<?php

namespace App\Http\Resources;

use App\Http\Api\StudioApi;
use App\Http\Api\UserApi;
use App\Models\Attachment;
use App\Models\Channel;
use App\Models\Collection;
use App\Models\CourseMember;
use App\Services\AuthService;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;
use Illuminate\Support\Facades\App;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;

class CourseResource extends JsonResource
{
    /**
     * Transform the resource into an array.
     *
     * @param  Request  $request
     * @return array|Arrayable|\JsonSerializable
     */
    public function toArray($request)
    {
        $data = [
            'id' => $this->id,
            'title' => $this->title,
            'subtitle' => $this->subtitle,
            'summary' => $this->summary,
            'sign_up_message' => $this->sign_up_message,
            'teacher' => UserApi::getByUuid($this->teacher),
            'course_count' => 10,
            'publicity' => $this->publicity,
            'start_at' => $this->start_at,
            'end_at' => $this->end_at,
            'sign_up_start_at' => $this->sign_up_start_at,
            'sign_up_end_at' => $this->sign_up_end_at,
            'content' => $this->content,
            'content_type' => $this->content_type,
            'cover' => $this->cover,
            'channel_id' => $this->channel_id,
            'join' => $this->join,
            'number' => $this->number,
            'request_exp' => $this->request_exp,
            'studio' => StudioApi::getById($this->studio_id),
            'created_at' => $this->created_at,
            'updated_at' => $this->updated_at,
        ];
        $data['member_count'] = CourseMember::where('course_id', $this->id)
            ->where('is_current', true)->count();

        $data['members'] = CourseMember::where('course_id', $this->id)
            ->where('is_current', true)
            ->select(['role', 'status'])
            ->get();
        $user = AuthService::current($request);
        if ($user) {
            $data['my_role'] = CourseMember::where('course_id', $this->id)
                ->where('is_current', true)
                ->where('user_id', $user['user_uid'])
                ->value('role');
        }

        if ($this->cover) {
            $thumb = str_replace('.jpg', '_m.jpg', $this->cover);
            if (App::environment('local')) {
                $data['cover_url'] = [Storage::url($this->cover), Storage::url($thumb)];
            } else {
                $data['cover_url'] = [
                    Storage::temporaryUrl($this->cover, now()->addDays(6)),
                    Storage::temporaryUrl($thumb, now()->addDays(6)),
                ];
            }
        }
        if (Str::isUuid($this->cover)) {
            $coverId = Attachment::find($this->cover);
            $cover_url = [];
            if ($coverId) {
                $cover_url[] = Storage::disk('public')->url($coverId->bucket.'/'.$coverId->name);
                $cover_url[] = Storage::disk('public')->url($coverId->bucket.'/'.$coverId->id.'_s.jpg');
                $cover_url[] = Storage::disk('public')->url($coverId->bucket.'/'.$coverId->id.'_m.jpg');
                $cover_url[] = Storage::disk('public')->url($coverId->bucket.'/'.$coverId->id.'_l.jpg');
                $data['cover_url'] = $cover_url;
            }
        }

        $textbook = Collection::where('uid', $this->anthology_id)->select(['uid', 'title', 'owner'])->first();
        if ($textbook) {
            $data['anthology_id'] = $textbook->uid;
            $data['anthology_title'] = $textbook->title;
            $data['anthology_owner'] = StudioApi::getById($textbook->owner);
        }
        if (! empty($this->channel_id)) {
            $channel = Channel::where('uid', $this->channel_id)->select(['name', 'owner_uid'])->first();
            if ($channel) {
                $data['channel_name'] = $channel->name;
                $data['channel_owner'] = StudioApi::getById($channel->owner_uid);
            }
        }

        if ($request->input('view') === 'study' || $request->input('view') === 'teach') {
            $user = AuthService::current($request);
            if ($user) {
                $course_member = CourseMember::where('user_id', $user['user_uid'])
                    ->where('course_id', $this->id)
                    ->where('is_current', true)
                    ->first();
                if ($course_member) {
                    $data['my_status'] = $course_member->status;
                    $data['my_status_id'] = $course_member->id;
                }
            }
        } else {
            // 计算待审核
            $data['count_progressing'] = CourseMember::where('course_id', $this->id)
                ->where('status', 'invited')
                ->where('is_current', true)
                ->count();
        }

        return $data;
    }
}