import {z} from 'zod'

export type GetApiStockUsaSpendingArgs = {symbol: string, from: string, to: string};

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

export const usaSpending = z.object({symbol: z.string().optional(), recipientName: z.string().optional(), recipientParentName: z.string().optional(), awardDescription: z.string().optional(), country: z.string().optional(), actionDate: z.string().optional(), totalValue: z.number().optional(), performanceStartDate: z.string().optional(), performanceEndDate: z.string().optional(), awardingAgencyName: z.string().optional(), awardingSubAgencyName: z.string().optional(), awardingOfficeName: z.string().optional(), performanceCountry: z.string().optional(), performanceCity: z.string().optional(), performanceCounty: z.string().optional(), performanceState: z.string().optional(), performanceZipCode: z.string().optional(), performanceCongressionalDistrict: z.string().optional(), naicsCode: z.string().optional(), permalink: z.string().optional()});

export const usaSpendingResult = z.object({symbol: z.string().optional(), data: z.array(usaSpending).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
};

/**
 * USA Spending
 * 
 * GET /stock/usa-spending
 */
export const getApiStockUsaSpending = async (args: GetApiStockUsaSpendingArgs, options?: GetApiStockUsaSpendingOptions) => {
const {baseUrl = "https://finnhub.io/api/v1", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.symbol != null) query.append("symbol", String(args.symbol))
if (args.from != null) query.append("from", String(args.from))
if (args.to != null) query.append("to", String(args.to))
if (apiKey !== undefined) query.set("token", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/stock/usa-spending${query.size > 0 ? `?${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(usaSpendingResult, await res.json())
};