redis module finished!
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1 changed files with 85 additions and 80 deletions
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const redis = require('redis')
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/*
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* - All get/set functions will return nothing if the key is not found in the database.
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* - If you want to delete a key, use hdelAsync. Writing extended functions for deleting keys is pointless.
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* - Member key names are formatted as "guildID-userID". Use this.member.del(guildId + '-' + id) to delete member data.
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*/
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const { promisifyAll } = require('bluebird');
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const redis = promisifyAll(require('redis'));
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const generators = require('redis-async-gen');
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const { data } = require('./logger');
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const { promisify } = require('util');
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class Redis {
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constructor(client) {
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this.client = client;
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}
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init () {
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const conf = this.client.config.redis
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// Create redis client
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this.global = redis.createClient(conf)
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this.global = redis.createClient(this.client.config.redis)
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this.guild = this.global.duplicate({ db: 1 })
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this.member = this.global.duplicate({ db: 2 })
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this.user = this.global.duplicate({ db: 3 })
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// Promises
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this.guildGetAsync = promisify(this.guild.hget).bind(this.guild)
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this.memberGetAsync = promisify(this.member.hget).bind(this.member)
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this.userGetASync = promisify(this.user.hget).bind(this.user)
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// Monitor for events emitted by Redis client
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this.global.on('ready', () => {
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this.client.logger.info('Connected to Redis DB.');
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});
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this.guildGetAllAsync = promisify(this.guild.hgetall).bind(this.guild)
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this.memberGetAllAsync = promisify(this.member.hgetall).bind(this.member)
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this.userGetAllAsync = promisify(this.user.hgetall).bind(this.user)
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};
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this.global.on('reconnecting', () => {
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this.client.logger.info('Attempting to reconnect to Redis DB...');
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});
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async guildGet (id, key) {
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let result = await this.client.db.guildGetAsync(id, key);
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this.global.on('error', (err) => {
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this.client.logger.error('Redis error: ' + err);
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});
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if(result === null) {
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result = this.client.config.defaultGuildData[key]
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if (!result) {
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throw new Error('The key provided is invalid. Please check for typing errors.')
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}
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}
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return result;
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this.global.on('warning', (warn) => {
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this.client.logger.warn('Redis warning: ' + warn);
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});
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}
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async guildSet (id, key, newValue) {
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const oldValue = this.client.db.guildGetAsync(id, key);
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async getGuildKey (id, key) {
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let result = await this.guild.hgetAsync(id, key);
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if (oldValue === newValue) {
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return 'This setting already has that value!'
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};
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// Return value in config if no override is found in the database
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if(result === null) result = this.client.config.defaultGuildData[key];
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if (!this.client.config.defaultGuildData[key]) {
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return 'I couldn\'t find this setting, so it probably doesn\'t exist. Check for typos!'
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};
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return result;
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};
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if (newValue === this.client.config.defaultGuildData[key]) {
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this.client.db.guildDeleteKey(id, key); // Delete duplicates and use defaults in config file
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async getMemberKey (id, key) {
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let result = await this.member.hgetAsync(id, key);
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if(result === null) result = this.client.config.defaultMemberData[key];
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return result;
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};
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async getUserKey (id, key) {
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let result = await this.user.hgetAsync(id, key);
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if(result === null) result = this.client.config.defaultUserData[key];
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return result;
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};
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async setGuildKey (id, key, newValue) {
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const def = this.client.config.defaultGuildData[key];
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if (!def) return;
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if(def === newValue) {
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await this.guild.hdel(id, key); // If new value matches the default, delete the override.
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} else {
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this.client.db.guild.hset(id, key, newValue);
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await this.guild.hsetAsync(id, key, newValue);
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};
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return true;
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};
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async memberGet (id, key) {
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let result = await this.client.db.memberGetAsync(id, key);
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async setMemberKey (id, key, newValue) {
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const def = this.client.config.defaultMemberData[key];
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if(result === null) {
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result = this.client.config.defaultMemberData[key]
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if (!def) return;
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if(def === newValue) {
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await this.member.hdel(id, key);
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} else {
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await this.member.hsetAsync(id, key, newValue);
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};
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if (!result) {
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throw new Error('The key provided is invalid. Please check for typing errors.')
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}
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}
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return true;
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};
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return result;
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}
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async setUserKey (id, key, newValue) {
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const def = this.client.config.defaultUserData[key];
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async userGet (id, key) {
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let result = await this.client.db.userGetAsync(id, key);
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if (!def) return;
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if(def === newValue) {
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await this.user.hdel(id, key);
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} else {
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await this.user.hsetAsync(id, key, newValue);
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};
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if(result === null) {
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result = this.client.config.defaultUserData[key]
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return true;
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};
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if (!result) {
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throw new Error('The key provided is invalid. Please check for typing errors.')
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}
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}
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return result;
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}
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// Deletes all data associated with a guild
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async guildDelete (id) {
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// Deletes all data associated with a guild, INCLUDING MEMBER DATA
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async purgeGuild (id) {
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this.guild.del(id)
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var { keysMatching } = await generators.using(this.member)
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// eslint-disable-next-line no-unused-vars
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@ -96,27 +112,16 @@ class Redis {
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this.member.del(key)
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}
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}
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async guildDeleteKey (id, key) {
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this.guild.hdel(id, key)
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}
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// Deletes specified user. If deleteAll, also delete their member entries in guilds
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async userDelete (id, deleteAll) {
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// Deletes all data associated with a user, INCLUDING MEMBER DATA
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async purgeUser (id) {
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this.user.del(id)
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if (deleteAll) {
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var { keysMatching } = await generators.using(this.member)
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// eslint-disable-next-line no-unused-vars
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for await (const key of keysMatching('*-' + id)) {
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this.member.del(key)
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}
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var { keysMatching } = await generators.using(this.member)
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// eslint-disable-next-line no-unused-vars
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for await (const key of keysMatching('*-' + id)) {
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this.member.del(key)
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}
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}
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// Deletes member of user in specified guild
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async memberDelete (guildId, id) {
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this.member.del(guildId + '-' + id)
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}
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}
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}
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module.exports = Redis;
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