import type { Style } from "../../core/types.js";
export type TTranscriptSegment = Readonly<{
    text: string;
    style?: Style;
    href?: string;
    selectable?: boolean;
    tokenId?: string;
    meta?: unknown;
}>;
export type TTranscriptAction = Readonly<{
    id: string;
    label: string;
    disabled?: boolean;
    kind?: "primary" | "secondary" | "danger";
    style?: Style;
    hoverStyle?: Style;
    focusStyle?: Style;
    payload?: unknown;
}>;
export type TTranscriptRow = {
    kind: "message";
    key: string | number;
    role?: "user" | "assistant" | "system" | "tool";
    segments: readonly TTranscriptSegment[];
    selectableText?: string;
    actions?: readonly TTranscriptAction[];
    meta?: unknown;
} | {
    kind: "action";
    key: string | number;
    label: string;
    actions: readonly TTranscriptAction[];
    selectableText?: string;
    meta?: unknown;
} | {
    kind: "tool-call";
    key: string | number;
    title: string;
    collapsed: boolean;
    summary?: readonly TTranscriptSegment[];
    body?: readonly TTranscriptSegment[];
    actions?: readonly TTranscriptAction[];
    selectableText?: string;
    meta?: unknown;
} | {
    kind: "approval";
    key: string | number;
    title: string;
    description?: readonly TTranscriptSegment[];
    actions: readonly TTranscriptAction[];
    selectableText?: string;
    meta?: unknown;
};
export type TTranscriptDataSource = Readonly<{
    rowCount(): number;
    getRow(index: number): TTranscriptRow;
    getRowKey?: (index: number) => string | number;
    getRowVersion?: (index: number) => string | number;
    getChangedRange?: () => {
        start: number;
        end: number;
    } | null | undefined;
    firstRowIndex?: () => number;
}>;
export type TTranscriptVisualSegment = Readonly<{
    text: string;
    cells: number;
    style: Style;
    selectable?: boolean;
    sourceSegmentIndex?: number;
}>;
export type TTranscriptSelectionSegment = Readonly<{
    x0: number;
    x1: number;
    text: string;
    selectable: boolean;
}>;
export type TTranscriptHitRegion = Readonly<{
    id: string;
    kind: "link" | "action" | "fold-toggle" | "tool-call";
    rowIndex: number;
    visualRow: number;
    x0: number;
    x1: number;
    payload?: unknown;
    hoverStyle?: Style;
    focusStyle?: Style;
}>;
export type TTranscriptVisualRow = Readonly<{
    rowIndex: number;
    rowKey: string | number;
    partIndex: number;
    startCell: number;
    segments: readonly TTranscriptVisualSegment[];
    selectionSegments: readonly TTranscriptSelectionSegment[];
    hitRegions: readonly TTranscriptHitRegion[];
    selectableText?: string;
    text: string;
}>;
export type TTranscriptRegionEvent = Readonly<{
    region: TTranscriptHitRegion;
    row: TTranscriptRow;
    rowIndex: number;
    absoluteRowIndex: number;
    event?: unknown;
}>;
export type TTranscriptRowEvent = Readonly<{
    row: TTranscriptRow;
    rowIndex: number;
    absoluteRowIndex: number;
    event?: unknown;
}>;
export type TTranscriptViewHandle = Readonly<{
    scrollToBottom(): void;
    scrollToTop(): void;
    scrollToRow(index: number, options?: {
        align?: "start" | "center" | "end";
    }): void;
    invalidateRow(index: number): void;
    invalidateRange(start: number, end: number): void;
    refreshViewport(): void;
    focusNextRegion(): boolean;
    focusPreviousRegion(): boolean;
    activateFocusedRegion(): boolean;
    getHoveredRegion(): TTranscriptHitRegion | null;
}>;