package main

import (
	"fmt"

	"github.com/charmbracelet/lipgloss"
)

var currentThemeName = "dark"

func applyTheme(name string) error {
	colorEnabled = true
	switch name {
	case "dark":
		titleStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#F0B72F"))
		dimStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#777777"))
		activeStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#FFFFFF")).Background(lipgloss.Color("#3B4261"))
		okStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#67C587"))
		warnStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#E5C07B"))
		badStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#E06C75"))
		editorLineStyle = lipgloss.NewStyle().
			Foreground(lipgloss.Color("#D7DAE8")).
			Background(lipgloss.Color("#2C3045"))
		paneInactiveColor = lipgloss.Color("#50566F")
		paneActiveColor = lipgloss.Color("#F0B72F")
		authorPalette = []lipgloss.Color{
			"#61AFEF", "#C678DD", "#56B6C2", "#E5C07B",
			"#E06C75", "#98C379", "#D19A66", "#7FC8FF",
		}
		codeHighlightTheme = "github-dark"
		markdownStyleName = "dark"
		quoteRailStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#777777"))
		selectedLineBackground = "\x1b[48;5;24m"
		suggestionRemoveBackground = "\x1b[48;5;52m"
		suggestionAddBackground = "\x1b[48;5;22m"
		changedRemoveBackground = "\x1b[48;2;55;0;0m"
		changedAddBackground = "\x1b[48;2;0;55;0m"
	case "light":
		titleStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#9A6700"))
		dimStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#656D76"))
		activeStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#FFFFFF")).Background(lipgloss.Color("#0969DA"))
		okStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#1A7F37"))
		warnStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#9A6700"))
		badStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#CF222E"))
		editorLineStyle = lipgloss.NewStyle().
			Foreground(lipgloss.Color("#24292F")).
			Background(lipgloss.Color("#DDE8FF"))
		paneInactiveColor = lipgloss.Color("#8C959F")
		paneActiveColor = lipgloss.Color("#0969DA")
		authorPalette = []lipgloss.Color{
			"#0550AE", "#8250DF", "#0A706F", "#9A6700",
			"#CF222E", "#116329", "#953800", "#0969DA",
		}
		codeHighlightTheme = "github"
		markdownStyleName = "light"
		quoteRailStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#656D76"))
		selectedLineBackground = "\x1b[48;5;153m"
		suggestionRemoveBackground = "\x1b[48;5;224m"
		suggestionAddBackground = "\x1b[48;5;194m"
		changedRemoveBackground = "\x1b[48;2;255;170;170m"
		changedAddBackground = "\x1b[48;2;170;230;170m"
	case "high-contrast":
		titleStyle = lipgloss.NewStyle().Bold(true).Underline(true).Foreground(lipgloss.Color("#FFFF00"))
		dimStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#FFFFFF"))
		activeStyle = lipgloss.NewStyle().Bold(true).Reverse(true)
		okStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#00FF00"))
		warnStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#FFFF00"))
		badStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#FF5555"))
		editorLineStyle = lipgloss.NewStyle().
			Foreground(lipgloss.Color("#FFFFFF")).
			Reverse(true)
		paneInactiveColor, paneActiveColor = lipgloss.Color("#FFFFFF"), lipgloss.Color("#FFFF00")
		authorPalette = []lipgloss.Color{"#00FFFF", "#FF55FF", "#FFFF00", "#00FF00", "#FFFFFF"}
		codeHighlightTheme, markdownStyleName = "github-dark", "dark"
		quoteRailStyle = lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("#FFFFFF"))
		selectedLineBackground = "\x1b[7m"
		suggestionRemoveBackground, suggestionAddBackground = "\x1b[48;5;88m", "\x1b[48;5;28m"
		changedRemoveBackground, changedAddBackground = "\x1b[48;5;88m", "\x1b[48;5;28m"
	case "no-color":
		colorEnabled = false
		titleStyle = lipgloss.NewStyle()
		dimStyle = lipgloss.NewStyle()
		activeStyle = lipgloss.NewStyle().Reverse(true)
		okStyle, warnStyle, badStyle = lipgloss.NewStyle(), lipgloss.NewStyle(), lipgloss.NewStyle()
		editorLineStyle = lipgloss.NewStyle().Reverse(true)
		paneInactiveColor, paneActiveColor = "", ""
		authorPalette = []lipgloss.Color{""}
		codeHighlightTheme, markdownStyleName = "github", "notty"
		quoteRailStyle = lipgloss.NewStyle()
		selectedLineBackground, suggestionRemoveBackground, suggestionAddBackground = "", "", ""
		changedRemoveBackground, changedAddBackground = "", ""
	default:
		return fmt.Errorf("unknown theme %q", name)
	}
	currentThemeName = name
	commentMarkdownRenderers.Clear()
	return nil
}