<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Gate;
use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
use Illuminate\Validation\Rules\Enum;

use App\Models\Pertanian\Lahan;
use App\Http\Resources\Pertanian\LahanResource;
use App\Enums\StatusLahan;

class LahanController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index(Request $request): AnonymousResourceCollection
    {
        Gate::authorize('petani');

        $user = Auth::user();
        $profile = $user->profile;

        $size = $request->integer('size') ?: 10;

        $listLahan = Lahan::where('profile_id', $profile->id)
            ->when($request->search, function ($q, $search) {
                $search = strtolower($search);
                $q->whereRaw('lower(nama) like ?', ["%{$search}%"]);
            })
            ->when($request->status_kepemilikan, fn($q,$v) => $q->where('status_kepemilikan',$v))
            ->when($request->desa_kelurahan_id, fn($q,$v) => $q->where('desa_kelurahan_id',$v))
            ->when($request->kecamatan_id, fn ($q, $v) =>
                $q->whereHas('desaKelurahan', fn ($k) =>
                    $k->where('kecamatan_id', $v)
                )
            )
            ->when($request->kabupaten_kota_id, fn ($q, $v) =>
                $q->whereHas('desaKelurahan.kecamatan', fn ($k) =>
                    $k->where('kabupaten_kota_id', $v)
                )
            )
            ->when($request->provinsi_id, fn ($q, $v) =>
                $q->whereHas('desaKelurahan.kecamatan.kabupatenkota', fn ($k) =>
                    $k->where('provinsi_id', $v)
                )
            );
        if ($request->filled('sort')) {
            $dir = str_starts_with($request->sort, '-') ? 'desc' : 'asc';
            $column = ltrim($request->sort, '-');

            $allowed = ['id', 'nama'];

            if (in_array($column, $allowed)) {
                $listLahan->orderBy($column, $dir);
            }
        } else {
            $listLahan->orderBy('nama', 'asc');
        }

        $listLahan = $listLahan->paginate($size);


        return LahanResource::collection($listLahan);
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request): JsonResponse
    {
        Gate::authorize('petani');

        $user = Auth::user();
        $profile = $user->profile;

        $validated = $request->validate([
            'nama' => ['required', 'string', 'max:255'],
            'status_kepemilikan' => ['required', new Enum(StatusLahan::class)],
            'desa_kelurahan_id' => ['nullable', 'numeric', 'exists:master_desa_kelurahan,id'],
            'path' => ['nullable', 'array'],
            'path.*' => ['array'],
            'luas_lahan' => ['nullable', 'numeric'],
        ]);

        $lahan = Lahan::create([
            ...$validated,
            'profile_id' => $profile->id,
        ]);

        return (new LahanResource($lahan))
            ->response()
            ->setStatusCode(201);
    }

    /**
     * Display the specified resource.
     */
    public function show(string $id): JsonResponse
    {
        Gate::authorize('petani');

        $lahan = Lahan::with('desaKelurahan')->findOrFail($id);
        if ($lahan->profile_id !== Auth::user()->profile->id) {
            return response()->json(['message' => 'Unauthorized'], 403);
        } 

        return (new LahanResource($lahan))->response();
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, string $id): JsonResponse
    {
        Gate::authorize('petani');

        $lahan = Lahan::findOrFail($id);
        if ($lahan->profile_id !== Auth::user()->profile->id) {
            return response()->json(['message' => 'Unauthorized'], 403);
        } 

        $validated = $request->validate([
            'nama' => ['required', 'string', 'max:255'],
            'status_kepemilikan' => ['required', new Enum(StatusLahan::class)],
            'desa_kelurahan_id' => ['nullable', 'numeric', 'exists:master_desa_kelurahan,id'],
            'path' => ['nullable', 'array'],
            'path.*' => ['array'],
            'luas_lahan' => ['nullable', 'numeric'],
        ]);

        $lahan->update($validated);

        return (new LahanResource($lahan))->response();
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(string $id): JsonResponse
    {
        Gate::authorize('petani');

        $lahan = Lahan::findOrFail($id);
        if ($lahan->profile_id !== Auth::user()->profile->id) {
            return response()->json(['message' => 'Unauthorized'], 403);
        } 

        $lahan->delete();

        return response()->json(null, 204);
    }

    public function batchUpsert(Request $request): JsonResponse
    {
        Gate::authorize('petani');
        $user = Auth::user();
        $profile = $user->profile;

        $validated = $request->validate([
            'lahans' => ['required', 'array'],
            'lahans.*.id' => ['numeric'],
            'lahans.*.nama' => ['required', 'string', 'max:255'],
            'lahans.*.status_kepemilikan' => ['required', 'numeric'],
            'lahans.*.desa_kelurahan_id' => ['numeric'],
            'lahans.*.path' => ['string'],
            'lahans.*.luas_lahan' => ['numeric'],
        ]);

        $lahans = [];
        foreach ($validated['lahans'] as $lahan) {
            $lahans[] = [
                'id' => $lahan['id'] ?? null,
                'nama' => $lahan['nama'],
                'status_kepemilikan' => $lahan['status_kepemilikan'],
                'profile_id' => $profile->id,
                'desa_kelurahan_id' => $lahan['desa_kelurahan_id'] ?? null,
                'path' => $lahan['path'] ?? null,
                'luas_lahan' => $lahan['luas_lahan'] ?? null,
            ];
        }

        Lahan::upsert($lahans, ['id'], ['nama', 'status_kepemilikan', 'profile_id', 'desa_kelurahan_id', 'path', 'luas_lahan']);

        return response()->json(null, 204);
    }
}