telme/lib/config/config.ts

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3 KiB
TypeScript

import * as fs from 'fs';
import ConfigFileMissingError from '../errors/config_file_missing.error';
import ConfigProfileError from '../errors/config_profile_missing.error';
import ConfigFileFormatError from '../errors/config_file_format.error';
import Config004 from './config.0.0.4';
const HOME = require('os').homedir();
const CONFIG_FILE_NAME = '.telmeconfig';
const FILEPATH = `${HOME}/${CONFIG_FILE_NAME}`;
export enum EConfigVersions {
V004 = '0.0.4',
V005 = '0.0.5'
}
const CURRENT_CONFIG_VERSION = EConfigVersions.V005;
export default class Config {
static APP_NAME = 'telme';
static CURRENT_CONFIG_VERSION = CURRENT_CONFIG_VERSION;
static DEFAULT_TASK_MESSAGE_TEMPLATE = '*Task:*\n\n```sh\n%cmd%\n```\nHas finished.\n*Errors*:\n %errors%';
private config: IConfig;
constructor() {
const file = this.readConfigFile();
const parsed = this.parseConfig(file);
if (parsed.originalConfigVersion != CURRENT_CONFIG_VERSION) {
this.writeConfigToFile(parsed.config);
}
this.config = parsed.config;
}
static getConfig(profile: string = 'default'): IProfileConfig {
return singleton.getConfig(profile);
}
static generateProfileTemplate(): IProfileConfig {
return {
chat_id: null,
task_message_template: Config.DEFAULT_TASK_MESSAGE_TEMPLATE,
bot_token: null
}
}
static getFullConfig(): IConfig {
return singleton.config;
}
static async writeConfigToFile(config: IConfig) {
return singleton.writeConfigToFile(config);
}
private getConfig(profile: string): IProfileConfig {
if (!this.config.profiles[profile]) {
throw new ConfigProfileError(`No profile named ${profile} found.`);
}
return this.config.profiles[profile];
}
private readConfigFile(): Buffer {
try {
const file = fs.readFileSync(FILEPATH);
return file;
} catch (e) {
throw new ConfigFileMissingError('');
}
}
private parseConfig(file: Buffer): { config: IConfig, originalConfigVersion: EConfigVersions } {
try {
const config = JSON.parse(file.toString());
const confVersion: EConfigVersions = config.version || EConfigVersions.V004;
switch (confVersion) {
case EConfigVersions.V004:
return { config: Config004.parse(config), originalConfigVersion: EConfigVersions.V004 };
// Using switch to easily add more config version. If needed...
default:
return { config, originalConfigVersion: config.version };
}
} catch (e) {
throw new ConfigFileFormatError('');
}
}
private writeConfigToFile(config: IConfig): boolean {
try {
fs.writeFileSync(FILEPATH, JSON.stringify(config, null, 2));
console.log(`created config file at ${FILEPATH}`);
return true;
} catch (e) {
return false;
}
}
}
const singleton = new Config();
export interface IProfileConfig {
chat_id: string;
bot_token: string;
task_message_template: string;
}
export interface IConfig {
version: EConfigVersions,
profiles: {
[key: string]: IProfileConfig;
}
}