/**
* TonMCP Configuration
* Loads optional config from ~/.tonmcp.json
*/
import * as fs from 'fs';
import * as path from 'path';
import * as os from 'os';
export interface TonMCPConfig {
default_shell: 'pwsh' | 'powershell' | 'cmd';
default_cwd: string;
search_tool: 'ripgrep' | 'powershell';
max_file_read_mb: number;
max_search_results: number;
}
const DEFAULT_CONFIG: TonMCPConfig = {
default_shell: 'pwsh',
default_cwd: os.homedir(),
search_tool: 'ripgrep',
max_file_read_mb: 10,
max_search_results: 200,
};
let cachedConfig: TonMCPConfig | null = null;
/**
* Load configuration from ~/.tonmcp.json
* Falls back to defaults if file doesn't exist or is invalid
*/
export function loadConfig(): TonMCPConfig {
if (cachedConfig) {
return cachedConfig;
}
const configPath = path.join(os.homedir(), '.tonmcp.json');
try {
if (fs.existsSync(configPath)) {
const content = fs.readFileSync(configPath, 'utf-8');
const userConfig = JSON.parse(content) as Partial<TonMCPConfig>;
cachedConfig = {
...DEFAULT_CONFIG,
...userConfig,
};
} else {
cachedConfig = { ...DEFAULT_CONFIG };
}
} catch {
// Invalid JSON or read error - use defaults
cachedConfig = { ...DEFAULT_CONFIG };
}
return cachedConfig;
}
/**
* Get a specific config value
*/
export function getConfig<K extends keyof TonMCPConfig>(key: K): TonMCPConfig[K] {
return loadConfig()[key];
}
/**
* Reset config cache (useful for testing)
*/
export function resetConfigCache(): void {
cachedConfig = null;
}
