Linted all pirate, git, tmdb and searchHistory scripts.
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@@ -2,43 +2,43 @@ const assert = require('assert');
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const establishedDatabase = require('src/database/database');
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class Cache {
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constructor(database) {
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this.database = database || establishedDatabase
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this.queries = {
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'read': 'SELECT value, time_to_live, created_at, DATETIME("now", "localtime") as now, ' +
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'DATETIME(created_at, "+" || time_to_live || " seconds") as expires ' +
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'FROM cache WHERE key = ? AND now < expires',
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'create': 'INSERT OR REPLACE INTO cache (key, value, time_to_live) VALUES (?, ?, ?)',
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};
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}
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constructor(database) {
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this.database = database || establishedDatabase;
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this.queries = {
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read: 'SELECT value, time_to_live, created_at, DATETIME("now", "localtime") as now, ' +
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'DATETIME(created_at, "+" || time_to_live || " seconds") as expires ' +
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'FROM cache WHERE key = ? AND now < expires',
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create: 'INSERT OR REPLACE INTO cache (key, value, time_to_live) VALUES (?, ?, ?)',
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};
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}
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/**
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* Retrieve an unexpired cache entry by key.
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* @param {String} key of the cache entry
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* @returns {Object}
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*/
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get(key) {
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return Promise.resolve()
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.then(() => this.database.get(this.queries.read, [key]))
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.then((row) => {
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assert(row, 'Could not find cache enrty with that key.');
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return JSON.parse(row.value);
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})
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}
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/**
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* Retrieve an unexpired cache entry by key.
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* @param {String} key of the cache entry
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* @returns {Object}
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*/
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get(key) {
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return Promise.resolve()
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.then(() => this.database.get(this.queries.read, [key]))
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.then((row) => {
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assert(row, 'Could not find cache enrty with that key.');
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return JSON.parse(row.value);
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});
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}
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/**
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* Insert cache entry with key and value.
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* @param {String} key of the cache entry
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* @param {String} value of the cache entry
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* @param {Number} timeToLive the number of seconds before entry expires
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* @returns {Object}
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*/
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set(key, value, timeToLive = 172800) {
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const json = JSON.stringify(value);
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return Promise.resolve()
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.then(() => this.database.run(this.queries.create, [key, json, timeToLive]))
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.then(() => value);
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}
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/**
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* Insert cache entry with key and value.
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* @param {String} key of the cache entry
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* @param {String} value of the cache entry
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* @param {Number} timeToLive the number of seconds before entry expires
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* @returns {Object}
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*/
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set(key, value, timeToLive = 172800) {
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const json = JSON.stringify(value);
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return Promise.resolve()
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.then(() => this.database.run(this.queries.create, [key, json, timeToLive]))
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.then(() => value);
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}
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}
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module.exports = Cache;
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