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import { Markdown, Text } from "@mariozechner/pi-tui";
import { getMarkdownTheme, keyHint } from "@mariozechner/pi-coding-agent";
import type { Component } from "@mariozechner/pi-tui";
import type { Theme } from "@mariozechner/pi-coding-agent";
import { isRecord } from "../util/guards";
const COMPACT_PREVIEW_LINES = 6;
export type ExpandableText = {
readonly summary: string;
readonly body: string;
readonly fullOutputPath?: string;
};
const isExpandableText = (value: unknown): value is ExpandableText =>
isRecord(value) && typeof value["summary"] === "string" && typeof value["body"] === "string";
const extractRender = (details: unknown): unknown =>
isRecord(details) ? details["render"] : undefined;
export const renderExpandableText = (
label: string,
result: { readonly details?: unknown },
expanded: boolean,
theme: Theme,
): Component => {
const render = extractRender(result.details);
if (!isExpandableText(render)) return new Text(theme.fg("error", `${label}: no details`), 0, 0);
if (!expanded) {
const lines = render.body.split("\n");
const preview = lines.slice(0, COMPACT_PREVIEW_LINES).join("\n");
const more = lines.length > COMPACT_PREVIEW_LINES ? `\n… ${lines.length - COMPACT_PREVIEW_LINES} more lines` : "";
const md = `**${render.summary}**\n\n${preview}${more}\n\n${keyHint("app.tools.expand", "to expand")}`;
return new Markdown(md, 0, 0, getMarkdownTheme());
}
const tail = render.fullOutputPath
? `\n\nFull output at \`${render.fullOutputPath}\` · ${keyHint("app.tools.expand", "to collapse")}`
: `\n\n${keyHint("app.tools.expand", "to collapse")}`;
const md = `**${render.summary}**\n\n${render.body}${tail}`;
return new Markdown(md, 0, 0, getMarkdownTheme());
};
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