<?php

namespace App\Http\Controllers\API;

use App\Http\Resources\SourceResource;
use Illuminate\Http\Request;
use App\Source;
use Illuminate\Http\JsonResponse;
use App\Http\Resources\ArticleResource;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Cache;

class SourcesAPIController extends Controller
{
    /**
     * Return all the avaialble Sources.
     *
     */
    public function index()
    {
        return Cache::remember('sources.index', 300, function () {
            return SourceResource::collection(Source::all());
        });
    }

    /**
     * Return all the articles for a given source
     *
     * @param  mixed $source
     * @return JsonResponse
     */
    public function show(Source $source)
    {
        $currentPage = request()->get('page', 1);
        return Cache::remember($source->slug . '_' . $currentPage, 3600, function () use ($source) { // Cache for an hour
            return response()->json([
                'source' => new SourceResource($source),
                'articles' =>  $source->articles()->with('source')->latest('published_date')->paginate(8)
            ]);
        });
    }
}