<?php

namespace App\Endpoint\Api\Http\Controllers;

use App\Endpoint\Api\Http\Resources\ArticleCategoryResource;
use App\Endpoint\Api\Http\Resources\ArticleResource;
use App\Endpoint\Api\Http\Resources\ArticleSimpleResource;
use App\Exceptions\BizException;
use App\Helpers\Paginator as PaginatorHelper;
use App\Models\Article;
use App\Models\ArticleCategory;
use App\Models\ArticleLikesLog;
use Dcat\Admin\Support\Helper;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Throwable;

class ArticleController extends Controller
{
    /**
     * 指定文章配置：关于我们、用户推广协议、隐私协议
     *
     * @return void
     */
    public function config(Request $request)
    {
        return response()->json([
            'about_us'=>app_settings('app.article_about_us', ''),
            'user_promotion_agreement'=> app_settings('app.article_user_promotion_agreement', ''),
            'user_hide_agreement' => app_settings('app.article_user_hide_agreement', ''),
            'article_profit' => app_settings('app.article_profit', ''),
        ]);
    }

    public function index(Request $request)
    {
        $cate = (string) $request->query('cate', app_settings('app.article_health'));
        $key = (string) $request->query('key');
        $query = Article::where('is_show', 1);
        if ($cate) {
            $query->where('category_id', $cate);
        }
        if ($key) {
            $query->where('title', 'like', '%'.$key.'%');
        }

        $query->orderBy('is_recommend', 'desc');
        $query->orderBy('sort', 'desc');
        $query->orderBy('created_at', 'desc');

        $list = $query->simplePaginate(PaginatorHelper::resolvePerPage('per_page', 20, 50));
        return ArticleSimpleResource::collection($list);
    }

    public function category()
    {
        $list = ArticleCategory::where('parent_id', app_settings('app.article_health'))->show()->sort()->get();

        return ArticleCategoryResource::collection($list);
    }

    public function categoryTree()
    {
        $pid = app_settings('app.article_health');
        $nodes = ArticleCategory::where('parent_id', $pid)->show()->sort()->select(['id', 'cover', 'name', 'parent_id', 'sort'])->get();
        $list = Helper::buildNestedArray($nodes->all(), $pid, 'id', 'parent_id');

        return $list;
    }

    /**
     * 文章详情
     *
     * @param [type] $id
     * @return void
     */
    public function show($id, Request $request)
    {
        $article = Article::with([
            'likesInfo' => function ($q) use ($request) {
                return $q->where('user_id', $request->user()?->id);
            }
        ])->where('is_show', 1)->findOrFail($id);
        return ArticleResource::make($article);
    }

    /**
     * 文章点赞
     *
     * @param [type] $id
     * @param Request $request
     * @return void
     */
    public function like($id, Request $request)
    {
        $article = Article::where('is_show', 1)->findOrFail($id);
        if (ArticleLikesLog::where('user_id', $request->user()->id)->where('article_id', $article->id)->exists()) {
            throw new BizException('您已点赞过这篇文章');
        }
        try {
            DB::beginTransaction();
            ArticleLikesLog::create([
                'article_id' => $article->id,
                'user_id'    => $request->user()->id,
            ]);
            $article->increment('likes');
            DB::commit();
        } catch (Throwable $th) {
            DB::rollBack();
            report($th);
            throw new BizException('系统繁忙，请稍后再试');
        }
        return response()->noContent();
    }

    /**
     * 阅读加积分接口
     *
     * @param [type] $id
     * @return void
     */
    public function read($id, Request $request)
    {
        return response()->json([
            'points' => 0,
        ]);
    }
}