<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;

use App\Models\HistoriSiswa;
use App\Models\Logbooks;
use App\Models\Siswa;
use App\Models\Programs;
use Carbon\Carbon;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;

use App\Models\Guru;
use App\Models\Ruangan;
use App\Models\Kelas;
use App\Models\Sesi;
use App\Models\JadwalKelas;

class DashboardController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function insertHistori(){
        $data = Siswa::all();
        $successCount = 0;
        $failedEntries = [];

        for ($i = 0; $i < count($data); $i++) {
            try {
                $result = HistoriSiswa::create([
                    'siswa_id' => $data[$i]->id,
                    'status' => $data[$i]->status,
                ]);

                if ($result) {
                    $successCount++;
                } else {
                    $failedEntries[] = [
                        'siswa_id' => $data[$i]->id,
                        'reason' => 'Create method returned false'
                    ];
                }
            } catch (\Exception $e) {
                $failedEntries[] = [
                    'siswa_id' => $data[$i]->id,
                    'reason' => $e->getMessage()
                ];
            }
        }

        $totalRecords = count($data);
        $failedCount = count($failedEntries);

        if ($failedCount > 0) {
            // Log atau tampilkan error

            // Opsional: kembalikan informasi kegagalan jika diperlukan
            return [
                'status' => 'partial',
                'message' => "{$successCount} data berhasil disimpan, {$failedCount} data gagal",
                'success_count' => $successCount,
                'failed_count' => $failedCount,
                'failed_entries' => $failedEntries
            ];
        } else {
            // Semua berhasil
            return [
                'status' => 'success',
                'message' => "Semua {$totalRecords} data berhasil disimpan"
            ];
        }

    }
    public function index()
    {
        $data = Siswa::with('Programs')->get();
        $programs = Programs::all();
        $programsCount = $programs->count();
        $groupPrograms = DB::table('programs')
            ->leftJoin('siswa', 'programs.id', '=', 'siswa.program_id')
            ->selectRaw('programs.level, programs.kelas, COUNT(siswa.id) AS jumlah_peserta_program, (SELECT COUNT(*) FROM siswa) AS total_peserta')
            ->groupBy('programs.id', 'programs.level', 'programs.kelas')
            ->get();

        $totalGuru = Guru::count();
        $totalRuangan = Ruangan::count();
        $totalKelas = Kelas::count();
        $totalSesi = Sesi::count();
        $totalJadwal = JadwalKelas::count();
        $totalSiswaAktif = $data->whereIn('status', ['Aktif 24 Sesi', 'Aktif 12 Sesi', 'Aktif Ekstra'])->count();

        $gaResult = session('ga_log_result');

        return view('admin.pages.dashboard', compact(
            'data',
            'groupPrograms',
            'programsCount',
            'totalGuru',
            'totalRuangan',
            'totalKelas',
            'totalSesi',
            'totalJadwal',
            'totalSiswaAktif',
            'gaResult'
        ));
    }

    public function dashboardData(){
        Carbon::setLocale('id');

        $now = Carbon::now();
        $tanggalMulai = $now->copy()->subMonths(5)->startOfMonth();
        $tanggalAkhir = $now->copy()->endOfMonth();

        // --- Data reguler per bulan ---
        $siswaPerBulanReguler = HistoriSiswa::whereBetween('created_at', [$tanggalMulai, $tanggalAkhir])
            ->where(function($q) {
                $q->where('status', 'Aktif 24 Sesi')
                    ->orWhere('status', 'Aktif 12 Sesi');
            })
            ->selectRaw("DATE_FORMAT(created_at, '%Y-%m') as bulan_id, COUNT(id) as jumlah_siswa")
            ->groupBy('bulan_id')
            ->pluck('jumlah_siswa', 'bulan_id'); // hasil key => value

        // --- Data ekstra per bulan ---
        $siswaPerBulanEkstra = HistoriSiswa::whereBetween('created_at', [$tanggalMulai, $tanggalAkhir])
            ->where('status', 'Aktif Ekstra')
            ->selectRaw("DATE_FORMAT(created_at, '%Y-%m') as bulan_id, COUNT(id) as jumlah_siswa")
            ->groupBy('bulan_id')
            ->pluck('jumlah_siswa', 'bulan_id');

        // --- Siapkan array per bulan (6 bulan terakhir) ---
        $dataLengkap = [];
        $dataLengkapReguler = [];
        $dataLengkapEkstra = [];

        for ($i = 0; $i < 6; $i++) {
            $bulan = $now->copy()->subMonths(5 - $i);
            $bulanId = $bulan->format('Y-m');
            $bulanTampil = $bulan->translatedFormat('M Y');

            $jumlahReguler = $siswaPerBulanReguler[$bulanId] ?? 0;
            $jumlahEkstra  = $siswaPerBulanEkstra[$bulanId] ?? 0;

            $dataLengkap[] = [
                'bulan' => $bulanTampil,
                'jumlah_siswa' => $jumlahReguler + $jumlahEkstra,
            ];

            $dataLengkapReguler[] = [
                'bulan' => $bulanTampil,
                'jumlah_siswa' => $jumlahReguler,
            ];

            $dataLengkapEkstra[] = [
                'bulan' => $bulanTampil,
                'jumlah_siswa' => $jumlahEkstra,
            ];
        }

        // --- Total siswa (berdasarkan status terakhir di tabel Siswa) ---
        $data = Siswa::get();
        $total_siswa_reguler = $data->where('status', 'Aktif 24 Sesi')->count()
            + $data->where('status', 'Aktif 12 Sesi')->count();
        $total_siswa_ekstra  = $data->where('status', 'Aktif Ekstra')->count();
        $total_siswa_aktif   = $total_siswa_reguler + $total_siswa_ekstra;

        // --- Event dan sesi ---
        $total_sesi = Logbooks::count();
        $total_kelas = Kelas::count();
        $total_guru = Guru::count();
        $total_ruangan = Ruangan::count();

        // --- Data Notifikasi GA Terakhir ---
        $gaResult = session('ga_log_result');
        $gaDataFormatted = null;
        if ($gaResult) {
            $gaDataFormatted = [
                'semester' => $gaResult['semester'] ?? 'Genap',
                'tahunAjaran' => $gaResult['tahunAjaran'] ?? '2025/2026',
                'executionTime' => $gaResult['executionTime'] ?? '0.00',
                'generations' => $gaResult['generations'] ?? 0,
                'fitness' => isset($gaResult['bestChromosome']) ? number_format($gaResult['bestChromosome']->fitness, 4) : '1.0000',
                'isOptimal' => $gaResult['isOptimal'] ?? true,
            ];
        }

        // --- Kelas hari ini ---
        $jharini = Logbooks::whereDate('tanggal', Carbon::today())->count();
        $jcompleted = Logbooks::whereDate('tanggal', Carbon::today())
            ->whereIn('status', ['completed', 'libur'])
            ->count();

        // --- Izin Pending ---
        $izinpending = [];

        return response()->json([
            'total_siswa' => $total_siswa_reguler,
            'total_siswa_ekstra' => $total_siswa_ekstra,
            'total_siswa_aktif' => $total_siswa_aktif,
            'data_perbulan' => $dataLengkap,
            'data_perbulanreguler' => $dataLengkapReguler,
            'data_perbulanekstra' => $dataLengkapEkstra,
            'total_sesi' => $total_sesi,
            'total_kelas' => $total_kelas,
            'total_guru' => $total_guru,
            'total_ruangan' => $total_ruangan,
            'ga_result' => $gaDataFormatted,
            'jharini' => $jharini,
            'jcompleted' => $jcompleted,
            'izinpending' => $izinpending,
        ]);
    }

    public function dashboardChartData(Request $request)
    {
        Carbon::setLocale('id');

        $monthCount = min((int) $request->get('months', 5), 24);
        if ($monthCount < 1) $monthCount = 1;

        $now = Carbon::now();
        $tanggalMulai = $now->copy()->subMonths($monthCount - 1)->startOfMonth();
        $tanggalAkhir = $now->copy()->endOfMonth();

        // --- Data reguler per bulan ---
        $siswaPerBulanReguler = HistoriSiswa::whereBetween('created_at', [$tanggalMulai, $tanggalAkhir])
            ->where(function($q) {
                $q->where('status', 'Aktif 24 Sesi')
                    ->orWhere('status', 'Aktif 12 Sesi');
            })
            ->selectRaw("DATE_FORMAT(created_at, '%Y-%m') as bulan_id, COUNT(id) as jumlah_siswa")
            ->groupBy('bulan_id')
            ->pluck('jumlah_siswa', 'bulan_id');

        // --- Data ekstra per bulan ---
        $siswaPerBulanEkstra = HistoriSiswa::whereBetween('created_at', [$tanggalMulai, $tanggalAkhir])
            ->where('status', 'Aktif Ekstra')
            ->selectRaw("DATE_FORMAT(created_at, '%Y-%m') as bulan_id, COUNT(id) as jumlah_siswa")
            ->groupBy('bulan_id')
            ->pluck('jumlah_siswa', 'bulan_id');

        $labels = [];
        $dataTotal = [];
        $dataReguler = [];
        $dataEkstra = [];

        for ($i = 0; $i < $monthCount; $i++) {
            $bulan = $now->copy()->subMonths(($monthCount - 1) - $i);
            $bulanId = $bulan->format('Y-m');

            $jumlahReguler = $siswaPerBulanReguler[$bulanId] ?? 0;
            $jumlahEkstra  = $siswaPerBulanEkstra[$bulanId] ?? 0;

            $labels[]      = $bulan->translatedFormat('M Y');
            $dataTotal[]   = $jumlahReguler + $jumlahEkstra;
            $dataReguler[] = $jumlahReguler;
            $dataEkstra[]  = $jumlahEkstra;
        }

        return response()->json([
            'labels'       => $labels,
            'data_total'   => $dataTotal,
            'data_reguler' => $dataReguler,
            'data_ekstra'  => $dataEkstra,
        ]);
    }

}