import {z} from 'zod'

export type GetApiV1ChainsChainIdEnvironmentsEnvNameOptions = {baseUrl: string, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const promotionCleanupStrategyV1 = z.enum(["KEEP", "SCALE_TO_ZERO", "DEACTIVATE"]);

export const rollingDeployStrategyV1 = z.literal("REPLICA");

export const rollingDeployConfigV1 = z.object({rolling_deploy_strategy: rollingDeployStrategyV1.optional(), max_surge_percent: z.number().int().optional(), max_unavailable_percent: z.number().int().optional(), stabilization_time_seconds: z.number().int().optional(), replica_overhead_percent: z.number().int().optional()});

export const promotionSettingsV1 = z.object({redeploy_on_promotion: z.boolean().nullable().optional(), rolling_deploy: z.boolean().nullable().optional(), promotion_cleanup_strategy: promotionCleanupStrategyV1.nullable().optional(), rolling_deploy_config: rollingDeployConfigV1.nullable().optional(), ramp_up_while_promoting: z.boolean().nullable().optional(), ramp_up_duration_seconds: z.number().int().nullable().optional()});

export const autoscalingSettingsV1 = z.object({min_replica: z.number().int(), max_replica: z.number().int(), autoscaling_window: z.number().int().nullable(), scale_down_delay: z.number().int().nullable(), concurrency_target: z.number().int(), target_utilization_percentage: z.number().int().nullable(), target_in_flight_tokens: z.number().int().nullable().optional(), max_scale_down_rate: z.number().int().nullable().optional()});

export const instanceTypeV1 = z.object({id: z.string(), name: z.string(), memory_limit_mib: z.number().int(), millicpu_limit: z.number().int(), gpu_count: z.number().int(), gpu_type: z.string().nullable(), gpu_memory_limit_mib: z.number().int().nullable()});

export const chainletEnvironmentSettingsV1 = z.object({chainlet_name: z.string(), autoscaling_settings: autoscalingSettingsV1.nullable(), instance_type: instanceTypeV1});

export const deploymentStatusV1 = z.enum(["BUILDING", "DEPLOYING", "DEPLOY_FAILED", "LOADING_MODEL", "ACTIVE", "UNHEALTHY", "BUILD_FAILED", "BUILD_STOPPED", "DEACTIVATING", "INACTIVE", "FAILED", "UPDATING", "SCALED_TO_ZERO", "WAKING_UP"]);

export const chainletV1 = z.object({id: z.string(), name: z.string(), autoscaling_settings: autoscalingSettingsV1.nullable(), instance_type_name: z.string(), active_replica_count: z.number().int(), status: deploymentStatusV1});

export const chainDeploymentV1 = z.object({id: z.string(), created_at: z.string(), chain_id: z.string(), environment: z.string().nullable(), chainlets: z.array(chainletV1), status: deploymentStatusV1});

export const chainEnvironmentV1 = z.object({name: z.string(), created_at: z.string(), chain_id: z.string(), promotion_settings: promotionSettingsV1, chainlet_settings: z.array(chainletEnvironmentSettingsV1), current_deployment: chainDeploymentV1.nullable(), candidate_deployment: chainDeploymentV1.nullable().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
};

/**
 * Gets a chain environment's details
 * 
 * GET /v1/chains/{chain_id}/environments/{env_name}
 */
export const getApiV1ChainsChainIdEnvironmentsEnvName = async (options: GetApiV1ChainsChainIdEnvironmentsEnvNameOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/chains/${encodeURIComponent(String(args.chain_id))}/environments/${encodeURIComponent(String(args.env_name))}${query.size > 0 ? `?${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(chainEnvironmentV1, await res.json())
};