decorativeEmoji,

decorativePrefix,

stripDecorativeEmojiForTerminal,

supportsDecorativeEmoji,

type DecorativeEmojiOptions,

} from "../../packages/terminal-core/src/decorative-emoji.js";

import { isRich, theme } from "../../packages/terminal-core/src/theme.js";

let bannerEmitted = false;

// Use grapheme segmentation so decorative emoji and block art split without corrupting clusters.

const graphemeSegmenter =

typeof Intl !== "undefined" && "Segmenter" in Intl

? new Intl.Segmenter(undefined, { granularity: "grapheme" })

: null;

function splitGraphemes(value: string): string[] {

if (!graphemeSegmenter) {

return Array.from(value);

}

try {

return Array.from(graphemeSegmenter.segment(value), (seg) => seg.segment);

} catch {

return Array.from(value);

}

}

const hasJsonFlag = (argv: string[]) =>

argv.some((arg) => arg === "--json" || arg.startsWith("--json="));

return `${line1}\n${line2}`;

}

const LOBSTER_ASCII_BODY = [

"▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄",

"██░▄▄▄░██░▄▄░██░▄▄▄██░▀██░██░▄▄▀██░████░▄▄▀██░███░██",

"██░███░██░▀▀░██░▄▄▄██░█░█░██░█████░████░▀▀░██░█░█░██",

"██░▀▀▀░██░█████░▀▀▀██░██▄░██░▀▀▄██░▀▀░█░██░██▄▀▄▀▄██",

"▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀",

];

function centerText(text: string, width: number): string {

const pad = Math.max(0, width - visibleWidth(text));

const left = Math.floor(pad / 2);

const right = pad - left;

return `${" ".repeat(left)}${text}${" ".repeat(right)}`;

}

function formatCliBannerArtLines(options: BannerOptions): string[] {

const width = visibleWidth(LOBSTER_ASCII_BODY[0] ?? "");

const emojiOptions = resolveEmojiOptions(options);

const title = supportsDecorativeEmoji(emojiOptions) ? "🦞 OPENCLAW 🦞" : "OPENCLAW";

return [...LOBSTER_ASCII_BODY, centerText(title, width), " "];

}

/** Format the large decorative OpenClaw banner art. */

export function formatCliBannerArt(options: BannerOptions = {}): string {

const rich = options.richTty ?? isRich();

const lines = formatCliBannerArtLines(options);

if (!rich) {

return lines.join("\n");

}

const colorChar = (ch: string) => {

if (ch === "█") {

return theme.accentBright(ch);

}

if (ch === "░") {

return theme.accentDim(ch);

}

if (ch === "▀") {

return theme.accent(ch);

}

return theme.muted(ch);

};

const emojiOptions = resolveEmojiOptions(options);

const icon = decorativeEmoji("🦞", emojiOptions);

const colored = lines.map((line) => {

if (line.includes("OPENCLAW")) {

if (!icon) {

return theme.info(centerText("OPENCLAW", visibleWidth(line)));

}

return (

theme.muted(" ") +

theme.accent(icon) +

theme.info(" OPENCLAW ") +

theme.accent(icon)

);

}

return splitGraphemes(line).map(colorChar).join("");

});

return colored.join("\n");

}

/** Emit the CLI banner once for interactive, non-JSON, non-version invocations. */

export function emitCliBanner(version: string, options: BannerOptions = {}) {

if (bannerEmitted) {