/**
 * sh-mcp-ops application assembly.
 *
 * Wires the registry, auth provider, audit logger, and rate limiter into the
 * shared Express host (build-plan §2.2). Exported separately from `index.ts` so
 * tests can build the app without binding a port.
 */

import {
  ConsoleAuditLogger,
  InMemoryRateLimiter,
  createApp,
  type DispatchDeps,
} from '@sh-mcp/shared';
import type { Express } from 'express';

import { buildOpsRegistry } from './registry.js';
import { buildOpsAuthProvider } from './auth.js';
import { loadOpsConfig, type OpsConfig } from './config.js';

export interface BuildAppResult {
  app: Express;
  config: OpsConfig;
}

/** Build the ops server app. Pass a config to override env loading (tests). */
export async function buildOpsApp(configOverride?: OpsConfig): Promise<BuildAppResult> {
  const config = configOverride ?? loadOpsConfig();
  const registry = await buildOpsRegistry(config);
  const authProvider = buildOpsAuthProvider(config);

  const deps: DispatchDeps = {
    auditLogger: new ConsoleAuditLogger(),
    // Generous local limits; tightened per-tier in production (design.md §7.3).
    rateLimiter: new InMemoryRateLimiter({
      sessionCap: 200,
      perToolLimit: 60,
      windowMs: 60_000,
    }),
  };

  const app = createApp({
    registry,
    authProvider,
    deps,
    mcpInfo: { name: 'sh-mcp-ops', version: '0.1.0' },
    openApi: {
      info: {
        title: 'Sea Haven MCP — Ops',
        version: '0.1.0',
        description: 'Operations-tier tools (read-mostly). design.md §3.',
      },
      servers: [{ url: `http://localhost:${config.port}`, description: 'local' }],
    },
  });

  return { app, config };
}