import {z} from 'zod'

export type CreateApiAdaptersSparkTransfersArgs = {'X-Steward-Request-Timestamp'?: string | undefined, 'X-Steward-Request-Expires-At'?: string | undefined, 'X-Steward-Signature'?: string | undefined, 'X-Steward-Signing-Key-Id'?: string | undefined, 'Idempotency-Key'?: string | undefined, body: {agentId?: string | undefined, walletId: string, recipient: string, amountSats: string, memo?: string | undefined, estimatedUsd?: number | undefined}};

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

export const createApiAdaptersSparkTransfersResponse = z.object({ok: z.literal(true), data: z.object({unsignedIntent: z.object({signed: z.literal(false), kind: z.enum(["evm-tx", "evm-typed-data", "abstract-intent"]), chainId: z.number().int(), to: z.string(), value: z.string(), data: z.string().optional(), owner: z.string(), category: z.string(), provider: z.string(), metadata: z.record(z.string(), z.unknown()).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
};

/**
 * Build an unsigned Spark BTC transfer intent after policy/spend checks
 * 
 * POST /adapters/spark/transfers
 * 
 * Also accepts auth: bearerAuth
 */
export const createApiAdaptersSparkTransfers = async (args: CreateApiAdaptersSparkTransfersArgs, options?: CreateApiAdaptersSparkTransfersOptions) => {
const {baseUrl = "http://localhost:3200", fetch: fetchFn = fetch, tenantApiKey} = options ?? {}

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

if (args['X-Steward-Request-Timestamp'] != null) headers.set("X-Steward-Request-Timestamp", String(args['X-Steward-Request-Timestamp']))
if (args['X-Steward-Request-Expires-At'] != null) headers.set("X-Steward-Request-Expires-At", String(args['X-Steward-Request-Expires-At']))
if (args['X-Steward-Signature'] != null) headers.set("X-Steward-Signature", String(args['X-Steward-Signature']))
if (args['X-Steward-Signing-Key-Id'] != null) headers.set("X-Steward-Signing-Key-Id", String(args['X-Steward-Signing-Key-Id']))
if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (tenantApiKey !== undefined) headers.set("X-Steward-API-Key", tenantApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/adapters/spark/transfers${query.size > 0 ? `?${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(createApiAdaptersSparkTransfersResponse, await res.json())
};