import {z} from 'zod'

export type GetApiV1alpha1InferenceDeploymentsArgs = {parentGatewayId?: string | undefined, updatedAfter?: string | undefined};

export type GetApiV1alpha1InferenceDeploymentsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const deploymentRuntime = z.object({engine: z.string(), version: z.string(), engineConfig: z.record(z.string(), z.string()).optional(), engineEnv: z.record(z.string(), z.string()).optional()});

export const deploymentResources = z.object({instanceType: z.string(), gpuCount: z.number().int()});

export const deploymentModel = z.object({name: z.string(), bucket: z.string(), path: z.string()});

export const deploymentAutoscaling = z.object({min: z.number().int(), max: z.number().int(), priority: z.number().int().optional(), concurrency: z.number().int().optional(), capacityClasses: z.array(z.enum(["CAPACITY_CLASS_RESERVED", "CAPACITY_CLASS_ON_DEMAND"])).optional()});

export const deploymentTraffic = z.object({weight: z.number().int().optional()});

export const deploymentSpec = z.object({id: z.string().optional(), name: z.string().optional(), gatewayIds: z.array(z.string()).optional(), runtime: deploymentRuntime.optional(), resources: deploymentResources.optional(), model: deploymentModel.optional(), autoscaling: deploymentAutoscaling.optional(), traffic: deploymentTraffic.optional(), organizationId: z.string().optional(), disabled: z.boolean().optional()});

export const condition = z.object({type: z.string().optional(), lastUpdateTime: z.string().optional(), reason: z.string().optional(), message: z.string().optional(), zone: z.string().optional(), status: z.enum(["True", "False", "Unknown"]).optional()});

export const deploymentStatus = z.object({createdAt: z.string().optional(), updatedAt: z.string().optional(), conditions: z.array(condition).optional(), status: z.enum(["STATUS_CREATING", "STATUS_READY", "STATUS_UPDATING", "STATUS_DELETING", "STATUS_ERROR", "STATUS_FAILED"]).optional()});

export const deployment = z.object({spec: deploymentSpec.optional(), status: deploymentStatus.optional()});

export const listDeploymentsResponse = z.object({items: z.array(deployment).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 deployments
 * 
 * GET /v1alpha1/inference/deployments
 */
export const getApiV1alpha1InferenceDeployments = async (args: GetApiV1alpha1InferenceDeploymentsArgs, options?: GetApiV1alpha1InferenceDeploymentsOptions) => {
const {baseUrl = "https://api.coreweave.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1alpha1/inference/deployments${query.size > 0 ? `?${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(listDeploymentsResponse, await res.json())
};