import process from "node:process";
import { styleText } from "node:util";
import { supportsHyperlinks } from "clickable-path";
//#region src/utils/formatting.ts
/** Render `label` as an OSC 8 link to `url`, where `clickable-path` reports support. */
function terminalLink(label, url, options = {}) {
	if (!supportsHyperlinks(options.stream ?? process.stdout)) return label;
	return `\u001B]8;;${url}\u0007${label}\u001B]8;;\u0007`;
}
const ANSI_RE = /\u001B\[[0-9;]*m|\u001B\]8;[^\u0007]*\u0007/g;
const NARROW_RE = /^[\u0000-\u02FF\u2010-\u2027\u2500-\u257F\u2800-\u28FF]*$/;
let widthPatterns;
function getWidthPatterns() {
	return widthPatterns ??= {
		zero: new RegExp(String.raw`[\p{Mn}\p{Me}\u200B-\u200F]`, "u"),
		wide: new RegExp(String.raw`[\p{Emoji_Presentation}\u1100-\u115F\u2E80-\u303E\u3041-\u33FF\u3400-\u4DBF\u4E00-\u9FFF\uA000-\uA4CF\uAC00-\uD7A3\uF900-\uFAFF\uFE30-\uFE4F\uFF00-\uFF60\uFFE0-\uFFE6\u{20000}-\u{3FFFD}]`, "u")
	};
}
/** Strip colour and hyperlink escapes. */
function stripAnsi(text) {
	return text.replace(ANSI_RE, "");
}
function charWidth(char) {
	const { zero, wide } = getWidthPatterns();
	if (zero.test(char)) return 0;
	return wide.test(char) ? 2 : 1;
}
/** Terminal columns `text` occupies. */
function visibleWidth(text) {
	const stripped = stripAnsi(text);
	if (NARROW_RE.test(stripped)) return stripped.length;
	let width = 0;
	for (const char of stripped) width += charWidth(char);
	return width;
}
const LINK_TERMINATOR = "\x1B]8;;\x07";
/** Cut `text` to `columns` with an ellipsis, closing any styling or link it cuts through. */
function truncate(text, columns) {
	if (columns <= 0) return "";
	if (visibleWidth(text) <= columns) return text;
	const limit = columns - 1;
	let visible = 0;
	let index = 0;
	let styled = false;
	let linked = false;
	ANSI_RE.lastIndex = 0;
	while (index < text.length && visible < limit) {
		ANSI_RE.lastIndex = index;
		const match = ANSI_RE.exec(text);
		if (match?.index === index) {
			if (match[0].startsWith("\x1B]8;")) linked = match[0] !== LINK_TERMINATOR;
			else styled = true;
			index += match[0].length;
			continue;
		}
		const code = text.codePointAt(index);
		const char = code < 768 ? text[index] : String.fromCodePoint(code);
		const width = code < 768 ? 1 : charWidth(char);
		if (visible + width > limit) break;
		index += char.length;
		visible += width;
	}
	return `${text.slice(0, index)}\u2026${linked ? LINK_TERMINATOR : ""}${styled ? "\x1B[0m" : ""}`;
}
/** Lower-case a leading capital, leaving acronyms alone. */
function decapitalise(text) {
	return /^[A-Z][a-z]/.test(text) ? text[0].toLowerCase() + text.slice(1) : text;
}
/** Format milliseconds with fixed precision per unit (`4.2ms`, `420ms`, `4.20s`, `42.0s`, `4m 02s`, `1h 04m 02s`). */
function formatDuration(ms) {
	ms = Math.max(0, ms);
	if (ms < 10) return `${ms.toFixed(1)}ms`;
	if (ms < 1e3) return `${Math.round(ms)}ms`;
	if (ms < 1e4) return `${(Math.floor(ms / 10) / 100).toFixed(2)}s`;
	if (ms < 6e4) return `${(Math.floor(ms / 100) / 10).toFixed(1)}s`;
	const total = Math.floor(ms / 1e3);
	const hours = Math.floor(total / 3600);
	const minutes = Math.floor(total % 3600 / 60);
	const seconds = String(total % 60).padStart(2, "0");
	return hours ? `${hours}h ${String(minutes).padStart(2, "0")}m ${seconds}s` : `${minutes}m ${seconds}s`;
}
const AT_MENTION_RE = /\b@([^, ]+)/g;
const BACKTICK_RE = /`([^`]*)`/g;
function formatInfoBox(infoObj) {
	let firstColumnLength = 0;
	let ansiFirstColumnLength = 0;
	const entries = Object.entries(infoObj).map(([label, val]) => {
		if (label.length > firstColumnLength) {
			ansiFirstColumnLength = styleText(["bold", "whiteBright"], label).length + 6;
			firstColumnLength = label.length + 6;
		}
		return [label, val || "-"];
	});
	const terminalWidth = Math.max(process.stdout.columns || 80, firstColumnLength) - 8;
	let boxStr = "";
	for (const [label, value] of entries) {
		const formattedValue = value.replace(AT_MENTION_RE, (_, r) => styleText("gray", ` ${r}`)).replace(BACKTICK_RE, (_, r) => r);
		boxStr += styleText(["bold", "whiteBright"], label).padEnd(ansiFirstColumnLength);
		let boxRowLength = firstColumnLength;
		const words = formattedValue.split(" ");
		let currentLine = "";
		for (const word of words) {
			const wordLength = visibleWidth(word);
			const spaceLength = currentLine ? 1 : 0;
			if (boxRowLength + wordLength + spaceLength > terminalWidth) {
				if (currentLine) boxStr += styleText("cyan", currentLine);
				boxStr += `\n${" ".repeat(firstColumnLength)}`;
				currentLine = word;
				boxRowLength = firstColumnLength + wordLength;
			} else {
				currentLine += (currentLine ? " " : "") + word;
				boxRowLength += wordLength + spaceLength;
			}
		}
		if (currentLine) boxStr += styleText("cyan", currentLine);
		boxStr += "\n";
	}
	return boxStr;
}
//#endregion
export { terminalLink as a, stripAnsi as i, formatDuration as n, truncate as o, formatInfoBox as r, visibleWidth as s, decapitalise as t };