import {z} from 'zod'

export type FieldAlias = {display: string, fields: Array<string>, group?: (string | null) | undefined, id: string, is_workload_type?: boolean | undefined};

export type CreateApiApiOrgIdAlertsDeduplicationSemanticGroupsPreviewDiffArgs = {org_id: string, body: Array<FieldAlias>};

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

export const fieldAlias = z.object({display: z.string(), fields: z.array(z.string()), group: z.string().nullable().optional(), id: z.string(), is_workload_type: z.boolean().optional()});

export const semanticGroupModification = z.object({current: fieldAlias, proposed: fieldAlias});

export const semanticGroupDiff = z.object({additions: z.array(fieldAlias), modifications: z.array(semanticGroupModification), unchanged: z.array(fieldAlias)});

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
};

/**
 * Preview diff between imported semantic groups and current DB state
 * 
 * POST /api/{org_id}/alerts/deduplication/semantic-groups/preview-diff
 */
export const createApiApiOrgIdAlertsDeduplicationSemanticGroupsPreviewDiff = async (args: CreateApiApiOrgIdAlertsDeduplicationSemanticGroupsPreviewDiffArgs, options: CreateApiApiOrgIdAlertsDeduplicationSemanticGroupsPreviewDiffOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Authorization} = options ?? {}

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

if (Authorization !== undefined) headers.set("Authorization", Authorization)

const url = `${baseUrl.replace(/\/+$/, '')}/api/${encodeURIComponent(String(args.org_id))}/alerts/deduplication/semantic-groups/preview-diff${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(semanticGroupDiff, await res.json())
};