<?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 App\Models\ArticlePointsLog;
use App\Models\PointsLog;
use App\Services\PointsService;
use Illuminate\Http\Request;
use Illuminate\Support\Arr;
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', ''),
        ]);
    }

    /**
     *
     *
     * @param \Illuminate\Http\Request $request
     * @return void
     */
    public function index(Request $request)
    {
        $cate = (string) $request->query('cate');
        $key = (string) $request->query('key');
        $categoryId = Arr::get([
            'help'=> app_settings('app.article_help'),
            'agreement'=> app_settings('app.article_agreement'),
            'health'=> app_settings('app.article_health'),
        ], $cate);
        $query = Article::query()->with(['likesInfo'=>function ($q) use ($request) {
            $user_id = $request->user()?->id;
            return $q->where('user_id', $user_id ?? 0);
        }])->where('is_show', 1);
        if ($categoryId) {
            $query->where('category_id', $categoryId);
        }
        if ($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 healthCategory(Request $request)
    {
        $key = (string) $request->query('key');
        $categoryId = app_settings('app.article_health');
        $query = ArticleCategory::query()->where('parent_id', $categoryId)->where('is_show', 1);

        if ($key) {
            $query->where('name', 'like', '%'.$key.'%');
        }

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

        $categories = $query->get();

        return ArticleCategoryResource::collection($categories);
    }

    public function articleList($id, Request $request)
    {
        $key = (string) $request->query('key');
        $categoryId = $id;
        $query = Article::query()->with(['likesInfo'=>function ($q) use ($request) {
            $user_id = $request->user()?->id;
            return $q->where('user_id', $user_id ?? 0);
        }])->where('is_show', 1);
        if ($categoryId) {
            $query->where('category_id', $categoryId);
        }
        if ($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);
    }

    /**
     * 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, PointsService $pointsService)
    {
        $article = Article::where('is_show', 1)->findOrFail($id);
        if ($article->points > 0) {
            if (ArticlePointsLog::where('user_id', $request->user()->id)->whereDate('created_at', now())->exists()) {
                throw new BizException('您今天已拿过积分了，请明天再来');
            }
            try {
                DB::beginTransaction();
                ArticlePointsLog::create([
                    'user_id' => $request->user()->id,
                    'article_id' => $article->id,
                ]);
                $pointsService->sendPoints(PointsLog::TYPE_READ, $request->user(), $article->points, '阅读文章送积分');
                DB::commit();
            } catch (Throwable $th) {
                DB::rollBack();
                report($th);
                throw new BizException('系统繁忙，请稍后再试');
            }
        }
        return response()->json([
            'points'=>$article->points,
        ]);
    }
}