package tui

import (
	"fmt"
	"strings"

	"github.com/charmbracelet/lipgloss"
)

var (
	listStyle   = lipgloss.NewStyle().Padding(0, 1)
	detailStyle = lipgloss.NewStyle().Padding(0, 1)
	statusStyle = lipgloss.NewStyle().Padding(0, 1).Foreground(lipgloss.Color("240")).Background(lipgloss.Color("236"))
)

// View renders the two-pane layout.
func (m Model) View() string {
	listView := m.list.View()

	var detail strings.Builder
	if len(m.hosts.Entries) > 0 {
		entry := m.hosts.Entries[m.list.Index()]
		status := "active"
		if !entry.Active {
			status = "inactive"
		}
		fmt.Fprintf(&detail, "IP: %s\n", entry.IP)
		fmt.Fprintf(&detail, "Host: %s\n", entry.Hostname)
		if len(entry.Aliases) > 0 {
			fmt.Fprintf(&detail, "Aliases: %s\n", strings.Join(entry.Aliases, ", "))
		}
		if entry.Comment != "" {
			fmt.Fprintf(&detail, "Comment: %s\n", entry.Comment)
		}
		fmt.Fprintf(&detail, "Status: %s", status)
	}

	left := listStyle.Width(m.width / 2).Height(m.height).Render(listView)
	right := detailStyle.Width(m.width - m.width/2).Height(m.height).Render(detail.String())
	panes := lipgloss.JoinHorizontal(lipgloss.Top, left, right)

	status := fmt.Sprintf("VIEW MODE • %d entries", len(m.hosts.Entries))
	bar := statusStyle.Width(m.width).Render(status)
	return lipgloss.JoinVertical(lipgloss.Left, panes, bar)
}