import { readFile, writeFile, mkdir } from "fs/promises";
import { dirname } from "path";
export async function readJsonConfig(filePath: string): Promise<Record<string, unknown>> {
let raw: string;
try {
raw = await readFile(filePath, "utf-8");
} catch {
return {};
}
raw = raw.trim();
if (!raw) return {};
return JSON.parse(raw) as Record<string, unknown>;
}
export function mergeServerEntry(
existing: Record<string, unknown>,
configKey: string,
serverName: string,
entry: Record<string, unknown>
): { config: Record<string, unknown>; alreadyExists: boolean } {
const section = (existing[configKey] as Record<string, unknown> | undefined) ?? {};
if (serverName in section) {
return { config: existing, alreadyExists: true };
}
return {
config: {
...existing,
[configKey]: {
...section,
[serverName]: entry,
},
},
alreadyExists: false,
};
}
export function mergeInstructions(
config: Record<string, unknown>,
glob: string
): Record<string, unknown> {
const instructions = (config.instructions as string[] | undefined) ?? [];
if (instructions.includes(glob)) return config;
return { ...config, instructions: [...instructions, glob] };
}
export async function writeJsonConfig(
filePath: string,
config: Record<string, unknown>
): Promise<void> {
await mkdir(dirname(filePath), { recursive: true });
await writeFile(filePath, JSON.stringify(config, null, 2) + "\n", "utf-8");
}
