Flight-Ops/lib/openapi.test.ts

import pkg from '@/package.json';
import { describe, expect, it } from 'vitest';
import { openApiSpec } from './openapi';

describe('OpenAPI spec', () => {
  it('documents exactly the four public endpoints', () => {
    expect(Object.keys(openApiSpec.paths).sort()).toEqual([
      '/api/airports',
      '/api/sim',
      '/api/state',
      '/api/version',
    ]);
  });

  it('keeps info.version in sync with package.json', () => {
    expect(openApiSpec.info.title).toBe('Flight Ops API');
    expect(openApiSpec.info.version).toBe(pkg.version);
  });

  it('uses an empty server url so "try it" targets the current origin', () => {
    expect(openApiSpec.servers).toEqual([{ url: '' }]);
  });

  it('describes /api/airports as a GeoJSON FeatureCollection of airport features', () => {
    const schema = openApiSpec.paths['/api/airports'].get.responses[200].content['application/json'].schema;
    expect(schema.$ref).toBe('#/components/schemas/AirportFeatureCollection');

    const fc = openApiSpec.components.schemas.AirportFeatureCollection.properties;
    expect(fc.features.items.$ref).toBe('#/components/schemas/AirportFeature');

    const feature = openApiSpec.components.schemas.AirportFeature.properties;
    expect(feature.geometry.$ref).toBe('#/components/schemas/PointGeometry');
    expect(feature.properties.$ref).toBe('#/components/schemas/AirportProperties');

    const props = openApiSpec.components.schemas.AirportProperties.properties;
    expect(Object.keys(props).sort()).toEqual(['icao', 'lat', 'lon', 'name']);
    expect(props.name.type).toBe('string');
    expect(props.icao.type).toBe('string');
    expect(props.lat.type).toBe('number');
    expect(props.lon.type).toBe('number');

    const coords = openApiSpec.components.schemas.PointGeometry.properties.coordinates;
    expect(coords.items.type).toBe('number');
  });

  it('describes /api/version as { version } with a string version', () => {
    const schema = openApiSpec.paths['/api/version'].get.responses[200].content['application/json'].schema;
    expect(schema.$ref).toBe('#/components/schemas/AppVersion');

    const props = openApiSpec.components.schemas.AppVersion.properties;
    expect(Object.keys(props)).toEqual(['version']);
    expect(props.version.type).toBe('string');
  });

  it('describes /api/state as a StateSnapshot with account, simState, planes and contracts', () => {
    const schema = openApiSpec.paths['/api/state'].get.responses[200].content['application/json'].schema;
    expect(schema.$ref).toBe('#/components/schemas/StateSnapshot');

    const snap = openApiSpec.components.schemas.StateSnapshot.properties;
    expect(Object.keys(snap).sort()).toEqual(['account', 'contracts', 'planes', 'simState']);
    expect(snap.account.$ref).toBe('#/components/schemas/AccountState');
    expect(snap.simState.$ref).toBe('#/components/schemas/SimState');
    expect(snap.planes.items.$ref).toBe('#/components/schemas/PlaneState');
    expect(snap.contracts.items.$ref).toBe('#/components/schemas/ContractState');

    const plane = openApiSpec.components.schemas.PlaneState.properties;
    expect(Object.keys(plane).sort()).toEqual([
      'contractId',
      'fuel',
      'id',
      'lat',
      'locationIcao',
      'locationName',
      'lon',
      'maxFuel',
      'model',
      'status',
    ]);

    const contract = openApiSpec.components.schemas.ContractState.properties;
    expect(Object.keys(contract).sort()).toEqual([
      'cargoCount',
      'cargoType',
      'createdSimTime',
      'deadlineSimTime',
      'destIcao',
      'destName',
      'id',
      'originIcao',
      'originName',
      'planeId',
      'reward',
      'status',
    ]);

    const sim = openApiSpec.components.schemas.SimState.properties;
    expect(Object.keys(sim).sort()).toEqual(['clockMs', 'paused', 'timeScale']);

    const contractStatus = openApiSpec.components.schemas.ContractState.properties.status;
    expect(contractStatus.enum.sort()).toEqual(['accepted', 'completed', 'expired', 'open']);
  });

  it('describes POST /api/sim as SimControlsRequest → SimState with a 400 error shape', () => {
    const post = openApiSpec.paths['/api/sim'].post;
    expect(post.operationId).toBe('setSimControls');

    const requestSchema = post.requestBody.content['application/json'].schema;
    expect(requestSchema.$ref).toBe('#/components/schemas/SimControlsRequest');

    const ok = post.responses[200].content['application/json'].schema;
    expect(ok.$ref).toBe('#/components/schemas/SimState');
    const bad = post.responses[400].content['application/json'].schema;
    expect(bad.$ref).toBe('#/components/schemas/Error');

    const controls = openApiSpec.components.schemas.SimControlsRequest.properties;
    expect(Object.keys(controls).sort()).toEqual(['paused', 'timeScale']);
    expect(controls.timeScale.type).toBe('number');
    expect(controls.timeScale.minimum).toBe(1);
    expect(controls.timeScale.maximum).toBe(60);
    expect(controls.paused.type).toBe('boolean');

    const error = openApiSpec.components.schemas.Error.properties;
    expect(Object.keys(error)).toEqual(['error']);
  });
});