feat: a Fields pane for anything but a secret, first for Azure accounts: fields and groups to move through, filter and copy (#7)

internal/ui/panes/fields.go

@@ -0,0 +1,67 @@
+package panes
+
+import (
+	"fmt"
+
+	"github.com/charmbracelet/x/ansi"
+
+	"git.kebcloud.no/keb/lazysecrets/internal/ui/styles"
+)
+
+// Fields is the fourth pane for anything but a secret (an account, and
+// what describes vaults, scopes and files): labelled values, one per row,
+// a label on the first of several values, to move through, filter and
+// copy from. It's a List, so / filters it like the other panes. Secrets
+// have Detail, for revealing and versions.
+type Fields struct {
+	List[Field]
+}
+
+// Field is a row: a value under a label. Info rows (loading, errors)
+// can't be copied.
+type Field struct {
+	Label, Value string
+	Info         bool
+}
+
+func NewFields() Fields {
+	l := NewList("", Item[Field]{
+		ID:     func(f Field) string { return f.Label + "\x00" + f.Value },
+		Filter: func(f Field) string { return f.Value },
+		// "/tenant" finds the tenant's rows.
+		FilterExtra: func(f Field) string { return f.Label },
+		Render: func(st styles.Styles, f Field, width int) string {
+			value := f.Value
+			if f.Info {
+				value = st.Muted.Render(value)
+			}
+			return ansi.Truncate(st.Label.Render(fmt.Sprintf("%-10s", f.Label))+" "+value, width, "…")
+		},
+	})
+	l.Empty = "nothing to show"
+	return Fields{l}
+}
+
+// Set shows fields under title. Another title (another account or vault)
+// starts over, without a filter.
+func (s *Fields) Set(title string, fields []Field) {
+	if title != s.Title {
+		s.Reset()
+		s.Title = title
+	}
+	if len(fields) > 0 || len(s.Items()) > 0 {
+		s.SetItems(fields)
+	}
+}
+
+// Shown reports whether there's anything to show.
+func (s Fields) Shown() bool { return len(s.Items()) > 0 }
+
+// Selected is the field under the cursor, unless it's an info row.
+func (s Fields) Selected() (Field, bool) {
+	f, ok := s.List.Selected()
+	if !ok || f.Info {
+		return Field{}, false
+	}
+	return f, true
+}