@nanocollective/nanocoder/dist/utils/file-mention-handler.js

A local-first CLI coding agent that brings the power of agentic coding tools like Claude Code and Gemini CLI to local models or controlled APIs like OpenRouter

import { PlaceholderType, } from '../types/hooks.js';
import { loadFileContent } from './file-content-loader.js';
/**
 * Handle @file mention by creating a placeholder
 * Called when file is selected from autocomplete or on message submit
 *
 * Returns null if file doesn't exist (silent failure per spec)
 */
export async function handleFileMention(filePath, currentDisplayValue, currentPlaceholderContent, mentionText, // The original "@src/app.tsx:10-20" text to replace
lineRange) {
    // Load file content
    const fileResult = await loadFileContent(filePath, lineRange);
    // If file doesn't exist or failed to load, return null (silently skip per spec)
    if (!fileResult.success) {
        return null;
    }
    // Generate unique ID for this file placeholder
    const existingFileCount = Object.values(currentPlaceholderContent).filter(content => content.type === PlaceholderType.FILE).length;
    const fileId = `file_${existingFileCount + 1}`;
    // Create compact placeholder for display
    const placeholder = lineRange
        ? `[@${filePath}:${lineRange.start}${lineRange.end ? `-${lineRange.end}` : ''}]`
        : `[@${filePath}]`;
    // Create file placeholder content
    // Use the existing FilePlaceholderContent interface
    const fileContent = {
        type: PlaceholderType.FILE,
        displayText: placeholder,
        filePath: fileResult.metadata.absolutePath,
        content: fileResult.content || '',
        lastModified: Date.now(),
        encoding: 'utf-8',
        fileSize: fileResult.metadata.size,
    };
    const newPlaceholderContent = {
        ...currentPlaceholderContent,
        [fileId]: fileContent,
    };
    // Replace the @mention text with placeholder in display
    const newDisplayValue = currentDisplayValue.replace(mentionText, placeholder);
    return {
        displayValue: newDisplayValue,
        placeholderContent: newPlaceholderContent,
    };
}
/**
 * Parse line range from mention text if present
 * e.g., "@app.tsx:10-20" -> {start: 10, end: 20}
 */
export function parseLineRangeFromMention(mentionText) {
    const match = mentionText.match(/:(\d+)(?:-(\d+))?$/);
    if (!match) {
        return undefined;
    }
    const start = parseInt(match[1], 10);
    const end = match[2] ? parseInt(match[2], 10) : undefined;
    return { start, end };
}
//# sourceMappingURL=file-mention-handler.js.map