82 lines
1.7 KiB
JavaScript
82 lines
1.7 KiB
JavaScript
const assets=require('assets');
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let watchers=Object.create(null);
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let lastWatchCode=1;
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const toBoolean=v => {
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if(v=='false' || v==false) return false;
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return true;
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};
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const notify=(key, value) => {
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const interested=watchers[key];
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if(interested) Object
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.keys(interested)
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.map(key => interested[key])
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.forEach(fn => fn(key, value));
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};
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const get=key => {
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let confVal=localStorage.getItem('config.'+key);
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if(confVal===null) return assets.get('config')[key];
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return confVal;
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};
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const getB=key => toBoolean(get(key));
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const getN=key => +get(key);
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const getS=key => ''+get(key);
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const set=(key, value) => {
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localStorage.setItem('config.'+key, value);
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notify(key, value);
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};
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const remove=key => {
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localStorage.removeItem('config.'+key, value);
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notify(key, assets.get('config')[key]);
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};
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const clear=() =>
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Object
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.keys(assets.get('config'))
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.forEach(remove);
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const watch=(key, fn) => {
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if(!watchers[key]) watchers[key]=[];
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const code='w'+lastWatchCode++;
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watchers[key][code]=fn;
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return code;
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};
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const watchB=(key, fn) => watch(key, (k, v) => fn(k, toBoolean(v)));
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const watchN=(key, fn) => watch(key, (k, v) => fn(k, +v));
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const watchS=(key, fn) => watch(key, (k, v) => fn(k, ''+v));
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const unwatch=(key, code) => {
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if(!watchers[key]) return;
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delete watchers[key][code];
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};
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const list=() =>
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Object
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.keys(assets.get('config'));
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const dict=() => {
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let dict=Object.create(null);
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Object
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.keys(assets.get('config'))
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.forEach(
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key => dict[key]={
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raw: get(key),
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b: getB(key),
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n: getN(key),
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s: getS(key)
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}
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);
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return dict;
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};
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return module.exports={
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get, getB, getN, getS,
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set,
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remove, clear,
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watch, watchB, watchN, watchS,
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unwatch,
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list, dict
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};
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