<?php

namespace App\Admin\Controllers;

use App\Models\Category;
use App\Models\Seller;
use App\Models\SellerLesson;
use App\Models\SellerLessonLog;
use Illuminate\Http\Request;
use Validator;

class LessonController extends Controller
{

    public function index(Request $request)
    {
        if (\Admin::id() != 1 && \Admin::user()->seller->type != 'organ') {
            return $this->error('您没有权限');
        }
        $title          = $request->title;
        $orderField     = $request->orderField;
        $orderDirection = $request->orderDirection;
        $numPerPage     = $request->numPerPage ?: 30;

        $lists = SellerLesson::with('organ')
            ->withCount('logs')
            ->when($title, function ($query) use ($title) {
                $query->where('title', 'like', "%" . $title . "%");
            })
            ->when($orderField, function ($query) use ($orderField, $orderDirection) {
                $query->orderBy($orderField, $orderDirection);
            })
            ->paginate($numPerPage);

        return view('Admin::lesson.index', compact('lists'));
    }

    public function create()
    {
        $organs    = Seller::where('status', 1)->where('type', 'organ')->get();
        $categoies = Category::treeSelect(1);

        return view('Admin::lesson.create', compact('organs', 'categoies'));
    }

    public function store(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'title'       => 'required|min:2|max:50',
            'chapter'     => 'required',
            'price'       => 'required',
            'crowd'       => 'required',
            'crowd_age'   => 'required',
            'maximum'     => 'required',
            'seller_id'   => 'required',
            'description' => 'required',
            'storage_id'  => 'required',
            'content'     => 'required',
        ], [
            'name.required'        => '课程名称必须填写',
            'name.min'             => '课程名称最少为:min字符',
            'name.max'             => '课程名称最多为:max字符',
            'chapter.required'     => '章节数必须填写',
            'price.required'       => '价格必须填写',
            'crowd.required'       => '适合人群必须填写',
            'crowd_age.required'   => '适合年龄必须填写',
            'maximum.required'     => '报名人数必须填写',
            'seller_id.required'   => '机构必须选择',
            'description.required' => '简介必须填写',
            'storage_id.required'  => '图片必须上传',
            'content.required'     => '详情必须填写',
        ]);

        if ($validator->fails()) {
            return $this->error($validator->errors()->first());
        }
        if (SellerLesson::create($request->all())) {
            return $this->success('', 'close');
        } else {
            return $this->error();
        }
    }

    public function edit(SellerLesson $lesson)
    {
        $organs    = Seller::where('status', 1)->where('type', 'organ')->get();
        $categoies = Category::treeSelect(1);
        return view('Admin::lesson.edit', compact('lesson', 'organs', 'categoies'));
    }

    public function update(Request $request, SellerLesson $lesson)
    {
        $validator = Validator::make($request->all(), [
            'title'       => 'required|min:2|max:50',
            'chapter'     => 'required',
            'price'       => 'required',
            'crowd'       => 'required',
            'crowd_age'   => 'required',
            'maximum'     => 'required',
            'seller_id'   => 'required',
            'description' => 'required',
            'storage_id'  => 'required',
            'content'     => 'required',
        ], [
            'name.required'        => '课程名称必须填写',
            'name.min'             => '课程名称最少为:min字符',
            'name.max'             => '课程名称最多为:max字符',
            'chapter.required'     => '章节数必须填写',
            'price.required'       => '价格必须填写',
            'crowd.required'       => '适合人群必须填写',
            'crowd_age.required'   => '适合年龄必须填写',
            'maximum.required'     => '报名人数必须填写',
            'seller_id.required'   => '机构必须选择',
            'description.required' => '简介必须填写',
            'storage_id.required'  => '图片必须上传',
            'content.required'     => '详情必须填写',
        ]);

        if ($validator->fails()) {
            return $this->error($validator->errors()->first());
        }

        if ($lesson->update($request->all())) {
            return $this->success('', 'close');
        } else {
            return $this->error();
        }
    }

    public function delete(SellerLesson $lesson)
    {
        if ($lesson->delete()) {
            return $this->success();
        } else {
            return $this->error();
        }

    }

    public function logs($lesson)
    {
        $logs = SellerLessonLog::where('lesson_id', $lesson)->paginate();
        return view('Admin::lesson.logs', compact('logs'));
    }

}