Breite im Terminal begrenzen

internal/formatter/table.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io"
 	"strings"
+	"unicode/utf8"
 
 	"royalroadupdates/internal/royalroad"
 )
@@ -17,17 +18,46 @@ func PrintTable(w io.Writer, stories []royalroad.Story) {
 	nameHeader := "Story Name"
 	updateHeader := "Last Update"
 
-	maxNameLen := len(nameHeader)
+	// 1. Measure natural widths in runes
+	maxNameLen := utf8.RuneCountInString(nameHeader)
+	maxUpdateLen := utf8.RuneCountInString(updateHeader)
+
 	for _, s := range stories {
-		if l := len(s.Name); l > maxNameLen {
+		if l := utf8.RuneCountInString(s.Name); l > maxNameLen {
 			maxNameLen = l
 		}
+		if l := utf8.RuneCountInString(Relative(s.DateModified)); l > maxUpdateLen {
+			maxUpdateLen = l
+		}
 	}
 
-	fmt.Fprintf(w, "%-*s  %s\n", maxNameLen, nameHeader, updateHeader)
-	fmt.Fprintf(w, "%s  %s\n", strings.Repeat("-", maxNameLen), strings.Repeat("-", len(updateHeader)))
+	// 2. Determine final name column width based on terminal availability
+	nameWidth := maxNameLen
+	const minNameWidth = 30
+	const gutter = 2
+
+	termWidth, err := getTerminalWidth()
+	if err == nil {
+		// We have a terminal. check if it's wide enough to support a cap above the min.
+		if termWidth >= minNameWidth+gutter+maxUpdateLen {
+			availableForName := termWidth - gutter - maxUpdateLen
+			if nameWidth > availableForName {
+				nameWidth = availableForName
+			}
+		}
+	}
+
+	// 3. Render Table
+	fmt.Fprintf(w, "%-*s  %s\n", nameWidth, nameHeader, updateHeader)
+	fmt.Fprintf(w, "%s  %s\n", strings.Repeat("-", nameWidth), strings.Repeat("-", maxUpdateLen))
 
 	for _, s := range stories {
-		fmt.Fprintf(w, "%-*s  %s\n", maxNameLen, s.Name, Relative(s.DateModified))
+		displayName := s.Name
+		runeName := []rune(displayName)
+		if len(runeName) > nameWidth {
+			// Truncate to (nameWidth - 3) and add ellipsis
+			displayName = string(runeName[:nameWidth-3]) + "..."
+		}
+		fmt.Fprintf(w, "%-*s  %s\n", nameWidth, displayName, Relative(s.DateModified))
 	}
 }