<?php

namespace App\Http\Controllers\WeChat;

use App\Models\CheckCard;
use App\Models\Setting;
use App\Models\Student;
use App\Models\StudentCourse;
use Carbon\Carbon;
use GuzzleHttp\Client;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Log;

class ApiController extends Controller
{
    public function login(Request $request)
    {
        if(empty($request->input('code')) || empty($request->input('iv')) || empty($request->input('encryptedData'))) {
            return response()->json(['status' => 'error', 'info' => '参数错误']);
        }
        $code = $request->input('code');
        $iv = $request->input('iv');
        $encryptedData = $request->input('encryptedData');
        $app = app('wechat.mini_program');
        $res = $app->auth->session($code);

        if(!isset($res['session_key'])) {
            return response()->json(['status' => 'error', 'info' => '接口错误']);
        }

        $info = $app->encryptor->decryptData($res['session_key'], $iv, $encryptedData);

        if(!isset($info['openId'])) {
            return response()->json(['status' => 'error', 'info' => '接口错误']);
        }

        $student = Student::firstOrCreate([
            'open_id' => $info['openId']
        ], [
            'nickname' => $info['nickName'],
            'gender' => $info['gender'],
            'city' => $info['city'],
            'province' => $info['province'],
            'country' => $info['country'],
            'avatar_url' => $info['avatarUrl'],
            'name' => $info['nickName'],
            'short_leave_times' => 0,
            'long_leave_times' => 0,
        ]);

        $data = ['id' => $student->id, 'nickname' => $student->nickname, 'avatar_url' => $student->avatar_url];
        return response()->json(['status' => 'success', 'info' => '操作成功', 'data' => $data]);
    }

    public function checkPosition(Request $request)
    {
        if(empty($request->input('latitude')) || empty($request->input('longitude'))) {
            return response()->json(['status' => 'fail', 'info' => '参数错误']);
        }

        $center_position = Setting::where('key', 'check_card_location')->first();
        if(empty($center_position) || empty($center_position->value) || count($tmp = explode(',', $center_position->value)) < 2) {
            $tmp = ['39.916527', '116.397128'];
        }

        $client = new Client();
        $from = $tmp[0] . ',' . $tmp[1];
        $to = $request->input('latitude') . ',' . $request->input('longitude');
        $url = 'https://apis.map.qq.com/ws/distance/v1/?from=' . $from . '&to=' . $to . '&key=' . env('TECENT_POSITION_KEY');
        $res = $client->get($url);
        $res = json_decode((string)$res->getBody());
        $result = 'no';
        if($res->status == 0) {
            $radius = Setting::where('key', 'check_card_radius')->first();
            $radius = empty($radius) ? 1000 : $radius->value;
            $distance = $res->result->elements[0]->distance;
            if($distance <= $radius) {
                $result = 'ok';
            }
        }
        return response()->json(['status' => 'success', 'result' => $result]);
    }

    public function startCheckCard(Request $request)
    {
        if(empty($request->input('student_id')) || empty($student = Student::find($request->input('student_id')))) {
            return response()->json(['status' => 'fail', 'info' => '找不到学员']);
        }

        $student_course = StudentCourse::where('student_id', $student->id)->first();
        if(empty($student_course)) {
            return response()->json(['status' => 'fail', 'info' => '暂无课程']);
        }

        $res = CheckCard::create([
            'student_id' => $student_course->student_id,
            'course_id' => $student_course->course_id,
            'student_course_id' => $student_course->id,
            'begin_date_time' => Carbon::now()->toDateTimeString()
        ]);

        if(empty($res)) {
            return response()->json(['status' => 'fail', 'info' => '创建失败']);
        }
        return response()->json(['status' => 'success', 'info' => '操作成功']);
    }
}