attributes: ['id', 'nama' , 'deskripsi' , 'penanganan' , 'foto', 'kode', 'nilai_pakar']
     });
     res.status(200).json({ message: 'Data penyakit berhasil diambil', data: dataPenyakit });
   } catch (error) {
@@ -50,7 +50,7 @@ exports.getPenyakitById = async (req, res) => {
 // 🔹 Fungsi untuk menambahkan penyakit baru (kode otomatis & kategori default)
 exports.createPenyakit = async (req, res) => {
   try {
-    const { nama, deskripsi, penanganan } = req.body;
+    const { nama, deskripsi, penanganan, nilai_pakar } = req.body;
     const file = req.file; 
 
     // Cek kode terakhir
@@ -74,6 +74,7 @@ exports.createPenyakit = async (req, res) => {
       deskripsi,
       penanganan,
       foto: fotoPath,
+      nilai_pakar
     });
 
     res.status(201).json({ message: 'Penyakit berhasil ditambahkan', data: newPenyakit });
@@ -86,7 +87,7 @@ exports.createPenyakit = async (req, res) => {
 exports.updatePenyakit = async (req, res) => {
   try {
     const { id } = req.params;
-    const { nama, kategori, deskripsi, penanganan } = req.body;
+    const { nama, kategori, deskripsi, penanganan, nilai_pakar } = req.body;
 
     const penyakit = await Penyakit.findByPk(id);
     if (!penyakit) {
@@ -99,7 +100,7 @@ exports.updatePenyakit = async (req, res) => {
       foto = req.file.filename;
     }
 
-    await penyakit.update({ nama, kategori, deskripsi, penanganan, foto });
+    await penyakit.update({ nama, kategori, deskripsi, penanganan, foto, nilai_pakar });
 
     res.status(200).json({ message: 'Penyakit berhasil diperbarui', data: penyakit });
   } catch (error) {
diff --git a/backend/image_hama/hama-1746382661292.jpg b/backend/image_hama/hama-1746382661292.jpg
new file mode 100644
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literal 0
HcmV?d00001

diff --git a/backend/migrations/20250318213037-create-hama.js b/backend/migrations/20250318213037-create-hama.js
index 2e89447..33e4c40 100644
--- a/backend/migrations/20250318213037-create-hama.js
+++ b/backend/migrations/20250318213037-create-hama.js
@@ -1,4 +1,7 @@
 'use strict';
+
+const { sequelize } = require('../models');
+
 /** @type {import('sequelize-cli').Migration} */
 module.exports = {
   async up(queryInterface, Sequelize) {
@@ -24,6 +27,10 @@ module.exports = {
         type: Sequelize.STRING,
         allowNull: true
       },
+      nilai_pakar: {
+        type: Sequelize.FLOAT,
+        allowNull: true
+      },
     });
   },
   async down(queryInterface, Sequelize) {
diff --git a/backend/migrations/20250504181953-add-nilai_pakar-to-penyakit.js b/backend/migrations/20250504181953-add-nilai_pakar-to-penyakit.js
new file mode 100644
index 0000000..f042ce9
--- /dev/null
+++ b/backend/migrations/20250504181953-add-nilai_pakar-to-penyakit.js
@@ -0,0 +1,14 @@
+'use strict';
+
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.addColumn('penyakit', 'nilai_pakar', {
+      type: Sequelize.FLOAT,
+      allowNull: true,
+    });
+  },
+
+  down: async (queryInterface, Sequelize) => {
+    await queryInterface.removeColumn('penyakit', 'nilai_pakar');
+  }
+};
diff --git a/backend/models/hama.js b/backend/models/hama.js
index de4727c..b647d70 100644
--- a/backend/models/hama.js
+++ b/backend/models/hama.js
@@ -31,6 +31,10 @@ module.exports = (sequelize) => {
       foto: {
         type: DataTypes.STRING,
         allowNull: false,
+      },
+      nilai_pakar: {
+        type: DataTypes.FLOAT,
+        allowNull: true
       }
     },
     {
diff --git a/backend/models/penyakit.js b/backend/models/penyakit.js
index 92c9bbf..abc6e57 100644
--- a/backend/models/penyakit.js
+++ b/backend/models/penyakit.js
@@ -31,6 +31,10 @@ module.exports =(sequelize) => {
         foto: {
           type: DataTypes.STRING,
           allowNull: false,
+        },
+        nilai_pakar: {
+          type: DataTypes.FLOAT,
+          allowNull: true
         }
       },
       {
diff --git a/backend/routes/diagnosaRoutes.js b/backend/routes/diagnosaRoutes.js
new file mode 100644
index 0000000..d0cee5b
--- /dev/null
+++ b/backend/routes/diagnosaRoutes.js
@@ -0,0 +1,42 @@
+const express = require('express');
+const router = express.Router();
+const diagnosaController = require('../controller/diagnosaController');
+
+/**
+ * @swagger
+ * /api/diagnosa/bayes:
+ *   post:
+ *     summary: Melakukan diagnosa penyakit dan hama menggunakan Teorema Bayes
+ *     tags: [Diagnosa]
+ *     requestBody:
+ *       required: true
+ *       content:
+ *         application/json:
+ *           schema:
+ *             type: object
+ *             properties:
+ *               gejala:
+ *                 type: array
+ *                 items:
+ *                   type: integer
+ *                 example: [1, 2, 3]
+ *     responses:
+ *       200:
+ *         description: Hasil diagnosa berhasil dikembalikan
+ *         content:
+ *           application/json:
+ *             schema:
+ *               type: object
+ *               properties:
+ *                 penyakit:
+ *                   type: object
+ *                 hama:
+ *                   type: object
+ *       400:
+ *         description: Permintaan tidak valid
+ *       500:
+ *         description: Terjadi kesalahan pada server
+ */
+router.post('/bayes', diagnosaController.diagnosaBayes);
+
+module.exports = router;
diff --git a/backend/routes/hamaRoutes.js b/backend/routes/hamaRoutes.js
index e09e941..bf834c6 100644
--- a/backend/routes/hamaRoutes.js
+++ b/backend/routes/hamaRoutes.js
@@ -68,6 +68,9 @@ router.get('/:id/image', hamaController.getHamaById);
  *                 type: string
  *                 format: binary
  *                 description: Foto hama (JPG, JPEG, PNG, GIF)
+ *               nilai_pakar:
+ *                 type: number
+ *                 format: float
  *     responses:
  *       201:
  *         description: Hama berhasil ditambahkan
@@ -105,6 +108,9 @@ router.post('/', uploadHamaGambar.single('foto'), hamaController.createHama);
  *               foto:
  *                 type: string
  *                 format: binary
+ *               nilai_pakar:
+ *                 type: number
+ *                 format: float
  *     responses:
  *       200:
  *         description: Hama berhasil diperbarui
diff --git a/backend/routes/penyakitRoutes.js b/backend/routes/penyakitRoutes.js
index 3859dd7..645cd3d 100644
--- a/backend/routes/penyakitRoutes.js
+++ b/backend/routes/penyakitRoutes.js
@@ -69,6 +69,9 @@ router.get('/:id/image', penyakitController.getPenyakitById);
  *                 type: string
  *                 format: binary
  *                 description: Foto penyakit (JPG, JPEG, PNG, GIF)
+ *               nilai_pakar:
+ *                 type: number
+ *                 format: float
  *     responses:
  *       201:
  *         description: Hama berhasil ditambahkan
@@ -106,6 +109,9 @@ router.post('/', uploadPenyakitGambar.single('foto'), penyakitController.createP
  *               foto:
  *                 type: string
  *                 format: binary
+ *               nilai_pakar:
+ *                 type: number
+ *                 format: float
  *     responses:
  *       200:
  *         description: penyakit berhasil diperbarui
diff --git a/frontend/lib/admin/admin_page.dart b/frontend/lib/admin/admin_page.dart
index 69206ea..e8b8028 100644
--- a/frontend/lib/admin/admin_page.dart
+++ b/frontend/lib/admin/admin_page.dart
@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'dart:async';
 import 'hama_page.dart';
 import 'penyakit_page.dart';
 import 'gejala_page.dart';
@@ -6,7 +7,65 @@ import 'rule_page.dart';
 import 'package:frontend/api_services/api_services.dart';
 import 'package:frontend/user/login_page.dart';
 
-class AdminPage extends StatelessWidget {
+class AdminPage extends StatefulWidget {
+  @override
+  _AdminPageState createState() => _AdminPageState();
+}
+
+class _AdminPageState extends State<AdminPage> {
+  // Data counters
+  int userCount = 0;
+  int diagnosisCount = 0;
+  int diseaseCount = 0;
+  int pestCount = 0;
+  bool isLoading = true;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadDashboardData();
+  }
+
+  // Method untuk memuat data dashboard dari API
+  Future<void> _loadDashboardData() async {
+  try {
+    setState(() {
+      isLoading = true;
+    });
+
+    print("Fetching users with role 'user'...");
+
+    // Mengambil jumlah user dengan role 'user'
+    final userList = await ApiService().getUsers(role: 'user');
+    if (userList != null && userList.isNotEmpty) {
+      userCount = userList.length;
+      print("Jumlah user: $userCount");
+    } else {
+      print("Tidak ada user dengan role 'user'.");
+    }
+
+    print("Fetching data penyakit...");
+    // Mengambil data penyakit menggunakan fungsi yang sudah ada
+    final penyakitList = await ApiService().getPenyakit();
+    diseaseCount = penyakitList.length;
+    print("Jumlah penyakit: $diseaseCount");
+
+    print("Fetching data hama...");
+    // Mengambil data hama menggunakan fungsi yang sudah ada
+    final hamaList = await ApiService().getHama();
+    pestCount = hamaList.length;
+    print("Jumlah hama: $pestCount");
+
+  } catch (e) {
+    print("Error loading dashboard data: $e");
+  } finally {
+    setState(() {
+      isLoading = false;
+    });
+  }
+}
+
+
   Future<void> _logout(BuildContext context) async {
     await ApiService.logoutUser();
     Navigator.pushReplacement(
@@ -18,7 +77,10 @@ class AdminPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(title: Text('Admin Dashboard')),
+      appBar: AppBar(
+        title: Text('Admin Dashboard'),
+        backgroundColor: Color(0xFF9DC08D),
+      ),
       drawer: Drawer(
         child: Container(
           color: Color(0xFFFFFFFF),
@@ -80,41 +142,61 @@ class AdminPage extends StatelessWidget {
       body: Padding(
         padding: const EdgeInsets.all(16.0),
         child: SingleChildScrollView(
-        child: Column(
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            Text(
-              'Selamat datang Admin!',
-              style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
-            ),
-            SizedBox(height: 24),
-            Column(
-              children: [
-                Row(
-                  mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-                  children: [
-                    _buildCard('Jumlah User', '10'),
-                    _buildCard('Jumlah Diagnosa', '25'),
-                  ],
-                ),
-                SizedBox(height: 16), // Spasi antar baris
-                Row(
-                  mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-                  children: [
-                    _buildCard('Penyakit', '15'),
-                    _buildCard('Hama', '15'),
-                  ],
-                ),
-              ],
-            ),
-          ],
-        ),
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(
+                'Selamat datang Admin!',
+                style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
+              ),
+              SizedBox(height: 24),
+              isLoading
+                  ? Center(
+                    child: CircularProgressIndicator(color: Color(0xFF9DC08D)),
+                  )
+                  : Column(
+                    children: [
+                      Row(
+                        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                        children: [
+                          _buildCard(
+                            'Jumlah User',
+                            userCount.toString(),
+                            Icons.people,
+                          ),
+                          _buildCard(
+                            'Jumlah Diagnosa',
+                            diagnosisCount.toString(),
+                            Icons.assignment,
+                          ),
+                        ],
+                      ),
+                      SizedBox(height: 16),
+                      Row(
+                        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                        children: [
+                          _buildCard(
+                            'Penyakit',
+                            diseaseCount.toString(),
+                            Icons.sick,
+                          ),
+                          _buildCard(
+                            'Hama',
+                            pestCount.toString(),
+                            Icons.bug_report,
+                          ),
+                        ],
+                      ),
+                    ],
+                  ),
+            ],
+          ),
         ),
       ),
     );
   }
 
-  Widget _buildCard(String title, String count) {
+  Widget _buildCard(String title, String count, IconData icon) {
     return Card(
       elevation: 4,
       shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
@@ -125,13 +207,22 @@ class AdminPage extends StatelessWidget {
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: [
+            Icon(icon, size: 40, color: Color(0xFF9DC08D)),
+            SizedBox(height: 10),
             Text(
               title,
               textAlign: TextAlign.center,
               style: TextStyle(fontWeight: FontWeight.bold),
             ),
             SizedBox(height: 10),
-            Text(count, style: TextStyle(fontSize: 20, color: Colors.green)),
+            Text(
+              count,
+              style: TextStyle(
+                fontSize: 24,
+                color: Color(0xFF9DC08D),
+                fontWeight: FontWeight.bold,
+              ),
+            ),
           ],
         ),
       ),
diff --git a/frontend/lib/admin/edit_hama_page.dart b/frontend/lib/admin/edit_hama_page.dart
index 9391e23..c9476bb 100644
--- a/frontend/lib/admin/edit_hama_page.dart
+++ b/frontend/lib/admin/edit_hama_page.dart
@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:frontend/api_services/api_services.dart';
-import 'image_utilities.dart'; // Import file baru
+import 'image_utilities.dart';
 import 'dart:io';
 import 'dart:typed_data';
 import 'package:image_picker/image_picker.dart';
@@ -11,6 +11,7 @@ class EditHamaPage extends StatefulWidget {
   final String namaAwal;
   final String deskripsiAwal;
   final String penangananAwal;
+  final double nilai_pakar;
   final String gambarUrl;
   final VoidCallback onHamaUpdated;
 
@@ -20,6 +21,7 @@ class EditHamaPage extends StatefulWidget {
     required this.namaAwal,
     required this.deskripsiAwal,
     required this.penangananAwal,
+    required this.nilai_pakar,
     required this.gambarUrl,
     required this.onHamaUpdated,
   }) : super(key: key);
@@ -32,6 +34,7 @@ class _EditHamaPageState extends State<EditHamaPage> {
   final TextEditingController _namaController = TextEditingController();
   final TextEditingController _deskripsiController = TextEditingController();
   final TextEditingController _penangananController = TextEditingController();
+  final TextEditingController _nilaiPakarController = TextEditingController();
   final ApiService apiService = ApiService();
   final ImagePicker _picker = ImagePicker();
   
@@ -41,6 +44,8 @@ class _EditHamaPageState extends State<EditHamaPage> {
   String? _errorMessage;
   bool _isImageLoading = false;
   Uint8List? _currentImageBytes;
+  // Default value for nilai_pakar to prevent empty string issues
+  double _currentNilaiPakar = 0.0;
 
   @override
   void initState() {
@@ -49,6 +54,10 @@ class _EditHamaPageState extends State<EditHamaPage> {
     _deskripsiController.text = widget.deskripsiAwal;
     _penangananController.text = widget.penangananAwal;
     
+    // Ensure nilai_pakar is properly initialized
+    _currentNilaiPakar = widget.nilai_pakar;
+    _nilaiPakarController.text = widget.nilai_pakar.toString();
+    
     // Load existing image
     _loadExistingImage();
   }
@@ -89,9 +98,25 @@ class _EditHamaPageState extends State<EditHamaPage> {
     _namaController.dispose();
     _deskripsiController.dispose();
     _penangananController.dispose();
+    _nilaiPakarController.dispose();
     super.dispose();
   }
 
+  // Validate and parse nilai_pakar input
+  double _parseNilaiPakar() {
+    if (_nilaiPakarController.text.isEmpty) {
+      return _currentNilaiPakar; // Return current value if field is empty
+    }
+    
+    try {
+      String input = _nilaiPakarController.text.trim().replaceAll(',', '.');
+      return double.parse(input);
+    } catch (e) {
+      print("Error parsing nilai_pakar: $e");
+      return _currentNilaiPakar; // Return current value if parsing fails
+    }
+  }
+
   Future<void> _updateHama() async {
     try {
       setState(() {
@@ -99,12 +124,18 @@ class _EditHamaPageState extends State<EditHamaPage> {
         _errorMessage = null;
       });
 
+      // Get nilai_pakar value with safety check
+      double nilaiPakar = _parseNilaiPakar();
+      
+      print("Updating hama with nilai_pakar: $nilaiPakar");
+
       await apiService.updateHama(
         widget.idHama,
         _namaController.text,
         _deskripsiController.text,
         _penangananController.text,
         _pickedFile,
+        nilaiPakar,
       );
       
       setState(() {
@@ -257,41 +288,71 @@ class _EditHamaPageState extends State<EditHamaPage> {
                       maxLines: 3,
                     ),
                     SizedBox(height: 20),
-                    Text(
-                          'Foto Hama',
-                          style: TextStyle(
-                            fontWeight: FontWeight.bold,
-                            fontSize: 16,
-                          ),
-                        ),
-                        SizedBox(height: 8),
-                        _buildImagePreview(),
-                        SizedBox(height: 12),
-                        Row(
-                          mainAxisAlignment: MainAxisAlignment.center,
-                          children: [
-                            ElevatedButton.icon(
-                              onPressed: _pickImage,
-                              icon: Icon(Icons.photo_library),
-                              label: Text('Pilih Gambar'),
-                              style: ElevatedButton.styleFrom(
-                                backgroundColor: Colors.blue,
-                                foregroundColor: Colors.white,
-                              ),
-                            ),
-                          ],
-                        ),
-
-                    ElevatedButton(
-                      onPressed: _updateHama,
-                      style: ElevatedButton.styleFrom(
-                        backgroundColor: Colors.green[300],
+                    TextField(
+                      controller: _nilaiPakarController,
+                      decoration: InputDecoration(
+                        labelText: 'Nilai Pakar',
+                        hintText: 'Contoh: 0.5',
                       ),
-                      child: Text(
-                        'Simpan Perubahan',
-                        style: TextStyle(color: Colors.black),
+                      keyboardType: TextInputType.numberWithOptions(decimal: true),
+                      onChanged: (value) {
+                        // Validate as user types (optional)
+                        try {
+                          if (value.isNotEmpty) {
+                            double.parse(value.replaceAll(',', '.'));
+                          }
+                        } catch (e) {
+                          // Could show validation error here
+                        }
+                      },
+                    ),
+                    SizedBox(height: 20),
+                    Text(
+                      'Foto Hama',
+                      style: TextStyle(
+                        fontWeight: FontWeight.bold,
+                        fontSize: 16,
                       ),
                     ),
+                    SizedBox(height: 8),
+                    _buildImagePreview(),
+                    SizedBox(height: 12),
+                    Row(
+                      mainAxisAlignment: MainAxisAlignment.center,
+                      children: [
+                        ElevatedButton.icon(
+                          onPressed: _pickImage,
+                          icon: Icon(Icons.photo_library),
+                          label: Text('Pilih Gambar'),
+                          style: ElevatedButton.styleFrom(
+                            backgroundColor: Colors.blue,
+                            foregroundColor: Colors.white,
+                          ),
+                        ),
+                      ],
+                    ),
+                    SizedBox(height: 20),
+                    if (_isLoading)
+                      CircularProgressIndicator()
+                    else
+                      ElevatedButton(
+                        onPressed: _updateHama,
+                        style: ElevatedButton.styleFrom(
+                          backgroundColor: Colors.green[300],
+                        ),
+                        child: Text(
+                          'Simpan Perubahan',
+                          style: TextStyle(color: Colors.black),
+                        ),
+                      ),
+                    if (_errorMessage != null)
+                      Padding(
+                        padding: const EdgeInsets.only(top: 12.0),
+                        child: Text(
+                          _errorMessage!,
+                          style: TextStyle(color: Colors.red),
+                        ),
+                      ),
                   ],
                 ),
               ),
@@ -301,4 +362,4 @@ class _EditHamaPageState extends State<EditHamaPage> {
       ),
     );
   }
-}
+}
\ No newline at end of file
diff --git a/frontend/lib/admin/edit_penyakit_page.dart b/frontend/lib/admin/edit_penyakit_page.dart
index f605fdf..00647c5 100644
--- a/frontend/lib/admin/edit_penyakit_page.dart
+++ b/frontend/lib/admin/edit_penyakit_page.dart
@@ -12,6 +12,7 @@ class EditPenyakitPage extends StatefulWidget {
   final String namaAwal;
   final String deskripsiAwal;
   final String penangananAwal;
+  final double nilai_pakar;
   final String gambarUrl;
   final VoidCallback onPenyakitUpdated;
 
@@ -21,6 +22,7 @@ class EditPenyakitPage extends StatefulWidget {
     required this.namaAwal,
     required this.deskripsiAwal,
     required this.penangananAwal,
+    required this.nilai_pakar,
     required this.gambarUrl,
     required this.onPenyakitUpdated,
   }) : super(key: key);
@@ -33,6 +35,7 @@ class _EditPenyakitPageState extends State<EditPenyakitPage> {
   final TextEditingController _namaController = TextEditingController();
   final TextEditingController _deskripsiController = TextEditingController();
   final TextEditingController _penangananController = TextEditingController();
+  final TextEditingController _nilaiPakarController = TextEditingController();
   final ApiService apiService = ApiService();
   final ImagePicker _picker = ImagePicker();
   
@@ -42,6 +45,7 @@ class _EditPenyakitPageState extends State<EditPenyakitPage> {
   String? _errorMessage;
   bool _isImageLoading = false;
   Uint8List? _currentImageBytes;
+  double _currentNilaiPakar = 0.0;
 
   @override
   void initState() {
@@ -49,6 +53,8 @@ class _EditPenyakitPageState extends State<EditPenyakitPage> {
     _namaController.text = widget.namaAwal;
     _deskripsiController.text = widget.deskripsiAwal;
     _penangananController.text = widget.penangananAwal;
+    _currentNilaiPakar = widget.nilai_pakar;
+    _nilaiPakarController.text = widget.nilai_pakar.toString();
     _loadExistingImage();
   }
 
@@ -91,6 +97,21 @@ class _EditPenyakitPageState extends State<EditPenyakitPage> {
     super.dispose();
   }
 
+  // Validate and parse nilai_pakar input
+  double _parseNilaiPakar() {
+    if (_nilaiPakarController.text.isEmpty) {
+      return _currentNilaiPakar; // Return current value if field is empty
+    }
+    
+    try {
+      String input = _nilaiPakarController.text.trim().replaceAll(',', '.');
+      return double.parse(input);
+    } catch (e) {
+      print("Error parsing nilai_pakar: $e");
+      return _currentNilaiPakar; // Return current value if parsing fails
+    }
+  }
+
   Future<void> _updatePenyakit() async {
     try {
       setState(() {
@@ -98,12 +119,18 @@ class _EditPenyakitPageState extends State<EditPenyakitPage> {
         _errorMessage = null;
       });
 
+      // Get nilai_pakar value with safety check
+      double nilaiPakar = _parseNilaiPakar();
+      
+      print("Updating hama with nilai_pakar: $nilaiPakar");
+
       await apiService.updatePenyakit(
         widget.idPenyakit,
         _namaController.text,
         _deskripsiController.text,
         _penangananController.text,
         _pickedFile,
+        nilaiPakar,
       );
       
       setState(() {
@@ -260,6 +287,25 @@ class _EditPenyakitPageState extends State<EditPenyakitPage> {
                       maxLines: 3,
                     ),
                     SizedBox(height: 20),
+                    TextField(
+                      controller: _nilaiPakarController,
+                      decoration: InputDecoration(
+                        labelText: 'Nilai Pakar',
+                        hintText: 'Contoh: 0.5',
+                      ),
+                      keyboardType: TextInputType.numberWithOptions(decimal: true),
+                      onChanged: (value) {
+                        // Validate as user types (optional)
+                        try {
+                          if (value.isNotEmpty) {
+                            double.parse(value.replaceAll(',', '.'));
+                          }
+                        } catch (e) {
+                          // Could show validation error here
+                        }
+                      },
+                    ),
+                    SizedBox(height: 20),
                     Text(
                           'Foto Penyakit',
                           style: TextStyle(
diff --git a/frontend/lib/admin/edit_rule_page.dart b/frontend/lib/admin/edit_rule_page.dart
index 7678974..77c8e08 100644
--- a/frontend/lib/admin/edit_rule_page.dart
+++ b/frontend/lib/admin/edit_rule_page.dart
@@ -13,6 +13,8 @@ class EditRulePage extends StatefulWidget {
   final List<double> nilaiPakarList;
   final int? selectedHamaId;
   final int? selectedPenyakitId;
+  final bool showHamaOnly; // Tambahkan ini
+  final bool showPenyakitOnly; // Tambahkan ini
 
   const EditRulePage({
     Key? key,
@@ -21,6 +23,8 @@ class EditRulePage extends StatefulWidget {
     required this.selectedRuleIds,
     required this.selectedGejalaIds,
     required this.nilaiPakarList,
+    this.showHamaOnly = false, // Tambahkan default value
+    this.showPenyakitOnly = false,
     this.selectedHamaId,
     this.selectedPenyakitId,
   }) : super(key: key);
@@ -37,6 +41,9 @@ class _EditRulePageState extends State<EditRulePage> {
 
   bool isLoading = true;
 
+  bool showHamaOnly = false;
+  bool showPenyakitOnly = false;
+
   final api = ApiService();
 
   // Deklarasi variabel untuk menampung data dari API
@@ -154,6 +161,8 @@ class _EditRulePageState extends State<EditRulePage> {
   @override
   void initState() {
     super.initState();
+    showHamaOnly = widget.showHamaOnly;
+    showPenyakitOnly = widget.showPenyakitOnly;
     fetchData(); // Panggil fetchData saat halaman dibuka pertama kali
 
     // Inisialisasi dari widget parent
@@ -250,62 +259,68 @@ class _EditRulePageState extends State<EditRulePage> {
                     child: ListView(
                       children: [
                         // Pilih Hama
-                        Text("Pilih Hama"),
-                        DropdownButton<int>(
-                          isExpanded: true,
-                          value: selectedHamaId,
-                          hint: Text('Pilih Hama'),
-                          items:
-                              hamaList.isNotEmpty
-                                  ? hamaList.map<DropdownMenuItem<int>>((hama) {
-                                    return DropdownMenuItem<int>(
-                                      value: hama['id'],
-                                      child: Text(hama['nama']),
-                                    );
-                                  }).toList()
-                                  : [
-                                    DropdownMenuItem<int>(
-                                      value: null,
-                                      child: Text("Data tidak tersedia"),
-                                    ),
-                                  ],
-                          onChanged: (value) {
-                            setState(() {
-                              selectedHamaId = value;
-                            });
-                          },
-                        ),
-                        SizedBox(height: 16),
+                        if (!showPenyakitOnly) ...[
+                          Text("Pilih Hama"),
+                          DropdownButton<int>(
+                            isExpanded: true,
+                            value: selectedHamaId,
+                            hint: Text('Pilih Hama'),
+                            items:
+                                hamaList.isNotEmpty
+                                    ? hamaList.map<DropdownMenuItem<int>>((
+                                      hama,
+                                    ) {
+                                      return DropdownMenuItem<int>(
+                                        value: hama['id'],
+                                        child: Text(hama['nama']),
+                                      );
+                                    }).toList()
+                                    : [
+                                      DropdownMenuItem<int>(
+                                        value: null,
+                                        child: Text("Data tidak tersedia"),
+                                      ),
+                                    ],
+                            onChanged: (value) {
+                              setState(() {
+                                selectedHamaId = value;
+                              });
+                            },
+                          ),
+                          SizedBox(height: 16),
+                        ],
 
                         // Pilih Penyakit
-                        Text("Pilih Penyakit"),
-                        DropdownButton<int>(
-                          isExpanded: true,
-                          value: selectedPenyakitId,
-                          hint: Text('Pilih Penyakit'),
-                          items:
-                              penyakitList.isNotEmpty
-                                  ? penyakitList.map<DropdownMenuItem<int>>((
-                                    penyakit,
-                                  ) {
-                                    return DropdownMenuItem<int>(
-                                      value: penyakit['id'],
-                                      child: Text(penyakit['nama']),
-                                    );
-                                  }).toList()
-                                  : [
-                                    DropdownMenuItem<int>(
-                                      value: null,
-                                      child: Text("Data tidak tersedia"),
-                                    ),
-                                  ],
-                          onChanged: (value) {
-                            setState(() {
-                              selectedPenyakitId = value;
-                            });
-                          },
-                        ),
-                        SizedBox(height: 16),
+                        if (!showHamaOnly) ...[
+                          Text("Pilih Penyakit"),
+                          DropdownButton<int>(
+                            isExpanded: true,
+                            value: selectedPenyakitId,
+                            hint: Text('Pilih Penyakit'),
+                            items:
+                                penyakitList.isNotEmpty
+                                    ? penyakitList.map<DropdownMenuItem<int>>((
+                                      penyakit,
+                                    ) {
+                                      return DropdownMenuItem<int>(
+                                        value: penyakit['id'],
+                                        child: Text(penyakit['nama']),
+                                      );
+                                    }).toList()
+                                    : [
+                                      DropdownMenuItem<int>(
+                                        value: null,
+                                        child: Text("Data tidak tersedia"),
+                                      ),
+                                    ],
+                            onChanged: (value) {
+                              setState(() {
+                                selectedPenyakitId = value;
+                              });
+                            },
+                          ),
+                          SizedBox(height: 16),
+                        ],
 
                         // Pilih Gejala dan Nilai Pakar
                         Text("Pilih Gejala"),
diff --git a/frontend/lib/admin/hama_page.dart b/frontend/lib/admin/hama_page.dart
index 8b5dec9..7abee0a 100644
--- a/frontend/lib/admin/hama_page.dart
+++ b/frontend/lib/admin/hama_page.dart
@@ -67,128 +67,6 @@ class _HamaPageState extends State<HamaPage> {
     );
   }
 
-  // void _tambahHama() {
-  //   TextEditingController namaController = TextEditingController();
-  //   TextEditingController penangananController = TextEditingController();
-  //   TextEditingController deskripsiController = TextEditingController();
-
-  //   showDialog(
-  //     context: context,
-  //     builder: (context) {
-  //       return AlertDialog(
-  //         title: Text('Tambah Hama Baru'),
-  //         content: Column(
-  //           mainAxisSize: MainAxisSize.min,
-  //           children: [
-  //             TextField(
-  //               controller: namaController,
-  //               decoration: InputDecoration(labelText: 'Nama'),
-  //             ),
-  //             TextField(
-  //               controller: deskripsiController,
-  //               decoration: InputDecoration(labelText: 'Deskripsi'),
-  //             ),
-  //             TextField(
-  //               controller: penangananController,
-  //               decoration: InputDecoration(labelText: 'Penanganan'),
-  //             ),
-  //           ],
-  //         ),
-  //         actions: [
-  //           TextButton(
-  //             onPressed: () => Navigator.pop(context),
-  //             child: Text('Batal', style: TextStyle(color: Colors.black)),
-  //           ),
-  //           ElevatedButton(
-  //             onPressed: () async {
-  //               if (namaController.text.isNotEmpty &&
-  //                   deskripsiController.text.isNotEmpty &&
-  //                   penangananController.text.isNotEmpty) {
-  //                 try {
-  //                   await apiService.createHama(
-  //                     namaController.text,
-  //                     deskripsiController.text,
-  //                     penangananController.text,
-  //                   );
-  //                   _fetchHama();
-  //                   Navigator.pop(context);
-  //                 } catch (e) {
-  //                   print("Error adding hama: $e");
-  //                 }
-  //               }
-  //             },
-  //             child: Text('Simpan', style: TextStyle(color: Colors.black)),
-  //           ),
-  //         ],
-  //       );
-  //     },
-  //   ).then((_) {
-  //     namaController.dispose();
-  //     deskripsiController.dispose();
-  //     penangananController.dispose();
-  //   });
-  // }
-
-  // void showEditDialog(BuildContext context, Map<String, dynamic> hama) {
-  //   final TextEditingController editNamaController = TextEditingController(
-  //     text: hama['nama'] ?? '',
-  //   );
-  //   final TextEditingController editDeskripsiController = TextEditingController(
-  //     text: hama['deskripsi'] ?? '',
-  //   );
-  //   final TextEditingController editPenangananController =
-  //       TextEditingController(text: hama['penanganan'] ?? '');
-
-  //   showDialog(
-  //     context: context,
-  //     builder: (context) {
-  //       return AlertDialog(
-  //         title: Text('Edit Hama'),
-  //         content: Column(
-  //           mainAxisSize: MainAxisSize.min,
-  //           children: [
-  //             TextField(
-  //               controller: editNamaController,
-  //               decoration: InputDecoration(labelText: 'Nama'),
-  //             ),
-  //             TextField(
-  //               controller: editDeskripsiController,
-  //               decoration: InputDecoration(labelText: 'Deskripsi'),
-  //             ),
-  //             TextField(
-  //               controller: editPenangananController,
-  //               decoration: InputDecoration(labelText: 'Penanganan'),
-  //             ),
-  //           ],
-  //         ),
-  //         actions: [
-  //           TextButton(
-  //             onPressed: () => Navigator.pop(context),
-  //             child: Text('Batal'),
-  //           ),
-  //           ElevatedButton(
-  //             onPressed: () async {
-  //               try {
-  //                 await apiService.updateHama(
-  //                   hama['id'],
-  //                   editNamaController.text,
-  //                   editDeskripsiController.text,
-  //                   editPenangananController.text,
-  //                 );
-  //                 _fetchHama();
-  //                 Navigator.pop(context);
-  //               } catch (e) {
-  //                 print("Error updating hama: $e");
-  //               }
-  //             },
-  //             child: Text('Simpan', style: TextStyle(color: Colors.black)),
-  //           ),
-  //         ],
-  //       );
-  //     },
-  //   );
-  // }
-
   //pagination
   int currentPage = 0;
   int rowsPerPage = 10;
@@ -283,6 +161,38 @@ class _HamaPageState extends State<HamaPage> {
                                       color: Color(0xFF9DC08D),
                                     ),
                                     onPressed: () {
+                                      // Parse nilai_pakar dengan aman
+                                      double nilaiPakar = 0.0;
+                                      if (hama['nilai_pakar'] != null) {
+                                        // Coba parse jika string
+                                        if (hama['nilai_pakar'] is String) {
+                                          try {
+                                            String nilaiStr =
+                                                hama['nilai_pakar']
+                                                    .toString()
+                                                    .trim();
+                                            if (nilaiStr.isNotEmpty) {
+                                              nilaiPakar = double.parse(
+                                                nilaiStr.replaceAll(',', '.'),
+                                              );
+                                            }
+                                          } catch (e) {
+                                            print(
+                                              "Error parsing nilai_pakar: $e",
+                                            );
+                                          }
+                                        }
+                                        // Langsung gunakan jika sudah double
+                                        else if (hama['nilai_pakar']
+                                            is double) {
+                                          nilaiPakar = hama['nilai_pakar'];
+                                        }
+                                        // Jika int, konversi ke double
+                                        else if (hama['nilai_pakar'] is int) {
+                                          nilaiPakar =
+                                              hama['nilai_pakar'].toDouble();
+                                        }
+                                      }
                                       Navigator.push(
                                         context,
                                         MaterialPageRoute(
@@ -296,6 +206,7 @@ class _HamaPageState extends State<HamaPage> {
                                                 penangananAwal:
                                                     hama['penanganan'] ?? '',
                                                 gambarUrl: hama['foto'] ?? '',
+                                                nilai_pakar: nilaiPakar,
                                                 onHamaUpdated:
                                                     _fetchHama, // fungsi untuk refresh list setelah update
                                               ),
diff --git a/frontend/lib/admin/penyakit_page.dart b/frontend/lib/admin/penyakit_page.dart
index 66923b3..337e03b 100644
--- a/frontend/lib/admin/penyakit_page.dart
+++ b/frontend/lib/admin/penyakit_page.dart
@@ -162,6 +162,38 @@ class _PenyakitPageState extends State<PenyakitPage> {
                                       color: Color(0xFF9DC08D),
                                     ),
                                     onPressed: () {
+                                      // Parse nilai_pakar dengan aman
+                                      double nilaiPakar = 0.0;
+                                      if (penyakit['nilai_pakar'] != null) {
+                                        // Coba parse jika string
+                                        if (penyakit['nilai_pakar'] is String) {
+                                          try {
+                                            String nilaiStr =
+                                                penyakit['nilai_pakar']
+                                                    .toString()
+                                                    .trim();
+                                            if (nilaiStr.isNotEmpty) {
+                                              nilaiPakar = double.parse(
+                                                nilaiStr.replaceAll(',', '.'),
+                                              );
+                                            }
+                                          } catch (e) {
+                                            print(
+                                              "Error parsing nilai_pakar: $e",
+                                            );
+                                          }
+                                        }
+                                        // Langsung gunakan jika sudah double
+                                        else if (penyakit['nilai_pakar']
+                                            is double) {
+                                          nilaiPakar = penyakit['nilai_pakar'];
+                                        }
+                                        // Jika int, konversi ke double
+                                        else if (penyakit['nilai_pakar'] is int) {
+                                          nilaiPakar =
+                                              penyakit['nilai_pakar'].toDouble();
+                                        }
+                                      }
                                       Navigator.push(
                                         context,
                                         MaterialPageRoute(
@@ -176,6 +208,7 @@ class _PenyakitPageState extends State<PenyakitPage> {
                                                     penyakit['penanganan'] ?? '',
                                                 gambarUrl: 
                                                     penyakit['foto'] ?? '',
+                                                nilai_pakar: nilaiPakar,
                                                 onPenyakitUpdated:
                                                     _fetchPenyakit, // fungsi untuk refresh list setelah update
                                               ),
diff --git a/frontend/lib/admin/rule_page.dart b/frontend/lib/admin/rule_page.dart
index 2f8f7bf..d5e88b2 100644
--- a/frontend/lib/admin/rule_page.dart
+++ b/frontend/lib/admin/rule_page.dart
@@ -176,141 +176,176 @@ class _RulePageState extends State<RulePage> {
         padding: const EdgeInsets.all(16.0),
         child: Column(
           children: [
-            Align(
-              alignment: Alignment.centerRight,
-              child: ElevatedButton.icon(
-                onPressed: () {
-                  Navigator.push(
-                    context,
-                    MaterialPageRoute(
-                      builder:
-                          (context) => TambahRulePage(
-                            isEditing: false, // Menandakan mode tambah
-                            isEditingHama:
-                                true, // Atur sesuai dengan jenis rule
-                            selectedRuleIds: [],
-                            selectedGejalaIds: [],
-                            nilaiPakarList: [],
-                            selectedHamaId: null, // Hanya jika rule hama
-                            selectedPenyakitId:
-                                null, // Hanya jika rule penyakit
-                          ),
-                    ),
-                  ).then((_) => fetchRules());
-                },
-                icon: Icon(Icons.add),
-                label: Text("Tambah Rule"),
-              ),
+            Row(
+              mainAxisAlignment: MainAxisAlignment.end,
+              children: [
+                // Button untuk tambah rule hama
+                ElevatedButton.icon(
+                  onPressed: () {
+                    Navigator.push(
+                      context,
+                      MaterialPageRoute(
+                        builder: (context) => TambahRulePage(
+                          isEditing: false,
+                          isEditingHama: true, // Menandakan ini adalah rule hama
+                          selectedRuleIds: [],
+                          selectedGejalaIds: [],
+                          nilaiPakarList: [],
+                          selectedHamaId: null,
+                          selectedPenyakitId: null,
+                          showHamaOnly: true, // Parameter baru untuk menampilkan hanya dropdown hama
+                        ),
+                      ),
+                    ).then((_) => fetchRules());
+                  },
+                  icon: Icon(Icons.bug_report),
+                  label: Text("Tambah Rule Hama"),
+                  style: ElevatedButton.styleFrom(
+                    backgroundColor: Colors.green,
+                    foregroundColor: Colors.white,
+                  ),
+                ),
+                SizedBox(width: 10),
+                // Button untuk tambah rule penyakit
+                ElevatedButton.icon(
+                  onPressed: () {
+                    Navigator.push(
+                      context,
+                      MaterialPageRoute(
+                        builder: (context) => TambahRulePage(
+                          isEditing: false,
+                          isEditingHama: false, // Menandakan ini adalah rule penyakit
+                          selectedRuleIds: [],
+                          selectedGejalaIds: [],
+                          nilaiPakarList: [],
+                          selectedHamaId: null,
+                          selectedPenyakitId: null,
+                          showPenyakitOnly: true, // Parameter baru untuk menampilkan hanya dropdown penyakit
+                        ),
+                      ),
+                    ).then((_) => fetchRules());
+                  },
+                  icon: Icon(Icons.healing),
+                  label: Text("Tambah Rule Penyakit"),
+                  style: ElevatedButton.styleFrom(
+                    backgroundColor: Colors.blue,
+                    foregroundColor: Colors.white,
+                  ),
+                ),
+              ],
             ),
             const SizedBox(height: 16),
             isLoading
                 ? const Center(child: CircularProgressIndicator())
                 : Expanded(
-                  child: SingleChildScrollView(
-                    scrollDirection: Axis.horizontal,
-                    child: DataTable(
-                      columns: const [
-                        DataColumn(label: Text('No')),
-                        DataColumn(label: Text('Hama / Penyakit')),
-                        DataColumn(label: Text('Gejala')),
-                        DataColumn(label: Text('nilai pakar')),
-                        DataColumn(label: Text('Aksi')),
-                      ],
-                      rows: List.generate(rules.length, (index) {
-                        final rule = rules[index];
+                    child: SingleChildScrollView(
+                      scrollDirection: Axis.horizontal,
+                      child: DataTable(
+                        columns: const [
+                          DataColumn(label: Text('No')),
+                          DataColumn(label: Text('Hama / Penyakit')),
+                          DataColumn(label: Text('Gejala')),
+                          DataColumn(label: Text('nilai pakar')),
+                          DataColumn(label: Text('Aksi')),
+                        ],
+                        rows: List.generate(rules.length, (index) {
+                          final rule = rules[index];
 
-                        final namaKategori =
-                            rule['id_penyakit'] != null
-                                ? rule['nama_penyakit'] ?? '-'
-                                : rule['nama_hama'] ?? '-';
+                          final namaKategori =
+                              rule['id_penyakit'] != null
+                                  ? rule['nama_penyakit'] ?? '-'
+                                  : rule['nama_hama'] ?? '-';
 
-                        final isPenyakit = rule['id_penyakit'] != null;
+                          final isPenyakit = rule['id_penyakit'] != null;
 
-                        return DataRow(
-                          cells: [
-                            DataCell(Text((index + 1).toString())),
-                            DataCell(Text(namaKategori)),
-                            DataCell(Text(rule['nama_gejala'] ?? '-')),
-                            DataCell(
-                              Text(rule['nilai_pakar']?.toString() ?? '-'),
-                            ),
-                            DataCell(
-                              Row(
-                                children: [
-                                  IconButton(
-                                    icon: const Icon(
-                                      Icons.edit,
-                                      color: Colors.orange,
-                                    ),
-                                    onPressed: () {
-                                      if (rule != null &&
-                                          rule['id'] != null &&
-                                          rule['id_gejala'] != null &&
-                                          rule['nilai_pakar'] != null) {
-                                        Navigator.push(
-                                          context,
-                                          MaterialPageRoute(
-                                            builder:
-                                                (context) => EditRulePage(
-                                                  isEditing: true,
-                                                  isEditingHama: true,
-                                                  selectedRuleIds: [
-                                                    rule['id'] as int,
-                                                  ],
-                                                  selectedGejalaIds: [
-                                                    rule['id_gejala'] as int,
-                                                  ],
-                                                  nilaiPakarList: [
-                                                    (rule['nilai_pakar'] as num)
-                                                        .toDouble(),
-                                                  ],
-                                                  selectedHamaId:
-                                                      rule['id_hama']
-                                                          as int?,
-                                                  selectedPenyakitId: rule['id_penyakit'] as int?, // Tambahkan type cast ke int?
-                                                ),
-                                          ),
-                                        );
-                                      } else {
-                                        // Tampilkan pesan error jika data rule tidak lengkap
-                                        ScaffoldMessenger.of(
-                                          context,
-                                        ).showSnackBar(
-                                          SnackBar(
-                                            content: Text(
-                                              "Data rule tidak lengkap atau tidak valid",
-                                            ),
-                                            backgroundColor: Colors.red,
-                                          ),
-                                        );
-
-                                        // Debug info
-                                        print("Rule data: $rule");
-                                      }
-                                    },
-                                  ),
-
-                                  IconButton(
-                                    icon: const Icon(
-                                      Icons.delete,
-                                      color: Colors.red,
-                                    ),
-                                    onPressed: () {
-                                      deleteRule(rule);
-                                    },
-                                  ),
-                                ],
+                          return DataRow(
+                            cells: [
+                              DataCell(Text((index + 1).toString())),
+                              DataCell(Text(namaKategori)),
+                              DataCell(Text(rule['nama_gejala'] ?? '-')),
+                              DataCell(
+                                Text(rule['nilai_pakar']?.toString() ?? '-'),
                               ),
-                            ),
-                          ],
-                        );
-                      }),
+                              DataCell(
+                                Row(
+                                  children: [
+                                    IconButton(
+                                      icon: const Icon(
+                                        Icons.edit,
+                                        color: Colors.orange,
+                                      ),
+                                      onPressed: () {
+                                        if (rule != null &&
+                                            rule['id'] != null &&
+                                            rule['id_gejala'] != null &&
+                                            rule['nilai_pakar'] != null) {
+                                          // Tentukan jenis rule untuk editing
+                                          final bool editingHama = rule['id_hama'] != null;
+                                          
+                                          Navigator.push(
+                                            context,
+                                            MaterialPageRoute(
+                                              builder: (context) => EditRulePage(
+                                                isEditing: true,
+                                                isEditingHama: editingHama,
+                                                selectedRuleIds: [
+                                                  rule['id'] as int,
+                                                ],
+                                                selectedGejalaIds: [
+                                                  rule['id_gejala'] as int,
+                                                ],
+                                                nilaiPakarList: [
+                                                  (rule['nilai_pakar'] as num)
+                                                      .toDouble(),
+                                                ],
+                                                selectedHamaId:
+                                                    rule['id_hama'] as int?,
+                                                selectedPenyakitId: rule['id_penyakit'] as int?,
+                                                // Tambahkan parameter untuk menentukan dropdown yang ditampilkan
+                                                showHamaOnly: editingHama,
+                                                showPenyakitOnly: !editingHama,
+                                              ),
+                                            ),
+                                          ).then((_) => fetchRules());
+                                        } else {
+                                          // Tampilkan pesan error jika data rule tidak lengkap
+                                          ScaffoldMessenger.of(
+                                            context,
+                                          ).showSnackBar(
+                                            SnackBar(
+                                              content: Text(
+                                                "Data rule tidak lengkap atau tidak valid",
+                                              ),
+                                              backgroundColor: Colors.red,
+                                            ),
+                                          );
+
+                                          // Debug info
+                                          print("Rule data: $rule");
+                                        }
+                                      },
+                                    ),
+                                    IconButton(
+                                      icon: const Icon(
+                                        Icons.delete,
+                                        color: Colors.red,
+                                      ),
+                                      onPressed: () {
+                                        deleteRule(rule);
+                                      },
+                                    ),
+                                  ],
+                                ),
+                              ),
+                            ],
+                          );
+                        }),
+                      ),
                     ),
                   ),
-                ),
           ],
         ),
       ),
     );
   }
-}
+}
\ No newline at end of file
diff --git a/frontend/lib/admin/tambah_hama_page.dart b/frontend/lib/admin/tambah_hama_page.dart
index 7566ad7..8d9605e 100644
--- a/frontend/lib/admin/tambah_hama_page.dart
+++ b/frontend/lib/admin/tambah_hama_page.dart
@@ -19,6 +19,7 @@ class _TambahHamaPageState extends State<TambahHamaPage> {
   final TextEditingController namaController = TextEditingController();
   final TextEditingController deskripsiController = TextEditingController();
   final TextEditingController penangananController = TextEditingController();
+  final TextEditingController nilaiPakarController = TextEditingController();
   final ApiService apiService = ApiService();
   final ImagePicker _picker = ImagePicker();
   File? _imageFile;
@@ -32,19 +33,24 @@ class _TambahHamaPageState extends State<TambahHamaPage> {
     namaController.dispose();
     deskripsiController.dispose();
     penangananController.dispose();
+    nilaiPakarController.dispose();
     super.dispose();
   }
 
   Future<void> _simpanHama() async {
     if (namaController.text.isNotEmpty &&
         deskripsiController.text.isNotEmpty &&
-        penangananController.text.isNotEmpty) {
+        penangananController.text.isNotEmpty &&
+        nilaiPakarController.text.isNotEmpty) {
       try {
+        String nilaiInput = nilaiPakarController.text.replaceAll(',', '.');
+        double nilaiPakar = double.parse(nilaiInput);
         await apiService.createHama(
           namaController.text,
           deskripsiController.text,
           penangananController.text,
-          _pickedFile,         
+          _pickedFile,
+          nilaiPakar,         
         );
         widget.onHamaAdded();
         Navigator.pop(context);
@@ -136,6 +142,12 @@ class _TambahHamaPageState extends State<TambahHamaPage> {
                           maxLines: 3,
                         ),
                         SizedBox(height: 15),
+                        TextField(
+                          controller: nilaiPakarController,
+                          decoration: InputDecoration(labelText: 'Nilai Pakar'),
+                          maxLines: 3,
+                        ),
+                        SizedBox(height: 15),
                         Text('Foto'),
                     (_webImage != null)
                         ? Image.memory(
diff --git a/frontend/lib/admin/tambah_penyakit_page.dart b/frontend/lib/admin/tambah_penyakit_page.dart
index d908fe4..51f6daa 100644
--- a/frontend/lib/admin/tambah_penyakit_page.dart
+++ b/frontend/lib/admin/tambah_penyakit_page.dart
@@ -18,6 +18,7 @@ class _TambahPenyakitPageState extends State<TambahPenyakitPage> {
   final TextEditingController namaController = TextEditingController();
   final TextEditingController deskripsiController = TextEditingController();
   final TextEditingController penangananController = TextEditingController();
+  final TextEditingController nilaiPakarController = TextEditingController();
   final ApiService apiService = ApiService();
   final ImagePicker _picker = ImagePicker();
   File? _imageFile;
@@ -31,19 +32,24 @@ class _TambahPenyakitPageState extends State<TambahPenyakitPage> {
     namaController.dispose();
     deskripsiController.dispose();
     penangananController.dispose();
+    nilaiPakarController.dispose();
     super.dispose();
   }
 
   Future<void> _simpanPenyakit() async {
     if (namaController.text.isNotEmpty &&
         deskripsiController.text.isNotEmpty &&
-        penangananController.text.isNotEmpty) {
+        penangananController.text.isNotEmpty &&
+        nilaiPakarController.text.isNotEmpty) {
       try {
+        String nilaiInput = nilaiPakarController.text.replaceAll(',', '.');
+        double nilaiPakar = double.parse(nilaiInput);
         await apiService.createPenyakit(
           namaController.text,
           deskripsiController.text,
           penangananController.text,
           _pickedFile,
+          nilaiPakar,
         );
         widget.onPenyakitAdded();
         Navigator.pop(context);
@@ -135,6 +141,12 @@ class _TambahPenyakitPageState extends State<TambahPenyakitPage> {
                           maxLines: 3,
                         ),
                         SizedBox(height: 15),
+                        TextField(
+                          controller: nilaiPakarController,
+                          decoration: InputDecoration(labelText: 'nilai pakar'),
+                          maxLines: 3,
+                        ),
+                        SizedBox(height: 15),
                         (_webImage != null)
                         ? Image.memory(
                           _webImage!,
diff --git a/frontend/lib/admin/tambah_rule_page.dart b/frontend/lib/admin/tambah_rule_page.dart
index 539538b..64e6327 100644
--- a/frontend/lib/admin/tambah_rule_page.dart
+++ b/frontend/lib/admin/tambah_rule_page.dart
@@ -13,6 +13,8 @@ class TambahRulePage extends StatefulWidget {
   final List<double> nilaiPakarList;
   final int? selectedHamaId;
   final int? selectedPenyakitId;
+  final bool showHamaOnly; // Tambahkan ini
+  final bool showPenyakitOnly;
 
   const TambahRulePage({
     Key? key,
@@ -23,6 +25,8 @@ class TambahRulePage extends StatefulWidget {
     required this.nilaiPakarList,
     this.selectedHamaId,
     this.selectedPenyakitId,
+    this.showHamaOnly = false, // Tambahkan default value
+    this.showPenyakitOnly = false,
   }) : super(key: key);
 }
 
@@ -31,12 +35,16 @@ class _TambahRulePageState extends State<TambahRulePage> {
   int? selectedPenyakitId;
   List<int?> selectedGejalaIds = [null];
   List<double> nilaiPakarList = [0.5];
-  List<int?> selectedRuleIds = []; // List paralel dengan selectedGejalaIds dan nilaiPakarList
+  List<int?> selectedRuleIds =
+      []; // List paralel dengan selectedGejalaIds dan nilaiPakarList
 
   bool isEditing = true; // atau false jika sedang edit penyakit
 
   bool isLoading = true;
 
+  bool showHamaOnly = false;
+  bool showPenyakitOnly = false;
+
   final api = ApiService();
 
   // Deklarasi variabel untuk menampung data dari API
@@ -119,6 +127,8 @@ class _TambahRulePageState extends State<TambahRulePage> {
   @override
   void initState() {
     super.initState();
+    showHamaOnly = widget.showHamaOnly;
+    showPenyakitOnly = widget.showPenyakitOnly;
     fetchData(); // Panggil fetchData saat halaman dibuka pertama kali
   }
 
@@ -173,57 +183,6 @@ class _TambahRulePageState extends State<TambahRulePage> {
     }
   }
 
-  // void updateRules() async {
-  //   if (selectedPenyakitId == null && selectedHamaId == null) {
-  //     ScaffoldMessenger.of(context).showSnackBar(
-  //       SnackBar(content: Text("Pilih minimal satu: Penyakit atau Hama")),
-  //     );
-  //     return;
-  //   }
-
-  //   try {
-  //     for (int i = 0; i < selectedGejalaIds.length; i++) {
-  //       final idRule = selectedRuleIds[i];
-  //       final idGejala = selectedGejalaIds[i];
-  //       final nilai = nilaiPakarList[i];
-
-  //       if (idRule != null && idGejala != null) {
-  //         http.Response response;
-
-  //         if (selectedPenyakitId != null) {
-  //           response = await ApiService.updateRulePenyakit(
-  //             id: idRule,
-  //             idGejala: idGejala,
-  //             idPenyakit: selectedPenyakitId,
-  //             nilaiPakar: nilai,
-  //           );
-  //         } else {
-  //           response = await ApiService.updateRuleHama(
-  //             id: idRule,
-  //             idGejala: idGejala,
-  //             idHama: selectedHamaId,
-  //             nilaiPakar: nilai,
-  //           );
-  //         }
-
-  //         if (response.statusCode != 200 && response.statusCode != 201) {
-  //           throw Exception("Gagal mengupdate rule");
-  //         }
-  //       }
-  //     }
-
-  //     ScaffoldMessenger.of(
-  //       context,
-  //     ).showSnackBar(SnackBar(content: Text("Data berhasil diperbarui")));
-  //     Navigator.pop(context);
-  //   } catch (e) {
-  //     print('Gagal memperbarui data: $e');
-  //     ScaffoldMessenger.of(
-  //       context,
-  //     ).showSnackBar(SnackBar(content: Text("Gagal memperbarui data")));
-  //   }
-  // }
-
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -243,62 +202,68 @@ class _TambahRulePageState extends State<TambahRulePage> {
                     child: ListView(
                       children: [
                         // Pilih Hama
-                        Text("Pilih Hama"),
-                        DropdownButton<int>(
-                          isExpanded: true,
-                          value: selectedHamaId,
-                          hint: Text('Pilih Hama'),
-                          items:
-                              hamaList.isNotEmpty
-                                  ? hamaList.map<DropdownMenuItem<int>>((hama) {
-                                    return DropdownMenuItem<int>(
-                                      value: hama['id'],
-                                      child: Text(hama['nama']),
-                                    );
-                                  }).toList()
-                                  : [
-                                    DropdownMenuItem<int>(
-                                      value: null,
-                                      child: Text("Data tidak tersedia"),
-                                    ),
-                                  ],
-                          onChanged: (value) {
-                            setState(() {
-                              selectedHamaId = value;
-                            });
-                          },
-                        ),
-                        SizedBox(height: 16),
+                        if (!showPenyakitOnly) ...[
+                          Text("Pilih Hama"),
+                          DropdownButton<int>(
+                            isExpanded: true,
+                            value: selectedHamaId,
+                            hint: Text('Pilih Hama'),
+                            items:
+                                hamaList.isNotEmpty
+                                    ? hamaList.map<DropdownMenuItem<int>>((
+                                      hama,
+                                    ) {
+                                      return DropdownMenuItem<int>(
+                                        value: hama['id'],
+                                        child: Text(hama['nama']),
+                                      );
+                                    }).toList()
+                                    : [
+                                      DropdownMenuItem<int>(
+                                        value: null,
+                                        child: Text("Data tidak tersedia"),
+                                      ),
+                                    ],
+                            onChanged: (value) {
+                              setState(() {
+                                selectedHamaId = value;
+                              });
+                            },
+                          ),
+                          SizedBox(height: 16),
+                        ],
 
                         // Pilih Penyakit
-                        Text("Pilih Penyakit"),
-                        DropdownButton<int>(
-                          isExpanded: true,
-                          value: selectedPenyakitId,
-                          hint: Text('Pilih Penyakit'),
-                          items:
-                              penyakitList.isNotEmpty
-                                  ? penyakitList.map<DropdownMenuItem<int>>((
-                                    penyakit,
-                                  ) {
-                                    return DropdownMenuItem<int>(
-                                      value: penyakit['id'],
-                                      child: Text(penyakit['nama']),
-                                    );
-                                  }).toList()
-                                  : [
-                                    DropdownMenuItem<int>(
-                                      value: null,
-                                      child: Text("Data tidak tersedia"),
-                                    ),
-                                  ],
-                          onChanged: (value) {
-                            setState(() {
-                              selectedPenyakitId = value;
-                            });
-                          },
-                        ),
-                        SizedBox(height: 16),
+                        if (!showHamaOnly) ...[
+                          Text("Pilih Penyakit"),
+                          DropdownButton<int>(
+                            isExpanded: true,
+                            value: selectedPenyakitId,
+                            hint: Text('Pilih Penyakit'),
+                            items:
+                                penyakitList.isNotEmpty
+                                    ? penyakitList.map<DropdownMenuItem<int>>((
+                                      penyakit,
+                                    ) {
+                                      return DropdownMenuItem<int>(
+                                        value: penyakit['id'],
+                                        child: Text(penyakit['nama']),
+                                      );
+                                    }).toList()
+                                    : [
+                                      DropdownMenuItem<int>(
+                                        value: null,
+                                        child: Text("Data tidak tersedia"),
+                                      ),
+                                    ],
+                            onChanged: (value) {
+                              setState(() {
+                                selectedPenyakitId = value;
+                              });
+                            },
+                          ),
+                          SizedBox(height: 16),
+                        ],
 
                         // Pilih Gejala dan Nilai Pakar
                         Text("Pilih Gejala"),
@@ -398,7 +363,33 @@ class _TambahRulePageState extends State<TambahRulePage> {
                         // Tombol untuk menambah rule
                         ElevatedButton(
                           onPressed: () {
-                            // Panggil fungsi saveRules untuk menyimpan data
+                            // Cek duplikasi gejala
+                            final uniqueGejala = selectedGejalaIds.toSet();
+                            if (uniqueGejala.length !=
+                                selectedGejalaIds.length) {
+                              ScaffoldMessenger.of(context).showSnackBar(
+                                SnackBar(
+                                  content: Text(
+                                    'Terdapat gejala yang sama, harap pilih gejala yang berbeda.',
+                                  ),
+                                ),
+                              );
+                              return; // Gagal simpan
+                            }
+
+                            // Cek apakah semua nilai gejala sudah dipilih (tidak null)
+                            if (selectedGejalaIds.contains(null)) {
+                              ScaffoldMessenger.of(context).showSnackBar(
+                                SnackBar(
+                                  content: Text(
+                                    'Harap lengkapi semua pilihan gejala.',
+                                  ),
+                                ),
+                              );
+                              return;
+                            }
+
+                            // Panggil fungsi saveRules jika valid
                             saveRules();
                           },
                           child: Text('Tambah Rule'),
diff --git a/frontend/lib/api_services/api_services.dart b/frontend/lib/api_services/api_services.dart
index 477b4bb..e9ef531 100644
--- a/frontend/lib/api_services/api_services.dart
+++ b/frontend/lib/api_services/api_services.dart
@@ -13,6 +13,7 @@ class ApiService {
   static const String penyakitUrl = 'http://localhost:5000/api/penyakit';
   static const String rulesPenyakitUrl ='http://localhost:5000/api/rules_penyakit';
   static const String rulesHamaUrl = 'http://localhost:5000/api/rules_hama';
+  static const String userUrl = 'http://localhost:5000/api/users';
   static const Duration timeout = Duration(seconds: 15);
 
   // Fungsi Login (dengan perbaikan)
@@ -123,7 +124,6 @@ class ApiService {
   }
 
   // Ambil semua hama
-  // Get all hama
   Future<List<Map<String, dynamic>>> getHama() async {
     try {
       final response = await http.get(Uri.parse(hamaUrl)).timeout(timeout);
@@ -251,6 +251,7 @@ class ApiService {
     String deskripsi,
     String penanganan,
     XFile? pickedFile,
+    double nilai_pakar
   ) async {
     try {
       var uri = Uri.parse(hamaUrl);
@@ -259,6 +260,7 @@ class ApiService {
       request.fields['nama'] = nama;
       request.fields['deskripsi'] = deskripsi;
       request.fields['penanganan'] = penanganan;
+       request.fields['nilai_pakar'] = nilai_pakar.toString();
 
       print('Mengirim request ke: $uri');
       print('Dengan fields: ${request.fields}');
@@ -330,6 +332,7 @@ class ApiService {
     String deskripsi,
     String penanganan,
     XFile? pickedFile,
+    double nilai_pakar
   ) async {
     try {
       var uri = Uri.parse('$hamaUrl/$id');
@@ -339,6 +342,7 @@ class ApiService {
       request.fields['nama'] = nama;
       request.fields['deskripsi'] = deskripsi;
       request.fields['penanganan'] = penanganan;
+      request.fields['nilai_pakar'] = nilai_pakar.toString();
 
       // Log untuk debugging
       print('Mengirim request ke: $uri');
@@ -524,12 +528,33 @@ class ApiService {
     }
   }
 
+  Future<Uint8List?> getPenyakitImageBytesByFilename(String filename) async {
+  try {
+    final url = Uri.parse('http://localhost:5000/image_penyakit/$filename');
+    print('Fetching image from: $url');
+    final response = await http.get(url);
+
+    if (response.statusCode == 200) {
+      return response.bodyBytes;
+    } else {
+      print('Failed to fetch image. Status: ${response.statusCode}');
+      print('Response body: ${response.body}');
+      return null;
+    }
+  } catch (e) {
+    print('Error fetching image by filename: $e');
+    return null;
+  }
+}
+
+
   // Tambah penyakit baru (kode otomatis)
   Future<Map<String, dynamic>> createPenyakit(
     String nama,
     String deskripsi,
     String penanganan,
     XFile? pickedFile,
+    double nilai_pakar
   ) async {
     try {
       var uri = Uri.parse(penyakitUrl);
@@ -538,6 +563,7 @@ class ApiService {
       request.fields['nama'] = nama;
       request.fields['deskripsi'] = deskripsi;
       request.fields['penanganan'] = penanganan;
+      request.fields['nilai_pakar'] = nilai_pakar.toString();
 
       print('Mengirim request ke: $uri');
       print('Dengan fields: ${request.fields}');
@@ -609,6 +635,7 @@ class ApiService {
     String deskripsi,
     String penanganan,
     XFile? pickedFile,
+    double nilai_pakar
   ) async {
     try {
       var uri = Uri.parse('$penyakitUrl/$id');
@@ -618,6 +645,7 @@ class ApiService {
       request.fields['nama'] = nama;
       request.fields['deskripsi'] = deskripsi;
       request.fields['penanganan'] = penanganan;
+      request.fields['nilai_pakar'] = nilai_pakar.toString();
 
       // Log untuk debugging
       print('Mengirim request ke: $uri');
@@ -889,4 +917,39 @@ class ApiService {
     final response = await http.delete(Uri.parse('$rulesHamaUrl/$id'));
     return response;
   }
+
+  //get users
+  Future<List<Map<String, dynamic>>> getUsers({String? role}) async {
+  try {
+    String url = ApiService.userUrl;
+    if (role != null) {
+      url += '?role=$role';
+    }
+
+    final response = await http.get(Uri.parse(url));
+
+    if (response.statusCode == 200) {
+      final List<dynamic> responseData = jsonDecode(response.body);
+
+      // Filter berdasarkan role jika perlu
+      if (role != null) {
+        // Mengambil user dengan role yang sesuai
+        final filteredData = responseData.where((user) => user['role'] == role).toList();
+        return List<Map<String, dynamic>>.from(filteredData);
+      }
+
+      // Jika tidak ada filter role, kembalikan semua data
+      return List<Map<String, dynamic>>.from(responseData);
+    } else {
+      throw Exception("Gagal mengambil data user: ${response.statusCode}");
+    }
+  } catch (e) {
+    print("Error getUsers: $e");
+    throw Exception("Gagal mengambil data user");
+  }
 }
+
+
+}
+
+
diff --git a/frontend/lib/user/detail_hama_page.dart b/frontend/lib/user/detail_hama_page.dart
index 3b6690e..2ff5f8c 100644
--- a/frontend/lib/user/detail_hama_page.dart
+++ b/frontend/lib/user/detail_hama_page.dart
@@ -57,23 +57,40 @@ class _DetailHamaPageState extends State<DetailHamaPage> {
   // Widget untuk menampilkan gambar dengan penanganan error yang lebih baik
   Widget _buildImageWidget(String? filename) {
     if (filename == null || filename.isEmpty) {
-      return Text("Tidak ada gambar tersedia");
+      return _buildPlaceholderImage(
+        "Tidak ada gambar tersedia",
+        Icons.image_not_supported,
+      );
     }
 
     return FutureBuilder<Uint8List?>(
       future: ApiService().getHamaImageBytesByFilename(filename),
       builder: (context, snapshot) {
         if (snapshot.connectionState == ConnectionState.waiting) {
-          return CircularProgressIndicator();
+          return SizedBox(
+            height: 200,
+            width: double.infinity,
+            child: Center(child: CircularProgressIndicator()),
+          );
         } else if (snapshot.hasError || snapshot.data == null) {
-          return Text("Gagal memuat gambar");
+          return _buildPlaceholderImage(
+            "Gagal memuat gambar",
+            Icons.broken_image,
+          );
         } else {
-          return Image.memory(snapshot.data!, fit: BoxFit.cover);
+          return ClipRRect(
+            borderRadius: BorderRadius.circular(12),
+            child: Image.memory(
+              snapshot.data!,
+              height: 200,
+              width: double.infinity,
+              fit: BoxFit.contain, // untuk memastikan proporsional & penuh
+            ),
+          );
         }
       },
     );
-}
-
+  }
 
   // Widget untuk placeholder gambar
   Widget _buildPlaceholderImage(String message, IconData icon) {
diff --git a/frontend/lib/user/detail_penyakit_page.dart b/frontend/lib/user/detail_penyakit_page.dart
index 3a110b9..90e1ecf 100644
--- a/frontend/lib/user/detail_penyakit_page.dart
+++ b/frontend/lib/user/detail_penyakit_page.dart
@@ -1,9 +1,122 @@
 import 'package:flutter/material.dart';
+import 'package:frontend/api_services/api_services.dart';
+import 'dart:typed_data';
 
-class DetailPenyakitPage extends StatelessWidget {
-  final Map<String, dynamic> detailPenyakit;
+class DetailPenyakitPage extends StatefulWidget {
+  final Map<String, dynamic> DetailPenyakit;
+  final int? penyakitId;
 
-  const DetailPenyakitPage({required this.detailPenyakit});
+  const DetailPenyakitPage({Key? key, required this.DetailPenyakit, this.penyakitId})
+    : super(key: key);
+
+  @override
+  _DetailPenyakitPageState createState() => _DetailPenyakitPageState();
+}
+
+class _DetailPenyakitPageState extends State<DetailPenyakitPage> {
+  late Future<Map<String, dynamic>> _detailPenyakitFuture;
+  late Map<String, dynamic> _currentDetailPenyakit;
+
+  @override
+  void initState() {
+    super.initState();
+    _currentDetailPenyakit = widget.DetailPenyakit;
+
+    // Jika hamaId tersedia, fetch data terbaru dari API
+    if (widget.penyakitId != null) {
+      _detailPenyakitFuture = _fetchDetailPenyakit(widget.penyakitId!);
+    } else {
+      // Jika tidak ada ID, gunakan data yang sudah diberikan
+      _detailPenyakitFuture = Future.value(widget.DetailPenyakit);
+    }
+  }
+
+  Future<Map<String, dynamic>> _fetchDetailPenyakit(int id) async {
+    try {
+      final detailData = await ApiService().getPenyakitById(id);
+      setState(() {
+        _currentDetailPenyakit = detailData;
+      });
+      return detailData;
+    } catch (e) {
+      print('Error fetching detail penyakit: $e');
+      // Jika gagal fetch, gunakan data yang sudah ada
+      return widget.DetailPenyakit;
+    }
+  }
+
+  // Fungsi untuk memvalidasi URL gambar
+  bool _isValidImageUrl(String? url) {
+    if (url == null || url.isEmpty) return false;
+
+    // Periksa apakah URL berakhir dengan ekstensi gambar yang umum
+    final validExtensions = ['.jpg', '.jpeg', '.png', '.gif', '.webp'];
+    return validExtensions.any((ext) => url.toLowerCase().endsWith(ext));
+  }
+
+  // Widget untuk menampilkan gambar dengan penanganan error yang lebih baik
+  Widget _buildImageWidget(String? filename) {
+    if (filename == null || filename.isEmpty) {
+      return _buildPlaceholderImage(
+        "Tidak ada gambar tersedia",
+        Icons.image_not_supported,
+      );
+    }
+
+    return FutureBuilder<Uint8List?>(
+      future: ApiService().getPenyakitImageBytesByFilename(filename),
+      builder: (context, snapshot) {
+        if (snapshot.connectionState == ConnectionState.waiting) {
+          return SizedBox(
+            height: 200,
+            width: double.infinity,
+            child: Center(child: CircularProgressIndicator()),
+          );
+        } else if (snapshot.hasError || snapshot.data == null) {
+          return _buildPlaceholderImage(
+            "Gagal memuat gambar",
+            Icons.broken_image,
+          );
+        } else {
+          return ClipRRect(
+            borderRadius: BorderRadius.circular(12),
+            child: Image.memory(
+              snapshot.data!,
+              height: 200,
+              width: double.infinity,
+              fit: BoxFit.contain, // untuk memastikan proporsional & penuh
+            ),
+          );
+        }
+      },
+    );
+  }
+
+  // Widget untuk placeholder gambar
+  Widget _buildPlaceholderImage(String message, IconData icon) {
+    return Container(
+      height: 200,
+      width: double.infinity,
+      decoration: BoxDecoration(
+        color: Colors.grey[200],
+        borderRadius: BorderRadius.circular(12),
+      ),
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Icon(icon, size: 64, color: Colors.grey[600]),
+          SizedBox(height: 8),
+          Text(
+            message,
+            style: TextStyle(
+              color: Colors.grey[600],
+              fontWeight: FontWeight.bold,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
 
   @override
   Widget build(BuildContext context) {
@@ -11,96 +124,123 @@ class DetailPenyakitPage extends StatelessWidget {
       backgroundColor: Color(0xFF9DC08D),
       appBar: AppBar(
         backgroundColor: Color(0xFF9DC08D),
-        title: Text(
-          "Detail Penyakit",
-          style: TextStyle(color: Colors.white),
-        ),
+        title: Text("Detail Penyakit", style: TextStyle(color: Colors.white)),
         leading: IconButton(
           icon: Icon(Icons.arrow_back, color: Colors.white),
           onPressed: () => Navigator.of(context).pop(),
         ),
       ),
-      body: SingleChildScrollView(
-        child: Padding(
-          padding: const EdgeInsets.all(16.0),
-          child: Column(
-            children: [
-              if (detailPenyakit["gambar"] != null && detailPenyakit["gambar"]!.isNotEmpty)
-                ClipRRect(
+      body: FutureBuilder<Map<String, dynamic>>(
+        future: _detailPenyakitFuture,
+        builder: (context, snapshot) {
+          if (snapshot.connectionState == ConnectionState.waiting) {
+            return Center(
+              child: CircularProgressIndicator(color: Colors.white),
+            );
+          }
+
+          if (snapshot.hasError) {
+            print('Error: ${snapshot.error}');
+            // Tampilkan data yang sudah ada jika terjadi error
+            return _buildDetailContent(_currentDetailPenyakit);
+          }
+          print("Snapshot data runtimeType: ${snapshot.data.runtimeType}");
+          print("Snapshot data content: ${snapshot.data}");
+
+          // Jika berhasil fetch data baru, tampilkan data tersebut
+          final detailData = snapshot.data ?? _currentDetailPenyakit;
+          return _buildDetailContent(detailData);
+        },
+      ),
+    );
+  }
+
+  Widget _buildDetailContent(Map<String, dynamic> detailData) {
+    return SingleChildScrollView(
+      child: Padding(
+        padding: const EdgeInsets.all(16.0),
+        child: Column(
+          children: [
+            // Tampilkan foto dari database dengan penanganan error yang lebih baik
+            _buildImageWidget(detailData["foto"]),
+            SizedBox(height: 16),
+
+            // Card Nama Hama
+            SizedBox(
+              width: double.infinity,
+              child: Card(
+                elevation: 6,
+                shape: RoundedRectangleBorder(
                   borderRadius: BorderRadius.circular(12),
-                  child: Image.asset(
-                    detailPenyakit["gambar"]!,
-                    height: 200,
-                    width: 200, // Biar gambar full lebar
-                    fit: BoxFit.cover,
-                  ),
                 ),
-              SizedBox(height: 16),
-
-              // Card Nama Penyakit
-              SizedBox(
-                width: double.infinity, // Bikin card full lebar
-                child: Card(
-                  elevation: 6,
-                  shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
-                  child: Padding(
-                    padding: const EdgeInsets.all(16.0),
-                    child: Column(
-                      crossAxisAlignment: CrossAxisAlignment.start,
-                      children: [
-                        Text(
-                          "Nama Penyakit:",
-                          style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Text(
+                        "Nama Penyakit:",
+                        style: TextStyle(
+                          fontSize: 18,
+                          fontWeight: FontWeight.bold,
                         ),
-                        SizedBox(height: 8),
-                        Text(
-                          detailPenyakit["nama"] ?? "Nama penyakit tidak tersedia",
-                          style: TextStyle(fontSize: 16),
-                        ),
-                      ],
-                    ),
+                      ),
+                      SizedBox(height: 8),
+                      Text(
+                        detailData["nama"] ?? "Nama hama tidak tersedia",
+                        style: TextStyle(fontSize: 16),
+                      ),
+                    ],
                   ),
                 ),
               ),
-              SizedBox(height: 16),
+            ),
+            SizedBox(height: 16),
 
-              // Card Deskripsi + Penanganan
-              SizedBox(
-                width: double.infinity, // Bikin card full lebar
-                child: Card(
-                  elevation: 6,
-                  shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
-                  child: Padding(
-                    padding: const EdgeInsets.all(16.0),
-                    child: Column(
-                      crossAxisAlignment: CrossAxisAlignment.start,
-                      children: [
-                        Text(
-                          "Deskripsi:",
-                          style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+            // Card Deskripsi + Penanganan
+            SizedBox(
+              width: double.infinity,
+              child: Card(
+                elevation: 6,
+                shape: RoundedRectangleBorder(
+                  borderRadius: BorderRadius.circular(12),
+                ),
+                child: Padding(
+                  padding: const EdgeInsets.all(16.0),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Text(
+                        "Deskripsi:",
+                        style: TextStyle(
+                          fontSize: 18,
+                          fontWeight: FontWeight.bold,
                         ),
-                        SizedBox(height: 8),
-                        Text(
-                          detailPenyakit["deskripsi"] ?? "Deskripsi tidak tersedia",
-                          style: TextStyle(fontSize: 16),
+                      ),
+                      SizedBox(height: 8),
+                      Text(
+                        detailData["deskripsi"] ?? "Deskripsi tidak tersedia",
+                        style: TextStyle(fontSize: 16),
+                      ),
+                      SizedBox(height: 16),
+                      Text(
+                        "Penanganan:",
+                        style: TextStyle(
+                          fontSize: 18,
+                          fontWeight: FontWeight.bold,
                         ),
-                        SizedBox(height: 16),
-                        Text(
-                          "Penanganan:",
-                          style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
-                        ),
-                        SizedBox(height: 8),
-                        Text(
-                          detailPenyakit["penanganan"] ?? "Penanganan tidak tersedia",
-                          style: TextStyle(fontSize: 16),
-                        ),
-                      ],
-                    ),
+                      ),
+                      SizedBox(height: 8),
+                      Text(
+                        detailData["penanganan"] ?? "Penanganan tidak tersedia",
+                        style: TextStyle(fontSize: 16),
+                      ),
+                    ],
                   ),
                 ),
               ),
-            ],
-          ),
+            ),
+          ],
         ),
       ),
     );
diff --git a/frontend/lib/user/penyakit_page.dart b/frontend/lib/user/penyakit_page.dart
index bbfb8d2..2df119f 100644
--- a/frontend/lib/user/penyakit_page.dart
+++ b/frontend/lib/user/penyakit_page.dart
@@ -68,7 +68,7 @@ class _PenyakitPageState extends State<PenyakitPage> {
                         Navigator.push(
                           context,
                           MaterialPageRoute(
-                            builder: (context) => DetailPenyakitPage(detailPenyakit: penyakit),
+                            builder: (context) => DetailPenyakitPage(DetailPenyakit: penyakit),
                           ),
                         );
                       },