oMetaTranslateInitData = {};
oMetaTranslateInitData.api_key = 'nE590ffEjcKsF4HtGELCMhcsVkNbEERUJZqIN%2FxyLwC38o%2Fz%2F0xRCkPrJF1%2F07tFUEJ%2FGn7%2FzgnS%2F%2FeXken7wmGVGDeOhDeUd9HKYMaQ3ps6rJleOwvN6o4YStltVU6Km6iVPQJE9j91xjNtQ2tokxg%2FZA%3D%3D';
oMetaTranslateInitData.output_id = false;
oMetaTranslateInitData.redirect_form = false;
oMetaTranslateInitData.http_host = 'translate.meta.ua';
var oMetaTranslate = new function() {
    this.sApiKey; 
    this.sHostRedirectUrl = 'http://translate.meta.ua/'; 
    this.bAllowRedirect = true; 
    this.sHostUrl = 'http://translate.meta.ua/ajax/'; 
    this.sSnChunks = 'sn=api_recive_parts'; 
    this.sSnTranslate = 'sn=api_get_translate'; 
    this.sCharset = 'UTF-8'; 
    this.iCurrentUniqid = false; 
    this.iPartLength = 300; 
    this.iPartCount = false; 
    this.iPartSendSuccess = {count: false, parts: {}}; 
    this.iChunkSuccess = {count: false, chunks: {}}; 
    this.iChunkCount = false; 
    this.sLangFrom = false; 
    this.sLangTo = false; 
    this.aValidLangs = {en: true, de: true,lv: true, pl: true, ru: true, ua: true, fr: true}; 
    this.oChunksTranslate = {}; 
    this.callbackOnEndTranslate = false; 
    this.idTextSource = false; 
    this.idTextTranslate = false; 
    this.idLangFrom = false; 
    this.idLangTo = false; 
    this.tagNameValue = {"INPUT": true, "TEXTAREA": true }; 
    this.bRedirectForm = false; 
    
    this.idMetaForm = 'meta-translate-form'; 
    this.idMetaFormTa = 'meta-translate-ta'; 
    this.idMetaFormLangFrom = 'meta-translate-lng-from'; 
    this.idMetaFormLangTo = 'meta-translate-lng-to'; 
    this.idMetaFormLangSubmit = 'meta-translate-btn'; 
    this.idMetaFormLink = 'meta-translate-link'; 
    
    
    this.init = function(o) {
        if (typeof o == 'object') {
            if (typeof o.api_key != 'undefined') {
                this.sApiKey = o.api_key;
            }
            if (typeof o.host_url != 'undefined') {
                this.sHostUrl = o.host_url;
            }
            if (typeof o.redirect_url != 'undefined') {
                this.sHostRedirectUrl = o.redirect_url;
            }
            if (typeof o.output_id != 'undefined') {
                this.idTextTranslate = o.output_id;
            }
            if (typeof o.redirect_form != 'undefined') {
                this.bRedirectForm = o.redirect_form;
            }
            
        }
        this.sCharset = document.charset || document.characterSet;
        
        //setTimeout(this.bindMetaForm, 2000);
        
    }
    
    
    this.setEndTranslateCallback = function(f) {
        if (typeof f != 'function') {
            return false;
        }
        this.callbackOnEndTranslate = f;
    }
    
    
    this.translate = function() {
        if (this.idTextSource == false || this.idLangFrom == false || this.idLangTo == false) {
            return false;
        }
        var sLangFrom = document.getElementById(this.idLangFrom).value;
        var sLangTo = document.getElementById(this.idLangTo).value;
        var domSource = document.getElementById(this.idTextSource);
        var tn = domSource.tagName;
        var sSource = '';
        if (typeof this.tagNameValue[tn] != 'undefined' && this.tagNameValue[tn] == true) {
            sSource =  domSource.value;
        } else {
            sSource =  domSource.innerHTML;
        }

        this.traslateText({text: sSource, lang_from: sLangFrom, lang_to: sLangTo});
    }
    
    
    this.genUniqid = function() {
        return parseInt(Math.random() * 100000);
    }
    
    
    this.chunkText = function(sTextSource) {
        var aChunkedText = new Array();
        var sText = sTextSource;
        if (sText.length < this.iPartLength) {
            aChunkedText.push(sText);
            return aChunkedText;
        }
        while (sText.length > 0) {
            var s = sText.slice(0, this.iPartLength-1);
            aChunkedText.push(s);
            sText = sText.slice(this.iPartLength);
        }
        return aChunkedText;
    }
    
    
    this.traslateText = function(o) {
        if (typeof o == 'undefined' || typeof o.text == 'undefined') {
            return false;
        }
        if (typeof o.lang_from == 'undefined' || typeof this.aValidLangs[o.lang_from] == 'undefined' || this.aValidLangs[o.lang_from] != true) {
            return false;
        }
        if (typeof o.lang_to == 'undefined' || typeof this.aValidLangs[o.lang_to] == 'undefined' || this.aValidLangs[o.lang_to] != true) {
            return false;
        }
        if (o.lang_from == o.lang_to) {
            return false;
        }
        this.iPartCount = false;
        this.iPartSendSuccess.count = false;
        this.iPartSendSuccess.parts = {};
        this.iChunkSuccess.count = false;
        this.iChunkSuccess.chunks = {};
        this.iChunkCount = false;
        this.oChunksTranslate = {};
        this.sLangFrom = o.lang_from;
        this.sLangTo = o.lang_to;
        this.iCurrentUniqid = this.genUniqid();
        var aChunks = this.chunkText(o.text);
        if (typeof aChunks == undefined || aChunks.length < 1) {
            return false;
        }
        this.iPartCount = aChunks.length;
        this.sendChunks(aChunks);
    }
    
    
    this.sendChunks = function(aChunkedText) {
        var iPartCount = aChunkedText.length;
        this.iPartSendSuccess.count = 0;
        for (var i in aChunkedText) {
            var aQueryData = new Array();
            aQueryData.push(this.sSnChunks);
            aQueryData.push('uniqid=' + this.iCurrentUniqid);
            aQueryData.push('lang_from=' + this.sLangFrom);
            aQueryData.push('lang_to=' + this.sLangTo);
            aQueryData.push('part=' + i);
            aQueryData.push('pc=' + iPartCount);
            aQueryData.push('ps=' + encodeURIComponent(aChunkedText[i]));
            aQueryData.push('api_key=' + this.sApiKey);
            aQueryData.push('encoding=' + this.sCharset);
            var sQueryUrl = this.sHostUrl+'?'+aQueryData.join('&');
            this.genScriptHtml(sQueryUrl);
        }
    }
    
    
    this.genScriptHtml = function(sQueryUrl) {
        var oHtmlScript = document.createElement('script');
        var attr = document.createAttribute("type");
        attr.value = "text/javascript";
        oHtmlScript.setAttributeNode(attr);
        var attr = document.createAttribute("src");
        attr.value = sQueryUrl;
        oHtmlScript.setAttributeNode(attr);
        //var attr = document.createAttribute("id");
        //attr.value = 'mp_data_script';
        //oHtmlScript.setAttributeNode(attr);
        
        //oHtmlScript.type = 'text/javascript';
        //oHtmlScript.src = sQueryUrl;
        
        //alert(oHtmlScript);
        var body = document.getElementsByTagName('head')[0];
        body.appendChild(oHtmlScript);
        
    }
    
    
    this.onSendChunk = function(o) {
        if (typeof o == 'undefined' || typeof o.r == 'undefined' || typeof o.status == 'undefined') return false;
        if (o.r == false) {
            return false;
        }
        this.iPartSendSuccess.count++;
        this.iPartSendSuccess.parts[o.part] = true;
        switch (o.status) {
            case "redirect":
                    this.redirectToTranslate();
                    return false;
                break;
            case "start_translate":
                    if (typeof o.chunk_count == 'undefined') {
                        return false;
                    }
                    this.iChunkCount = o.chunk_count;
                    this.iChunkSuccess.count = 0;
                    this.getPartsTanslate();
                break;
            
        }
    }
    
    
    this.getPartsTanslate = function() {
        if (this.iChunkCount == false) {
            return false;
        }
        for (var i =0; i < this.iChunkCount; i++) {
            var aQueryData = new Array();
            aQueryData.push(this.sSnTranslate);
            aQueryData.push('uniqid=' + this.iCurrentUniqid);
            aQueryData.push('chunk=' + i);
            var sQueryUrl = this.sHostUrl+'?'+aQueryData.join('&');
            this.genScriptHtml(sQueryUrl);
        }
    }
    
    
    this.onGetPartsTanslate = function(o){
        if (typeof o == 'undefined' || typeof o.r == 'undefined') return false;
        if (o.r == false) {
            return false;
        }
        this.oChunksTranslate[o.chunk] = {};
        this.oChunksTranslate[o.chunk].translate = o.translate;
        this.oChunksTranslate[o.chunk].index = o.index;
        this.oChunksTranslate[o.chunk].type = o.type;
        //alert(this.oChunksTranslate[o.chunk].toSource());
        this.iChunkSuccess.count++;
        if (this.iChunkSuccess.count == this.iChunkCount) {
            this.combineChunks();
        }
    }
    
    
    this.combineChunks = function(){
        if (typeof this.oChunksTranslate != 'object' || this.oChunksTranslate.length < 1) {
            this.redirectToTranslate();
        }
        
        if (false == this.checkLink) {
            this.redirectToTranslate();
        }
        
        var sTranslate = "";
        var iLastIndex = 0;
        for (var i in this.oChunksTranslate) {
            if (iLastIndex != this.oChunksTranslate[i].index) {
                sTranslate += "\r\n";
            }
            sTranslate += (this.oChunksTranslate[i].type == "p" ? "" : " ") + this.oChunksTranslate[i].translate;
            iLastIndex = this.oChunksTranslate[i].index;
        }

        if (typeof this.callbackOnEndTranslate == 'function') {
            this.callbackOnEndTranslate(sTranslate);
            return true;
        }
        if (this.idTextTranslate != false) {
            var domTranslate = document.getElementById(this.idTextTranslate);
            if (typeof domTranslate == 'undefined') {
                this.redirectToTranslate();
            }
            var tn = domTranslate.tagName;
            if (typeof this.tagNameValue[tn] != 'undefined' && this.tagNameValue[tn] == true) {
                domTranslate.value = sTranslate;
            } else {
                domTranslate.innerHTML = sTranslate;
            }
            return true;
        }
        this.redirectToTranslate();
    }
    
    this.checkLink = function() {
        var domLink = document.getElementById(this.idMetaFormLink);
        if (typeof domLink == 'undefined') {
            return false;
        }
        return true;
    }
    
    this.redirectToTranslate = function() {
        if (!this.bAllowRedirect) {
            return false;
        }
		if (!oMetaTranslate.bRedirectForm) {
			window.location = this.sHostRedirectUrl + '?tuid=' + this.iCurrentUniqid;
			// window.open(this.sHostRedirectUrl + '?tuid=' + this.iCurrentUniqid, 'translate_result');
		}
        return false;
    }
    
}

if (typeof oMetaTranslateInitData == 'undefined') {
    oMetaTranslateInitData = {};
}

oMetaTranslateInitData.host_url = 'http://' + oMetaTranslateInitData.http_host +'/ajax/';
oMetaTranslateInitData.redirect_url = 'http://' + oMetaTranslateInitData.http_host +'/';

oMetaTranslate.init(oMetaTranslateInitData);

function fMetaTranslateBind() {
    var domForm = document.getElementById(oMetaTranslate.idMetaForm);

    domForm.onsubmit = function () { return false; };
    
    oMetaTranslate.idLangFrom = oMetaTranslate.idMetaFormLangFrom;
    oMetaTranslate.idLangTo = oMetaTranslate.idMetaFormLangTo;
    oMetaTranslate.idTextSource = oMetaTranslate.idMetaFormTa;

    var domFormSubmit = document.getElementById(oMetaTranslate.idMetaFormLangSubmit);
    domFormSubmit.onclick = function () {
		if (oMetaTranslate.bRedirectForm) {
			oMetaTranslate.translate();
			document.getElementById(oMetaTranslate.idMetaForm).setAttribute('action', oMetaTranslate.sHostRedirectUrl + '?tuid=' + oMetaTranslate.iCurrentUniqid);
			document.getElementById(oMetaTranslate.idMetaForm).submit();
			return false;
		} else {
			return oMetaTranslate.translate();
		}
	};
}

window.onload = function(){ fMetaTranslateBind(); };