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
}