// Terminal Core module implements note behavior.

import { AsyncLocalStorage } from "node:async_hooks";

import { note as clackNote } from "@clack/prompts";

import { visibleWidth } from "./ansi.js";

import { splitGraphemes, visibleWidth } from "./ansi.js";

import { stylePromptTitle } from "./prompt-style.js";

import { normalizeLowercaseStringOrEmpty } from "./string.js";

if (maxLen <= 0) {

return [word];

}

const chars = Array.from(word);

// maxLen is a visible-column budget, so accumulate grapheme visible width (CJK/emoji count as 2

// columns) instead of code-point count; otherwise a wide-char run overflows the line by up to 2x.

const parts: string[] = [];

for (let i = 0; i < chars.length; i += maxLen) {

parts.push(chars.slice(i, i + maxLen).join(""));

let current = "";

let currentWidth = 0;

for (const grapheme of splitGraphemes(word)) {

const width = visibleWidth(grapheme);

if (current && currentWidth + width > maxLen) {

parts.push(current);

current = "";

currentWidth = 0;

}

current += grapheme;

currentWidth += width;

}

if (current) {

parts.push(current);

}

return parts.length > 0 ? parts : [word];

}

expect(wrapNoteMessage(new Error("boom"), { maxWidth: 20, columns: 80 })).toBe("Error: boom");

expect(wrapNoteMessage({ message: "boom" }, { maxWidth: 20, columns: 80 })).toBe("");

});

it("keeps wrapped lines within the visible-column budget for wide (CJK) words", () => {

// A long CJK run with no separators reaches splitLongWord; each fullwidth char is 2 columns,

// so splitting by code-point count would emit lines up to 2x the budget.

const input = "東京特許許可局長今日休暇許可局長今日休暇東京特許";

const lines = wrapNoteMessage(input, { maxWidth: 20, columns: 80 }).split("\n");

for (const line of lines) {

expect(visibleWidth(line)).toBeLessThanOrEqual(20);

}

expect(lines.join("")).toBe(input);

});

});