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import { jsx as _jsx, jsxs as _jsxs } from "react/jsx-runtime";
/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import React from 'react';
import { Text, Box } from 'ink';
import { common, createLowlight } from 'lowlight';
import { themeManager } from '../themes/theme-manager.js';
import { MaxSizedBox, MINIMUM_MAX_HEIGHT, } from '../components/shared/MaxSizedBox.js';
// Configure theming and parsing utilities.
const lowlight = createLowlight(common);
function renderHastNode(node, theme, inheritedColor) {
if (node.type === 'text') {
// Use the color passed down from parent element, if any
return _jsx(Text, { color: inheritedColor, children: node.value });
}
// Handle Element Nodes: Determine color and pass it down, don't wrap
if (node.type === 'element') {
const nodeClasses = node.properties?.className || [];
let elementColor = undefined;
// Find color defined specifically for this element's class
for (let i = nodeClasses.length - 1; i >= 0; i--) {
const color = theme.getInkColor(nodeClasses[i]);
if (color) {
elementColor = color;
break;
}
}
// Determine the color to pass down: Use this element's specific color
// if found, otherwise, continue passing down the already inherited color.
const colorToPassDown = elementColor || inheritedColor;
// Recursively render children, passing the determined color down
// Ensure child type matches expected HAST structure (ElementContent is common)
const children = node.children?.map((child, index) => (_jsx(React.Fragment, { children: renderHastNode(child, theme, colorToPassDown) }, index)));
// Element nodes now only group children; color is applied by Text nodes.
// Use a React Fragment to avoid adding unnecessary elements.
return _jsx(React.Fragment, { children: children });
}
// Handle Root Node: Start recursion with initial inherited color
if (node.type === 'root') {
// Check if children array is empty - this happens when lowlight can't detect language – fallback to plain text
if (!node.children || node.children.length === 0) {
return null;
}
// Pass down the initial inheritedColor (likely undefined from the top call)
// Ensure child type matches expected HAST structure (RootContent is common)
return node.children?.map((child, index) => (_jsx(React.Fragment, { children: renderHastNode(child, theme, inheritedColor) }, index)));
}
// Handle unknown or unsupported node types
return null;
}
/**
* Renders syntax-highlighted code for Ink applications using a selected theme.
*
* @param code The code string to highlight.
* @param language The language identifier (e.g., 'javascript', 'css', 'html')
* @returns A React.ReactNode containing Ink <Text> elements for the highlighted code.
*/
export function colorizeCode(code, language, availableHeight, maxWidth) {
const codeToHighlight = code.replace(/\n$/, '');
const activeTheme = themeManager.getActiveTheme();
try {
// Render the HAST tree using the adapted theme
// Apply the theme's default foreground color to the top-level Text element
let lines = codeToHighlight.split('\n');
const padWidth = String(lines.length).length; // Calculate padding width based on number of lines
let hiddenLinesCount = 0;
// Optimization to avoid highlighting lines that cannot possibly be displayed.
if (availableHeight !== undefined) {
availableHeight = Math.max(availableHeight, MINIMUM_MAX_HEIGHT);
if (lines.length > availableHeight) {
const sliceIndex = lines.length - availableHeight;
hiddenLinesCount = sliceIndex;
lines = lines.slice(sliceIndex);
}
}
const getHighlightedLines = (line) => !language || !lowlight.registered(language)
? lowlight.highlightAuto(line)
: lowlight.highlight(language, line);
return (_jsx(MaxSizedBox, { maxHeight: availableHeight, maxWidth: maxWidth, additionalHiddenLinesCount: hiddenLinesCount, overflowDirection: "top", children: lines.map((line, index) => {
const renderedNode = renderHastNode(getHighlightedLines(line), activeTheme, undefined);
const contentToRender = renderedNode !== null ? renderedNode : line;
return (_jsxs(Box, { children: [_jsx(Text, { color: activeTheme.colors.Gray, children: `${String(index + 1 + hiddenLinesCount).padStart(padWidth, ' ')} ` }), _jsx(Text, { color: activeTheme.defaultColor, wrap: "wrap", children: contentToRender })] }, index));
}) }));
}
catch (error) {
console.error(`[colorizeCode] Error highlighting code for language "${language}":`, error);
// Fallback to plain text with default color on error
// Also display line numbers in fallback
const lines = codeToHighlight.split('\n');
const padWidth = String(lines.length).length; // Calculate padding width based on number of lines
return (_jsx(MaxSizedBox, { maxHeight: availableHeight, maxWidth: maxWidth, overflowDirection: "top", children: lines.map((line, index) => (_jsxs(Box, { children: [_jsx(Text, { color: activeTheme.defaultColor, children: `${String(index + 1).padStart(padWidth, ' ')} ` }), _jsx(Text, { color: activeTheme.colors.Gray, children: line })] }, index))) }));
}
}
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