import {z} from 'zod'

export type GetApiV2WorkflowsArgs = {api_key: string, 'X-Frankie-CustomerID': string, 'X-Frankie-CustomerChildID'?: string | undefined, 'X-Frankie-Channel'?: string | undefined, 'X-Frankie-Username'?: string | undefined, serviceName?: string | undefined, include?: Array<'workflowDefinition'> | undefined};

export type GetApiV2WorkflowsOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const requestID = z.string();

export const workflowLifecyclePhaseEnum = z.enum(["ONBOARDING", "MONITORING", "OTHER"]);

export const monitoringType = z.enum(["AML", "ACTIVITY"]);

export const workflowStepType = z.enum(["BLOCKLIST", "DUPLICATE", "DECISION", "BRANCH", "MONITOR_TOGGLE", "OTHER", "KYC", "AML", "IDV", "START", "FINISH"]);

export const workflowStep = z.object({name: z.string().optional(), description: z.string().optional(), version: z.string().optional(), type: workflowStepType.optional(), configuration: z.object({}).optional(), dependsOn: z.array(z.string()).optional()});

export const workflowDefinition = z.object({definitionUpdatedAt: z.string().optional(), version: z.string().optional(), steps: z.array(workflowStep).optional()});

export const workflowLookup = z.object({serviceName: z.string().optional(), workflowId: z.string().optional(), workflowName: z.string().optional(), type: z.string().optional(), lifecyclePhase: workflowLifecyclePhaseEnum.optional(), monitoringTypes: z.array(monitoringType).optional(), definition: workflowDefinition.optional()});

export const getApiV2WorkflowsResponse = z.object({requestId: requestID.optional(), workflows: z.array(workflowLookup).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
};

/**
 * Get a list of executable workflows
 * 
 * GET /v2/workflows
 * 
 * Also accepts auth: jwt
 */
export const getApiV2Workflows = async (args: GetApiV2WorkflowsArgs, options?: GetApiV2WorkflowsOptions) => {
const {baseUrl = "https://api.uat.frankie.one", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.api_key != null) headers.set("api_key", String(args.api_key))
if (args['X-Frankie-CustomerID'] != null) headers.set("X-Frankie-CustomerID", String(args['X-Frankie-CustomerID']))
if (args['X-Frankie-CustomerChildID'] != null) headers.set("X-Frankie-CustomerChildID", String(args['X-Frankie-CustomerChildID']))
if (args['X-Frankie-Channel'] != null) headers.set("X-Frankie-Channel", String(args['X-Frankie-Channel']))
if (args['X-Frankie-Username'] != null) headers.set("X-Frankie-Username", String(args['X-Frankie-Username']))
if (args.serviceName != null) query.append("serviceName", String(args.serviceName))
if (args.include != null) query.append("include", args.include.join(','))
if (ApiKey !== undefined) headers.set("api_key", ApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/workflows${query.size > 0 ? `?${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(getApiV2WorkflowsResponse, await res.json())
};