<?php

namespace App\Http\Controllers;

use App\Models\PaliText;
use Illuminate\Http\Request;
use App\Http\Resources\ChapterResource;

class ChapterController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index(Request $request)
    {
        //
        switch ($request->get('view')) {
            case 'toc':
                $chapter = PaliText::where('book',$request->get('book'))
                        ->where('paragraph',$request->get('para'))
                        ->first();
                $start = $request->get('para');
                $end = $request->get('para') + $chapter->chapter_len -1 ;
                $table = PaliText::where('book',$request->get('book'))
                    ->whereBetween('paragraph',[$start,$end])
                    ->where('level','<',100)
                    ->select(['book','paragraph','level','text','chapter_strlen']);
                break;
        }
        //获取记录总条数
        $count = $table->count();
        //处理排序
        $table = $table->orderBy($request->get("order",'paragraph'),
                                    $request->get("dir",'asc'));
        //处理分页
        $table = $table->skip($request->get("offset",0))
                        ->take($request->get("limit",1000));
        $result = $table->get();
        return $this->ok([
            "rows"=>ChapterResource::collection($result),
            "count"=>$count
        ]);
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        //
    }

    /**
     * Display the specified resource.
     *
     * @param  \App\Models\PaliText  $paliText
     * @return \Illuminate\Http\Response
     */
    public function show(PaliText $paliText)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \App\Models\PaliText  $paliText
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, PaliText $paliText)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  \App\Models\PaliText  $paliText
     * @return \Illuminate\Http\Response
     */
    public function destroy(PaliText $paliText)
    {
        //
    }
}