renderers.ts•3.91 kB
import { getRenderer } from './renderers/rendererFactory';
import { LARGE_DOC_THRESHOLD_KB, MAX_LARGE_DOC_PREVIEW_ITEMS } from './renderers/common';
/**
* Generates a Markdown string from parsed JSON data based on its document type.
* This is the main entry point for rendering. It uses a factory to get the
* appropriate renderer based on the document type.
* It also handles large document preview limiting.
* @param data The parsed JSON data object.
* @param rawJsonString Optional raw JSON string to check document size.
* @returns The generated Markdown string.
*/
export function generateMarkdownFromData(data: Record<string, unknown>, rawJsonString?: string): string {
const isLargeDocument = rawJsonString ? (rawJsonString.length / 1024) > LARGE_DOC_THRESHOLD_KB : false;
if (!data || typeof data !== 'object') {
const fallbackContent = rawJsonString ?? JSON.stringify(data, null, 2);
return '```json\n' + fallbackContent + '\n```';
}
let mdString = '';
const metadata = data.metadata || {};
const content = data.content || {};
const documentType = metadata.documentType || 'generic';
mdString += `# ${metadata.title || 'Document'}\n\n`;
mdString += `**ID:** ${metadata.id || 'N/A'} \n`;
mdString += `**Type:** \`${documentType}\` \n`;
mdString += `**Path:** ${metadata.path || 'N/A'} \n`;
if (metadata.tags && Array.isArray(metadata.tags)) {
mdString += `**Tags:** ${metadata.tags.map((tag: string) => `\`${tag}\``).join(', ')} \n`;
}
mdString += `**Version:** ${metadata.version || 'N/A'} \n`;
mdString += `**Last Modified:** ${metadata.lastModified || 'N/A'} \n`;
mdString += `**Created At:** ${metadata.createdAt || 'N/A'} \n\n`;
mdString += '---\n\n';
mdString += `## Content\n\n`;
if (isLargeDocument) {
mdString += `_(Document is large, showing partial preview.)_\n\n`;
let itemCount = 0;
if (typeof content === 'object' && content !== null) {
for (const key in content) {
if (Object.prototype.hasOwnProperty.call(content, key) && itemCount < MAX_LARGE_DOC_PREVIEW_ITEMS) {
mdString += `### ${key}\n\n`;
const value = content[key];
if (Array.isArray(value)) {
mdString += `_${value.length} items_\n\n`;
} else if (typeof value === 'object' && value !== null) {
mdString += `_Object with ${Object.keys(value).length} keys_\n\n`;
} else {
mdString += '```\n' + String(value).substring(0, 100) + (String(value).length > 100 ? '...' : '') + '\n```\n\n';
}
itemCount++;
}
}
if (Object.keys(content).length > MAX_LARGE_DOC_PREVIEW_ITEMS) {
mdString += `... and more content not shown in preview.\n`;
}
} else {
mdString += '_(Unable to generate partial preview for this content format.)_\n'; // Keep this message
}
} else {
const renderContent = getRenderer(documentType);
try {
mdString += renderContent(content);
} catch (error) {
// console.error(`[Renderer Error - ${documentType}] Failed to render content:`, error);
// エラーはユーザーに表示しないようにコメントアウト
const errorMessage = error instanceof Error ? error.message : String(error);
mdString += `\n\n### Rendering Error (${documentType})\n\nAn error occurred while rendering the content:\n\n\`\`\`\n${errorMessage}\n\`\`\`\n`;
if (!isLargeDocument) {
mdString += `\n**Original Content:**\n\n\`\`\`json\n${JSON.stringify(content, null, 2)}\n\`\`\`\n`;
}
}
}
return mdString;
}