83 lines
1.8 KiB
Go
83 lines
1.8 KiB
Go
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package pdfrender
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import (
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"os"
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"path/filepath"
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"regexp"
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"strings"
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"time"
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)
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// SanitizeFilename removes or replaces characters that are problematic in filenames
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func SanitizeFilename(name string) string {
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// Replace umlauts
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replacements := map[string]string{
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"ä": "ae", "Ä": "Ae",
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"ö": "oe", "Ö": "Oe",
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"ü": "ue", "Ü": "Ue",
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"ß": "ss",
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}
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result := name
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for old, new := range replacements {
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result = strings.ReplaceAll(result, old, new)
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}
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// Replace problematic characters with underscore
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reg := regexp.MustCompile(`[^a-zA-Z0-9_.-]+`)
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result = reg.ReplaceAllString(result, "_")
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// Remove consecutive underscores
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reg = regexp.MustCompile(`_+`)
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result = reg.ReplaceAllString(result, "_")
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// Trim underscores from start and end
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result = strings.Trim(result, "_")
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return result
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}
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// GenerateExportFilename creates a filename from character name and timestamp
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func GenerateExportFilename(charName string, timestamp time.Time) string {
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sanitizedName := SanitizeFilename(charName)
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timeStr := timestamp.Format("20060102_150405")
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return sanitizedName + "_" + timeStr + ".pdf"
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}
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// EnsureExportTempDir creates the export temp directory if it doesn't exist
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func EnsureExportTempDir(dir string) error {
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return os.MkdirAll(dir, 0755)
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}
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// CleanupOldFiles removes files older than maxAge from the directory
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// Returns the number of files deleted
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func CleanupOldFiles(dir string, maxAge time.Duration) (int, error) {
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entries, err := os.ReadDir(dir)
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if err != nil {
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return 0, err
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}
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count := 0
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cutoff := time.Now().Add(-maxAge)
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for _, entry := range entries {
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if entry.IsDir() {
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continue
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}
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filePath := filepath.Join(dir, entry.Name())
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info, err := entry.Info()
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if err != nil {
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continue
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}
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if info.ModTime().Before(cutoff) {
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if err := os.Remove(filePath); err == nil {
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count++
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}
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}
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}
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return count, nil
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}
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