import {z} from 'zod'

export type GetApiApiV1CompareArgs = {cities: string, resource: 'weather' | 'air' | 'indicators' | 'demographics' | 'unemployment' | 'tourism' | 'charging-status' | 'weather-warnings', page?: number | undefined, limit?: number | undefined, offset?: number | undefined, sort?: ('city' | 'source_status') | undefined, order?: ('asc' | 'desc') | undefined, 'If-None-Match'?: string | undefined};

export type GetApiApiV1CompareOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const meta = z.object({correlation_id: z.string().nullable().optional(), source_status: z.enum(["ok", "no_data", "disabled", "not_ingested", "not_covered"]).optional(), cache_status: z.string().nullable().optional(), covered_cities: z.array(z.string()).optional(), pagination: z.object({total: z.number().int().optional(), returned: z.number().int().optional(), limit: z.number().int().nullable().optional(), offset: z.number().int().optional(), truncated: z.boolean().optional()}).optional()});

export const getApiApiV1CompareResponse = z.object({data: z.array(z.object({city: z.string(), data: z.object({}).nullable().optional(), source_status: z.enum(["ok", "disabled", "no_data", "error", "not_found"])})), meta: meta});

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
};

/**
 * Eine Ressource über mehrere Städte vergleichen
 * 
 * GET /api/v1/compare
 */
export const getApiApiV1Compare = async (args: GetApiApiV1CompareArgs, options?: GetApiApiV1CompareOptions) => {
const {baseUrl = "https://infranode.dev", fetch: fetchFn = fetch} = options ?? {}

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

if (args.cities != null) query.append("cities", String(args.cities))
if (args.resource != null) query.append("resource", String(args.resource))
if (args.page != null) query.append("page", String(args.page))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.order != null) query.append("order", String(args.order))
if (args['If-None-Match'] != null) headers.set("If-None-Match", String(args['If-None-Match']))

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/compare${query.size > 0 ? `?${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(getApiApiV1CompareResponse, await res.json())
};