(function(){
	"use strict";

	window.KC3DataBackup = {
			saveData : function(elementkey,callback){//Save All Data to file, elementkey can be null
				var fullDBData={};
				var locked=false;
				var fullStorageData={};
				var zip = new JSZip();
				var ekex = ((typeof elementkey)==="string");//true if elementkey exists, false if not

				if(ekex)$(elementkey).append("Exporting Data...(0/3)");
				for(var i=0;i<localStorage.length;i++)
				{
					var name = localStorage.key(i);
					fullStorageData[name] = localStorage.getItem(name);
				}

				KC3Database.con.transaction("r", KC3Database.con.tables, function(){
					if(ekex)$(elementkey).append("<div>Loading Data to array...(1/4)<div/>");
					KC3Database.con.tables.forEach( //access all tables
						function(table){
							table.toArray(function(tablearray) { //add table data tmptext
									while(locked){}
									locked = true;
									fullDBData[table.name] = tablearray;
									locked = false;
							});
					});//foreach
				}).then(function(){//for transaction
					if(ekex)$(elementkey).append("<div>Loading Data to zip...(2/4)<div/>");
					zip.file("db.json",JSON.stringify(fullDBData));
					zip.file("storage.json",JSON.stringify(fullStorageData));

					if(ekex)$(elementkey).append("<div>Compressing zip....(3/4)<div/>");
					var objurl= URL.createObjectURL(zip.generate({type:"blob", compression: "DEFLATE"}));

					if(ekex)$(elementkey).append("<div>Downloading zip....(4/4)<div/>");
					console.info("Downloading file to", ConfigManager.ss_directory + "/Backup/");

					chrome.downloads.download({
						url: objurl,
						filename: ConfigManager.ss_directory+'/Backup/'+
						"["+PlayerManager.hq.name+"] "+
						dateFormat("yyyy-mm-dd")+".kc3data",
						conflictAction: "uniquify"
					}, function(downloadId){
					});
					callback();
				});//transaction

			},//savedata


			processDB : function(dbstring,overwrite,elementkey,callback){//load data from DB string, elementkey can be null
				var ekex = ((typeof elementkey)==="string");
				var dbdata = JSON.parse(dbstring);
                if(ekex)$(elementkey).text("");
				var processTables = function(dbdata_, overwrite){
					var dothing = function(){
						var tableCount = -1;
						if(!!overwrite){
							KC3Database.con.close();
							KC3Database.clear(function(){
								console.log("Cleaned up old database...");
							});
						}
						console.log("Processing tables...");
						KC3Database.init();
						KC3Database.con.open();
            			if(ekex)$(elementkey).append("<div class =\"datatransaction\">-DB Transaction Started-</div>");
						var alertwhenfinished = function() {
								setTimeout(function() {
									if(tableCount===0)  callback();
									else alertwhenfinished();
								},1000);
							};
						alertwhenfinished();

						$.each(dbdata_,function(index,tabledata) {
							if(ekex)$(elementkey).append("<div class = \""+index+"\">Table queued : "+index+" 『size : "+tabledata.length+"』</div>");
						});
						var arrEach = function(tableobj){
							var index = Object.keys(tableobj)[0];
							var tabledata = tableobj[index];
							var table = KC3Database.con[index];
							KC3Database.con.transaction("rw!",table,function(){
								console.log("Processing "+index+" 『size : "+tabledata.length+"』");
								if(ekex)$(elementkey+" ."+index).text("Processing "+index+" 『size : "+tabledata.length+"』");

								if(tableCount == -1)tableCount=1;
								else tableCount++;

								//table.clear();
								tabledata.forEach(function(record)
								{
									var id = record.id;
									if(["enemy", "encounters"].indexOf(index) == -1){
										delete record.id;
									}
									table.add(record);
								});

							}).then(function(){
								if(ekex)$(elementkey+" ."+index).text("Processed "+index);
							}).catch(console.log).finally(function(){tableCount--;delete tableobj[index];arrEach(tableobj);});
						};//arreach
						arrEach(dbdata_);
           				if(ekex)$(elementkey+" .datatransaction").text("=DB transaction all queued=");
					};//dothinh
				  dothing();

				};//processTables
				processTables(dbdata, !!overwrite);
			},//processDB

			processStorage: function(importedDataString, overwrite){
				if(!!overwrite){
					localStorage.clear();
				}
				var data = JSON.parse(importedDataString);
				$.each(data, function(index,access){
					localStorage[index]=access;
				});
				console.info("Done processing storage");
			},//processStorage

			loadData : function(file_,overwrite,elementkey,callback){
				var ekex = ((typeof elementkey)==="string");
				var zip;
				var reader = new FileReader();
				reader.onload = (function(e) {
							// read the content of the file with JSZip
							zip = new JSZip(e.target.result);
							$.each(zip.files, function (index, zipEntry) {
								switch (zipEntry.name) {
									case "db.json":
										console.info("db.json detected.");
										setTimeout(function(){
                                            KC3DataBackup.processDB(zipEntry.asText(),overwrite,elementkey,callback);
                                        },0);
										break;
									case "storage.json":
										console.info("storage.json detected.");
										if(overwrite)
												setTimeout(function()
												{
                                                     if(ekex)$(elementkey).append("<div class =\"localstorageprocess\">-storage processing-</div>");
                                                    window.KC3DataBackup.processStorage(zipEntry.asText(),overwrite);
                                                     if(ekex)$(elementkey+" .localstorageprocess").text("=storage processed=");
                                                },10);
										break;
									default:
										alert("Could be wrong file");

									}//swich: zip name
								});//file acces foreach
				});//reader.onload
				reader.readAsArrayBuffer(file_);
			}//loadData
	};
})();