import {z} from 'zod'

export type GetApiTxcxnArgs = {west: unknown, south: unknown, east: unknown, north: unknown, skip: unknown, take: unknown};

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

export const telexConnection = z.object({id: z.string(), isActive: z.boolean(), firstContact: z.string(), lastContact: z.string(), flight: z.string(), location: z.object({x: z.number(), y: z.number()}), trueAltitude: z.number(), heading: z.number().gte(0).lte(360), freetextEnabled: z.boolean(), aircraftType: z.string(), origin: z.string().optional(), destination: z.string().optional()});

export const paginatedTelexConnectionDto = z.object({results: z.array(telexConnection), count: z.number(), total: z.number()});

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
};

/**
 * GET /txcxn
 */
export const getApiTxcxn = async (args: GetApiTxcxnArgs, options: GetApiTxcxnOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.west != null) query.append("west", String(args.west))
if (args.south != null) query.append("south", String(args.south))
if (args.east != null) query.append("east", String(args.east))
if (args.north != null) query.append("north", String(args.north))
if (args.skip != null) query.append("skip", String(args.skip))
if (args.take != null) query.append("take", String(args.take))

const url = `${baseUrl.replace(/\/+$/, '')}/txcxn${query.size > 0 ? `?${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(paginatedTelexConnectionDto, await res.json())
};