Simple library to log to the storage, granting the possibility of viewing the log after the URL changes
Este script no debería instalarse directamente. Es una biblioteca que utilizan otros scripts mediante la meta-directiva de inclusión // @require https://update.greasyfork.org/scripts/461057/1156386/LateLog%20-%20Simple%20storage-based%20Log%20Library.js
// ==UserScript==
// @name LateLog - Simple storage-based Log Library
// @namespace satology.latelog
// @version 0.2
// @description Simple library to log to the storage, granting the possibility of viewing the log after the URL changes
// @author satology
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_registerMenuCommand
// ==/UserScript==
var LateLog = (function() {
'use strict';
const latelog_getDateTimeString = (date = new Date()) => `${('' + date.getUTCFullYear()).slice(-2)}-${('0' + date.getUTCMonth()).slice(-2)}-${('0' + date.getUTCDate()).slice(-2)} ${('0' + date.getUTCHours()).slice(-2)}:${('0' + date.getUTCMinutes()).slice(-2)}:${('0' + date.getUTCSeconds()).slice(-2)}`;
class Storage {
constructor(prefix = '', config = {}) {
this.prefix = prefix;
this.config = config;
}
write(key, value, parseIt = false) {
GM_setValue(this.prefix + key, parseIt ? JSON.stringify(value) : value);
}
read(key, parseIt = false) {
let value = GM_getValue(this.prefix + key);
if(value && parseIt) {
value = JSON.parse(value);
}
return value;
}
}
class LateLog {
constructor(options = {}) {
if(!this._isValidSetup(options)) return;
this.storage = new Storage();
this.options = {
level: 5,
maxLines: 200,
addTimestamp: true,
printWhileLogging: false,
// showDisplayButton: true,
...options
};
this._init();
}
_isValidSetup(options) {
if(! (typeof GM_getValue === "function" &&
typeof GM_setValue === "function" &&
typeof GM_registerMenuCommand === "function") ) {
console.warn(
`LateLog cannot be initialized - At least one off the following @grant is missing in your script:
@grant GM_getValue
@grant GM_setValue
@grant GM_registerMenuCommand`);
return false;
}
// TODO: validate options
return true;
}
_init() {
let that = this;
GM_registerMenuCommand('View log', function(evt) {
console.log('Printing LateLog');
that.display();
});
return true;
}
_write(msg, msgLevel = 1) {
if (this.options.level < msgLevel) {
return;
}
let log = this.storage.read('log', true);
log = log ? log : [];
if (msg === null) {
msg = 'null';
}
if (msg === undefined) {
msg = 'undefined';
}
let savable = {
lvl: msgLevel
};
if (this.options.addTimestamp) {
savable.ts = `${latelog_getDateTimeString()}`;
}
if (msg instanceof Error) {
savable.msg = msg.toString();
} else if (typeof(msg) == 'object') {
savable.msg = JSON.stringify(msg);
savable.parse = true;
} else {
savable.msg = msg;
}
log.push(savable);
if(log.length > this.options.maxLines) {
log.splice(0, log.length - this.options.maxLines);
}
this.storage.write('log', log, true);
this._formatPrint(savable);
}
_getPrintFn(level) {
switch(level) {
case 1:
return console.log;
case 2:
return console.info;
case 3:
return console.debug;
case 4:
return console.warn;
case 5:
return console.error;
default:
return console.log;
}
}
_formatPrint(x) {
if (x.parse) {
try {
x.msg = JSON.parse(x.msg);
} catch (err) {}
if (this.options.addTimestamp) {
this._getPrintFn(x.lvl)(`${x.ts}:`);
}
this._getPrintFn(x.lvl)(x.msg);
} else {
this._getPrintFn(x.lvl)(`${this.options.addTimestamp ? x.ts + ' ' : ''} ${x.msg}`);
}
}
clear() { this.storage.write('log', [], true); }
display() {
let log = this.storage.read('log', true);
if(!log) {
console.log('LateLog - Nothing to show')
return;
}
log.forEach(x => {
this._formatPrint(x);
});
}
log(msg) { this._write(msg, 1); }
info(msg) { this._write(msg, 2); }
debug(msg) { this._write(msg, 3); }
warn(msg) { this._write(msg, 4); }
error(msg) { this._write(msg, 5); }
}
return LateLog;
})();