<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Models\AdminUser;
use App\Support\ApiResponse;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Hash;

class AdminUserController extends Controller
{
    use ApiResponse;

    public function index(Request $request): JsonResponse
    {
        $query = AdminUser::query()->with('roles');

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

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

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

        $paginator->getCollection()->transform(function (AdminUser $u) {
            return [
                'id' => $u->id,
                'username' => $u->username,
                'real_name' => $u->real_name,
                'mobile' => $u->mobile,
                'email' => $u->email,
                'status' => (int) $u->status,
                'last_login_at' => $u->last_login_at?->toIso8601String(),
                'last_login_ip' => $u->last_login_ip,
                'roles' => $u->roles->map(fn ($r) => ['id' => $r->id, 'name' => $r->name, 'code' => $r->code]),
                'created_at' => $u->created_at?->toIso8601String(),
            ];
        });

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

    public function store(Request $request): JsonResponse
    {
        $data = $request->validate([
            'username' => ['required', 'string', 'max:64', 'unique:admin_users,username'],
            'password' => ['required', 'string', 'min:6', 'max:255'],
            'real_name' => ['nullable', 'string', 'max:64'],
            'mobile' => ['nullable', 'string', 'max:20'],
            'email' => ['nullable', 'email', 'max:128'],
            'status' => ['required', 'integer', 'in:0,1'],
            'role_ids' => ['nullable', 'array'],
            'role_ids.*' => ['integer', 'exists:roles,id'],
        ]);

        $admin = AdminUser::query()->create([
            'username' => $data['username'],
            'password_hash' => Hash::make($data['password']),
            'real_name' => $data['real_name'] ?? null,
            'mobile' => $data['mobile'] ?? null,
            'email' => $data['email'] ?? null,
            'status' => (int) $data['status'],
        ]);

        if (! empty($data['role_ids'])) {
            $admin->roles()->sync($data['role_ids']);
        }

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

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

        $data = $request->validate([
            'real_name' => ['nullable', 'string', 'max:64'],
            'mobile' => ['nullable', 'string', 'max:20'],
            'email' => ['nullable', 'email', 'max:128'],
            'status' => ['sometimes', 'integer', 'in:0,1'],
            'role_ids' => ['nullable', 'array'],
            'role_ids.*' => ['integer', 'exists:roles,id'],
        ]);

        $model->fill([
            'real_name' => $data['real_name'] ?? $model->real_name,
            'mobile' => array_key_exists('mobile', $data) ? $data['mobile'] : $model->mobile,
            'email' => array_key_exists('email', $data) ? $data['email'] : $model->email,
            'status' => isset($data['status']) ? (int) $data['status'] : $model->status,
        ]);
        $model->save();

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

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

    public function resetPassword(Request $request, int $adminUser): JsonResponse
    {
        $data = $request->validate([
            'password' => ['required', 'string', 'min:6', 'max:255'],
        ]);

        $model = AdminUser::query()->findOrFail($adminUser);
        $model->forceFill([
            'password_hash' => Hash::make($data['password']),
        ])->save();

        return $this->ok(null, '密码已重置');
    }

    public function destroy(Request $request, int $adminUser): JsonResponse
    {
        $model = AdminUser::query()->findOrFail($adminUser);

        if ($model->id === $request->user()->id) {
            return $this->fail('不能删除当前登录账号', 422);
        }

        $model->delete();

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