<?php
declare(strict_types=1);

namespace App\Http\Logics\Auth;

use App\Exceptions\GeneralException;
use App\Models\User;
use App\Utils\Traits\Logger;
use Carbon\Carbon;
use Exception;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Redis;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Contracts\HttpClient\Exception\ExceptionInterface;
use Symfony\Contracts\HttpClient\Exception\HttpExceptionInterface;

class AuthLogic
{
    use Logger;

    /**
     * AuthLogic Construct
     */
    public function __construct()
    {
        $this->setChannel('genera');
    }

    /**
     * 小程序登录
     * @throws GeneralException
     */
    public function login(string $code): array
    {
        $session_info = $this->miniProgramLogin($code);
        $token_info = $this->userLogin($session_info['open_id'], $session_info['session_key']);

        Redis::setex($token_info['access_token'], 86400 * 7, json_encode($session_info, JSON_UNESCAPED_UNICODE));

        return $token_info;
    }

    /**
     * 用户登录
     * @param string $open_id
     * @param string $session_key
     * @return array
     */
    protected function userLogin(string $open_id, string $session_key): array
    {
        $user = User::firstOrCreate([
            'email' => $open_id
        ], [
            'name' => $open_id,
            'password' => bcrypt($open_id)
        ]);

        // 撤销之前正在使用的所有token
        $user->tokens()->delete();

        // 获取新token
        $expire_time = Carbon::now()->addDays(7);
        $token_str = $user->createToken(bcrypt($session_key), ['*'], $expire_time)->plainTextToken;
        [$id, $token] = explode('|', $token_str, 2);

        return [
            'access_token' => $token ?: '',
            'token_type' => 'Bearer',
        ];
    }

    /**
     * 小程序登录
     * @param string $code
     * @return array
     * @throws GeneralException
     */
    protected function miniProgramLogin(string $code): array
    {
        try {
            $mini = getWeChatMiniProgramApp();
            $response = $mini->getUtils()->codeToSession($code);

            return [
                'open_id' => $response['openid'],
                'session_key' => $response['session_key'],
                'union_id' => $response['unionid'] ?? ''
            ];

        } catch (HttpExceptionInterface|ExceptionInterface|Exception $e) {
            //service error
            $message = $e->getMessage() . ' in ' . $e->getFile() . ':' . $e->getLine();
            $this->error('授权登录接口报错', [$message]);
            throw new GeneralException('授权登录失败，请稍后再试！', Response::HTTP_BAD_REQUEST);
        }
    }

}