<?php

namespace App\Http\Controllers\WeChat;

use App\Models\CheckCard;
use App\Models\Content;
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;
use Illuminate\Support\Facades\Storage;
use Intervention\Image\Facades\Image;

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', 'check_card_id' => $res->id, 'info' => '操作成功']);
    }

    public function endCheckCard(Request $request)
    {
        if(empty($request->input('check_card_id')) || empty($item = CheckCard::find($request->input('check_card_id')))) {
            return response()->json(['status' => 'fail', 'info' => '找不到打卡记录']);
        }

        $item->end_date_time = Carbon::now()->toDateTimeString();
        if(!$item->save()) {
            return response()->json(['status' => 'fail', 'info' => '打卡失败']);
        }

        return response()->json(['status' => 'success', 'info' => '打卡成功']);
    }

    public function getShareInfo(Request $request)
    {
        $share_image = Setting::where('key', 'share_image')->first();
        if(empty($share_image) || empty($share_image->value) || !Storage::disk('upload')->exists($share_image->value)) {
            return response()->json(['status' => 'fail', 'info' => '没有分享图片的信息！']);
        }
        if(empty($request->input('student_id')) || empty($student = Student::find($request->input('student_id')))) {
            return response()->json(['status' => 'fail', 'info' => '找不到用户信息！']);
        }

        $image_url = url($share_image->value);
        $image = Image::make($image_url);
        $items = $student->getCheckCardDates();
        $share_text = Setting::where('key', 'share_text')->first();
        if(empty($share_text) || empty($share_text->value)) {
            return response()->json(['status' => 'fail', 'info' => '找不到分享的文字！']);
        }
        $text = str_replace_array('{days}', [$items->count() + 1], $share_text->value);
        $share_text_pos = Setting::where('key', 'share_text_pos')->first();
        if(empty($share_text_pos) || empty($share_text_pos->value) || count($pos = explode(',', $share_text_pos->value)) < 2) {
            return response()->json(['status' => 'fail', 'info' => '分享文字位置错误或未设置！']);
        }

        return response()->json(['status' => 'success', 'width' => $image->width(), 'height' => $image->height(), 'shareImage' => $image_url, 'shareText' => $text, 'shareTextPosX' => $pos[0], 'shareTextPosY' => $pos[1]]);
    }

    public function getMoreVideos(Request $request)
    {
        $offset = $request->input('offset', 0);
        $list = Content::where('type', 3)->orderBy('sort')->offset($offset)->limit(15)->get();
        foreach($list as $item) {
            $item->pic_url = 'https://u5.9026.com/addons/swdz_mall/core/web/uploads/image/f0/f0734ad93d46497483344846864596a4.jpg';
            $item->url = url($item->content);
        }
        return response()->json(['status' => 'success', 'list' => $list]);
    }

    public function getCourseInfo(Request $request)
    {
        if(empty($request->input('student_id')) || empty($student = Student::find($request->input('student_id')))) {
            return response()->json(['status' => 'fail', 'info' => '找不到用户信息！']);
        }
        $student_course = StudentCourse::where('student_id', $student->id)->first();
        if(empty($student_course)) {
            return response()->json(['status' => 'fail', 'info' => '找不到课程！']);
        }

        $student_course->course_name = $student_course->course->name;
        $student_course->teacher_names = $student_course->getTeacherNames();
        $student_course->end_date = Carbon::createFromTimestamp(strtotime($student_course->apply_date))->addDays($student_course->duration)->toDateString();
        $student_course->short_leave_times = $student->short_leave_times;
        $student_course->long_leave_times = $student->long_leave_times;
        return response()->json(['status' => 'success', 'courseInfo' => $student_course]);
    }

    public function getMyLearnInfo(Request $request)
    {
        if(empty($request->input('student_id')) || empty($student = Student::find($request->input('student_id')))) {
            return response()->json(['status' => 'fail', 'info' => '找不到用户信息！']);
        }

        $now = Carbon::now();
        $begin_date_time = Carbon::create($now->year, $now->month, 1)->toDateTimeString();
        $thisMonthLearnTime = 0;
        $totalLearnTime = 0;
        $checkCardList = collect();
        $items = CheckCard::where('student_id', $this['id'])->whereNotNull('begin_date_time')->whereNotNull('end_date_time')->get();
        foreach($items as $item) {
            $duration = strtotime($item->end_date_time) - strtotime($item->begin_date_time);
            $totalLearnTime += $duration;
            if($item->begin_date_time >= $begin_date_time) {
                $thisMonthLearnTime += $duration;
                $day = Carbon::createFromTimestamp(strtotime($item->end_date_time))->day;
                $checkCardList->push(collect(['month' => 'current', 'day' => $day, 'color' => '#77b9b9']));
            }
        }
        $today = $now->day;
        for($i = 1; $i <= $today; ++$i) {
            $tmp = $checkCardList->where('day', $i);
            if(empty($tmp)) {
                $checkCardList->push(collect(['month' => 'current', 'day' => $i, 'color' => '#f65556']));
            }
        }

        $thisMonthLearnTime = $this->getHumanTime($thisMonthLearnTime);
        $totalLearnTime = $this->getHumanTime($totalLearnTime);

        $checkCardDays = $student->getCheckCardDates()->count();
        return response()->json(['status' => 'success', 'checkCardList' => $checkCardList, 'thisMonthLearnTime' => $thisMonthLearnTime, 'totalLearnTime' => $totalLearnTime, 'checkCardDays' => $checkCardDays])
    }

    public function getHumanTime($seconds)
    {
        $res = '';
        $tmp = floor($seconds / 3600);
        $diff_time = $seconds % 3600;
        if(!empty($tmp)) {
            $res .= $tmp . '小时';
        }
        $tmp = floor($diff_time / 3600);
        $diff_time = $diff_time % 60;
        if(!empty($tmp)) {
            $res .= $tmp . '分钟';
        }
        if(!empty($diff_time)) {
            $res .= $diff_time . '秒';
        }
        return $res;
    }
}