import {z} from 'zod'

export type GetApiV1WorkflowsArgs = {status?: ('draft' | 'active' | 'inactive') | undefined, limit?: number | undefined, cursor?: string | undefined, sortBy?: ('createdAt' | 'updatedAt' | 'name') | undefined, sortOrder?: ('ASC' | 'DESC') | undefined};

export type GetApiV1WorkflowsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const workflowEdgeOutput = z.object({condition: z.string().optional(), id: z.string().optional(), label: z.string().optional(), source: z.string().optional(), sourceHandle: z.string().optional(), target: z.string().optional()});

export const positionOutput = z.object({x: z.number().int().optional(), y: z.number().int().optional()});

export const workflowNodeOutput = z.object({data: z.record(z.string(), z.object({})).optional(), id: z.string().optional(), name: z.string().optional(), position: positionOutput.optional(), type: z.string().optional()});

export const workflowOutput = z.object({createdAt: z.string().optional(), description: z.string().optional(), edges: z.array(workflowEdgeOutput).optional(), id: z.string().optional(), metadata: z.record(z.string(), z.object({})).optional(), name: z.string().optional(), nodes: z.array(workflowNodeOutput).optional(), status: z.enum(["draft", "active", "inactive"]).optional(), updatedAt: z.string().optional()});

export const workflowListOutput = z.object({hasMore: z.boolean().optional(), items: z.array(workflowOutput).optional(), nextCursor: 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
};

/**
 * List Workflows
 * 
 * GET /v1/workflows
 */
export const getApiV1Workflows = async (args: GetApiV1WorkflowsArgs, options?: GetApiV1WorkflowsOptions) => {
const {baseUrl = "https://identity.sandbox.lerian.net", fetch: fetchFn = fetch} = options ?? {}

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

if (args.status != null) query.append("status", String(args.status))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.sortBy != null) query.append("sortBy", String(args.sortBy))
if (args.sortOrder != null) query.append("sortOrder", String(args.sortOrder))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/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(workflowListOutput, await res.json())
};