import {z} from 'zod'

export type TaskResource = 'edge' | 'volume' | 'cloud_credential' | 'appliance_support';

export type GetApiTasksArgs = {resource?: (TaskResource | null) | undefined, action?: (string | null) | undefined, stack_id?: (string | null) | undefined, latest_per_resource?: boolean | undefined};

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

export const taskExecutor = z.literal("edge");

export const taskInitiator = z.enum(["portal", "edge"]);

export const taskState = z.enum(["in_progress", "completed", "failed"]);

export const taskSummaryDto = z.object({id: z.string(), created_at: z.string(), resource: z.string(), resource_id: z.union([z.string(), z.string()]).nullable().optional(), stack_id: z.string().nullable().optional(), action: z.string(), executor: taskExecutor, executor_id: z.string().nullable().optional(), initiated_by: taskInitiator, initiator_id: z.string().nullable().optional(), activity_log_id: z.string().nullable().optional(), reason: z.string().nullable().optional(), state: taskState, last_updated_at: z.string(), user_acknowledged_at: z.string().nullable().optional(), deletion_time: z.string().nullable().optional()});

export const tasksSummaryDto = z.object({items: z.array(taskSummaryDto)});

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 Tasks
 * 
 * GET /tasks
 */
export const getApiTasks = async (args: GetApiTasksArgs, options?: GetApiTasksOptions) => {
const {baseUrl = "https://am1.portal.api.nasuni.com", fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args.resource != null) query.append("resource", String(args.resource))
if (args.action != null) query.append("action", String(args.action))
if (args.stack_id != null) query.append("stack_id", String(args.stack_id))
if (args.latest_per_resource != null) query.append("latest_per_resource", String(args.latest_per_resource))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

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