94 lines
2.2 KiB
JavaScript
94 lines
2.2 KiB
JavaScript
function File(id){
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let _this = this;
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if(!id) id = File.uuid();
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let info = this.info = {id, enabled:true};
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this.changeInfo = function(i){
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for(let _i in i){
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info[_i] = i[_i];
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}
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};
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this.save = function(){
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return new Promise(function(succ, err){
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Storage.save({[File.PREFIX+info.id]:info}).then(_ => {
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File.saveIndex(info.id, info.enabled).then(succ);
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});
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});
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};
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this.onChange = function(info){}; //Placeholder function
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Storage.onChange(File.PREFIX+id, newInfo => {
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_this.changeInfo(newInfo);
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_this.onChange(newInfo);
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});
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}
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File.PREFIX = "FILE-";
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File.saveIndex = function(id, enabled){
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return new Promise((succ, err) => {
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File.loadIndex().then((index) => {
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index[id] = enabled;
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Storage.save({"INDEX":index}).then(succ);
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});
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});
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};
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File.loadIndex = function(){
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return new Promise((succ, err) => {
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Storage.load(["INDEX"]).then((result) => {
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let index = result["INDEX"] || {};
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succ(index);
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});
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});
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};
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File.uuid = function(){
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return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c =>
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(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
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)
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};
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File.remove = function(id){
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return new Promise((succ, err) => {
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File.loadIndex().then((index) => {
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delete index[id];
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Storage.save({"INDEX":index}).then(_ => {
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Storage.remove([File.PREFIX+id]).then(succ);
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});
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});
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});
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};
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File.load = function(id){
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return new Promise((succ, err) => {
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let innerID = File.PREFIX+id;
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Storage.load([innerID]).then(result => {
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if(!result[innerID]) err();
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let file = new File(id);
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file.changeInfo(result[innerID]);
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succ(file);
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});
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});
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};
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File.loadAll = function(){
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return new Promise((succ, err) => {
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let files = [];
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File.loadIndex().then((index) => {
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for(let id in index){
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files.push(File.load(id));
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}
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Promise.all(files).then((files) => {
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succ(files);
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});
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});
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});
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};
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File.loadEnabled = function(){
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return new Promise((succ, err) => {
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let files = [];
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File.loadIndex().then((index) => {
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for(let id in index){
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if(index[id]) files.push(File.load(id));
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}
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Promise.all(files).then((files) => {
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succ(files);
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})
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});
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});
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};
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