@withpica/mcp-server/dist/config.js

MCP Server for withPICA — enables AI assistants to interact with your withPICA music catalog

// Copyright (c) 2025-2026 Withpica Ltd. All rights reserved.
/**
 * MCP Server Configuration
 */
import { readCredentials, getDefaultCredentialsPath, } from "@withpica/mcp-utils";
import { createRequire } from "module";
// Single TS-side source of truth for the customer MCP server version,
// AUTO-DERIVED from package.json so the two cannot drift. Past drift
// incidents that motivated this: 2026-04-08 (banner 2.5.0 vs npm 2.6.1),
// 2026-04-19 ADR-181 Phase 2 (banner 2.6.2 vs npm 2.22.0), 2026-04-24
// (publish blocked TWICE by stale literal at 2.27.0 → 2.28.0 bumps).
//
// Implementation note: uses `createRequire` rather than the import-
// attribute syntax (`import pkg from "..." with { type: "json" }`)
// because the package's tsconfig.json sets `module: "Node16"`, which
// doesn't support import attributes. createRequire works in any
// module setting and resolves ../package.json relative to the
// compiled dist/config.js file at runtime — same path semantics, no
// tsconfig change needed.
//
// scripts/lint-mcp-tools.ts version-sync check now accepts both this
// derived form (preferred) and the legacy literal hardcode (still
// version-matched against package.json). Surfaces on stdio via the
// boot banner + MCP `initialize` handshake (loadConfig below) and on
// HTTP via app/api/mcp/route.ts, which imports this const from
// mcp-server/dist/config.js. ADR-180 Phase 2 collapsed the
// duplication; ADR-196 Phase 4b makes it drift-proof.
const pkg = createRequire(import.meta.url)("../package.json");
export const VERSION = pkg.version;
export function loadConfig() {
    const credentialsPath = process.env.PICA_CREDENTIALS_PATH || getDefaultCredentialsPath();
    const debug = process.env.DEBUG === "true" || process.env.DEBUG === "1";
    // Priority 1: env var
    let picaApiKey = process.env.PICA_API_KEY || null;
    // Priority 2: credentials file
    if (!picaApiKey) {
        const creds = readCredentials(credentialsPath);
        if (creds) {
            picaApiKey = creds.api_key;
            if (debug) {
                console.error(`[MCP Server] Loaded credentials for ${creds.email}`);
            }
        }
    }
    const lobbyMode = !picaApiKey;
    const discoveryMode = process.env.MCP_LAYERED_DISCOVERY === "1";
    if (lobbyMode && debug) {
        console.error("[MCP Server] No API key found — starting in lobby mode");
    }
    if (discoveryMode && debug) {
        console.error("[MCP Server] Layered discovery mode enabled");
    }
    return {
        picaApiKey,
        picaApiUrl: process.env.PICA_API_URL || "https://withpica.com/api",
        serverName: "pica-mcp-server",
        version: VERSION,
        debug,
        lobbyMode,
        credentialsPath,
        discoveryMode,
    };
}
export function validateConfig(config) {
    if (!config.lobbyMode &&
        (!config.picaApiKey || config.picaApiKey.trim() === "")) {
        throw new Error("PICA API key cannot be empty when not in lobby mode");
    }
    if (!config.picaApiUrl || !config.picaApiUrl.startsWith("http")) {
        throw new Error("Invalid PICA API URL");
    }
}
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