K8s Doctor MCP

/** * Result formatting utilities * * @author zerry */ import type { DiagnosticIssue, Severity } from '../types.js'; /** * Convert bytes to human-readable format * * 1024 -> "1 KiB" * 1048576 -> "1 MiB" */ export function formatBytes(bytes: number): string { if (bytes === 0) return '0 B'; const k = 1024; const sizes = ['B', 'KiB', 'MiB', 'GiB', 'TiB']; const i = Math.floor(Math.log(bytes) / Math.log(k)); return `${(bytes / Math.pow(k, i)).toFixed(2)} ${sizes[i]}`; } /** * Convert millicores to human-readable format * * 1000 -> "1 core" * 500 -> "0.5 cores" */ export function formatCPU(millicores: number): string { const cores = millicores / 1000; return `${cores.toFixed(2)} ${cores === 1 ? 'core' : 'cores'}`; } /** * Return emoji based on severity */ export function getSeverityEmoji(severity: Severity): string { const emojis = { critical: '🔴', high: '🟠', medium: '🟡', low: '🔵', info: '⚪', }; return emojis[severity] || '⚪'; } /** * Convert health score to emoji */ export function getHealthEmoji(score: number): string { if (score >= 90) return '💚'; if (score >= 70) return '💛'; if (score >= 50) return '🧡'; return '❤️'; } /** * Convert timestamp to relative time * * "2 hours ago", "5 minutes ago" 등 */ export function timeAgo(timestamp: string): string { const now = new Date(); const past = new Date(timestamp); const diffMs = now.getTime() - past.getTime(); const diffSec = Math.floor(diffMs / 1000); const diffMin = Math.floor(diffSec / 60); const diffHour = Math.floor(diffMin / 60); const diffDay = Math.floor(diffHour / 24); if (diffDay > 0) return `${diffDay}days ago`; if (diffHour > 0) return `${diffHour}hours ago`; if (diffMin > 0) return `${diffMin}minutes ago`; return `${diffSec}seconds ago`; } /** * Format issue list as markdown */ export function formatIssues(issues: DiagnosticIssue[]): string { if (issues.length === 0) { return '✅ No issues found!'; } let result = `## 🔍 Detected Issues (${issues.length})\n\n`; // Severity별로 정렬 const sorted = [...issues].sort((a, b) => { const severityOrder = { critical: 0, high: 1, medium: 2, low: 3, info: 4 }; return severityOrder[a.severity] - severityOrder[b.severity]; }); for (const issue of sorted) { result += `### ${getSeverityEmoji(issue.severity)} ${issue.type}\n\n`; result += `**Severity**: ${issue.severity.toUpperCase()}\n\n`; result += `**Problem**: ${issue.message}\n\n`; result += `**Root Cause**: ${issue.rootCause}\n\n`; result += `**Solution**:\n${issue.solution}\n\n`; if (issue.relevantLogs && issue.relevantLogs.length > 0) { result += `**Related Logs**:\n\`\`\`\n${issue.relevantLogs.join('\n')}\n\`\`\`\n\n`; } if (issue.resource) { result += `**Resource**: ${issue.resource.kind}/${issue.resource.name} (ns: ${issue.resource.namespace})\n\n`; } result += '---\n\n'; } return result; } /** * Output diagnosis results as clean table */ export function createTable(headers: string[], rows: string[][]): string { const colWidths = headers.map((h, i) => { const maxRowWidth = Math.max(...rows.map(r => (r[i] || '').length)); return Math.max(h.length, maxRowWidth); }); let table = '| ' + headers.map((h, i) => h.padEnd(colWidths[i])).join(' | ') + ' |\n'; table += '| ' + colWidths.map(w => '-'.repeat(w)).join(' | ') + ' |\n'; for (const row of rows) { table += '| ' + row.map((cell, i) => (cell || '').padEnd(colWidths[i])).join(' | ') + ' |\n'; } return table; } /** * Display percent as progress bar * * 85% -> "████████░░ 85%" */ export function progressBar(percent: number, width: number = 10): string { const filled = Math.round((percent / 100) * width); const empty = width - filled; return '█'.repeat(filled) + '░'.repeat(empty) + ` ${percent.toFixed(1)}%`; }