ac1bb1d97b
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Add complete Academy backend (Go) and frontend (Next.js) for DSGVO/IT-Security/AI-Literacy compliance training: - Go backend: Course CRUD, enrollments, quiz evaluation, PDF certificates (gofpdf), video generation pipeline (ElevenLabs + HeyGen) - In-memory data store with PostgreSQL migration for future DB support - Frontend: Course creation (AI + manual), lesson viewer, interactive quiz, certificate viewer with PDF download - Fix existing compile errors in generate.go (SearchResult type mismatch), llm/service.go (unused var), rag/service.go (Unicode chars) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
153 lines
4.4 KiB
Go
153 lines
4.4 KiB
Go
package academy
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import (
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"bytes"
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"fmt"
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"time"
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"github.com/jung-kurt/gofpdf"
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)
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// CertificateData holds all data needed to generate a certificate PDF
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type CertificateData struct {
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CertificateID string
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UserName string
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CourseName string
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CompanyName string
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Score int
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IssuedAt time.Time
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ValidUntil time.Time
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}
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// GenerateCertificatePDF generates a PDF certificate and returns the bytes
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func GenerateCertificatePDF(data CertificateData) ([]byte, error) {
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pdf := gofpdf.New("L", "mm", "A4", "") // Landscape A4
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pdf.SetAutoPageBreak(false, 0)
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pdf.AddPage()
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pageWidth, pageHeight := pdf.GetPageSize()
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// Background color - light gray
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pdf.SetFillColor(250, 250, 252)
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pdf.Rect(0, 0, pageWidth, pageHeight, "F")
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// Border - decorative
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pdf.SetDrawColor(79, 70, 229) // Purple/Indigo
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pdf.SetLineWidth(3)
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pdf.Rect(10, 10, pageWidth-20, pageHeight-20, "D")
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pdf.SetLineWidth(1)
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pdf.Rect(14, 14, pageWidth-28, pageHeight-28, "D")
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// Header - Company/BreakPilot Logo area
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companyName := data.CompanyName
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if companyName == "" {
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companyName = "BreakPilot Compliance"
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}
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pdf.SetFont("Helvetica", "", 12)
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pdf.SetTextColor(120, 120, 120)
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pdf.SetXY(0, 25)
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pdf.CellFormat(pageWidth, 10, companyName, "", 0, "C", false, 0, "")
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// Title
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pdf.SetFont("Helvetica", "B", 32)
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pdf.SetTextColor(30, 30, 30)
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pdf.SetXY(0, 42)
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pdf.CellFormat(pageWidth, 15, "SCHULUNGSZERTIFIKAT", "", 0, "C", false, 0, "")
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// Decorative line
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pdf.SetDrawColor(79, 70, 229)
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pdf.SetLineWidth(1.5)
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lineY := 62.0
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pdf.Line(pageWidth/2-60, lineY, pageWidth/2+60, lineY)
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// "Hiermit wird bescheinigt, dass"
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pdf.SetFont("Helvetica", "", 13)
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pdf.SetTextColor(80, 80, 80)
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pdf.SetXY(0, 72)
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pdf.CellFormat(pageWidth, 8, "Hiermit wird bescheinigt, dass", "", 0, "C", false, 0, "")
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// Name
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pdf.SetFont("Helvetica", "B", 26)
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pdf.SetTextColor(30, 30, 30)
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pdf.SetXY(0, 85)
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pdf.CellFormat(pageWidth, 12, data.UserName, "", 0, "C", false, 0, "")
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// "die folgende Compliance-Schulung erfolgreich abgeschlossen hat:"
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pdf.SetFont("Helvetica", "", 13)
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pdf.SetTextColor(80, 80, 80)
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pdf.SetXY(0, 103)
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pdf.CellFormat(pageWidth, 8, "die folgende Compliance-Schulung erfolgreich abgeschlossen hat:", "", 0, "C", false, 0, "")
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// Course Name
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pdf.SetFont("Helvetica", "B", 20)
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pdf.SetTextColor(79, 70, 229)
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pdf.SetXY(0, 116)
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pdf.CellFormat(pageWidth, 10, data.CourseName, "", 0, "C", false, 0, "")
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// Score
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if data.Score > 0 {
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pdf.SetFont("Helvetica", "", 12)
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pdf.SetTextColor(80, 80, 80)
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pdf.SetXY(0, 130)
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pdf.CellFormat(pageWidth, 8, fmt.Sprintf("Testergebnis: %d%%", data.Score), "", 0, "C", false, 0, "")
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}
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// Bottom section - Dates and Signature
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bottomY := 148.0
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// Left: Issued Date
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pdf.SetFont("Helvetica", "", 10)
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pdf.SetTextColor(100, 100, 100)
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pdf.SetXY(40, bottomY)
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pdf.CellFormat(80, 6, fmt.Sprintf("Abschlussdatum: %s", data.IssuedAt.Format("02.01.2006")), "", 0, "L", false, 0, "")
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// Center: Valid Until
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pdf.SetXY(pageWidth/2-40, bottomY)
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pdf.CellFormat(80, 6, fmt.Sprintf("Gueltig bis: %s", data.ValidUntil.Format("02.01.2006")), "", 0, "C", false, 0, "")
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// Right: Certificate ID
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pdf.SetXY(pageWidth-120, bottomY)
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pdf.CellFormat(80, 6, fmt.Sprintf("Zertifikats-Nr.: %s", data.CertificateID[:min(12, len(data.CertificateID))]), "", 0, "R", false, 0, "")
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// Signature line
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sigY := 162.0
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pdf.SetDrawColor(150, 150, 150)
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pdf.SetLineWidth(0.5)
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// Left signature
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pdf.Line(50, sigY, 130, sigY)
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pdf.SetFont("Helvetica", "", 9)
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pdf.SetTextColor(120, 120, 120)
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pdf.SetXY(50, sigY+2)
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pdf.CellFormat(80, 5, "Datenschutzbeauftragter", "", 0, "C", false, 0, "")
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// Right signature
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pdf.Line(pageWidth-130, sigY, pageWidth-50, sigY)
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pdf.SetXY(pageWidth-130, sigY+2)
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pdf.CellFormat(80, 5, "Geschaeftsfuehrung", "", 0, "C", false, 0, "")
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// Footer
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pdf.SetFont("Helvetica", "", 8)
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pdf.SetTextColor(160, 160, 160)
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pdf.SetXY(0, pageHeight-22)
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pdf.CellFormat(pageWidth, 5, "Dieses Zertifikat wurde elektronisch erstellt und ist ohne Unterschrift gueltig.", "", 0, "C", false, 0, "")
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pdf.SetXY(0, pageHeight-17)
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pdf.CellFormat(pageWidth, 5, fmt.Sprintf("Verifizierung unter: https://compliance.breakpilot.de/verify/%s", data.CertificateID), "", 0, "C", false, 0, "")
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// Generate PDF bytes
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var buf bytes.Buffer
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if err := pdf.Output(&buf); err != nil {
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return nil, fmt.Errorf("failed to generate PDF: %w", err)
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}
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return buf.Bytes(), nil
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}
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func min(a, b int) int {
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if a < b {
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return a
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}
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return b
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}
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