Alexander Renz
f69bfe7071
New features implemented: 1. Backup Catalog (internal/catalog/) - SQLite-based backup tracking - Gap detection and RPO monitoring - Search and statistics - Filesystem sync 2. DR Drill Testing (internal/drill/) - Automated restore testing in Docker containers - Database validation with custom queries - Catalog integration for drill-tested status 3. Smart Notifications (internal/notify/) - Event batching with configurable intervals - Time-based escalation policies - HTML/text/Slack templates 4. Compliance Reports (internal/report/) - SOC2, GDPR, HIPAA, PCI-DSS, ISO27001 frameworks - Evidence collection from catalog - JSON, Markdown, HTML output formats 5. RTO/RPO Calculator (internal/rto/) - Recovery objective analysis - RTO breakdown by phase - Recommendations for improvement 6. Replica-Aware Backup (internal/replica/) - Topology detection for PostgreSQL/MySQL - Automatic replica selection - Configurable selection strategies 7. Parallel Table Backup (internal/parallel/) - Concurrent table dumps - Worker pool with progress tracking - Large table optimization 8. MySQL/MariaDB PITR (internal/pitr/) - Binary log parsing and replay - Point-in-time recovery support - Transaction filtering CLI commands added: catalog, drill, report, rto All changes support the goal: reliable 3 AM database recovery.
498 lines
17 KiB
Go
498 lines
17 KiB
Go
// Package notify - Notification templates
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package notify
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import (
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"bytes"
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"fmt"
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"html/template"
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"strings"
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"time"
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)
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// TemplateType represents the notification format type
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type TemplateType string
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const (
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TemplateText TemplateType = "text"
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TemplateHTML TemplateType = "html"
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TemplateMarkdown TemplateType = "markdown"
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TemplateSlack TemplateType = "slack"
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)
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// Templates holds notification templates
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type Templates struct {
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Subject string
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TextBody string
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HTMLBody string
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}
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// DefaultTemplates returns default notification templates
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func DefaultTemplates() map[EventType]Templates {
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return map[EventType]Templates{
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EventBackupStarted: {
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Subject: "🔄 Backup Started: {{.Database}} on {{.Hostname}}",
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TextBody: backupStartedText,
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HTMLBody: backupStartedHTML,
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},
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EventBackupCompleted: {
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Subject: "✅ Backup Completed: {{.Database}} on {{.Hostname}}",
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TextBody: backupCompletedText,
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HTMLBody: backupCompletedHTML,
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},
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EventBackupFailed: {
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Subject: "❌ Backup FAILED: {{.Database}} on {{.Hostname}}",
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TextBody: backupFailedText,
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HTMLBody: backupFailedHTML,
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},
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EventRestoreStarted: {
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Subject: "🔄 Restore Started: {{.Database}} on {{.Hostname}}",
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TextBody: restoreStartedText,
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HTMLBody: restoreStartedHTML,
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},
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EventRestoreCompleted: {
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Subject: "✅ Restore Completed: {{.Database}} on {{.Hostname}}",
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TextBody: restoreCompletedText,
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HTMLBody: restoreCompletedHTML,
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},
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EventRestoreFailed: {
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Subject: "❌ Restore FAILED: {{.Database}} on {{.Hostname}}",
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TextBody: restoreFailedText,
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HTMLBody: restoreFailedHTML,
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},
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EventVerificationPassed: {
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Subject: "✅ Verification Passed: {{.Database}}",
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TextBody: verificationPassedText,
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HTMLBody: verificationPassedHTML,
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},
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EventVerificationFailed: {
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Subject: "❌ Verification FAILED: {{.Database}}",
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TextBody: verificationFailedText,
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HTMLBody: verificationFailedHTML,
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},
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EventDRDrillPassed: {
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Subject: "✅ DR Drill Passed: {{.Database}}",
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TextBody: drDrillPassedText,
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HTMLBody: drDrillPassedHTML,
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},
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EventDRDrillFailed: {
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Subject: "❌ DR Drill FAILED: {{.Database}}",
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TextBody: drDrillFailedText,
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HTMLBody: drDrillFailedHTML,
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},
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}
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}
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// Template strings
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const backupStartedText = `
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Backup Operation Started
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Started At: {{formatTime .Timestamp}}
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{{if .Message}}{{.Message}}{{end}}
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`
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const backupStartedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #3498db;">🔄 Backup Started</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Started At:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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</table>
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{{if .Message}}<p style="margin-top: 20px;">{{.Message}}</p>{{end}}
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</div>
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`
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const backupCompletedText = `
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Backup Operation Completed Successfully
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Completed: {{formatTime .Timestamp}}
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{{with .Details}}
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{{if .size}}Size: {{.size}}{{end}}
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{{if .duration}}Duration: {{.duration}}{{end}}
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{{if .path}}Path: {{.path}}{{end}}
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{{end}}
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{{if .Message}}{{.Message}}{{end}}
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`
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const backupCompletedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #27ae60;">✅ Backup Completed</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Completed:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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{{with .Details}}
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{{if .size}}<tr><td style="padding: 8px; font-weight: bold;">Size:</td><td style="padding: 8px;">{{.size}}</td></tr>{{end}}
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{{if .duration}}<tr><td style="padding: 8px; font-weight: bold;">Duration:</td><td style="padding: 8px;">{{.duration}}</td></tr>{{end}}
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{{if .path}}<tr><td style="padding: 8px; font-weight: bold;">Path:</td><td style="padding: 8px;">{{.path}}</td></tr>{{end}}
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{{end}}
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</table>
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{{if .Message}}<p style="margin-top: 20px; color: #27ae60;">{{.Message}}</p>{{end}}
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</div>
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`
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const backupFailedText = `
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⚠️ BACKUP FAILED ⚠️
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Failed At: {{formatTime .Timestamp}}
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{{if .Error}}
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Error: {{.Error}}
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{{end}}
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{{if .Message}}{{.Message}}{{end}}
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Please investigate immediately.
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`
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const backupFailedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #e74c3c;">❌ Backup FAILED</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Failed At:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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{{if .Error}}<tr><td style="padding: 8px; font-weight: bold; color: #e74c3c;">Error:</td><td style="padding: 8px; color: #e74c3c;">{{.Error}}</td></tr>{{end}}
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</table>
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{{if .Message}}<p style="margin-top: 20px;">{{.Message}}</p>{{end}}
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<p style="margin-top: 20px; color: #e74c3c; font-weight: bold;">Please investigate immediately.</p>
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</div>
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`
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const restoreStartedText = `
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Restore Operation Started
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Started At: {{formatTime .Timestamp}}
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{{if .Message}}{{.Message}}{{end}}
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`
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const restoreStartedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #3498db;">🔄 Restore Started</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Started At:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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</table>
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{{if .Message}}<p style="margin-top: 20px;">{{.Message}}</p>{{end}}
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</div>
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`
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const restoreCompletedText = `
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Restore Operation Completed Successfully
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Completed: {{formatTime .Timestamp}}
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{{with .Details}}
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{{if .duration}}Duration: {{.duration}}{{end}}
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{{end}}
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{{if .Message}}{{.Message}}{{end}}
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`
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const restoreCompletedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #27ae60;">✅ Restore Completed</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Completed:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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{{with .Details}}
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{{if .duration}}<tr><td style="padding: 8px; font-weight: bold;">Duration:</td><td style="padding: 8px;">{{.duration}}</td></tr>{{end}}
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{{end}}
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</table>
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{{if .Message}}<p style="margin-top: 20px; color: #27ae60;">{{.Message}}</p>{{end}}
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</div>
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`
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const restoreFailedText = `
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⚠️ RESTORE FAILED ⚠️
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Failed At: {{formatTime .Timestamp}}
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{{if .Error}}
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Error: {{.Error}}
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{{end}}
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{{if .Message}}{{.Message}}{{end}}
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Please investigate immediately.
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`
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const restoreFailedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #e74c3c;">❌ Restore FAILED</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Failed At:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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{{if .Error}}<tr><td style="padding: 8px; font-weight: bold; color: #e74c3c;">Error:</td><td style="padding: 8px; color: #e74c3c;">{{.Error}}</td></tr>{{end}}
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</table>
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{{if .Message}}<p style="margin-top: 20px;">{{.Message}}</p>{{end}}
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<p style="margin-top: 20px; color: #e74c3c; font-weight: bold;">Please investigate immediately.</p>
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</div>
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`
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const verificationPassedText = `
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Backup Verification Passed
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Verified: {{formatTime .Timestamp}}
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{{with .Details}}
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{{if .checksum}}Checksum: {{.checksum}}{{end}}
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{{end}}
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{{if .Message}}{{.Message}}{{end}}
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`
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const verificationPassedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #27ae60;">✅ Verification Passed</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Verified:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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{{with .Details}}
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{{if .checksum}}<tr><td style="padding: 8px; font-weight: bold;">Checksum:</td><td style="padding: 8px; font-family: monospace;">{{.checksum}}</td></tr>{{end}}
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{{end}}
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</table>
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{{if .Message}}<p style="margin-top: 20px; color: #27ae60;">{{.Message}}</p>{{end}}
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</div>
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`
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const verificationFailedText = `
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⚠️ VERIFICATION FAILED ⚠️
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Failed At: {{formatTime .Timestamp}}
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{{if .Error}}
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Error: {{.Error}}
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{{end}}
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{{if .Message}}{{.Message}}{{end}}
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Backup integrity may be compromised. Please investigate.
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`
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const verificationFailedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #e74c3c;">❌ Verification FAILED</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Failed At:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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{{if .Error}}<tr><td style="padding: 8px; font-weight: bold; color: #e74c3c;">Error:</td><td style="padding: 8px; color: #e74c3c;">{{.Error}}</td></tr>{{end}}
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</table>
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{{if .Message}}<p style="margin-top: 20px;">{{.Message}}</p>{{end}}
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<p style="margin-top: 20px; color: #e74c3c; font-weight: bold;">Backup integrity may be compromised. Please investigate.</p>
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</div>
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`
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const drDrillPassedText = `
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DR Drill Test Passed
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Tested At: {{formatTime .Timestamp}}
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{{with .Details}}
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{{if .tables_restored}}Tables: {{.tables_restored}}{{end}}
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{{if .rows_validated}}Rows: {{.rows_validated}}{{end}}
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{{if .duration}}Duration: {{.duration}}{{end}}
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{{end}}
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{{if .Message}}{{.Message}}{{end}}
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Backup restore capability verified.
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`
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const drDrillPassedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #27ae60;">✅ DR Drill Passed</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Tested At:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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{{with .Details}}
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{{if .tables_restored}}<tr><td style="padding: 8px; font-weight: bold;">Tables:</td><td style="padding: 8px;">{{.tables_restored}}</td></tr>{{end}}
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{{if .rows_validated}}<tr><td style="padding: 8px; font-weight: bold;">Rows:</td><td style="padding: 8px;">{{.rows_validated}}</td></tr>{{end}}
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{{if .duration}}<tr><td style="padding: 8px; font-weight: bold;">Duration:</td><td style="padding: 8px;">{{.duration}}</td></tr>{{end}}
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{{end}}
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</table>
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{{if .Message}}<p style="margin-top: 20px; color: #27ae60;">{{.Message}}</p>{{end}}
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<p style="margin-top: 20px; color: #27ae60;">✓ Backup restore capability verified</p>
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</div>
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`
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const drDrillFailedText = `
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⚠️ DR DRILL FAILED ⚠️
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Database: {{.Database}}
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Hostname: {{.Hostname}}
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Failed At: {{formatTime .Timestamp}}
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{{if .Error}}
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Error: {{.Error}}
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{{end}}
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{{if .Message}}{{.Message}}{{end}}
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Backup may not be restorable. Please investigate immediately.
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`
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const drDrillFailedHTML = `
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<div style="font-family: Arial, sans-serif; padding: 20px;">
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<h2 style="color: #e74c3c;">❌ DR Drill FAILED</h2>
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<table style="border-collapse: collapse; width: 100%; max-width: 600px;">
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<tr><td style="padding: 8px; font-weight: bold;">Database:</td><td style="padding: 8px;">{{.Database}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Hostname:</td><td style="padding: 8px;">{{.Hostname}}</td></tr>
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<tr><td style="padding: 8px; font-weight: bold;">Failed At:</td><td style="padding: 8px;">{{formatTime .Timestamp}}</td></tr>
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{{if .Error}}<tr><td style="padding: 8px; font-weight: bold; color: #e74c3c;">Error:</td><td style="padding: 8px; color: #e74c3c;">{{.Error}}</td></tr>{{end}}
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</table>
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{{if .Message}}<p style="margin-top: 20px;">{{.Message}}</p>{{end}}
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<p style="margin-top: 20px; color: #e74c3c; font-weight: bold;">Backup may not be restorable. Please investigate immediately.</p>
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</div>
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`
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// TemplateRenderer renders notification templates
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type TemplateRenderer struct {
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templates map[EventType]Templates
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funcMap template.FuncMap
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}
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// NewTemplateRenderer creates a new template renderer
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func NewTemplateRenderer() *TemplateRenderer {
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return &TemplateRenderer{
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templates: DefaultTemplates(),
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funcMap: template.FuncMap{
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"formatTime": func(t time.Time) string {
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return t.Format("2006-01-02 15:04:05 MST")
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},
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"upper": strings.ToUpper,
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"lower": strings.ToLower,
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},
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}
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}
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// RenderSubject renders the subject template for an event
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func (r *TemplateRenderer) RenderSubject(event *Event) (string, error) {
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tmpl, ok := r.templates[event.Type]
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if !ok {
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return fmt.Sprintf("[%s] %s: %s", event.Severity, event.Type, event.Database), nil
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}
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return r.render(tmpl.Subject, event)
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}
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// RenderText renders the text body template for an event
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func (r *TemplateRenderer) RenderText(event *Event) (string, error) {
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tmpl, ok := r.templates[event.Type]
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if !ok {
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return event.Message, nil
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}
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return r.render(tmpl.TextBody, event)
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}
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// RenderHTML renders the HTML body template for an event
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func (r *TemplateRenderer) RenderHTML(event *Event) (string, error) {
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tmpl, ok := r.templates[event.Type]
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if !ok {
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return fmt.Sprintf("<p>%s</p>", event.Message), nil
|
|
}
|
|
|
|
return r.render(tmpl.HTMLBody, event)
|
|
}
|
|
|
|
// render executes a template with the given event
|
|
func (r *TemplateRenderer) render(templateStr string, event *Event) (string, error) {
|
|
tmpl, err := template.New("notification").Funcs(r.funcMap).Parse(templateStr)
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to parse template: %w", err)
|
|
}
|
|
|
|
var buf bytes.Buffer
|
|
if err := tmpl.Execute(&buf, event); err != nil {
|
|
return "", fmt.Errorf("failed to execute template: %w", err)
|
|
}
|
|
|
|
return strings.TrimSpace(buf.String()), nil
|
|
}
|
|
|
|
// SetTemplate sets a custom template for an event type
|
|
func (r *TemplateRenderer) SetTemplate(eventType EventType, templates Templates) {
|
|
r.templates[eventType] = templates
|
|
}
|
|
|
|
// RenderSlackMessage creates a Slack-formatted message
|
|
func (r *TemplateRenderer) RenderSlackMessage(event *Event) map[string]interface{} {
|
|
color := "#3498db" // blue
|
|
switch event.Severity {
|
|
case SeveritySuccess:
|
|
color = "#27ae60" // green
|
|
case SeverityWarning:
|
|
color = "#f39c12" // orange
|
|
case SeverityError, SeverityCritical:
|
|
color = "#e74c3c" // red
|
|
}
|
|
|
|
fields := []map[string]interface{}{
|
|
{
|
|
"title": "Database",
|
|
"value": event.Database,
|
|
"short": true,
|
|
},
|
|
{
|
|
"title": "Hostname",
|
|
"value": event.Hostname,
|
|
"short": true,
|
|
},
|
|
{
|
|
"title": "Event",
|
|
"value": string(event.Type),
|
|
"short": true,
|
|
},
|
|
{
|
|
"title": "Severity",
|
|
"value": string(event.Severity),
|
|
"short": true,
|
|
},
|
|
}
|
|
|
|
if event.Error != "" {
|
|
fields = append(fields, map[string]interface{}{
|
|
"title": "Error",
|
|
"value": event.Error,
|
|
"short": false,
|
|
})
|
|
}
|
|
|
|
for key, value := range event.Details {
|
|
fields = append(fields, map[string]interface{}{
|
|
"title": key,
|
|
"value": value,
|
|
"short": true,
|
|
})
|
|
}
|
|
|
|
subject, _ := r.RenderSubject(event)
|
|
|
|
return map[string]interface{}{
|
|
"attachments": []map[string]interface{}{
|
|
{
|
|
"color": color,
|
|
"title": subject,
|
|
"text": event.Message,
|
|
"fields": fields,
|
|
"footer": "dbbackup",
|
|
"ts": event.Timestamp.Unix(),
|
|
"mrkdwn_in": []string{"text", "fields"},
|
|
},
|
|
},
|
|
}
|
|
}
|