442cc38c32
- New lib/notes.ts: localStorage key `notes:<code>` storing { text, updatedAt },
2000-char cap, blank/whitespace removes the key.
- New InvestmentNote sidebar panel: textarea + character counter, save button
enabled only when dirty, "방금 전 / N분 전 / 오늘 HH:MM / YYYY-MM-DD"
relative timestamp on the last save, short save-confirmation toast.
- Mounted in [code]/page.tsx sidebar after AlertsPanel.
Also tightens writeTargets() to require strictly positive finite values,
matching the UI's parseNum() guard so the lib is safe under direct external
calls (reviewer's non-blocking note on a4a4a7f).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
54 lines
1.6 KiB
TypeScript
54 lines
1.6 KiB
TypeScript
// 종목별 사용자 메모 (브라우저 한정 — 비로그인 앱).
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//
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// 키: `notes:<code>` → { text, updatedAt }
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// 투자 결정의 근거/관전 포인트를 짧게 적어두는 용도. 다른 사용자에게는 보이지 않음.
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const PREFIX = "notes:";
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const MAX_LEN = 2000; // 너무 큰 입력 방어 — localStorage quota 보호.
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export type Note = {
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text: string;
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updatedAt: string; // ISO
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};
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export function readNote(code: string): Note | null {
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if (typeof window === "undefined") return null;
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try {
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const raw = window.localStorage.getItem(`${PREFIX}${code}`);
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if (!raw) return null;
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const parsed = JSON.parse(raw) as Partial<Note>;
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if (typeof parsed.text !== "string" || typeof parsed.updatedAt !== "string") return null;
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return { text: parsed.text, updatedAt: parsed.updatedAt };
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} catch {
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return null;
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}
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}
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export function writeNote(code: string, text: string): Note | null {
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if (typeof window === "undefined") return null;
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const trimmed = text.slice(0, MAX_LEN);
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// 공백만이면 키 자체 제거 → 빈 잔여물 방지.
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if (!trimmed.trim()) {
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clearNote(code);
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return null;
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}
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const next: Note = { text: trimmed, updatedAt: new Date().toISOString() };
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try {
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window.localStorage.setItem(`${PREFIX}${code}`, JSON.stringify(next));
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return next;
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} catch {
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return null; // quota 등 — UI 가 저장 실패 처리
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}
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}
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export function clearNote(code: string): void {
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if (typeof window === "undefined") return;
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try {
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window.localStorage.removeItem(`${PREFIX}${code}`);
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} catch {
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/* ignore */
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}
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}
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export const NOTE_MAX_LEN = MAX_LEN;
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