import { z } from 'zod';

/**
 * Site-Admin user management (issue #59): the list + actions an instance
 * operator uses for support, abuse handling, and GDPR groundwork. Deleting a
 * user pseudonymizes their authorship ("Deleted user") and trashes their
 * personal pond (security.md §Privacy) rather than hard-deleting rows.
 */

export type AdminUserStatus = 'PENDING_VERIFICATION' | 'ACTIVE' | 'DISABLED';

export interface AdminUserView {
  id: string;
  username: string;
  email: string;
  displayName: string;
  status: AdminUserStatus;
  isSiteAdmin: boolean;
  createdAt: string;
  lastLoginAt: string | null;
  /** Ponds this user owns (personal + shared). */
  pondCount: number;
}

export interface AdminUserListView {
  users: AdminUserView[];
  total: number;
  page: number;
  pageSize: number;
}

export const adminUserListQuerySchema = z.object({
  q: z.string().trim().optional(),
  page: z.coerce.number().int().min(1).default(1),
  pageSize: z.coerce.number().int().min(1).max(100).default(20),
});
export type AdminUserListQuery = z.infer<typeof adminUserListQuerySchema>;

export const setUserDisabledSchema = z.object({ disabled: z.boolean() });
export const setSiteAdminSchema = z.object({ isSiteAdmin: z.boolean() });

/** The pseudonym a deleted user's authorship shows as. */
export const DELETED_USER_DISPLAY_NAME = 'Deleted user';