<?php

namespace App\Http\Controllers\Api;
use App\Http\Controllers\Controller;
use App\Models\Channel;
use App\Models\Notice;
use App\Models\AgentProduct;
use App\Models\Slide;
use App\Models\Special;
use App\Models\UserChannel;
use Illuminate\Support\Facades\Storage;

/**
 * 小程序首页
 * Class IndexController
 * @package App\Http\Controllers\Api
 */
class IndexController extends Controller
{
    // 首页数据大杂烩
    public function index()
    {
		$img_prefix = Storage::disk('public')->url('');

		# 轮播图
        $slide = Slide::where(['agent_id' => $this->agent_id, 'status' => 1])
			->orderBy('sort')->orderBy('id', 'DESC')->limit(10)
			->get(['title', 'picture', 'type', 'url']);
        foreach ($slide as &$v) {
        	$v->picture = $img_prefix . $v->picture;
		}

        # 公告
        $notice = Notice::where('agent_id', $this->agent_id)->limit(10)
			->orderBy('sort')->orderBy('id', 'desc')->get(['id', 'title']);

        # 我的频道
		if ($this->user_id) {
			$channel_ids = UserChannel::where('user_id', $this->user_id)->value('channels');
			//如果不存在则存入初始数据
			if (!$channel_ids) {
				$channel_ids = Channel::where([
						['agent_id', '=', $this->agent_id],
						['pid', '<>', 0],
					])
					->orderBy('id')
					->limit(8)
					->pluck('id')
					->toArray();
				//存入user_channel
				UserChannel::where('user_id', $this->user_id)
					->insert([
						'user_id' => $this->user_id,
						'channels' => json_encode($channel_ids)
					]);
			}
			$my_channels = Channel::where('agent_id', $this->agent_id)
				->whereIn('id', $channel_ids)
				->get(['id', 'name', 'icon']);
		} else {
			$my_channels = Channel::where('agent_id', $this->agent_id)
				->where('pid', '<>', 0)
				->orderBy('id')
				->limit(8)
				->get(['id', 'name', 'icon']);
		}
		if (!$my_channels->isEmpty()) {
			foreach ($my_channels as &$v) {
				$v->icon = $img_prefix . $v->icon;
			}
		}

        # 专题列表
		$special = Special::query()
			->where('agent_id', $this->agent_id)
			->orderBy('sort')->orderBy('id')
			->limit(6)->get(['id', 'picture_ad']);
		if (!$special->isEmpty()) {
			foreach ($special as $k=>&$v) {
				$v->picture_ad = $img_prefix . $v->picture_ad;
			}
		}

        # 人气爆款
        $hots = AgentProduct::query()
			->where('agent_id', $this->agent_id)
			->select('id', 'sale', 'product_id', 'price', 'original_price') //必须查询product_id才能with
			->with('product:id,title,pictures') //必须查询ID才能正常查询
			->limit(6)->get();
		if (!$hots->isEmpty()) {
			foreach ($hots as &$v) {
				if (!empty($v->product->pictures) && is_array($v->product->pictures)) {
					$v->product->pictures = array_map(function($item) use ($img_prefix) {
						return strpos($item, $img_prefix) === false ? $img_prefix . $item : $item;
					}, $v->product->pictures);
				}
			}
		}

		return $this->success([
            'slide' => $slide,
            'notice' => $notice,
            'my_channels' => $my_channels,
            'special' => $special,
            'hots' => $hots,
        ]);
    }
}