// ==SiteScript==
// @siteName    ThisAV
// @siteUrl     http://www.thisav.com/
// @author      mayan
// @authorUrl   
// @scriptUrl   
// @description 
// @date        2018/07/24
// @version     0.1.4
// ==/SiteScript==


function CravingSiteScript() {
    this._initialize();
}


CravingSiteScript.prototype = {
    _xhr: null,
    
    _initialize: function() {},
    
    _getXmlHttpRequest: function() {
        if ( this._xhr != null ) {
            return this._xhr;
        }
        
        var xhr = null;
        var these = [
              function() { return new XMLHttpRequest(); }
            , function() { return new ActiveXObject( "Msxml2.XMLHTTP" ); }
            , function() { return new ActiveXObject( "Microsoft.XMLHTTP" ); }
            , function() { return new ActiveXObject( "Msxml2.XMLHTTP.4.0" ); }
        ];
        
        for ( var i = 0, length = these.length; i < length; i++ ) {
            var func = these[ i ];
            try {
                xhr = func();
                break;
            }
            catch( e ) {}
        }
        this._xhr = xhr;
        
        return this._xhr;
    },
    
    _load: function( url, data, method ) {
        var req = this._getXmlHttpRequest();
        
        var mtd = ( method == null ) ? "GET" : "POST";
        
        req.open( mtd, url, false );
        
        if ( mtd == "POST" ) {
            req.setRequestHeader( "Content-Type", "application/x-www-form-urlencoded" );
        }
        
        req.send( data );
        
        return req.responseText;
    },
    
    getResponseText: function( url, data, method ) {
        return this._load( url, data, method );
    },
    
    getResponseJSON: function( url, data, method ) {
        var text = this._load( url, data, method );
        
        return eval( "("+text+")" );
    },
    
    /// Math
    random: function( limit ) {
        return Math.floor( Math.random() * limit );
    },
    
    /// String
    decodeHtml: function( str ) {
        return str.replace( /&(quot|#0*34);/ig,    "\"" )
                  .replace( /&(amp|#0*38);/ig,     "&"  )
                  .replace( /&(apos|#0*39);/ig,    "'"  )
                  .replace( /&(lt|#0*60);/ig,      "<"  )
                  .replace( /&(gt|#0*62);/ig,      ">"  )
                  .replace( /&(nbsp|#0*160);/ig,   " "  )
                  .replace( /&(frasl|#8260);/ig, "/"  )
                  .replace( /&(hellip|#8230);/ig, "…" )
                  .replace( /&#(\d+);/g, function(a,b){return String.fromCharCode(parseInt(b,10));} )
                  .replace( /&#x([0-9a-f]+);/ig, function(a,b){return String.fromCharCode(parseInt(b,16));} );
    }
}


function isSiteUrl( url ) {
    if ( url.match( /https?:\/\/(www\.)?thisav\.com\/video\/\d+\// ) ) return true;
    return false;
}


function getVideoDetail( url ) {
    url = url.replace( /^\s*http:\/\//, "https://" );
    url = url.replace( /:\/\/thisav\.com/, "://www.thisav.com" );
    
    if ( url.match( /https?:\/\/(www\.)?thisav\.com\/video\/(\d+)\// ) ) {
        var vid = RegExp.$2;
    } else {
        return null;
    }
    
    var craving = new CravingSiteScript();
    try {
        var text = craving.getResponseText( url );
    } catch( e ) {
        text = "";
    }
    if ( !text ) return null;
    
    var title = "";
    if ( !title && text.match( /<title>\s*(.*?)\s*<\/title>/ ) ) {
        title = craving.decodeHtml( RegExp.$1.replace( /\s*-[^-]*$/, "" ).replace( /\s*-[^-]*$/, "" ).replace( /\s*-[^-]*$/, "" ) );
    }
    if ( !title && text.match( /<h1>\s*(.*?)\s*<\/h1>/ ) ) {
        title = craving.decodeHtml( RegExp.$1 );
    }
    if ( !title ) title = "thisav_" + ( vid || new Date().getTime() );  
    title = title.replace(/[\\\/:*?"<>|]/g, "_");
    
    var realUrl = "";
    //legacy
    if ( text.match( /so\.addVariable\(\s*('|")file\1\s*,\s*('|")(.*?)\2\s*\)\s*;/ ) ) {
        realUrl = RegExp.$3;
    }
    
    //legacy
    if ( !realUrl &&
         text.match( /jwplayer\s*\([^)]*\)\.setup\s*\(([\s\S]*?)\)\s*;/im ) ) {
        var stup = RegExp.$1.replace( /("|')?logo\1\s*:\s*\{[^}]*\}/, "" ).replace( /("|')?related\1\s*:\s*\{[^}]*\}/, "" );
        if ( stup.match( /[,{]\s*("|')?file\1\s*:\s*("|')(.*?)\2\s*[,}]/m ) ) {
            realUrl = RegExp.$3;
        }
        if ( !realUrl &&
             stup.match( /\{\s*("|')?type\1\s*:\s*("|')html5\2\s*,\s*("|')?config\3\s*:\s*\{\s*("|')?file\4\s*:\s*('|")(.*?)\5/ ) ) {
            realUrl = RegExp.$6;
        }
    }
    
    var arrD = [];
    if ( !realUrl &&
         text.match( /<video(\s+[^>]*?id\s*=\s*("|')?my-video\2[^>]*)>([\s\S]*?)<\/video\s*>/im ) ) {
        //var attr = RegExp.$1;//attr src を無視。
        var cnt = RegExp.$3;
        var objReg = /<source(\s+[^>]*?src\s*=\s*("|')(.*?)\2[^>]*)>/igm;
        while ( objReg.test( cnt ) ) {
            var src = RegExp.$3;
            var prm = RegExp.$1;
            if ( prm.match( /\s+type\s*=\s*("|')\s*video\/.+?\1/i ) ) {
                realUrl = src;
                break;
            }
            if ( prm.match( /\s+type\s*=\s*("|')\s*application\/dash\+xml\s*\1/i ) ) {
                arrD.push( src );
            }
        }
    }
    
    //dash
    if ( !realUrl && arrD.length > 0 ) {
        var dashurl = arrD[0];//複数の場合を無視
        realUrl = dash2baseurl( dashurl, craving );
    }
    
    if ( !realUrl ) return null;
    
    return { videoTitle0: title, videoUrl0: realUrl };
}


function dash2baseurl( dashurl, craving ) {
    
    try {
        var text = craving.getResponseText( dashurl );
    } catch ( e ) {
        text = "";
    }
    if ( !text ) return "";
    
    var arr = [];
    var objReg = /<Representation(\s+[^>]*)?>([\s\S]*?)<\/Representation\s*>/igm;
    while ( objReg.test( text ) ) {
        var attr = RegExp.$1;
        var cont = RegExp.$2;
        if ( !cont ) continue;
        var obj = {};
        obj.baseurl = cont.match( /<BaseUrl(?:\s+[^>]*)?>\s*(.*?)\s*<\/BaseUrl\s*>/im )?
            craving.decodeHtml( RegExp.$1 ).replace( /^\s+/,"" ).replace( /\s+$/,"" ): "";
        if ( !obj.baseurl ) continue;
        obj.bandwidth = attr.match( /\s+bandwidth\s*=\s*("|')\s*(\d+)\s*\1/im )? parseInt(RegExp.$2,10):0;
        obj.width = attr.match( /\s+width\s*=\s*("|')\s*(\d+)\s*\1/im )? parseInt(RegExp.$2,10):0;
        obj.height = attr.match( /\s+height\s*=\s*("|')\s*(\d+)\s*\1/im )? parseInt(RegExp.$2,10):0;
        obj.mimeType = attr.match( /\s+mimeType\s*=\s*("|')(.*?)\1/im )? RegExp.$2:"";//mimetype check省略
        arr.push( obj );
    }
    if ( arr.length <= 0 ) return "";
    arr.sort( function (a,b){
        if ( b.width != a.width ) return b.width - a.width;
        return b.bandwidth - a.bandwidth;
    } );
    
    return Rel2Abs( dashurl, arr[0].baseurl );//baseをdashurlに決め打ち
}

function Rel2Abs( strPageurl, strRelurl ) {
    //2014/09/18 version 0.2
    if ( strRelurl.split( /[?&#]/ )[0].match( /(\w+?):\/\/([^\/]+)(\/.*)?/ ) ) {
        return strRelurl;
    }
    
    if ( strPageurl.split( /[?&#]/ )[0].match( /(\w+?):\/\/([^\/]+)(?:\/(.*))?/ ) ) {
        var protocol = RegExp.$1;
        var domain = RegExp.$2;
        var path = RegExp.$3;
    }
    if ( !protocol ) protocol = "http";
    if ( !domain ) domain = "";
    if ( !path ) path = "";
    var base = protocol + "://" + domain;
    
    if ( strRelurl.match( /^\/\// ) ) {
        var absurl = protocol + ":" + strRelurl;
    } else if ( strRelurl.match( /^\// ) ) {
        absurl = base + strRelurl;
    } else {
        var pathz = path.split( "/" );
        pathz.pop();
        
        if ( strRelurl.match( /^((\.\.\/|\.\/)+)(.+)?/ ) ) {
            var dotp = RegExp.$1;
            var relpath = RegExp.$3;
            var objReg = /\.\.\//g;
            while ( objReg.test( dotp ) ) pathz.pop();
        } else {
            relpath = strRelurl;
        }
        
        if ( pathz.length <= 0 ) var abspath = "/";
        else abspath = "/" + pathz.join( "/" ) + "/";
        
        absurl = base + abspath + relpath;
    }
    
    return absurl;
}