/**
 * @fileoverview Types for drag and drop editing
 * @module plugins/drag-edit/types
 */
/**
 * Drag constraint (which axis can be edited)
 */
export type DragConstraint = 'x' | 'y' | 'both' | 'none';
/**
 * Point being dragged
 */
export interface DraggedPoint {
    /** Series ID */
    seriesId: string;
    /** Point index in the data array */
    index: number;
    /** Original X value */
    originalX: number;
    /** Original Y value */
    originalY: number;
    /** Current X value (during drag) */
    currentX: number;
    /** Current Y value (during drag) */
    currentY: number;
}
/**
 * Drag validation result
 */
export interface DragValidation {
    /** Whether the drag is valid */
    valid: boolean;
    /** Error message if invalid */
    message?: string;
    /** Adjusted X value (if snapping) */
    snapX?: number;
    /** Adjusted Y value (if snapping) */
    snapY?: number;
}
/**
 * Drag edit event
 */
export interface DragEditEvent {
    /** Series ID */
    seriesId: string;
    /** Point index */
    index: number;
    /** Old X value */
    oldX: number;
    /** Old Y value */
    oldY: number;
    /** New X value */
    newX: number;
    /** New Y value */
    newY: number;
    /** Delta X */
    deltaX: number;
    /** Delta Y */
    deltaY: number;
}
/**
 * Plugin configuration
 */
export interface PluginDragEditConfig {
    /** Enable drag editing (default: true) */
    enabled?: boolean;
    /** Which axis can be edited (default: 'both') */
    constraint?: DragConstraint;
    /** Snap to grid (default: false) */
    snapToGrid?: boolean;
    /** Grid snap interval for X (data units) */
    snapIntervalX?: number;
    /** Grid snap interval for Y (data units) */
    snapIntervalY?: number;
    /** Minimum distance in pixels to start drag (default: 5) */
    dragThreshold?: number;
    /** Point detection radius in pixels (default: 10) */
    hitRadius?: number;
    /** Series IDs that are editable (empty = all editable) */
    editableSeries?: string[];
    /** Validation function called before applying changes */
    validator?: (point: DraggedPoint) => DragValidation | boolean;
    /** Callback when a point starts being dragged */
    onDragStart?: (event: DragEditEvent) => void;
    /** Callback during drag (called on mouse move) */
    onDrag?: (event: DragEditEvent) => void;
    /** Callback when drag is complete */
    onDragEnd?: (event: DragEditEvent) => void;
    /** Highlight color for dragged point (default: '#ffff00') */
    highlightColor?: string;
    /** Show preview line during drag (default: true) */
    showPreview?: boolean;
    /** Preview line style */
    previewStyle?: {
        color?: string;
        width?: number;
        dash?: number[];
        opacity?: number;
    };
}
/**
 * Plugin API
 */
export interface DragEditAPI {
    /** Enable drag editing */
    enable(): void;
    /** Disable drag editing */
    disable(): void;
    /** Check if drag editing is enabled */
    isEnabled(): boolean;
    /** Set editable series */
    setEditableSeries(seriesIds: string[]): void;
    /** Get currently dragged point (if any) */
    getDraggedPoint(): DraggedPoint | null;
    /** Cancel current drag operation */
    cancelDrag(): void;
    /** Update configuration */
    updateConfig(config: Partial<PluginDragEditConfig>): void;
}