import { homedir } from "node:os";
import { join } from "node:path";
import { type Config } from "./types.js";
interface CliArgs {
camofoxUrl?: string;
apiKey?: string;
defaultUserId?: string;
profilesDir?: string;
timeout?: number;
autoSave?: boolean;
transport?: "stdio" | "http";
httpPort?: number;
httpHost?: string;
httpRateLimit?: number;
}
function parseBoolFlag(raw: string): boolean | undefined {
const normalized = raw.trim().toLowerCase();
if (["true", "1", "yes", "y", "on"].includes(normalized)) return true;
if (["false", "0", "no", "n", "off"].includes(normalized)) return false;
return undefined;
}
function isFalsy(val: string | undefined): boolean {
if (!val) return false;
return ["false", "0", "no", "off"].includes(val.trim().toLowerCase());
}
function parseCliArgs(argv: string[]): CliArgs {
const args: CliArgs = {};
for (let i = 0; i < argv.length; i += 1) {
const current = argv[i];
const next = argv[i + 1];
if ((current === "--camofox-url" || current === "--url") && next) {
args.camofoxUrl = next;
i += 1;
continue;
}
if ((current === "--api-key" || current === "--key") && next) {
args.apiKey = next;
i += 1;
continue;
}
if ((current === "--default-user-id" || current === "--user-id") && next) {
args.defaultUserId = next;
i += 1;
continue;
}
if (current === "--profiles-dir" && next) {
args.profilesDir = next;
i += 1;
continue;
}
if (current === "--timeout" && next) {
const timeout = Number.parseInt(next, 10);
if (!Number.isNaN(timeout) && timeout > 0) {
args.timeout = timeout;
}
i += 1;
continue;
}
if (current === "--auto-save") {
// Allow: --auto-save (implies true) OR --auto-save false
if (next && !next.startsWith("--")) {
const parsed = parseBoolFlag(next);
if (parsed !== undefined) {
args.autoSave = parsed;
i += 1;
}
} else {
args.autoSave = true;
}
continue;
}
if (current === "--transport" && next) {
const transport = next.trim().toLowerCase();
if (transport === "stdio" || transport === "http") {
args.transport = transport;
}
i += 1;
continue;
}
if (current === "--http-port" && next) {
const httpPort = Number.parseInt(next, 10);
if (!Number.isNaN(httpPort) && httpPort > 0) {
args.httpPort = httpPort;
}
i += 1;
continue;
}
if (current === "--http-host" && next) {
args.httpHost = next;
i += 1;
continue;
}
if (current === "--http-rate-limit" && next) {
const httpRateLimit = Number.parseInt(next, 10);
if (!Number.isNaN(httpRateLimit) && httpRateLimit > 0) {
args.httpRateLimit = httpRateLimit;
}
i += 1;
continue;
}
}
return args;
}
export function loadConfig(argv = process.argv.slice(2), env = process.env): Config {
const cli = parseCliArgs(argv);
const timeoutFromEnv = Number.parseInt(env.CAMOFOX_TIMEOUT ?? "", 10);
const transportFromEnv = env.CAMOFOX_TRANSPORT?.trim().toLowerCase();
const httpPortFromEnv = Number.parseInt(env.CAMOFOX_HTTP_PORT ?? "", 10);
const httpRateLimitFromEnv = Number.parseInt(env.CAMOFOX_HTTP_RATE_LIMIT ?? "", 10);
const envTransport =
transportFromEnv === "stdio" || transportFromEnv === "http" ? transportFromEnv : undefined;
return {
camofoxUrl: cli.camofoxUrl ?? env.CAMOFOX_URL ?? "http://localhost:9377",
apiKey: cli.apiKey ?? env.CAMOFOX_API_KEY,
defaultUserId: cli.defaultUserId ?? env.CAMOFOX_DEFAULT_USER_ID ?? "default",
profilesDir: cli.profilesDir ?? env.CAMOFOX_PROFILES_DIR ?? join(homedir(), ".camofox-mcp", "profiles"),
timeout: cli.timeout ?? (Number.isNaN(timeoutFromEnv) ? 30_000 : timeoutFromEnv),
autoSave: cli.autoSave ?? !isFalsy(env.CAMOFOX_AUTO_SAVE),
transport: cli.transport ?? envTransport ?? "stdio",
httpPort: cli.httpPort ?? (Number.isNaN(httpPortFromEnv) ? 3000 : httpPortFromEnv),
httpHost: cli.httpHost ?? env.CAMOFOX_HTTP_HOST ?? "127.0.0.1",
httpRateLimit: cli.httpRateLimit ?? (Number.isNaN(httpRateLimitFromEnv) ? 60 : httpRateLimitFromEnv)
};
}
