import {z} from 'zod'

export type GetApiLoadBalancerIdArgs = {id: string};

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

export const antiAffinityGroupRef = z.object({id: z.string().optional()});

export const publicIpAssignment = z.enum(["inet4", "dual", "none"]);

export const labels = z.record(z.string(), z.string());

export const securityGroupRef = z.object({id: z.string().optional()});

export const elasticIpRef = z.object({id: z.string().optional()});

export const instanceTypeRef = z.object({id: z.string().optional()});

export const privateNetworkRef = z.object({id: z.string().optional()});

export const templateRef = z.object({id: z.string().optional()});

export const sshKeyRef = z.object({name: z.string().min(1).max(255).optional()});

export const manager = z.object({id: z.string().optional(), type: z.enum(["sks-nodepool", "instance-pool"]).optional()});

export const instanceRef = z.object({id: z.string().optional()});

export const deployTargetRef = z.object({id: z.string().optional()});

export const instancePool = z.object({"application-consistent-snapshot-enabled": z.boolean().optional(), "anti-affinity-groups": z.array(antiAffinityGroupRef).optional(), description: z.string().min(1).max(255).optional(), "public-ip-assignment": publicIpAssignment.optional(), labels: labels.optional(), "security-groups": z.array(securityGroupRef).optional(), "elastic-ips": z.array(elasticIpRef).optional(), name: z.string().min(1).max(255).optional(), "instance-type": instanceTypeRef.optional(), "min-available": z.number().int().gte(0).optional(), "private-networks": z.array(privateNetworkRef).optional(), template: templateRef.optional(), state: z.enum(["scaling-up", "scaling-down", "destroying", "creating", "suspended", "running", "updating"]).optional(), size: z.number().int().gt(0).optional(), "ssh-key": sshKeyRef.optional(), "instance-prefix": z.string().min(1).max(30).optional(), "user-data": z.string().min(1).optional(), manager: manager.optional(), instances: z.array(instanceRef).optional(), "deploy-target": deployTargetRef.optional(), "ipv6-enabled": z.boolean().optional(), id: z.string().optional(), "disk-size": z.number().int().gte(10).lte(51200).optional(), "ssh-keys": z.array(sshKeyRef).optional()});

export const loadBalancerServiceHealthcheck = z.object({mode: z.enum(["tcp", "http", "https"]).optional(), interval: z.number().int().gte(5).lte(300).optional(), uri: z.string().min(1).max(255).optional(), port: z.number().int().gte(1).lte(65535).optional(), timeout: z.number().int().gte(2).lte(60).optional(), retries: z.number().int().gte(1).lte(20).optional(), "tls-sni": z.string().min(1).max(255).optional()});

export const loadBalancerServerStatus = z.object({"public-ip": z.string().optional(), status: z.enum(["failure", "success"]).optional()});

export const loadBalancerService = z.object({description: z.string().max(255).optional(), protocol: z.enum(["tcp", "udp"]).optional(), name: z.string().min(1).max(255).optional(), state: z.enum(["creating", "deleting", "running", "updating", "error"]).optional(), "target-port": z.number().int().gt(0).optional(), port: z.number().int().gt(0).optional(), "instance-pool": instancePool.optional(), strategy: z.enum(["round-robin", "maglev-hash", "source-hash"]).optional(), healthcheck: loadBalancerServiceHealthcheck.optional(), id: z.string().optional(), "healthcheck-status": z.array(loadBalancerServerStatus).optional()});

export const loadBalancer = z.object({id: z.string().optional(), description: z.string().max(255).optional(), name: z.string().min(1).max(255).optional(), state: z.enum(["creating", "migrated", "deleting", "running", "migrating", "error"]).optional(), "created-at": z.string().optional(), ip: z.string().optional(), services: z.array(loadBalancerService).optional(), labels: labels.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
};

/**
 * Retrieve Load Balancer details
 * 
 * GET /load-balancer/{id}
 */
export const getApiLoadBalancerId = async (args: GetApiLoadBalancerIdArgs, options?: GetApiLoadBalancerIdOptions) => {
const {baseUrl = "https://api-ch-gva-2.exoscale.com/v2", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/load-balancer/${encodeURIComponent(String(args.id))}${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(loadBalancer, await res.json())
};