/**
 * Pure layout for the worktree's branch flow — the git-workflowillustration
 * form (fat colored curves ballooning off a main axis and merging back),
 * clay skin applied at render: time flows left→right (compressed, one
 * column per moment batch), the mainline-declared lane rides the axis, every
 * other research line bows out to its own amplitude and either merges back
 * (adopted), ends with its documented No (failed), or runs to the now-line
 * (open). Every work node is a bead ON its curve (terminal > create >
 * work > meta on the bead scale). NO TEXT lives in the SVG — status speaks
 * through shape and color; names and magnitudes stay in the lane list.
 *
 * Deterministic and order-independent: a pure fold over the worktree view.
 * NOTHING here infers structure: only user-declared parent edges shape the
 * curves; a dangling or cyclic declaration degrades to a root, never a
 * crash. Presentation constants only — no CBE-governed scalars live here.
 * @module dsh-client-ui-mimir/client/worktree-map
 */
import type { ResearchWorktreeLaneView, ResearchWorktreeTouchKind, ResearchWorktreeView } from 'dsh-mimir/types';
/** Time-column budget (moments beyond it fold into shared columns). */
export declare const WORKTREE_FLOW_MAX_COLS = 36;
/** One placed research line: its whole curve, plus the straight-section
 *  span where its beads ride. */
export interface WorktreeFlowLane {
    readonly lane: ResearchWorktreeLaneView;
    readonly color: string;
    readonly isMain: boolean;
    /** The full SVG path (M … Q … L …, merging lines curve back to parent). */
    readonly path: string;
    /** The curve's straight-section y (where beads sit). */
    readonly y: number;
}
/** One work node: a bead on its curve at a compressed column. */
export interface WorktreeFlowBead {
    readonly lineId: string;
    readonly x: number;
    readonly y: number;
    readonly kind: ResearchWorktreeTouchKind;
    readonly at: string;
    /** The action behind the bead's earliest touch (labels client-side). */
    readonly action: string;
    readonly count: number;
    readonly color: string;
}
/** One mainline-declaration epoch (a dashed vertical). */
export interface WorktreeFlowEpoch {
    readonly x: number;
    readonly label: string;
    readonly at: string;
}
/** The whole flow geometry, ready for one deterministic SVG render. */
export interface WorktreeFlowLayout {
    readonly width: number;
    readonly height: number;
    readonly cols: number;
    readonly momentCount: number;
    readonly mainY: number;
    readonly lanes: readonly WorktreeFlowLane[];
    readonly beads: readonly WorktreeFlowBead[];
    readonly epochs: readonly WorktreeFlowEpoch[];
    readonly nowX: number;
}
/** Bead radius on the bead scale (bumped when a column merged several). */
export declare function beadRadius(kind: ResearchWorktreeTouchKind, count: number): number;
/**
 * @param view - the derived worktree (lanes in ANY order; sorted internally).
 * @returns the deterministic flow layout (empty lanes when nothing parses).
 */
export declare function layoutWorktreeFlow(view: ResearchWorktreeView): WorktreeFlowLayout;
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