import {z} from 'zod'

export type GetApiV2FemaRegionsArgs = {$filter?: string | undefined, $top?: number | undefined, $skip?: number | undefined, $count?: boolean | undefined, $filename?: string | undefined, $metadata?: boolean | undefined, $gzip?: boolean | undefined, $orderby?: (Array<'id' | 'id desc' | 'name' | 'name desc' | 'region' | 'region desc' | 'address' | 'address desc' | 'city' | 'city desc' | 'state' | 'state desc' | 'zipCode' | 'zipCode desc' | 'states' | 'states desc' | 'loc' | 'loc desc' | 'regionGeometry' | 'regionGeometry desc' | 'lastRefresh' | 'lastRefresh desc' | 'hash' | 'hash desc'>) | undefined, $select?: (Array<'id' | 'name' | 'region' | 'address' | 'city' | 'state' | 'zipCode' | 'states' | 'loc' | 'regionGeometry' | 'lastRefresh' | 'hash'>) | undefined, $format?: ('json' | 'jsonl' | 'csv' | 'geojson' | 'jsona' | 'parquet' | 'esrigeojson') | undefined};

export type GetApiV2FemaRegionsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const metadata = z.object({skip: z.number().nullable().optional(), filter: z.string().nullable().optional(), orderBy: z.string().nullable().optional(), select: z.string().nullable().optional(), rundate: z.string().nullable().optional(), top: z.number().nullable().optional(), format: z.string().nullable().optional(), metadata: z.boolean().nullable().optional(), entityname: z.string().optional(), version: z.string().optional(), url: z.string().optional(), count: z.number().nullable().optional()});

export const v2FemaRegions = z.object({id: z.string().optional(), name: z.string().optional(), region: z.number().optional(), address: z.number().optional(), city: z.number().optional(), state: z.number().optional(), zipCode: z.number().optional(), states: z.array(z.object({})).optional(), loc: z.object({}).optional(), regionGeometry: z.object({}).optional(), lastRefresh: z.string().optional(), hash: z.string().optional()});

export const getApiV2FemaRegionsResponse = z.object({metadata: metadata.optional(), FemaRegions: z.array(v2FemaRegions).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
};

/**
 * FEMA Regions
 * 
 * GET /v2/FemaRegions
 */
export const getApiV2FemaRegions = async (args: GetApiV2FemaRegionsArgs, options?: GetApiV2FemaRegionsOptions) => {
const {baseUrl = "https://www.fema.gov/api/open", fetch: fetchFn = fetch} = options ?? {}

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

if (args.$filter != null) query.append("$filter", String(args.$filter))
if (args.$top != null) query.append("$top", String(args.$top))
if (args.$skip != null) query.append("$skip", String(args.$skip))
if (args.$count != null) query.append("$count", String(args.$count))
if (args.$filename != null) query.append("$filename", String(args.$filename))
if (args.$metadata != null) query.append("$metadata", String(args.$metadata))
if (args.$gzip != null) query.append("$gzip", String(args.$gzip))
for (const item of args.$orderby ?? []) query.append("$orderby", String(item))
for (const item of args.$select ?? []) query.append("$select", String(item))
if (args.$format != null) query.append("$format", String(args.$format))

const url = `${baseUrl.replace(/\/+$/, '')}/v2/FemaRegions${query.size > 0 ? `?${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(getApiV2FemaRegionsResponse, await res.json())
};