<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\Role;
use App\Support\ApiResponse;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class RoleController extends Controller
{
    use ApiResponse;

    public function index(Request $request): JsonResponse
    {
        $query = Role::query();

        if ($kw = $request->query('keyword')) {
            $query->where(function ($q) use ($kw) {
                $q->where('name', 'like', "%{$kw}%")
                    ->orWhere('code', 'like', "%{$kw}%");
            });
        }

        if ($request->filled('status')) {
            $query->where('status', (int) $request->query('status'));
        }

        $paginator = $query->orderBy('sort')->orderBy('id')->paginate((int) $request->query('page_size', 20))->withQueryString();

        $paginator->getCollection()->transform(function (Role $r) {
            return [
                'id' => $r->id,
                'code' => $r->code,
                'name' => $r->name,
                'remark' => $r->remark,
                'sort' => (int) $r->sort,
                'status' => (int) $r->status,
            ];
        });

        return $this->paginated($paginator);
    }

    public function store(Request $request): JsonResponse
    {
        $data = $request->validate([
            'code' => ['required', 'string', 'max:64', 'unique:roles,code'],
            'name' => ['required', 'string', 'max:64'],
            'remark' => ['nullable', 'string', 'max:255'],
            'sort' => ['nullable', 'integer'],
            'status' => ['required', 'integer', 'in:0,1'],
            'menu_ids' => ['nullable', 'array'],
            'menu_ids.*' => ['integer', 'exists:menus,id'],
        ]);

        $role = Role::query()->create([
            'code' => $data['code'],
            'name' => $data['name'],
            'remark' => $data['remark'] ?? null,
            'sort' => (int) ($data['sort'] ?? 0),
            'status' => (int) $data['status'],
        ]);

        $role->menus()->sync($data['menu_ids'] ?? []);

        return $this->ok(['id' => $role->id], '已创建');
    }

    public function update(Request $request, int $role): JsonResponse
    {
        $model = Role::query()->findOrFail($role);

        $data = $request->validate([
            'name' => ['sometimes', 'string', 'max:64'],
            'remark' => ['nullable', 'string', 'max:255'],
            'sort' => ['nullable', 'integer'],
            'status' => ['sometimes', 'integer', 'in:0,1'],
            'menu_ids' => ['nullable', 'array'],
            'menu_ids.*' => ['integer', 'exists:menus,id'],
        ]);

        $model->fill([
            'name' => $data['name'] ?? $model->name,
            'remark' => array_key_exists('remark', $data) ? $data['remark'] : $model->remark,
            'sort' => isset($data['sort']) ? (int) $data['sort'] : $model->sort,
            'status' => isset($data['status']) ? (int) $data['status'] : $model->status,
        ]);
        $model->save();

        if (array_key_exists('menu_ids', $data)) {
            $model->menus()->sync($data['menu_ids'] ?? []);
        }

        return $this->ok(null, '已保存');
    }

    public function show(int $role): JsonResponse
    {
        $model = Role::query()->with('menus')->findOrFail($role);

        return $this->ok([
            'id' => $model->id,
            'code' => $model->code,
            'name' => $model->name,
            'remark' => $model->remark,
            'sort' => (int) $model->sort,
            'status' => (int) $model->status,
            'menu_ids' => $model->menus->pluck('id')->values()->all(),
        ]);
    }

    public function destroy(int $role): JsonResponse
    {
        $model = Role::query()->findOrFail($role);

        if ($model->code === 'super_admin') {
            return $this->fail('预置超级管理员角色不可删除', 422);
        }

        $model->delete();

        return $this->ok(null, '已删除');
    }
}