<?php

namespace App\Http\Controllers\Common;

use App\Models\BannerModel;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;

class Banners extends Controller
{

    private $bannerModel;

    public function __construct()
    {
        $this->bannerModel = new BannerModel();
    }

    /**
     * 添加广告
     * @param  Request  $request
     * @return array
     */
    public function store(Request $request)
    {
        $banner = $this->bannerModel->fill($request->toArray());
        if ($banner->save()) {
            return array(
                'code' => 200,
                'message' => 'success',
                'data' => [
                    'banner_id' => $banner->id
                ],
            );
        } else {
            return array(
                'code' => 505,
                'message' => '数据库异常'
            );
        }
    }

    /**
     * 更新广告
     * @param  Request  $request
     * @param  int  $banner_id
     * @return array
     */
    public function update(Request $request, int $banner_id)
    {
        $banner = $this->bannerModel->find($banner_id);
        if (collect($banner)->isEmpty()) {
            return array(
                'code' => 101,
                'message' => '参数错误'
            );
        }
        $banner->fill($request->toArray());
        if ($banner->save()) {
            return array(
                'code' => 200,
                'message' => 'success'
            );
        } else {
            return array(
                'code' => 505,
                'message' => '数据库异常'
            );
        }
    }

    /**
     * 删除广告
     * @param  int  $banner_id
     * @return array
     * @throws \Exception
     */
    public function delete(int $banner_id)
    {
        $banner = $this->bannerModel->find($banner_id);
        if (collect($banner)->isEmpty()) {
            return array(
                'code' => 101,
                'message' => '参数错误'
            );
        }
        if ($banner->delete()) {
            return array(
                'code' => 200,
                'message' => 'success'
            );
        } else {
            return array(
                'code' => 505,
                'message' => '数据库异常'
            );
        }
    }

    /**
     * 获取广告信息
     * @param  int  $banner_id
     * @return array
     */
    public function get(int $banner_id)
    {
        $banner = $this->bannerModel->find($banner_id);
        if (collect($banner)->isEmpty()) {
            return array(
                'code' => 101,
                'message' => '参数错误'
            );
        }
        return array(
            'code' => 200,
            'message' => 'success',
            'data' => $banner
        );
    }

    /**
     * 获取某位置的广告
     * @param $position
     * @return array
     */
    public function listByPosition($position)
    {
        $banners = $this->bannerModel->where('position', $position)->orderBy('sort', 'desc')->get();
        return array(
            'code' => 200,
            'message' => 'success',
            'data' => $banners
        );
    }
}