Execute PLAN_CLI.md

cmd/cli/format.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"strings"
+	"text/tabwriter"
+	"time"
+)
+
+// printTable writes a formatted table with tabwriter. The first row is treated
+// as the header and separated from data rows by a rule of dashes.
+func printTable(w io.Writer, rows [][]string) {
+	if len(rows) == 0 {
+		return
+	}
+	tw := tabwriter.NewWriter(w, 0, 0, 2, ' ', 0)
+	for i, row := range rows {
+		fmt.Fprintln(tw, strings.Join(row, "\t"))
+		if i == 0 {
+			// Print a divider matching the header width.
+			dashes := make([]string, len(row))
+			for j, h := range row {
+				dashes[j] = strings.Repeat("-", len(h))
+			}
+			fmt.Fprintln(tw, strings.Join(dashes, "\t"))
+		}
+	}
+	tw.Flush()
+}
+
+// fmtCount formats a count with a space as the thousands separator.
+// e.g. 1234567 → "1 234 567"
+func fmtCount(n int64) string {
+	s := fmt.Sprintf("%d", n)
+	if len(s) <= 3 {
+		return s
+	}
+	var b strings.Builder
+	start := len(s) % 3
+	if start > 0 {
+		b.WriteString(s[:start])
+	}
+	for i := start; i < len(s); i += 3 {
+		if i > 0 {
+			b.WriteByte(' ')
+		}
+		b.WriteString(s[i : i+3])
+	}
+	return b.String()
+}
+
+// fmtTime formats a unix timestamp as "2006-01-02 15:04" UTC.
+func fmtTime(unix int64) string {
+	return time.Unix(unix, 0).UTC().Format("2006-01-02 15:04")
+}
+
+// targetHeader returns the header line to print before each target's results.
+// Returns empty string when there is only one target (clean single-target output).
+func targetHeader(target, source string, nTargets int) string {
+	if nTargets <= 1 {
+		return ""
+	}
+	if source != "" && source != target {
+		return fmt.Sprintf("=== %s (%s) ===", source, target)
+	}
+	return fmt.Sprintf("=== %s ===", target)
+}