<?php

namespace App\Http\Controllers\Customer;

use App\Customer;
use Carbon\Carbon;
use EasyWeChat\Factory;
use Illuminate\Support\Facades\Auth;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Validator;
use Tymon\JWTAuth\Facades\JWTAuth;

class AuthController extends Controller
{

    public $guardName = "customer";
    public $appid;
    public $appsecret;
    public $authModel;

    public function __construct()
    {
        $this->appid = env("CUSTOMER_APPID");
        $this->appsecret = env("CUSTOMER_APPSECRET");
        $this->authModel = new Customer();
    }

    /**
     * Create a new AuthController instance.
     *
     * @return void
     */

    public function guard()
    {
        return auth()->guard($this->guardName);
    }

    public function guardName()
    {
        return $this->guardName;
    }

    /**
     * Get a JWT via given credentials.
     *
     * @return \Illuminate\Http\JsonResponse
     */

    /**
     * @OA\Post(
     *     path="/customer/login",
     *     tags={"用户端用户相关"},
     *     summary="V2-通过用户名和密码登录",
     *     description="预留接口，用户测试账号密码登录。实际场景使用code换取openid进行登录",
     *     @OA\Parameter(name="username", in="query", @OA\Schema(type="string"), required=true, description="用户名"),
     *     @OA\Parameter(name="password", in="query", @OA\Schema(type="string"), required=true, description="密码"),
     *     @OA\Response(
     *      response="200",
     *      description="登录接口"
     *     )
     * )
     */

    public function login()
    {
        $credentials = request(['username', 'password']);

        if (!$token = $this->guard()->attempt($credentials)) {
            return response()->json([
                'errorcode' => '401',
                'errormsg' => '登录失败'
            ], 401);
        }

        return $this->respondWithToken($token);
    }

    /**
     * @OA\Post(
     *     path="/customer/login-by-code",
     *     tags={"用户端用户相关"},
     *     summary="V2-通过微信端获取的code进行登录",
     *     description="",
     *     @OA\Parameter(name="code", in="query", @OA\Schema(type="string"), required=true, description="code"),
     *     @OA\Response(
     *      response="200",
     *      description="微信code登录接口"
     *     )
     * )
     */

    public function loginByCode()
    {
        $code = request()->code;
        $url = "https://api.weixin.qq.com/sns/jscode2session?appid=%s&secret=%s&js_code=%s&grant_type=authorization_code";
        $url = sprintf($url, $this->appid, $this->appsecret, $code);
        $res = curl($url);
        if (!isset($res["openid"])) {
            return response()->json($res, 401);
        }

        $openid = $res["openid"];
        $user = $this->authModel->firstOrNew([
            "openid" => $openid
        ]);
        if ($user->mobile) {
            $token = $this->guard()->login($user);
            return $this->respondWithToken($token);
        }

        $user->session_key = $res["session_key"];
        return response()->json([
            'token' => null,
            'user_info' => $user
        ]);
    }

    /**
     * @OA\Post(
     *     path="/customer/me",
     *     tags={"用户端用户相关"},
     *     summary="V2-通过token换取个人信息",
     *     description="",
     *     @OA\Parameter(name="token", in="query", @OA\Schema(type="string"), required=true, description="token"),
     *     @OA\Response(
     *      response="200",
     *      description="通过token换取个人信息"
     *     )
     * )
     */

    public function me()
    {
        return response()->json($this->guard()->user());
    }

    /**
     * Log the user out (Invalidate the token).
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function logout()
    {
        $this->guard()->logout();
        return response()->json(['message' => 'Successfully logged out']);
    }

    /**
     * Refresh a token.
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function refresh()
    {
        return $this->respondWithToken($this->guard()->refresh());
    }

    /**
     * Get the token array structure.
     *
     * @param string $token
     *
     * @return \Illuminate\Http\JsonResponse
     */
    protected function respondWithToken($token)
    {
        return response()->json([
            'access_token' => $token,
            'token_type' => 'bearer',
            'expires_in' => $this->guard()->factory()->getTTL() * 60,
            'user_info' => $this->guard()->user()
        ]);
    }

    public function getAccessToken()
    {
        $access_token = cache('customer_access_token');
        if (!$access_token) {
            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s";
            $url = sprintf($url, $this->appid, $this->appsecret);
            $callback = curl($url);
            if (!isset($callback['access_token'])) {
                dd("获取ACCESS_TOKEN失败，请重试！");
            }
            $access_token = $callback['access_token'];
            Cache::put("customer_access_token", $access_token, 60);
        }
        return $access_token;
    }

    /**
     * @OA\Post(
     *     path="/customer/get-phone-by-openid",
     *     tags={"用户端用户相关"},
     *     summary="V2-通过openid，encryptedData，iv获取手机号",
     *     description="",
     *     @OA\Parameter(name="openid", in="query", @OA\Schema(type="string"), required=true, description="openid"),
     *     @OA\Parameter(name="iv", in="query", @OA\Schema(type="string"), required=true, description="iv"),
     *     @OA\Parameter(name="encryptedData", in="query", @OA\Schema(type="string"), required=true, description="encryptedData"),
     *     @OA\Response(
     *      response="200",
     *      description="通过openid，encryptedData，iv获取手机号"
     *     )
     * )
     */
    public function getPhoneByOpenid()
    {
        $encryptedData = request()->encryptedData;
        $sessionKey = request()->sessionKey;
        $iv = request()->iv;

        $aesKey = base64_decode($sessionKey);
        $aesIV = base64_decode($iv);
        $aesCipher = base64_decode($encryptedData);
        $result = openssl_decrypt($aesCipher, "AES-128-CBC", $aesKey, 1, $aesIV);

        Log::channel("get_mobile_by_openid")->info($result);

        $dataObj = json_decode($result);

        if ($dataObj == NULL) {
            return response()->json([
                'errorcode' => '4001',
                'errormsg' => "手机号码解密失败"
            ], 401);
        }
        if ($dataObj->watermark->appid != $this->appid) {
            return response()->json([
                'errorcode' => '4002',
                'errormsg' => 'APPID不匹配'
            ], 401);
        }

        $openid = request()->openid;
        $user = $this->authModel->firstOrCreate([
            "mobile" => $dataObj->phoneNumber
        ]);
        $user->openid = $openid;
        $user->save();
        $token = $this->guard()->login($user);
        return $this->respondWithToken($token);
    }

    /**
     * @OA\Post(
     *     path="/customer/mobile",
     *     tags={"用户端用户相关"},
     *     summary="V2-通过code获取手机号",
     *     description="",
     *     @OA\Parameter(name="code", in="query", @OA\Schema(type="string"), required=true, description="code"),
     *     @OA\Parameter(name="openid", in="query", @OA\Schema(type="string"), required=true, description="openid"),
     *     @OA\Response(
     *      response="200",
     *      description=""
     *     )
     * )
     */
    public function mobile()
    {
        $code = request('code');
        $openid = request()->openid;
//        if (empty($openid)) {
//            return response()->json([
//                'errorcode' => '4001',
//                'errormsg' => "openid为空"
//            ], 401);
//        }
//        $config = [
//            'app_id' => $this->appid,
//            'secret' => $this->appsecret
//        ];
        $url = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=" . $this->getAccessToken();
        $postData = json_encode(['code' => $code]);
        $result = curl($url, $postData);
        $mobile = '';
        if (isset($result['phone_info']['pure_phone_number'])) {
            $mobile = $result['phone_info']['pure_phone_number'];
        } elseif (isset($result['phone_info']['purePhoneNumber'])) {
            $mobile = $result['phone_info']['purePhoneNumber'];
        }
        if (empty($mobile)) {
            return response()->json([
                'errorcode' => '4001',
                'errormsg' => "手机号码解密失败"
            ], 401);
        }
        $user = $this->authModel->firstOrCreate([
            "mobile" => $mobile
        ]);
        $user->openid = $openid;
        $user->save();
        $token = $this->guard()->login($user);
        return $this->respondWithToken($token);
    }

}