import {z} from 'zod'

export type GetApiV1MachinesMachineIdCommandsArgs = {after?: number | undefined, limit?: number | undefined, wait_seconds?: number | undefined};

export type GetApiV1MachinesMachineIdCommandsOptions = {baseUrl?: string | undefined, machineToken?: string | undefined, fetch?: typeof fetch | undefined};

export const externalMachineCommandEnvelope = z.object({id: z.string(), cursor: z.number().int().gte(1), protocol_version: z.literal("1"), command: z.enum(["screenshot", "detect_elements", "ocr", "click", "double_click", "click_with_modifiers", "drag", "move", "list_windows", "switch_to_window", "close_window", "minimize_window", "maximize_window", "restore_window", "arrange_windows", "move_window", "type", "key_press", "key_combo", "scroll", "terminal_connect", "terminal_execute", "terminal_read", "terminal_type", "terminal_clear", "terminal_close", "execute_command", "execute_terminal_command", "file_read", "file_exists", "directory_list", "file_write", "file_edit", "file_append", "file_delete", "directory_delete", "file_download", "file_list_downloads", "file_upload", "browser_open", "browser_connect", "browser_navigate", "browser_click", "browser_type", "browser_get_dom", "browser_get_clickables", "browser_state", "browser_info", "browser_get_context", "browser_scroll", "browser_close", "browser_screenshot", "browser_wait", "browser_list_tabs", "browser_open_tab", "browser_close_tab", "browser_switch_tab", "browser_execute"]), parameters: z.record(z.string(), z.unknown()), run_id: z.string().nullable().optional(), deadline_at: z.string(), fencing_token: z.number().int().gte(1), precondition_frame_id: z.string().nullable()});

export const externalMachineCommandsResponse = z.object({machine_id: z.string(), data: z.array(externalMachineCommandEnvelope), next_cursor: z.number().int().gte(0), fencing_token: z.number().int().gte(1), request_id: z.string()});

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
};

/**
 * Long-poll commands for an external machine
 * 
 * GET /v1/machines/{machine_id}/commands
 */
export const getApiV1MachinesMachineIdCommands = async (args: GetApiV1MachinesMachineIdCommandsArgs, options?: GetApiV1MachinesMachineIdCommandsOptions) => {
const {baseUrl = "https://coasty.ai", fetch: fetchFn = fetch, machineToken} = options ?? {}

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

if (args.after != null) query.append("after", String(args.after))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.wait_seconds != null) query.append("wait_seconds", String(args.wait_seconds))
if (machineToken !== undefined) headers.set('authorization', `Bearer ${machineToken}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/machines/${encodeURIComponent(String(args.machine_id))}/commands${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(externalMachineCommandsResponse, await res.json())
};