import {z} from 'zod'

export type GetApiV1SymbolsArgs = {asset_class?: string | undefined, venue?: string | undefined, q?: string | undefined, cursor?: string | undefined, limit?: number | undefined};

export type GetApiV1SymbolsOptions = {baseUrl?: string | undefined, ApiKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const catalogInstrument = z.object({slug: z.string(), asset_class: z.enum(["stocks", "crypto", "dex", "forex", "commodities"]), venue: z.string(), market_id: z.string().optional(), symbol: z.string(), name: z.string().optional(), base_asset: z.string().optional(), quote_asset: z.string().optional(), currency: z.string().optional(), status: z.enum(["active", "inactive", "delisted"]), details: z.record(z.string(), z.unknown())});

export const symbolCatalogListResponse = z.object({data: z.array(catalogInstrument), meta: z.object({as_of: z.string(), count: z.number().int().gte(0), next_cursor: z.string().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 active instruments
 * 
 * GET /v1/symbols
 * 
 * Also accepts auth: ApiKeyQuery
 */
export const getApiV1Symbols = async (args: GetApiV1SymbolsArgs, options?: GetApiV1SymbolsOptions) => {
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.asset_class != null) query.append("asset_class", String(args.asset_class))
if (args.venue != null) query.append("venue", String(args.venue))
if (args.q != null) query.append("q", String(args.q))
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/symbols${query.size > 0 ? `?${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(symbolCatalogListResponse, await res.json())
};