Frontend Test Generation & Code Review MCP Server

/** * MCP 响应格式化工具 * 统一 MCP tool 的响应格式 */ import type { Diff } from '../schemas/diff.js'; /** * 格式化 JSON 响应 */ export function formatJsonResponse(data: unknown) { return { content: [ { type: 'text' as const, text: JSON.stringify(data, null, 2), }, ], }; } /** * 格式化错误响应 */ export function formatErrorResponse(error: unknown) { let errorMessage: string; let errorStack: string | undefined; let errorDetails: Record<string, unknown> = {}; if (error instanceof Error) { // 标准 Error 对象 errorMessage = error.message; errorStack = error.stack; } else if (typeof error === 'object' && error !== null) { // 复杂错误对象（如 {tool, error, metadata}） const errorObj = error as Record<string, unknown>; // 提取错误消息 if (typeof errorObj.error === 'string') { errorMessage = errorObj.error; } else if (errorObj.error instanceof Error) { errorMessage = errorObj.error.message; errorStack = errorObj.error.stack; } else { errorMessage = JSON.stringify(errorObj.error); } // 保留其他字段 Object.keys(errorObj).forEach(key => { if (key !== 'error') { errorDetails[key] = errorObj[key]; } }); } else { // 其他类型（字符串、数字等） errorMessage = String(error); } const response: Record<string, unknown> = { error: errorMessage, }; if (errorStack) { response.stack = errorStack; } // 合并其他详细信息 Object.assign(response, errorDetails); return { content: [ { type: 'text' as const, text: JSON.stringify(response, null, 2), }, ], isError: true, }; } /** * 格式化 Diff 响应（用于 diff 获取类工具） */ export function formatDiffResponse(diff: Diff, metadata?: { commit?: { hash: string; author: string; date: string; message: string; }; }) { const baseResponse = { ...(metadata?.commit ? { commit: metadata.commit } : {}), revisionId: diff.revisionId, diffId: diff.diffId, title: diff.title, summary: diff.summary, files: diff.files.map(f => ({ path: f.path, changeType: f.changeType, additions: f.additions, deletions: f.deletions, hunks: f.hunks.map(h => ({ oldStart: h.oldStart, oldLines: h.oldLines, newStart: h.newStart, newLines: h.newLines, content: h.lines.join('\n'), })), })), fullDiff: diff.numberedRaw || diff.raw, }; return formatJsonResponse(baseResponse); }