<?php

namespace App\Http\Controllers;

use App\Http\Requests\UserRegisterRequest;
use App\Models\UserModel;
use App\Services\Wechat\MiniProgramService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Modules\AnnoRoute\Attribute\GetRoute;
use Modules\AnnoRoute\Attribute\PostRoute;
use Modules\AnnoRoute\Attribute\RequestAttribute;
use Modules\Common\Trait\RequestJson;

#[RequestAttribute('/api', authGuard: 'users')]
class IndexController
{
    use RequestJson;

    /** 获取首页信息 */
    #[GetRoute('/index', false)]
    public function index(): JsonResponse
    {
        $web_setting = site_config('web');

        return $this->success(compact('web_setting'));
    }

    /** 用户登录 */
    #[PostRoute('/login', false)]
    public function login(Request $request): JsonResponse
    {
        $credentials = $request->validate([
            'username' => 'required|min:4|alphaDash',
            'password' => 'required|min:4|alphaDash',
        ]);
        if (Auth::guard('users')->attempt($credentials, true)) {
            $data = $request->user('users')
                ->createToken($credentials['username'])
                ->toArray();
            return $this->success($data, __('user.login_success'));
        }
        return $this->error(__('user.login_error'));
    }

    /** 用户注册 */
    #[PostRoute('/register', false)]
    public function register(UserRegisterRequest $request): JsonResponse
    {
        $data = $request->validated();
        $model = new UserModel;
        $model->username = $data['username'];
        $model->password = password_hash($data['password'], PASSWORD_DEFAULT);
        $model->email = $data['email'];
        if ($model->save()) {
            return $this->success();
        }

        return $this->error('创建用户失败');
    }

    /**
     * 小程序登录
     *
     * 仅需 code 完成 openid 换取，首次登录使用默认昵称和头像，
     * 用户信息后续通过编辑接口完善。
     */
    #[PostRoute('/wx/login', false)]
    public function loginMiniProgram(Request $request, MiniProgramService $miniProgram): JsonResponse
    {
        $validated = $request->validate([
            'code'      => 'required|string',
            'phoneCode' => 'nullable|string',
        ]);

        // 1. 通过 code 换取 openid、session_key、unionid
        $session = $miniProgram->codeToSession($validated['code']);

        // 2. 构建用户数据，昵称/头像/性别使用默认值
        $userData = [
            'openid'   => $session['openid'],
            'unionid'  => $session['unionid'] ?? '',
            'username' => 'wx_'.uniqid(),
            'nickname' => '微信用户',
            'avatar'   => '',
            'gender'   => 0,
            'password' => '',
        ];

        // 3. 解密手机号
        if (! empty($validated['phoneCode'])) {
            try {
                $phoneInfo = $miniProgram->getPhoneNumber($validated['phoneCode']);
                $userData['mobile'] = $phoneInfo['phone_info']['purePhoneNumber'] ?? '';
            } catch (\Throwable) {
                // 手机号解密失败不阻塞登录
            }
        }

        // 4. 查找或创建用户
        $user = UserModel::firstOrCreate(
            ['openid' => $userData['openid']],
            $userData
        );

        // 5. 更新已有用户缺失的手机号和 unionid
        $needUpdate = false;
        foreach (['mobile', 'unionid'] as $field) {
            if (! empty($userData[$field]) && empty($user->$field)) {
                $user->$field = $userData[$field];
                $needUpdate = true;
            }
        }
        if ($needUpdate) {
            $user->save();
        }

        // 6. 创建 Sanctum token
        $token = $user->createToken($user->username)->toArray();

        return $this->success([
            'token' => $token['plainTextToken'],
            'user'  => $user->toArray(),
        ], __('user.login_success'));
    }
}