/**
* System JSON Configuration Loader
*
* Transitional implementation that loads configuration from system-configuration.json.
* This replaces the complex 6-source configuration system temporarily.
*/
import { ISystemConfigLoader } from '../../domain/config/ISystemConfigLoader.js';
import { IFileSystem } from '../../domain/files/interfaces.js';
import { createConsoleLogger } from '../../infrastructure/logging/logger.js';
const logger = createConsoleLogger('warn');
/**
* System JSON configuration loader implementation
*/
export class SystemJsonConfigLoader implements ISystemConfigLoader {
private config: any = null;
private loaded: boolean = false;
constructor(
private readonly fileSystem: IFileSystem,
private readonly configPath: string
) {
logger.debug('SystemJsonConfigLoader initialized', { configPath });
}
/**
* Load configuration from JSON file
*/
async load(): Promise<any> {
try {
logger.debug(`Loading configuration from ${this.configPath}`);
const content = await this.fileSystem.readFile(this.configPath);
this.config = JSON.parse(content);
this.loaded = true;
logger.info(`Configuration loaded successfully from ${this.configPath}`);
return this.config;
} catch (error) {
logger.error(`Failed to load configuration from ${this.configPath}: ${error instanceof Error ? error.message : String(error)}`);
throw new Error(`Failed to load configuration from ${this.configPath}: ${error}`);
}
}
/**
* Get configuration value by dot-notation path
*/
get(path: string): any {
if (!this.loaded || !this.config) {
throw new Error('Configuration not loaded. Call load() first.');
}
try {
return this.getByPath(this.config, path);
} catch (error) {
logger.debug('Failed to get configuration value', { path, error });
return undefined;
}
}
/**
* Get all configuration values
*/
getAll(): any {
if (!this.loaded || !this.config) {
throw new Error('Configuration not loaded. Call load() first.');
}
// Return a deep copy to prevent external modifications
return JSON.parse(JSON.stringify(this.config));
}
/**
* Check if configuration is loaded
*/
isLoaded(): boolean {
return this.loaded;
}
/**
* Reload configuration from file
*/
async reload(): Promise<any> {
logger.debug('Reloading configuration');
this.loaded = false;
this.config = null;
return this.load();
}
/**
* Navigate object by dot-notation path
*/
private getByPath(obj: any, path: string): any {
const keys = path.split('.');
let current = obj;
for (const key of keys) {
if (current === null || current === undefined) {
return undefined;
}
// Handle array notation like 'items[0]'
const arrayMatch = key.match(/^(\w+)\[(\d+)\]$/);
if (arrayMatch) {
const [, prop, index] = arrayMatch;
if (!prop || !index) return undefined;
current = current?.[prop];
if (Array.isArray(current)) {
current = current[parseInt(index, 10)];
} else {
return undefined;
}
} else {
current = current?.[key];
}
}
return current;
}
}
