import {z} from 'zod'

export type PolicyAttachmentCreateRequest = {default?: boolean | undefined, keys?: (Array<string> | null) | undefined, models?: (Array<string> | null) | undefined, policy_name: string, priority?: (number | null) | undefined, scope?: (string | null) | undefined, tags?: (Array<string> | null) | undefined, teams?: (Array<string> | null) | undefined};

export type CreateApiPoliciesAttachmentsEstimateImpactArgs = {body: PolicyAttachmentCreateRequest};

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

export const attachmentImpactResponse = z.object({affected_keys_count: z.number().int().optional(), affected_teams_count: z.number().int().optional(), sample_keys: z.array(z.string()).optional(), sample_teams: z.array(z.string()).optional(), unnamed_keys_count: z.number().int().optional(), unnamed_teams_count: z.number().int().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
};

/**
 * Estimate Attachment Impact
 * 
 * POST /policies/attachments/estimate-impact
 */
export const createApiPoliciesAttachmentsEstimateImpact = async (args: CreateApiPoliciesAttachmentsEstimateImpactArgs, options: CreateApiPoliciesAttachmentsEstimateImpactOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/policies/attachments/estimate-impact${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(attachmentImpactResponse, await res.json())
};