import {z} from 'zod'

export type PSBTRequest = {PSBTVersion?: number | undefined, seed?: number | undefined, rbf?: boolean | undefined, version?: number | undefined, timeLock?: number | undefined, includeGlobalXPub?: boolean | undefined, reserveChangeAddress?: boolean | undefined, spendAllMatchingOutpoints?: boolean | undefined, explicitChangeAddress?: string | undefined, minConfirmations?: number | undefined, includeOnlyOutpoints?: Array<string> | undefined, excludeOutpoints?: Array<string> | undefined, minValue?: number | undefined, destinations: Array<{destination: string, amount?: number | undefined, substractFees?: boolean | undefined, sweepAll?: boolean | undefined}>, feePreference?: ({explicitFeeRate?: number | undefined, explicitFee?: number | undefined, blockTarget?: number | undefined, fallbackFeeRate?: number | undefined}) | undefined, discourageFeeSniping?: boolean | undefined, rebaseKeyPaths?: Array<{accountKey: string, accountKeyPath: string}> | undefined, disableFingerprintRandomization?: boolean | undefined, alwaysIncludeNonWitnessUTXO?: boolean | undefined, mergeOutputs?: boolean | undefined};

export type CreateApiV1CryptosCryptoCodeDerivationsDerivationSchemePsbtCreateArgs = {cryptoCode: string, derivationScheme: string, body: PSBTRequest};

export type CreateApiV1CryptosCryptoCodeDerivationsDerivationSchemePsbtCreateOptions = {baseUrl: string, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const createApiV1CryptosCryptoCodeDerivationsDerivationSchemePsbtCreateResponse = z.object({psbt: z.string().optional(), changeAddress: z.string().optional(), suggestions: z.object({shouldEnforceLowR: z.boolean().optional()}).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
};

/**
 * Create a PSBT
 * 
 * POST /v1/cryptos/{cryptoCode}/derivations/{derivationScheme}/psbt/create
 */
export const createApiV1CryptosCryptoCodeDerivationsDerivationSchemePsbtCreate = async (args: CreateApiV1CryptosCryptoCodeDerivationsDerivationSchemePsbtCreateArgs, options: CreateApiV1CryptosCryptoCodeDerivationsDerivationSchemePsbtCreateOptions) => {
const {baseUrl, fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/cryptos/${encodeURIComponent(String(args.cryptoCode))}/derivations/${encodeURIComponent(String(args.derivationScheme))}/psbt/create${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiV1CryptosCryptoCodeDerivationsDerivationSchemePsbtCreateResponse, await res.json())
};