import {z} from 'zod'

export type GetApiPoliciesAttachmentsAttachmentIdArgs = {attachment_id: string};

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

export const policyAttachmentDBResponse = z.object({attachment_id: z.string(), created_at: z.string().nullable().optional(), created_by: z.string().nullable().optional(), default: z.boolean().optional(), definition_location: z.enum(["db", "config"]).optional(), keys: z.array(z.string()).optional(), models: z.array(z.string()).optional(), policy_name: z.string(), priority: z.number().int().nullable().optional(), scope: z.string().nullable().optional(), tags: z.array(z.string()).optional(), teams: z.array(z.string()).optional(), updated_at: z.string().nullable().optional(), updated_by: z.string().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
};

/**
 * Get Policy Attachment
 * 
 * GET /policies/attachments/{attachment_id}
 */
export const getApiPoliciesAttachmentsAttachmentId = async (args: GetApiPoliciesAttachmentsAttachmentIdArgs, options: GetApiPoliciesAttachmentsAttachmentIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (APIKeyHeader !== undefined) headers.set("x-litellm-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/policies/attachments/${encodeURIComponent(String(args.attachment_id))}${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(policyAttachmentDBResponse, await res.json())
};