<?php

namespace App\Http\Controllers;

use App\Models\ActivityLog;
use App\Models\PermohonanTransfer;
use App\Models\RumahIbadah;
use Illuminate\Http\Request;

class TransferController extends Controller
{
    public function index(Request $request)
    {
        $user  = auth()->user();
        $query = PermohonanTransfer::with([
            'dariIbadah:id,nama', 'keIbadah:id,nama',
            'rumahMiskin:id_rumah,nama_kk', 'pengaju:id,name',
        ])->orderByDesc('created_at');

        if ($user->hasRole('pengurus_ibadah')) {
            $ibadahIds = RumahIbadah::where('user_id', $user->id)->pluck('id');
            $query->where(function ($q) use ($ibadahIds) {
                $q->whereIn('dari_ibadah_id', $ibadahIds)
                  ->orWhereIn('ke_ibadah_id', $ibadahIds);
            });
        }

        return response()->json($query->limit(100)->get()->map(fn($p) => [
            'id'              => $p->id,
            'dari_ibadah'     => $p->dariIbadah?->nama,
            'ke_ibadah'       => $p->keIbadah?->nama,
            'ke_ibadah_id'    => $p->ke_ibadah_id,
            'id_rumah'        => $p->id_rumah,
            'nama_kk'         => $p->rumahMiskin?->nama_kk,
            'alasan'          => $p->alasan,
            'status'          => $p->status,
            'catatan_respons' => $p->catatan_respons,
            'diajukan_oleh'   => $p->pengaju?->name,
            'created_at'      => $p->created_at?->format('d/m/Y H:i'),
        ]));
    }

    public function store(Request $request)
    {
        $validated = $request->validate([
            'dari_ibadah_id' => 'required|integer|exists:rumah_ibadah,id',
            'ke_ibadah_id'   => 'required|integer|exists:rumah_ibadah,id|different:dari_ibadah_id',
            'id_rumah'       => 'required|string|exists:rumah_miskin,id_rumah',
            'alasan'         => 'required|string|max:1000',
        ]);
        // Pengurus hanya boleh mengajukan dari ibadah yang mereka kelola
        $user = auth()->user();
        if (!$user->hasRole('administrator')) {
            $ownedIds = RumahIbadah::where('user_id', $user->id)->pluck('id');
            if (!$ownedIds->contains((int) $validated['dari_ibadah_id'])) {
                return response()->json(['message' => 'Tidak berhak mengajukan transfer dari ibadah ini'], 403);
            }
        }

        $permohonan = PermohonanTransfer::create([
            ...$validated,
            'diajukan_oleh' => auth()->id(),
            'status'        => 'pending',
        ]);
        ActivityLog::record('create', "Ajukan transfer: {$permohonan->id_rumah} → ibadah #{$permohonan->ke_ibadah_id}", 'transfer', $permohonan->id);
        return response()->json(['success' => true, 'data' => $permohonan]);
    }

    public function respond(Request $request, int $id)
    {
        $permohonan = PermohonanTransfer::findOrFail($id);
        if ($permohonan->status !== 'pending') {
            return response()->json(['message' => 'Permohonan sudah diproses'], 422);
        }

        $validated = $request->validate([
            'status'          => 'required|in:disetujui,ditolak',
            'catatan_respons' => 'nullable|string|max:500',
        ]);

        $user = auth()->user();
        if (!$user->hasRole('administrator')) {
            $ibadahIds = RumahIbadah::where('user_id', $user->id)->pluck('id');
            if (!$ibadahIds->contains($permohonan->ke_ibadah_id)) {
                return response()->json(['message' => 'Tidak berhak memproses'], 403);
            }
        }

        $permohonan->update([...$validated, 'diproses_oleh' => $user->id]);

        $label = $validated['status'] === 'disetujui' ? 'disetujui' : 'ditolak';
        ActivityLog::record('update', "Transfer {$label}: permohonan #{$id}", 'transfer', $id);
        return response()->json(['success' => true]);
    }
}