<?php

namespace App\Endpoint\Api\Http\Controllers\Auth;

use Throwable;
use App\Helpers\PhoneNumber;
use App\Enums\SocialiteType;
use Illuminate\Http\Request;
use App\Exceptions\BizException;
use Illuminate\Support\Facades\DB;
use App\Models\{User, SocialiteUser};
use App\Endpoint\Api\Http\Controllers\Controller;
use EasyWeChat\Factory;

class MiniprogramController extends Controller
{
    public function login(Request $request)
    {
        $request->validate([
            'code' => 'required'
        ], [
            'code.required' => '授权码必填'
        ]);

        $app = $this->getWechatApp();

        $result = $app->auth->session($request->input('code'));

        if (data_get($result, 'errcode')) {
            throw new BizException(data_get($result, 'errmsg'));
        }

        $openid = data_get($result, 'openid');
        $type = SocialiteType::WechatMiniProgram->value;
        if (!$openid) {
            throw new BizException('授权失败, 未找到 openid');
        }

        try {
            DB::beginTransaction();

            $user_social = SocialiteUser::firstOrCreate(['socialite_id' => $openid, 'socialite_type' => $type]);
            $user = $user_social->user;
            $token = '';
            if ($user) {
                $token = $user->createToken($type)->plainTextToken;
            }

            DB::commit();

            return response()->json([
                'openid' => $openid,
                'token' => $token
            ]);
        } catch (Throwable $e) {
            DB::rollBack();

            report($e);

            throw new BizException($e->getMessage());
        }

    }

    public function bindPhone(Request $request)
    {
        $request->validate([
            'code' => 'required'
        ], [
            'code.required' => '授权码必填'
        ]);

        $app = $this->getWechatApp();

        $result = $app->phone_number->getUserPhoneNumber($request->input('code'));

        if (data_get($result, 'errcode')) {
            throw new BizException(data_get($result, 'errmsg'));
        }

        $phone = data_get($result, 'phone_info.purePhoneNumber');
        $openid = $request->input('openid');

        try {
            DB::beginTransaction();
            $user = User::where('phone', $phone)->first();
            if (!$user) {
                $time = now();
                $ip = $request->realIp();
                $inviter = $this->findUserByCode($request->input('invite_code', ''));
                $user = User::create([
                    'phone' => $phone,
                    'register_ip' => $ip,
                    'last_login_at' => $time,
                    'last_login_ip' => $ip,
                ], $inviter);
            }
            if ($openid) {
                SocialiteUser::updateOrCreate(
                    ['socialite_id' => $openid, 'socialite_type' => SocialiteType::WechatMiniProgram->value],
                    ['user_id' => $user->id]
                );
            }

            $token = $user->createToken(SocialiteType::WechatMiniProgram->value);

            DB::commit();

            return response()->json([
                'token' => $token->plainTextToken
            ]);
        } catch (Throwable $e) {
            DB::rollBack();

            report($e);

            throw new BizException($e->getMessage());
        }
    }

    /**
     * 通过邀请码搜索用户
     *
     * @param string $code
     * @return \App\Models\User|null
     *
     * @throws \App\Exceptions\BizException
     */
    protected function findUserByCode($code): ?User
    {
        if (!$code) {
            return null;
        }

        $user = User::when(PhoneNumber::validate($code), function ($query) use ($code) {
            $query->where('phone', $code);
        }, function ($query) use ($code) {
            $query->whereRelation('userInfo', 'code', $code);
        })->first();

        if ($user === null) {
            throw new BizException(__('Inviter does not exist'));
        }

        return $user;
    }

    protected function getWechatApp($getway = 'default')
    {
        return Factory::miniProgram(config('wechat.mini_program.' . $getway));
    }
}