import {z} from 'zod'

export type GetApiApiV2FleetAgentsArgs = {page_number?: number | undefined, page_size?: number | undefined, filter?: string | undefined, tags?: string | undefined, sort_attribute?: string | undefined, sort_descending?: boolean | undefined};

export type GetApiApiV2FleetAgentsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const fleetAgentV2AttributesInstrumentationStatus = z.enum(["success", "failure"]);

export const fleetAgentAttributesTagsItems = z.object({key: z.string().optional(), value: z.string().optional()});

export const fleetAgentV2Attributes = z.object({agent_version: z.string().optional(), api_key_name: z.string().optional(), api_key_uuid: z.string().optional(), cloud_provider: z.string().optional(), cluster_name: z.string().optional(), datadog_data_center: z.string().optional(), ecs_fargate_cluster_name: z.string().optional(), ecs_fargate_task_arn: z.string().optional(), enabled_products: z.array(z.string()).optional(), env: z.array(z.string()).optional(), first_seen_at: z.number().int().optional(), fleet_policies: z.array(z.string()).optional(), hostname: z.string().optional(), instrumentation_error_counts: z.number().int().optional(), instrumentation_status: fleetAgentV2AttributesInstrumentationStatus.optional(), integrations: z.array(z.string()).optional(), ip_addresses: z.array(z.string()).optional(), is_single_step_instrumentation_enabled: z.boolean().optional(), last_restart_at: z.number().int().optional(), os: z.string().optional(), otel_collector_deployment_types: z.array(z.string()).optional(), otel_collector_distributions: z.array(z.string()).optional(), otel_collector_versions: z.array(z.string()).optional(), otel_resource_attributes: z.array(z.string()).optional(), pod_name: z.string().optional(), remote_agent_management: z.string().optional(), remote_config_status: z.string().optional(), services: z.array(z.string()).optional(), tags: z.array(fleetAgentAttributesTagsItems).optional(), team: z.string().optional()});

export const fleetAgentV2ResourceType = z.literal("agent");

export const fleetAgentV2 = z.object({attributes: fleetAgentV2Attributes, id: z.string(), type: fleetAgentV2ResourceType});

export const fleetAgentsV2Page = z.object({total_count: z.number().int().optional(), total_filtered_count: z.number().int().optional()});

export const fleetAgentsV2ResponseMeta = z.object({page: fleetAgentsV2Page.optional()});

export const fleetAgentsV2Response = z.object({data: z.array(fleetAgentV2), meta: fleetAgentsV2ResponseMeta.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 all Datadog Agents
 * 
 * GET /api/v2/fleet/agents
 * 
 * Also accepts auth: AuthZ
 */
export const getApiApiV2FleetAgents = async (args: GetApiApiV2FleetAgentsArgs, options?: GetApiApiV2FleetAgentsOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = options ?? {}

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

if (args.page_number != null) query.append("page_number", String(args.page_number))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.filter != null) query.append("filter", String(args.filter))
if (args.tags != null) query.append("tags", String(args.tags))
if (args.sort_attribute != null) query.append("sort_attribute", String(args.sort_attribute))
if (args.sort_descending != null) query.append("sort_descending", String(args.sort_descending))
if (apiKeyAuth !== undefined) headers.set("DD-API-KEY", apiKeyAuth)
if (appKeyAuth !== undefined) headers.set("DD-APPLICATION-KEY", appKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/fleet/agents${query.size > 0 ? `?${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(fleetAgentsV2Response, await res.json())
};