package tui

import (
	"fmt"
	"strings"

	"github.com/charmbracelet/lipgloss"
	"github.com/muyue/muyue/internal/version"
)

func (m Model) renderFooter() string {
	profile := "unknown"
	if m.config != nil && m.config.Profile.Pseudo != "" {
		profile = m.config.Profile.Pseudo
	}

	left := fmt.Sprintf(" %s@%s",
		lipgloss.NewStyle().Foreground(cyberRed).Bold(true).Render(profile),
		lipgloss.NewStyle().Foreground(dimRed).Render(version.Name))
	leftR := statusBarStyle.Render(left)

	var helpText string
	switch m.activeTab {
	case tabDashboard:
		helpText = "[i] install  [u] update  [s] scan  [ctrl+t] tabs"
	case tabStudio:
		helpText = "[enter] send  [ctrl+s] sidebar  [ctrl+t] tabs"
	case tabShell:
		helpText = "[enter] run  [ctrl+a] AI panel  [ctrl+c] kill"
	case tabConfig:
		helpText = "[up/down] sections  [ctrl+t] tabs"
	default:
		helpText = "[ctrl+t] tabs  [ctrl+c] quit"
	}
	rightR := statusBarStyle.Render(helpText)

	updateIndicator := ""
	if len(m.updateStatus) > 0 {
		needsUpdate := false
		for _, s := range m.updateStatus {
			if s.NeedsUpdate {
				needsUpdate = true
				break
			}
		}
		if needsUpdate {
			updateIndicator = lipgloss.NewStyle().Foreground(warnAmber).Render(" [UPD] ")
		} else {
			updateIndicator = lipgloss.NewStyle().Foreground(successGreen).Render(" [OK] ")
		}
	}

	verStr := lipgloss.NewStyle().Foreground(dimRed).Render("v" + version.Version)
	midContent := lipgloss.NewStyle().Background(bgSurface).Padding(0, 1).Render(
		updateIndicator + verStr,
	)

	gap := m.width - lipgloss.Width(leftR) - lipgloss.Width(rightR) - lipgloss.Width(midContent)
	if gap < 0 {
		gap = 0
	}

	statusLine := lipgloss.JoinHorizontal(lipgloss.Bottom,
		leftR,
		strings.Repeat(" ", gap),
		midContent,
		rightR,
	)

	helpLine := lipgloss.NewStyle().Background(bgSurface).Foreground(textMuted).Render(
		lipgloss.NewStyle().Padding(0, 1).Render(m.helpModel.View(keys)))

	return lipgloss.JoinVertical(lipgloss.Left, statusLine, helpLine)
}