import {z} from 'zod'

export type CreateApiV20FlowsFlowIdChartNodesOutputGenerateArgs = {Accept?: ('application/json' | 'application/hal+json' | 'application/xml' | 'text/xml' | 'text/csv') | undefined, flowId: string, body: {localeId?: string | undefined, userText?: string | undefined, outputType?: ('text' | 'adaptiveCard') | undefined, lastOutput?: string | undefined, generateContentLimit?: number | undefined}};

export type CreateApiV20FlowsFlowIdChartNodesOutputGenerateOptions = {baseUrl?: string | undefined, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiV20FlowsFlowIdChartNodesOutputGenerateResponse = z.union([z.object({output: z.object({type: z.string().optional(), body: z.array(z.object({})).optional(), actions: z.array(z.object({})).optional(), version: z.string().optional(), speak: z.string().optional()}).optional(), outputType: z.string().optional()}), z.object({output: z.array(z.string()).optional(), outputType: 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
};

/**
 * Generate Output for a Node
 * 
 * POST /v2.0/flows/{flowId}/chart/nodes/output/generate
 * 
 * Also accepts auth: APIKeyQueryParam, CXoneTokenHeader, OAuth2
 */
export const createApiV20FlowsFlowIdChartNodesOutputGenerate = async (args: CreateApiV20FlowsFlowIdChartNodesOutputGenerateArgs, options?: CreateApiV20FlowsFlowIdChartNodesOutputGenerateOptions) => {
const {baseUrl = "https://api-trial.cognigy.ai/testing", fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.Accept != null) headers.set("Accept", String(args.Accept))
if (APIKeyHeader !== undefined) headers.set("X-API-Key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v2.0/flows/${encodeURIComponent(String(args.flowId))}/chart/nodes/output/generate${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(createApiV20FlowsFlowIdChartNodesOutputGenerateResponse, await res.json())
};