/**
* Configuration loader for mcpGraph
*/
import { parseYamlConfig } from "./serializer.js";
import type { McpGraphConfig, ServerConfig, ServerConfigWithSource } from "../types/config.js";
/**
* Load graph configuration, optionally merging mcpServers from an MCP JSON file
* @param graphFilePath - Path to the YAML graph configuration file
* @param mcpServersFromFile - Optional mcpServers loaded from an MCP JSON file
* @returns McpGraphConfig with merged mcpServers (graph servers override mcp file servers)
* Each server config is tagged with _source: 'graph' | 'external' to track origin
*/
export function loadConfig(
graphFilePath: string,
mcpServersFromFile?: Record<string, ServerConfig>
): McpGraphConfig {
const config = parseYamlConfig(graphFilePath);
// Tag servers from graph file with _source: 'graph'
if (config.mcpServers) {
for (const serverConfig of Object.values(config.mcpServers)) {
serverConfig._source = 'graph';
}
}
// Merge mcpServers: mcp file servers first, then graph servers (graph overrides)
if (mcpServersFromFile) {
if (!config.mcpServers) {
config.mcpServers = {};
}
// Add external servers first (they'll be overridden by graph servers if names match)
for (const [name, serverConfig] of Object.entries(mcpServersFromFile)) {
if (!(name in config.mcpServers)) {
config.mcpServers[name] = serverConfig;
config.mcpServers[name]._source = 'external';
}
}
}
return config;
}
