package ui

import "github.com/charmbracelet/lipgloss"

// ThemeMode represents the UI theme mode.
type ThemeMode int

const (
	ThemeAuto ThemeMode = iota
	ThemeLight
	ThemeDark
)

// Styles centralizes all lipgloss styling.
// Keep these simple: excessive styling can slow rendering at high row counts.

type Styles struct {
	HeaderBar    lipgloss.Style
	HeaderKey    lipgloss.Style
	HeaderVal    lipgloss.Style
	FilterActive lipgloss.Style

	TableHeader lipgloss.Style
	TableCell   lipgloss.Style

	P0 lipgloss.Style
	P1 lipgloss.Style
	P2 lipgloss.Style
	P3 lipgloss.Style

	StateOpen lipgloss.Style
	StateAck  lipgloss.Style
	StateRes  lipgloss.Style

	DetailsTitle lipgloss.Style
	DetailsBody  lipgloss.Style
	Muted        lipgloss.Style
	Error        lipgloss.Style
}

// LightTheme returns light theme styles.
func LightTheme() Styles {
	base := lipgloss.NewStyle()
	muted := base.Foreground(lipgloss.Color("8"))

	return Styles{
		HeaderBar: base.
			Background(lipgloss.Color("236")).
			Foreground(lipgloss.Color("252")).
			Padding(0, 1),
		HeaderKey:    base.Foreground(lipgloss.Color("250")).Bold(true),
		HeaderVal:    base.Foreground(lipgloss.Color("254")),
		FilterActive: base.Bold(true).Foreground(lipgloss.Color("46")),

		TableHeader: base.Foreground(lipgloss.Color("252")).Bold(true),
		TableCell:   base.Foreground(lipgloss.Color("252")),

		P0: base.Foreground(lipgloss.Color("9")).Bold(true),
		P1: base.Foreground(lipgloss.Color("208")).Bold(true),
		P2: base.Foreground(lipgloss.Color("11")),
		P3: base.Foreground(lipgloss.Color("10")),

		StateOpen: base.Foreground(lipgloss.Color("252")),
		StateAck:  base.Foreground(lipgloss.Color("14")),
		StateRes:  muted,

		DetailsTitle: base.Bold(true).Foreground(lipgloss.Color("252")),
		DetailsBody:  base.Foreground(lipgloss.Color("252")),
		Muted:        muted,
		Error:        base.Foreground(lipgloss.Color("9")),
	}
}

// DarkTheme returns dark theme styles with better contrast.
func DarkTheme() Styles {
	base := lipgloss.NewStyle()
	muted := base.Foreground(lipgloss.Color("245"))

	return Styles{
		HeaderBar: base.
			Background(lipgloss.Color("238")).
			Foreground(lipgloss.Color("231")).
			Padding(0, 1),
		HeaderKey:    base.Foreground(lipgloss.Color("159")).Bold(true),
		HeaderVal:    base.Foreground(lipgloss.Color("231")),
		FilterActive: base.Bold(true).Foreground(lipgloss.Color("84")),

		TableHeader: base.Foreground(lipgloss.Color("231")).Bold(true),
		TableCell:   base.Foreground(lipgloss.Color("231")),

		P0: base.Foreground(lipgloss.Color("203")).Bold(true),
		P1: base.Foreground(lipgloss.Color("229")).Bold(true),
		P2: base.Foreground(lipgloss.Color("48")),
		P3: base.Foreground(lipgloss.Color("42")),

		StateOpen: base.Foreground(lipgloss.Color("231")),
		StateAck:  base.Foreground(lipgloss.Color("48")),
		StateRes:  muted,

		DetailsTitle: base.Bold(true).Foreground(lipgloss.Color("231")),
		DetailsBody:  base.Foreground(lipgloss.Color("231")),
		Muted:        muted,
		Error:        base.Foreground(lipgloss.Color("203")),
	}
}

func defaultStyles() Styles {
	// Default to light theme for backwards compatibility
	return LightTheme()
}

func defaultStylesForMode(themeMode ThemeMode) Styles {
	switch themeMode {
	case ThemeLight:
		return LightTheme()
	case ThemeDark:
		return DarkTheme()
	default:
		// Auto mode defaults to light theme
		return LightTheme()
	}
}