Files
learnharness/components/phase-divider.tsx
T
amosblomqvist c9ba4a1b06 Minimal-color round 2 (owner): the chip is label-only — spinner out of the top bar
The round-1 experiment put the braille spinner in the chip's old dot
slot; rejected live: the pill's curve and the square braille cell fought
for space (visually squeezed), and the chat surface already shows
in-flight work (thinking shimmer, the dock) — the chip stating the phase
is its whole job. PhaseChip back to a label-only pill (busy prop
removed, single-child gap dropped); work-state lives in exactly one
place: the sidebar row's spinner. Doc note + test pin the decision so
it doesn't get re-tried blind. Gates: typecheck, lint, 469/469, build.
2026-09-15 17:10:49 +03:00

89 lines
3.8 KiB
TypeScript

import type { Phase3 } from "@/src/core";
/**
* The in-session phase presentation (owner, minimal-color round —
* monochrome now): the header chip next to the session title, and the
* dotted boundary rule the transcript draws where the session moves into a
* new phase. Phase COLOR is retired app-wide (phases only advance, so
* color-as-signal was decoration); the label text carries the phase, and
* the chip's old dot slot is repurposed for the braille spinner while a
* turn is in flight — motion is the honest state signal. Replaces the old
* inline plan-divider (artifact registry): the boundary is a MESSAGE-level
* seam, so chat.tsx renders it at the message where the phase changes, not
* inside a tool part.
*
* Quiet register (matches the old divider): hairline rules, small chips —
* never a banner. Probe never renders a divider: phases only advance, so
* probe is the start of the transcript and "Planning"/"Teaching" are the two
* visible seams.
*
* Owner, minimal-color round 2: the chip is LABEL-ONLY, deliberately — a
* working-state spinner was tried here and rejected: the pill's curve and
* the square braille cell fought for space, and the chat surface already
* shows in-flight work (thinking shimmer, the dock). The chip states the
* phase; work-state is the sidebar row's spinner.
*/
/** Header-chip labels: the phases as the learner thinks of them. */
const CHIP_LABEL: Record<Phase3, string> = {
probe: "Probing",
plan: "Planning",
teach: "Teaching",
};
/** The header chip: the phase label, monochrome — label-only by design
* (see the component note: the pill's curve suits text, not glyphs). */
export function PhaseChip({ phase }: { phase: Phase3 }) {
return (
<span
data-testid="phase-chip"
data-phase={phase}
title={`Session phase: ${CHIP_LABEL[phase]}`}
className="flex shrink-0 items-center rounded-full border border-border/80 px-2 py-0.5 text-xs font-medium uppercase tracking-wide text-muted-foreground"
>
{CHIP_LABEL[phase]}
</span>
);
}
/**
* The transcript boundary: a monochrome dotted rule at the message where
* the session enters `phase` (owner, minimal-color round — the label
* carries the transition; the phase color never did). The plan seam
* carries its node count ("Plan · 4 nodes"); teaching is just the label.
* Null for probe (defensive — the fold never emits a probe transition
* after the start).
*/
export function PhaseDivider({ phase, nodeCount }: { phase: Phase3; nodeCount?: number }) {
if (phase === "probe") return null;
const label =
phase === "plan" && nodeCount
? `Plan · ${nodeCount} node${nodeCount === 1 ? "" : "s"}`
: CHIP_LABEL[phase];
return (
<div className="my-4 flex w-full items-center gap-3" data-testid={`phase-divider-${phase}`}>
<span className="h-0 flex-1 border-t-2 border-dotted border-border/50" aria-hidden />
<span className="rounded-full border border-border/80 px-2.5 py-0.5 text-xs font-medium uppercase tracking-wide text-muted-foreground">
{label}
</span>
<span className="h-0 flex-1 border-t-2 border-dotted border-border/50" aria-hidden />
</div>
);
}
/**
* The node count for a plan seam: the first plan-op tree output in the
* message that carries the seam (the plan_init that made the phase flip).
* Structural slice of a UI message, same shape-of-shapes as core/phases.ts.
*/
export function planNodeCount(
message: { parts: ReadonlyArray<{ type: string; state?: string; output?: unknown; [k: string]: unknown }> },
): number | undefined {
for (const part of message.parts) {
if (!part.type.startsWith("tool-plan_") || part.state !== "output-available") continue;
const tree = (part.output as { tree?: { nodes?: unknown[] } } | undefined)?.tree;
if (tree && Array.isArray(tree.nodes) && tree.nodes.length > 0) return tree.nodes.length;
}
return undefined;
}