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

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