import {z} from 'zod'

export type GetApiV1HistCommoditiesSymbolBarsArgs = {'Accept-Encoding': 'gzip', symbol: string, start: string, end?: string | undefined, interval?: ('1m' | '5m' | '15m' | '30m' | '1h' | '1d' | '1w' | '1mo') | undefined, order?: ('asc' | 'desc') | undefined, cursor?: string | undefined, limit?: number | undefined};

export type GetApiV1HistCommoditiesSymbolBarsOptions = {baseUrl?: string | undefined, ApiKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const bar = z.object({t: z.number().int().optional(), o: z.number().optional(), h: z.number().optional(), l: z.number().optional(), c: z.number().optional(), v: z.number().optional()});

export const barsMeta = z.object({as_of: z.string().optional(), next_cursor: z.string().optional(), symbol: z.string().optional(), interval: z.string().optional()});

export const barsResponse = z.object({data: z.array(bar).optional(), meta: barsMeta.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
};

/**
 * Historical commodity OHLC bars (gzip required)
 * 
 * GET /v1/hist/commodities/{symbol}/bars
 * 
 * Also accepts auth: ApiKeyQuery
 */
export const getApiV1HistCommoditiesSymbolBars = async (args: GetApiV1HistCommoditiesSymbolBarsArgs, options?: GetApiV1HistCommoditiesSymbolBarsOptions) => {
const {baseUrl = "https://api.sifting.io", fetch: fetchFn = fetch, ApiKeyHeader} = options ?? {}

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

if (args['Accept-Encoding'] != null) headers.set("Accept-Encoding", String(args['Accept-Encoding']))
if (args.start != null) query.append("start", String(args.start))
if (args.end != null) query.append("end", String(args.end))
if (args.interval != null) query.append("interval", String(args.interval))
if (args.order != null) query.append("order", String(args.order))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.limit != null) query.append("limit", String(args.limit))
if (ApiKeyHeader !== undefined) headers.set("X-API-Key", ApiKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/hist/commodities/${encodeURIComponent(String(args.symbol))}/bars${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(barsResponse, await res.json())
};