f18493fad4
- New ShareButton in the page header tries navigator.share() first
(native sheet on mobile), then falls back to navigator.clipboard, then
to a hidden textarea + execCommand("copy") for non-secure-context LAN.
Shows a brief "링크 복사됨" / "복사 안됨" toast; native share success
shows none (the OS sheet is the feedback).
- Mounted between ⇄ 비교 and the Star button.
Fixes reviewer concern on 442cc38: writeNote() used to return null for
both "user emptied the textarea (intentional delete)" and "localStorage
quota failure," so clearing a note showed "저장 안됨." It now returns a
discriminated { status: "saved" | "deleted" | "failed" } and the panel
shows "저장됨" / "삭제됨" / "저장 안됨" accordingly. Failure keeps the
user's text so they can retry or shorten it.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
59 lines
1.8 KiB
TypeScript
59 lines
1.8 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 type WriteResult =
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| { status: "saved"; note: Note }
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| { status: "deleted" }
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| { status: "failed" };
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export function writeNote(code: string, text: string): WriteResult {
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if (typeof window === "undefined") return { status: "failed" };
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const trimmed = text.slice(0, MAX_LEN);
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// 공백만이면 키 자체 제거 → 빈 잔여물 방지. 의도된 삭제이므로 failed 와 구분.
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if (!trimmed.trim()) {
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clearNote(code);
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return { status: "deleted" };
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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 { status: "saved", note: next };
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} catch {
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return { status: "failed" }; // 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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