import 'dart:convert';
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:http/http.dart' as http;

const String baseUrl = "http://ta.myhost.id/E31230549/mposyandu_api";

class RiwayatJadwalPosyanduPage extends StatefulWidget {
  const RiwayatJadwalPosyanduPage({super.key});

  @override
  State<RiwayatJadwalPosyanduPage> createState() =>
      _RiwayatJadwalPosyanduPageState();
}

class _RiwayatJadwalPosyanduPageState extends State<RiwayatJadwalPosyanduPage> {
  List<Map<String, dynamic>> dataRiwayat = [];
  List<Map<String, dynamic>> dataFilter = [];
  bool isLoading = true;
  final TextEditingController searchController = TextEditingController();

  int _currentPage = 0;
  final int _rowsPerPage = 5;

  List<Map<String, dynamic>> get _paginatedData {
    if (dataFilter.isEmpty) return [];
    final start = _currentPage * _rowsPerPage;
    final end = start + _rowsPerPage;
    if (start >= dataFilter.length) return [];
    return dataFilter.sublist(
        start, end > dataFilter.length ? dataFilter.length : end);
  }

  @override
  void initState() {
    super.initState();
    loadRiwayat();
  }

  Future<void> loadRiwayat() async {
    try {
      final res = await http.get(
        Uri.parse("$baseUrl/jadwal_posyandu/get_all_jadwal.php"),
      );
      final data = jsonDecode(res.body);
      if (data['success']) {
        setState(() {
          dataRiwayat = List<Map<String, dynamic>>.from(data['data']);
          dataFilter = dataRiwayat;
          isLoading = false;
        });
      }
    } catch (e) {
      debugPrint("Error riwayat : $e");
      setState(() => isLoading = false);
    }
  }

  String formatTanggal(String tanggal) {
    try {
      final parts = tanggal.split("-");
      String tahun = parts[0];
      int bulan = int.parse(parts[1]);
      String hari = parts[2];
      List<String> namaBulan = [
        "",
        "Januari",
        "Februari",
        "Maret",
        "April",
        "Mei",
        "Juni",
        "Juli",
        "Agustus",
        "September",
        "Oktober",
        "November",
        "Desember"
      ];
      return "$hari ${namaBulan[bulan]} $tahun";
    } catch (e) {
      return tanggal;
    }
  }

  void searchData(String keyword) {
    final key = keyword.toLowerCase();
    setState(() {
      dataFilter = dataRiwayat.where((item) {
        return item['tanggal'].toString().toLowerCase().contains(key) ||
            item['lokasi'].toString().toLowerCase().contains(key) ||
            item['dusun'].toString().toLowerCase().contains(key);
      }).toList();
      _currentPage = 0;
    });
  }

  Future<void> hapusJadwal(String id) async {
    final res = await http.post(
      Uri.parse("$baseUrl/jadwal_posyandu/hapus_jadwal_posyandu.php"),
      body: {"id": id},
    );
    final data = jsonDecode(res.body);
    if (data['success']) {
      loadRiwayat();
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
            content: Text("Jadwal berhasil dihapus",
                style: GoogleFonts.poppins(fontSize: 12))),
      );
    }
  }

  void konfirmasiHapus(String id) {
    showDialog(
      context: context,
      builder: (_) => AlertDialog(
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(15)),
        title: Text("Hapus Jadwal",
            style:
                GoogleFonts.poppins(fontWeight: FontWeight.bold, fontSize: 14)),
        content: Text("Apakah yakin ingin menghapus jadwal ini?",
            style: GoogleFonts.poppins(fontSize: 12)),
        actions: [
          TextButton(
              onPressed: () => Navigator.pop(context),
              child: const Text("Batal", style: TextStyle(fontSize: 12))),

          // Button Hapus di Dialog juga disesuaikan
          OutlinedButton(
            style: OutlinedButton.styleFrom(
              side: const BorderSide(color: Colors.redAccent),
              shape: const StadiumBorder(),
            ),
            onPressed: () {
              Navigator.pop(context);
              hapusJadwal(id);
            },
            child: const Text("Hapus",
                style: TextStyle(
                    color: Colors.redAccent,
                    fontSize: 12,
                    fontWeight: FontWeight.bold)),
          )
        ],
      ),
    );
  }

  Widget rowData(String label, String value) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 2),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          SizedBox(
            width: 70,
            child: Text(label,
                style: GoogleFonts.poppins(
                    fontSize: 12, fontWeight: FontWeight.w600)),
          ),
          Text(" : ", style: GoogleFonts.poppins(fontSize: 12)),
          Expanded(
            child: Text(value,
                style: GoogleFonts.poppins(fontSize: 12), softWrap: true),
          )
        ],
      ),
    );
  }

  Widget cardJadwal(Map<String, dynamic> item) {
    return Center(
      child: Container(
        margin: const EdgeInsets.symmetric(horizontal: 25, vertical: 8),
        padding: const EdgeInsets.all(12),
        decoration: BoxDecoration(
          color: Colors.white,
          borderRadius: BorderRadius.circular(12),
          border: Border.all(color: Colors.grey.shade300),
          boxShadow: [
            BoxShadow(
                color: Colors.black.withOpacity(0.03),
                blurRadius: 5,
                offset: const Offset(0, 2)),
          ],
        ),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              children: [
                const Icon(Icons.event_note,
                    size: 16, color: Colors.blueAccent),
                const SizedBox(width: 6),
                Text("Data Jadwal Posyandu",
                    style: GoogleFonts.poppins(
                        fontWeight: FontWeight.bold, fontSize: 13)),
              ],
            ),
            const Divider(height: 16, thickness: 1),
            rowData("Tanggal", formatTanggal(item['tanggal'] ?? "-")),
            rowData("Jam", "${item['jam_mulai']} - ${item['jam_selesai']}"),
            rowData("Lokasi", item['lokasi'] ?? "-"),
            rowData("Dusun", item['dusun'] ?? "-"),
            rowData("Kader", item['kader'] ?? "-"),
            rowData("Ket", item['keterangan'] ?? "-"),
            const SizedBox(height: 8),
            Align(
              alignment: Alignment.centerRight,
              child: SizedBox(
                height: 32, // Sedikit disesuaikan untuk Outlined Style

                // MENGUBAH GAYA BUTTON HAPUS DI SINI
                child: OutlinedButton.icon(
                  onPressed: () => konfirmasiHapus(item['id'].toString()),
                  icon: const Icon(Icons.delete_outline,
                      size: 14, color: Colors.redAccent),
                  label: Text("Hapus",
                      style: GoogleFonts.poppins(
                          color: Colors.redAccent,
                          fontSize: 10,
                          fontWeight: FontWeight.bold)),
                  style: OutlinedButton.styleFrom(
                    side: const BorderSide(color: Colors.redAccent),
                    padding: const EdgeInsets.symmetric(horizontal: 12),
                    shape: const StadiumBorder(), // Membuat bentuk lonjong
                  ),
                ),
              ),
            )
          ],
        ),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    final totalPages =
        dataFilter.isEmpty ? 1 : (dataFilter.length / _rowsPerPage).ceil();

    return Scaffold(
      backgroundColor: const Color(0xFFFDFDFD),
      appBar: AppBar(
        backgroundColor: Colors.blueAccent,
        elevation: 0,
        leading: IconButton(
          icon: const Icon(Icons.arrow_back, color: Colors.white),
          onPressed: () => Navigator.pop(context),
        ),
        title: null,
      ),
      body: Column(
        children: [
          Padding(
            padding: const EdgeInsets.only(top: 20, bottom: 12),
            child: Center(
              child: Text(
                "Riwayat Jadwal Posyandu",
                style: GoogleFonts.poppins(
                  fontSize: 18,
                  fontWeight: FontWeight.bold,
                  color: Colors.black,
                ),
              ),
            ),
          ),
          Padding(
            padding: const EdgeInsets.symmetric(horizontal: 20),
            child: TextField(
              controller: searchController,
              onChanged: searchData,
              style: GoogleFonts.poppins(fontSize: 12),
              decoration: InputDecoration(
                hintText: "Cari berdasarkan tanggal, lokasi, a...",
                hintStyle:
                    GoogleFonts.poppins(fontSize: 12, color: Colors.grey),
                prefixIcon:
                    const Icon(Icons.search, size: 20, color: Colors.grey),
                contentPadding: const EdgeInsets.symmetric(vertical: 10),
                border: OutlineInputBorder(
                  borderRadius: BorderRadius.circular(10),
                  borderSide: const BorderSide(color: Colors.grey),
                ),
                enabledBorder: OutlineInputBorder(
                  borderRadius: BorderRadius.circular(10),
                  borderSide: const BorderSide(color: Colors.grey),
                ),
              ),
            ),
          ),
          const SizedBox(height: 15),
          Expanded(
            child: isLoading
                ? const Center(child: CircularProgressIndicator())
                : dataFilter.isEmpty
                    ? Center(
                        child: Text("Data tidak ditemukan",
                            style: GoogleFonts.poppins(fontSize: 12)))
                    : ListView.builder(
                        itemCount: _paginatedData.length,
                        itemBuilder: (context, index) {
                          return cardJadwal(_paginatedData[index]);
                        },
                      ),
          ),
          Container(
            padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 8),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                Text(
                  "Halaman ${_currentPage + 1} dari $totalPages",
                  style: GoogleFonts.poppins(fontSize: 12, color: Colors.black),
                ),
                Row(
                  children: [
                    IconButton(
                      iconSize: 20,
                      icon: const Icon(Icons.chevron_left),
                      onPressed: _currentPage == 0
                          ? null
                          : () => setState(() => _currentPage--),
                    ),
                    IconButton(
                      iconSize: 20,
                      icon: const Icon(Icons.chevron_right),
                      onPressed: _currentPage >= totalPages - 1
                          ? null
                          : () => setState(() => _currentPage++),
                    ),
                  ],
                )
              ],
            ),
          )
        ],
      ),
    );
  }
}