import {z} from 'zod'

export type CreateApiAdaptersBridgeBuildArgs = {'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, owner: string, quote: {provider: string, quoteId: string, fromChainId: number, toChainId: number, fromToken?: ({address: string, symbol?: string | undefined, decimals?: number | undefined}) | undefined, toToken?: ({address: string, symbol?: string | undefined, decimals?: number | undefined}) | undefined, amountIn: string, amountOut: string, minAmountOut?: string | undefined, feeAmount?: string | undefined, recipient?: string | undefined, route?: Array<{[key: string]: unknown}> | undefined, slippageBps?: number | undefined, expiresAt?: number | undefined, direction?: string | undefined, executionMode?: ('unsigned-transaction' | 'external-handoff') | undefined, handoffUrl?: string | undefined, feeBps?: number | undefined, feeScope?: ('final' | 'global-estimate' | 'not-applicable') | undefined, feeObservedSlot?: number | undefined, feeObservedAt?: number | undefined, notices?: Array<string> | undefined}, estimatedUsd?: number | undefined}};

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

export const createApiAdaptersBridgeBuildResponse = z.object({ok: z.literal(true), data: z.union([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()})}), z.object({handoff: z.object({kind: z.literal("external-handoff"), category: z.literal("bridge"), provider: z.string(), quoteId: z.string(), direction: z.string(), url: z.string(), fromChainId: z.number().int(), toChainId: z.number().int(), amountIn: z.string(), estimatedUsd: z.number().gt(0), recipient: z.string(), recipientSensitive: z.boolean().optional(), expiresAt: z.number().int(), feeBps: z.number().int().gte(0).lte(10000), feeScope: z.enum(["global-estimate", "owner-observed", "not-applicable"]), feeObservedSlot: z.number().int().gte(0).optional(), feeObservedAt: z.number().int().gte(0), notices: z.array(z.string())})})])});

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 bridge intent after policy/spend checks
 * 
 * POST /adapters/bridge/build
 * 
 * Also accepts auth: bearerAuth
 */
export const createApiAdaptersBridgeBuild = async (args: CreateApiAdaptersBridgeBuildArgs, options?: CreateApiAdaptersBridgeBuildOptions) => {
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/bridge/build${query.size > 0 ? `?${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(createApiAdaptersBridgeBuildResponse, await res.json())
};