import type { IncomingMessage, ServerResponse } from 'node:http';

import type { ConnectionService } from '../../features/connection/index.js';

interface ServerApplyRouteDependencies {
  connection: Pick<ConnectionService, 'apply'>;
  readBody(req: IncomingMessage): Promise<Record<string, unknown>>;
  withOperation<T>(kind: string, operation: () => Promise<T>): Promise<T>;
  sendState(res: ServerResponse, extra: { serverId: string; selectedTag: string }): Promise<void>;
}

export function createServerApplyRoute(dependencies: ServerApplyRouteDependencies) {
  return {
    async handle(req: IncomingMessage, res: ServerResponse) {
      if (req.method !== 'POST' || req.url !== '/api/apply') return false;
      const { serverId = '', selectedTag = '' } = await dependencies.readBody(req);
      const result = await dependencies.withOperation(
        'apply-server',
        () => dependencies.connection.apply(serverId, selectedTag),
      );
      await dependencies.sendState(res, result);
      return true;
    },
  };
}