<?php

namespace App\Http\Controllers;

use Illuminate\Support\Str;
use Illuminate\Support\Facades\DB;
use App\Models\ProgressChapter;
use App\Models\Channel;
use App\Models\Tag;
use App\Models\TagMap;
use App\Models\PaliText;
use App\Models\View;
use App\Models\Like;
use Illuminate\Http\Request;

class ProgressChapterController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index(Request $request)
    {
        
        if($request->get('progress')){
            $minProgress = (float)$request->get('progress');
        }else{
            $minProgress = 0.8;
        }
        if($request->get('offset')){
            $offset = (int)$request->get('offset');
        }else{
            $offset = 0;
        }

        $channel_id = $request->get('channel');

        //

        $chapters=false;
        switch ($request->get('view')) {
            case 'ids':
                $aChannel = explode(',',$request->get('channel'));
                $chapters = ProgressChapter::select("channel_id")->selectRaw("uid as id")
                                         ->with(['channel' => function($query) {  //city对应上面province模型中定义的city方法名  闭包内是子查询
                                                return $query->select('*');
                                            }])
                                        ->where("book",$request->get('book'))
                                        ->where("para",$request->get('par'))
                                        ->whereIn('channel_id', $aChannel)->get();
                $all_count = count($chapters);
                break;
			case 'studio':
                #查询该studio的channel
                $channels = Channel::where('owner_uid',$request->get('id'))->select('uid')->get();
                $aChannel = [];
                foreach ($channels as $channel) {
                    # code...
                    $aChannel[] = $channel->uid;
                }
                $chapters = ProgressChapter::select($selectCol)
                                        ->whereIn('progress_chapters.channel_id', $aChannel)
                                        ->leftJoin('pali_texts', function($join)
                                                {
                                                    $join->on('progress_chapters.book', '=', 'pali_texts.book');
                                                    $join->on('progress_chapters.para','=','pali_texts.paragraph');
                                                })
                                        ->where('progress','>',0.85)
                                        ->orderby('progress_chapters.created_at','desc')
                                        ->get();
                break;
            case 'tag':
                $tm = (new TagMap)->getTable();
                $pc =(new ProgressChapter)->getTable();
                $t = (new Tag)->getTable();            
                $query = "select t.name,count(*) from $tm  tm
                            join tags as t on tm.tag_id = t.id
                            join progress_chapters as pc on tm.anchor_id = pc.uid
                            where tm.table_name  = 'progress_chapters' and 
                            pc.progress > ?
                            group by t.name;";
                $chapters = DB::select($query, [$minProgress]);
                if($chapters){
                    $all_count = count($chapters);
                }else{
                    $all_count = 0;
                }
                break;
            case 'chapter-tag':
                $tm = (new TagMap)->getTable();
                $pc =(new ProgressChapter)->getTable();
                $tg = (new Tag)->getTable();     
                $pt = (new PaliText)->getTable();  
                if($request->get('tags') && $request->get('tags')!==''){
                    $tags = explode(',',$request->get('tags'));
                    foreach ($tags as $tag) {
                        # code...
                        if(!empty($tag)){
                            $tagNames[] = $tag;
                        }
                    }
                }
                
                $param[] = $minProgress;
                if(isset($tagNames)){
                    $where1 = " where co = ".count($tagNames);
                    $a = implode(",",array_fill(0, count($tagNames), '?')) ;
                    $in1 = "and t.name in ({$a})";
                    $param  = array_merge($param, $tagNames);
                }else{
                    $where1 = " ";
                    $in1 = " ";
                }
                if(Str::isUuid($channel_id)){
                    $channel = "and channel_id = '{$channel_id}' "; 
                }else{
                    $channel = "";
                }

                $query = "
                    select tags.id,tags.name,co as count 
                        from (
                            select tm.tag_id,count(*) as co from (
                                select anchor_id as id from (
                                    select tm.anchor_id , count(*) as co
                                        from $tm as  tm
                                        left join $tg as t on tm.tag_id = t.id
                                        left join $pc as pc on tm.anchor_id = pc.uid
                                        where tm.table_name  = 'progress_chapters' and 
                                              pc.progress  > ? 
                                        $in1
                                        $channel
                                        group by tm.anchor_id
                                ) T 
                                    $where1
                            ) CID 
                            left join $tm as tm on tm.anchor_id = CID.id 
                            group by tm.tag_id
                        ) tid
                        left join $tg on $tg.id = tid.tag_id
                        order by count desc
                    ";
                    if(isset($param)){
                        $chapters = DB::select($query,$param);
                    }else{
                        $chapters = DB::select($query);
                    }
                    $all_count = count($chapters);
                break;
            case 'lang':
                
                $chapters = ProgressChapter::select('lang')
                                            ->selectRaw('count(*) as count')
                                            ->where("progress",">",$minProgress)
                                            ->groupBy('lang')
                                            ->get();
                $all_count = count($chapters);
                break;
            case 'channel-type':
                break;
            case 'channel':
            /*
            总共有多少channel
            */
                $chapters = ProgressChapter::select('channel_id')
                                           ->selectRaw('count(*) as count')
                                           ->with(['channel' => function($query) {  
                                                return $query->select('*');
                                            }])
                                           ->leftJoin('channels','progress_chapters.channel_id', '=', 'channels.uid')
                                           ->where("progress",">",$minProgress)
										   ->where('channels.status','>=',30);
                if(!empty($request->get('channel_type'))){
                    $chapters =  $chapters->where('channels.type',$request->get('channel_type'));
                }
                if(!empty($request->get('lang'))){
                    $chapters =  $chapters->where('progress_chapters.lang',$request->get('lang'));
                }
                $chapters =  $chapters->groupBy('channel_id')
                                            ->orderBy('count','desc')
                                            ->get();
                $all_count = count($chapters);
                break;
            case 'chapter_channels':
            /*
                某个章节 有多少channel
            */
                $chapters = ProgressChapter::select('book','para','progress_chapters.uid','progress_chapters.channel_id','progress','updated_at')
                                            ->with(['channel' => function($query) {
                                                return $query->select('*');
                                            }])
                                            ->where("book",$request->get('book'))
                                            ->where("para",$request->get('par'))
                                            ->orderBy('progress','desc')
                                            ->get();
                foreach ($chapters as $key => $value) {
                    # code...
                    $chapters[$key]->views = View::where("target_id",$value->uid)->count();
                    
                    $likes = Like::where("target_id",$value->uid)
                                ->groupBy("type")
                                ->select("type")
                                ->selectRaw("count(*)")
                                ->get();
                    if(isset($_COOKIE["user_uid"])){
                        foreach ($likes as $key1 => $like) {
                            # 查看这些点赞里有没有我点的
                            $myLikeId =Like::where(["target_id"=>$value->uid,
                                            'type'=>$like->type,
                                            'user_id'=>$_COOKIE["user_uid"]])->value('id');
                            if($myLikeId){
                                $likes[$key1]->selected = $myLikeId;
                            }
                        }
                    }
                    $chapters[$key]->likes = $likes;
                    
                }
                
                $all_count = count($chapters);
                break;
            case 'chapter':
                $tm = (new TagMap)->getTable();
                $pc =(new ProgressChapter)->getTable();
                $tg = (new Tag)->getTable();     
                $pt = (new PaliText)->getTable();  
                if($request->get('tags') && $request->get('tags')!==''){
                    $tags = explode(',',$request->get('tags'));
                    foreach ($tags as $tag) {
                        # code...
                        if(!empty($tag)){
                            $tagNames[] = $tag;
                        }
                    }
                }
                
                
                if(isset($tagNames)){
                    $where1 = " where co = ".count($tagNames);
                    $a = implode(",",array_fill(0, count($tagNames), '?')) ;
                    $in1 = "and t.name in ({$a})";
                    $param = $tagNames;
                }else{
                    $where1 = " ";
                    $in1 = " ";
                }
                if(Str::isUuid($channel_id)){
                    $channel = "and channel_id = '{$channel_id}' "; 
                }else{
                    $channel = "";
                }

				
                $param[] = $minProgress;

                if(!empty($request->get('lang'))){
                    $whereLang = " and pc.lang = ? ";
                    $param[] = $request->get('lang');
                }else{
                    $whereLang = "   ";
                }                

				if($request->has('channel_type') && !empty($request->get('channel_type'))){
					$channel_type = "and ch.type = ? "; 
					$param[] = $request->get('channel_type');
				}else{
					$channel_type = "";
				}	

                $param_count = $param;
                $param[] = $offset;


                $query = "
                select tpc.pc_uid as uid, tpc.book ,tpc.para,tpc.channel_id,tpc.title,pt.toc,pt.path,tpc.progress,tpc.summary,tpc.created_at,tpc.updated_at 
                    from (
						select pcd.uid as pc_uid, ch.uid as ch_uid, book , para, channel_id,progress, title ,pcd.summary , pcd.created_at,pcd.updated_at
							from (
								select uid, book,para,lang,progress,channel_id,title,summary ,created_at ,updated_at
									from (
										select anchor_id as cid 
											from (
												select tm.anchor_id , count(*) as co 
													from $tm as  tm
													left join $tg as t on tm.tag_id = t.id
													where tm.table_name  = 'progress_chapters'  
													$in1
													group by tm.anchor_id
											) T 
											$where1 
									) CID 
								left join $pc as pc on CID.cid = pc.uid 
								where pc.progress > ? 
								$channel  $whereLang
							) pcd
						left join channels as ch on pcd.channel_id = ch.uid
						where ch.status >= 30 $channel_type
                        order by pcd.created_at desc
                        limit 20 offset ?
                    ) tpc 
                    left join $pt as pt on tpc.book = pt.book and tpc.para = pt.paragraph;";
                $chapters = DB::select($query,$param);
                foreach ($chapters as $key => $value) {
                    # code...
                    $chapters[$key]->channel = Channel::where('uid',$value->channel_id)->select(['name','owner_uid'])->first();
                    $chapters[$key]->views = View::where("target_id",$value->uid)->count();
                    $chapters[$key]->likes = Like::where(["type"=>"like","target_id"=>$value->uid])->count();
                    $chapters[$key]->tags = TagMap::where("anchor_id",$value->uid)
                                                ->leftJoin('tags','tag_maps.tag_id', '=', 'tags.id')
                                                ->select(['tags.id','tags.name','tags.description'])
                                                ->get();
                }

                //计算按照这个条件搜索到的总数
                $query  = "
                         select count(*) as count 
							from (
								select *
								from (
									select anchor_id as cid 
										from (
											select tm.anchor_id , count(*) as co 
												from $tm as  tm
												left join $tg as t on tm.tag_id = t.id
												where tm.table_name  = 'progress_chapters'  
												$in1
												group by tm.anchor_id
										) T 
										$where1 
								) CID 
								left join $pc as pc on CID.cid = pc.uid 
								where pc.progress > ? 
								$channel   $whereLang
							) pcd
							left join channels as ch on pcd.channel_id = ch.uid
							where ch.status >= 30 $channel_type

                ";
                $count = DB::select($query,$param_count);
                $all_count = $count[0]->count;
                break;
            case 'top':
            break;
        }
        if($chapters){
            return $this->ok(["rows"=>$chapters,"count"=>$all_count]);
        }else{
            return $this->error("no data");
        }
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

    /**
     * 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\ProgressChapter  $progressChapter
     * @return \Illuminate\Http\Response
     */
    public function show(ProgressChapter $progressChapter)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  \App\Models\ProgressChapter  $progressChapter
     * @return \Illuminate\Http\Response
     */
    public function edit(ProgressChapter $progressChapter)
    {
        //
    }

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

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