import {z} from 'zod'

export type GetApiAirportDatabaseArgs = {key: string, codeIataAirport?: string | undefined, codeIso2Country?: string | undefined};

export type GetApiAirportDatabaseOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const airportsResponse = z.object({GMT: z.string().optional(), airportId: z.number().optional(), codeIataAirport: z.string().optional(), codeIataCity: z.string().optional(), codeIcaoAirport: z.string().optional(), codeIso2Country: z.string().optional(), geonameId: z.string().optional(), latitudeAirport: z.number().optional(), longitudeAirport: z.number().optional(), nameAirport: z.string().optional(), nameCountry: z.string().optional(), phone: z.string().optional(), timezone: z.string().optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Worldwide airport database in JSON
 * 
 * GET /airportDatabase
 */
export const getApiAirportDatabase = async (args: GetApiAirportDatabaseArgs, options?: GetApiAirportDatabaseOptions) => {
const {baseUrl = "https://aviation-edge.com/v2/public", fetch: fetchFn = fetch, apiKey} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.key != null) query.append("key", String(args.key))
if (args.codeIataAirport != null) query.append("codeIataAirport", String(args.codeIataAirport))
if (args.codeIso2Country != null) query.append("codeIso2Country", String(args.codeIso2Country))
if (apiKey !== undefined) query.set("key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/airportDatabase${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(airportsResponse, await res.json())
};