import pkg from '@/package.json';

// OpenAPI 3.1 document for the app's public JSON API, kept in code so it can be
// served machine-readable at /api/openapi (see AGENTS.md "## API"). Must be updated
// whenever an endpoint changes.
export const openApiSpec = {
  openapi: '3.1.0',
  info: {
    title: 'Flight Ops API',
    description:
      'JSON API for Flight Ops — EU airport data for the map, plus app metadata.',
    // Sourced from package.json so it stays in sync with every version bump.
    version: pkg.version,
  },
  // Empty url = current origin (the spec is served from the same host that runs the API).
  servers: [{ url: '' }],
  paths: {
    '/api/airports': {
      get: {
        summary: 'List EU airports',
        description:
          'All fixed-wing EU airports (large, medium and seaplane bases) as a GeoJSON FeatureCollection.',
        operationId: 'listAirports',
        responses: {
          200: {
            description: 'GeoJSON FeatureCollection of EU airports',
            content: {
              'application/json': {
                schema: { $ref: '#/components/schemas/AirportFeatureCollection' },
              },
            },
          },
        },
      },
    },
    '/api/version': {
      get: {
        summary: 'App version',
        description: 'The running app version, read from package.json.',
        operationId: 'getVersion',
        responses: {
          200: {
            description: 'Current app version',
            content: {
              'application/json': {
                schema: { $ref: '#/components/schemas/AppVersion' },
              },
            },
          },
        },
      },
    },
  },
  components: {
    schemas: {
      AppVersion: {
        type: 'object',
        properties: {
          version: { type: 'string', description: 'Semver of the running build' },
        },
        required: ['version'],
      },
      AirportFeatureCollection: {
        type: 'object',
        properties: {
          type: { const: 'FeatureCollection' },
          features: {
            type: 'array',
            items: { $ref: '#/components/schemas/AirportFeature' },
          },
        },
        required: ['type', 'features'],
      },
      AirportFeature: {
        type: 'object',
        properties: {
          type: { const: 'Feature' },
          geometry: { $ref: '#/components/schemas/PointGeometry' },
          properties: { $ref: '#/components/schemas/AirportProperties' },
        },
        required: ['type', 'geometry', 'properties'],
      },
      PointGeometry: {
        type: 'object',
        properties: {
          type: { const: 'Point' },
          coordinates: {
            type: 'array',
            description: '[longitude, latitude]',
            items: { type: 'number' },
            minItems: 2,
            maxItems: 2,
          },
        },
        required: ['type', 'coordinates'],
      },
      AirportProperties: {
        type: 'object',
        properties: {
          name: { type: 'string' },
          icao: { type: 'string' },
          lat: { type: 'number' },
          lon: { type: 'number' },
        },
        required: ['name', 'icao', 'lat', 'lon'],
      },
    },
  },
};