/**
 * activity-diff.tsx
 *
 * <ActivityDiff> — renders the field-level diff of a single ActivityEvent.
 *
 * Three visual states driven by `event.action`:
 *   - created  → green "after" column only (no before)
 *   - deleted  → red "before" column only (no after)
 *   - updated  → yellow "before → after" side-by-side per field
 *
 * Consumers pass the declarative `columns` metadata array (same shape as
 * `TableMetadata.columns`) so labels and display types are resolved without
 * any internal fetch. Degrades gracefully when `columns` is empty/absent.
 *
 * Toggle: "Todos los campos / Solo cambios" (with changed-field counter).
 */
import * as React from 'react';
import type { ColumnDefinition } from './types';
/**
 * The canonical activity event shape as produced by the kernel / host backend.
 * Transport-agnostic — the component only reads the fields it needs.
 */
export interface ActivityEvent {
    id: string;
    correlation_id?: string | null;
    actor_id?: string | null;
    actor_label?: string | null;
    /** Storage path of the actor's avatar image, when the backend resolves one. */
    actor_avatar?: string | null;
    addon_key: string;
    model: string;
    record_id: string;
    action: string;
    kind?: string | null;
    before?: Record<string, unknown> | null;
    after?: Record<string, unknown> | null;
    /**
     * Explicit diff map produced by the backend. When present, only these keys
     * are "changed" fields. When absent, the diff is derived from before/after.
     */
    changes?: Record<string, {
        from: unknown;
        to: unknown;
    }> | null;
    summary?: string | null;
    occurred_at: string;
}
export interface ActivityDiffProps {
    /** The activity event to render. */
    event: ActivityEvent;
    /**
     * Column metadata for the model. Used to resolve `col.label` and display
     * type. Pass `TableMetadata.columns` from the host's metadata cache.
     * Optional — field keys are shown raw when absent.
     */
    columns?: ColumnDefinition[];
    /** IANA timezone for datetime cells (org config). */
    timeZone?: string;
    /** ISO 4217 currency for money cells (org config). */
    currency?: string;
    /** BCP-47 locale. Defaults to 'es'. */
    locale?: string;
    /** Class applied to the root element. */
    className?: string;
}
/**
 * Renders the field-level diff of a single ActivityEvent. Shows each field
 * with its label (from `columns`) and value formatted using the column's
 * display type. Supports a toggle to show only changed fields vs. all fields.
 */
export declare const ActivityDiff: React.FC<ActivityDiffProps>;
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