<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Sekolah;
use App\Models\Siswa;
use App\Models\DetailKelas;
use Illuminate\Database\QueryException;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

class SekolahController extends Controller
{
    public function inputData(){
        DB::beginTransaction();

        try {
            $pesertas = Siswa::whereNull('sekolah_id')
                ->whereNotNull('asal_sekolah')
                ->get();

            foreach ($pesertas as $peserta) {
                $asal = trim($peserta->asal_sekolah);

                // Cek apakah sekolah sudah ada
                $sekolah = Sekolah::where('nama_sekolah', $asal)->first();

                if (!$sekolah) {
                    // Kalau belum ada, buat baru
                    $sekolah = Sekolah::create([
                        'nama_sekolah' => $asal,
                        'status_kerja_sama' => 'Tidak Ada',
                    ]);
                }

                // Update peserta dengan sekolah_id
                $peserta->update([
                    'sekolah_id' => $sekolah->id
                ]);
            }

            DB::commit();
            return response()->json(['message' => 'Data sekolah berhasil dihubungkan dengan peserta.']);
        } catch (\Exception $e) {
            DB::rollBack();
            return response()->json(['error' => $e->getMessage()], 500);
        }
    }

    public function index()
    {
        $data = Sekolah::withCount(['siswa as total_siswa'])
            ->where('id', '!=', 0)
            ->get()
            ->map(function ($item) {
                $siswaIds = Siswa::where('sekolah_id', $item->id)->pluck('id');

                // Hitung jumlah siswa yang ikut kelas
                $siswaKelas = DetailKelas::whereIn('siswa_id', $siswaIds)
                    ->distinct('siswa_id')
                    ->count('siswa_id');

                $item->siswa_kelas = $siswaKelas;
                return $item;
            })
            ->sortByDesc('total_siswa')
            ->values();

        return view('admin.pages.sekolah', compact('data'));
    }

    public function getDataSekolahCount(){
        $data = Sekolah::all();

        return response()->json([
                'Semua' => $data->count(),
                'Aktif' => $data->where('status_kerja_sama', 'Aktif')->count(),
                'Dalam Pengajuan' => $data->where('status_kerja_sama', 'Dalam Pengajuan')->count(),
                'Tidak Ada' => $data->where('status_kerja_sama', 'Tidak Ada')->count(),
                'Berakhir' => $data->where('status_kerja_sama', 'Berakhir')->count(),
                'Tidak Tertarik' => $data->where('status_kerja_sama', 'Tidak Tertarik')->count(),
            ]
        );
    }

    public function getDataSekolah($sekolah_id){
        $sekolah = Sekolah::withCount(['siswa as total_siswa'])
            ->where('id', '!=', 0)
            ->get()
            ->map(function ($item) {
                $siswaIds = Siswa::where('sekolah_id', $item->id)->pluck('id');

                $siswaKelas = DetailKelas::whereIn('siswa_id', $siswaIds)
                    ->distinct('siswa_id')
                    ->count('siswa_id');

                $item->siswa_kelas = $siswaKelas;

                return $item;
            })
            ->where('id', '!=', $sekolah_id)
            ->sortByDesc('total_siswa')
            ->values();

        return response()->json([$sekolah]);
    }

    public function pindahSekolah(Request $request)
    {
        $request->validate([
            'siswa_ids' => 'required|array',
            'sekolah_id' => 'required|integer|exists:sekolah,id',
        ]);

        Siswa::whereIn('id', $request->siswa_ids)
            ->update(['sekolah_id' => $request->sekolah_id]);

        return response()->json(['success' => true]);
    }

    public function create(){
        return view('admin.pages.create-sekolah');
    }

    public function store(Request $request){
        $validated = $request->validate(
            [
                'nama_sekolah' => 'required',
                'jenis_lembaga' => 'required',
                'email' => 'nullable',
                'alamat_sekolah' => 'nullable',
                'provinsi' => 'nullable',
                'kota' => 'nullable',
                'status_kerja_sama' => 'nullable',
            ],
            [
                'nama_sekolah.required' => 'Nama sekolah wajib diisi',
                'jenis_lembaga.required' => 'jenis lembaga wajib dipilih',
            ]
        );
        if ($request->no_telp !== null || $request->no_telp !== ''){
            $str = ltrim($request->no_telp, '0');
            $validated['no_telp'] = $str;
        }

        if ($request->hasFile('logo')) {
            $file = $request->file('logo');
            $hashedName = md5(time() . $file->getClientOriginalName()) . '.' . $file->getClientOriginalExtension();
            $file->storeAs('sekolah', $hashedName, 'public');
            $validated['logo'] = 'sekolah/' . $hashedName;
        }

        $validated['latitude'] = 0;
        $validated['longitude'] = 0;

        try {
            Sekolah::create($validated);
            return redirect('/admin/sekolah')->with('success', 'Data Berhasil Disimpan');
        }catch (QueryException $e){
            return redirect('/admin/sekolah')->with('error', 'Data Gagal Disimpan');
        }
    }

    public function edit($id){
        $data = Sekolah::findOrFail($id);

        $siswa = Siswa::where('sekolah_id', $id)->get();

        $siswaIds = $siswa->pluck('id');

        $kelasResume = DB::table('detail_kelas')
            ->join('kelas', 'detail_kelas.kelas_id', '=', 'kelas.id')
            ->whereIn('detail_kelas.siswa_id', $siswaIds)
            ->select(
                'kelas.id',
                'kelas.nama_kelas',
                DB::raw('COUNT(DISTINCT detail_kelas.siswa_id) as total_siswa')
            )
            ->groupBy('kelas.id', 'kelas.nama_kelas')
            ->orderByDesc('total_siswa')
            ->get();

        return view('admin.pages.edit-sekolah', compact('data', 'siswa', 'kelasResume'));
    }

    public function update(Request $request, $id){
        $data = Sekolah::findOrFail($id);
        $validated = $request->validate(
            [
                'nama_sekolah' => 'required',
                'jenis_lembaga' => 'required',
                'email' => 'nullable',
                'alamat_sekolah' => 'nullable',
                'provinsi' => 'nullable',
                'kota' => 'nullable',
                'status_kerja_sama' => 'nullable',
            ],
            [
                'nama_sekolah.required' => 'Nama sekolah wajib diisi',
                'jenis_lembaga.required' => 'jenis lembaga wajib dipilih',
            ]
        );
        if ($request->no_telp !== null || $request->no_telp !== ''){
            $str = ltrim($request->no_telp, '0');
            $validated['no_telp'] = $str;
        }

        if ($request->hasFile('logo')) {
            if ($data->logo) {
                $imagePath = storage_path('app/public/' . $data->logo);
                if (file_exists($imagePath)) {
                    unlink($imagePath);
                }
            }

            $file = $request->file('logo');

            $hashedName = md5(time() . $file->getClientOriginalName()) . '.' . $file->getClientOriginalExtension();

            $file->storeAs('sekolah', $hashedName, 'public');

            $validated['logo'] = 'sekolah/' . $hashedName;
        }

        try {
            $data->update($validated);
            return redirect('/admin/sekolah')->with('success', 'Data Berhasil Diedit');
        }catch (QueryException $e){
            return redirect('/admin/sekolah')->with('error', 'Data Gagal Disimpan');
        }
    }

    public function destroy($id){
        $data = Sekolah::findOrFail($id);
        if ($data->logo) {
            $imagePath = storage_path('app/public/' . $data->logo);
            if (file_exists($imagePath)) {
                unlink($imagePath);
            }
        }

        $data->delete();
        return redirect('/admin/sekolah')->with('success', 'Data Berhasil Dihapus');
    }
}