import {z} from 'zod'

export type GetApiExecutionLogsChildrenArgs = {fileName: string};

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

export const errorInfoDTO = z.object({message: z.string().optional(), code: z.string().optional(), originOfErrorPath: z.string().optional(), stackTrace: z.array(z.string()).optional()});

export const logDataDTO = z.object({id: z.string().optional(), executionId: z.string().optional(), flowId: z.string().optional(), indexPath: z.string().optional(), status: z.enum(["PENDING", "COMPLETE", "FAIL"]).optional(), type: z.enum(["EXECUTION", "FLOWCHART", "OPERATION", "LOOP", "IF", "UNKNOWN"]).optional(), connectorName: z.string().optional(), properties: z.record(z.string(), z.object({})).optional(), segment: z.record(z.string(), z.object({})).optional(), error: errorInfoDTO.optional()});

export const getApiExecutionLogsChildrenResponse = z.array(logDataDTO);

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
};

/**
 * Returns children elements metadata of the specified element by log file name
 * 
 * GET /execution/logs/children
 */
export const getApiExecutionLogsChildren = async (args: GetApiExecutionLogsChildrenArgs, options?: GetApiExecutionLogsChildrenOptions) => {
const {baseUrl = "http://localhost:9090", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.fileName != null) query.append("fileName", String(args.fileName))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/execution/logs/children${query.size > 0 ? `?${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(getApiExecutionLogsChildrenResponse, await res.json())
};