Jake
d6bf9ed245
Wholesale JS -> TS migration of the frontend — stores, utils, actions,
and all Svelte component scripts adopt type annotations. Compile-time
surfaces (app.d.ts, lib/types/) added for shared DTO types.
Build plumbing:
- package.json: dev:frontend script that runs svelte-kit sync first
- tauri.conf.json: beforeDevCommand points at dev:frontend
- run.sh: dropped the sed-hack that temporarily blanked beforeDevCommand;
now relies on npm run dev:frontend to avoid double-Vite
- jsconfig.json: allowImportingTsExtensions
Preserves all Group 1 behaviour:
- page.svelte.ts keeps loadHistory / loadTasks Tauri-first, no
localStorage; saveTranscriptMeta + mapTranscriptRow + mapTaskRow
intact; update_task_cmd and update_transcript_meta_cmd invocations
carry the correct payload shape.
- Toasts, preferences stores typed without behaviour change.
- Viewer still routes segment edits through saveTranscriptMeta; the
Task 1.5 TODO markers are gone.
taskExtractor.ts is functionally improved during the migration:
- multi-task matches in the same sentence
- list-style shopping-verb expansion (get bread, milk, and cheese)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
50 lines
1.1 KiB
TypeScript
50 lines
1.1 KiB
TypeScript
export function buildCumulativeOffsets(heights: number[]): number[] {
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const offsets = new Array(heights.length + 1);
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offsets[0] = 0;
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for (let i = 0; i < heights.length; i++) {
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offsets[i + 1] = offsets[i] + heights[i];
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}
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return offsets;
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}
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export function findVisibleRange(
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cumulativeOffsets: number[],
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itemCount: number,
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scrollTop: number,
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viewportHeight: number,
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buffer = 4,
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) {
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if (!cumulativeOffsets.length || itemCount === 0 || viewportHeight <= 0) {
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return { start: 0, end: 0 };
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}
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let lo = 0;
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let hi = itemCount - 1;
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while (lo < hi) {
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const mid = (lo + hi) >>> 1;
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if (cumulativeOffsets[mid + 1] < scrollTop) {
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lo = mid + 1;
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} else {
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hi = mid;
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}
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}
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const start = Math.max(0, lo - buffer);
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const endScroll = scrollTop + viewportHeight;
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lo = start;
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hi = itemCount - 1;
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while (lo < hi) {
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const mid = (lo + hi) >>> 1;
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if (cumulativeOffsets[mid] < endScroll) {
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lo = mid + 1;
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} else {
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hi = mid;
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}
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}
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return {
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start,
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end: Math.min(itemCount, lo + buffer),
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};
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}
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