import {z} from 'zod'

export type GetApiLocationsArgs = {filters?: ({name: string, id?: string | undefined} | {name?: string | undefined, id: string}) | undefined, per_page?: number | undefined, cursor?: string | undefined, sort?: string | undefined};

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

export const getApiLocationsResponse = z.object({data: z.array(z.object({id: z.string().optional(), name: z.string().optional(), aoiSize: z.number().optional(), is_deleted: z.boolean().optional()})).optional(), links: z.array(z.object({description: z.string().optional(), uri: z.string().optional()})).optional(), pagination: z.object({cursor: z.object({self: z.string().optional(), next: z.string().optional()}).optional(), per_page: z.number().optional(), sort: z.string().optional()}).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
};

/**
 * List
 * 
 * GET /locations
 */
export const getApiLocations = async (args: GetApiLocationsArgs, options?: GetApiLocationsOptions) => {
const {baseUrl = "https://api.skywatch.co/earthcache", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.filters != null) query.append("filters", String(args.filters))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.sort != null) query.append("sort", String(args.sort))
if (ApiKey !== undefined) headers.set("x-api-key", ApiKey)

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