Merge pull request 'feat(tui): theme system with 5 curated dark palettes' (#24) from feat/themes into main

Reviewed-on: lerko/uptime#24

internal/tui/tab_alerts.go

@@ -319,7 +319,7 @@ func (m *Model) initAlertHuhForm() tea.Cmd {
 		).Title("Gotify Settings").WithHideFunc(func() bool {
 			return m.alertFormData.AlertType != "gotify"
 		}),
-	).WithTheme(huh.ThemeDracula())
+	).WithTheme(m.theme.HuhTheme())
 
 	return m.huhForm.Init()
 }

internal/tui/tab_maint.go

@@ -11,7 +11,7 @@ import (
 	"github.com/charmbracelet/lipgloss"
 )
 
-var maintStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("#bb9af7"))
+var maintStyle lipgloss.Style
 
 type maintFormData struct {
 	Title       string
@@ -187,7 +187,7 @@ func (m *Model) initMaintHuhForm() tea.Cmd {
 		).Title("Duration").WithHideFunc(func() bool {
 			return m.maintFormData.Type == "incident"
 		}),
-	).WithTheme(huh.ThemeDracula())
+	).WithTheme(m.theme.HuhTheme())
 
 	return m.huhForm.Init()
 }

internal/tui/tab_sites.go

@@ -37,10 +37,7 @@ func typeIcon(siteType string, collapsed bool) string {
 	}
 }
 
-var siteGroupStyle = lipgloss.NewStyle().
-	Padding(0, 1).
-	Bold(true).
-	Foreground(lipgloss.Color("#7D56F4"))
+var siteGroupStyle lipgloss.Style
 
 type siteFormData struct {
 	Name          string
@@ -340,7 +337,7 @@ func (m Model) viewSitesTab() string {
 	if len(m.sites) == 0 {
 		welcome := lipgloss.NewStyle().
 			Border(lipgloss.RoundedBorder()).
-			BorderForeground(lipgloss.Color("#7D56F4")).
+			BorderForeground(m.theme.Accent).
 			Padding(1, 3).
 			Render(
 				titleStyle.Render("Go-Upkeep") + "\n\n" +
@@ -651,7 +648,7 @@ func (m *Model) initSiteHuhForm() tea.Cmd {
 		).Title("Advanced").WithHideFunc(func() bool {
 			return m.siteFormData.SiteType == "group"
 		}),
-	).WithTheme(huh.ThemeDracula())
+	).WithTheme(m.theme.HuhTheme())
 
 	return m.huhForm.Init()
 }

internal/tui/tab_users.go

@@ -94,7 +94,7 @@ func (m *Model) initUserHuhForm() tea.Cmd {
 					huh.NewOption("Admin", "admin"),
 				).Value(&m.userFormData.Role),
 		).Title("SSH Access"),
-	).WithTheme(huh.ThemeDracula())
+	).WithTheme(m.theme.HuhTheme())
 
 	return m.huhForm.Init()
 }

internal/tui/table_helpers.go

@@ -6,25 +6,11 @@ import (
 )
 
 var (
-	tableHeaderStyle = lipgloss.NewStyle().
-				Foreground(lipgloss.Color("#7D56F4")).
-				Bold(true).
-				Padding(0, 1)
-
-	tableCellStyle = lipgloss.NewStyle().Padding(0, 1)
-
-	tableSelectedStyle = lipgloss.NewStyle().
-				Padding(0, 1).
-				Bold(true).
-				Foreground(lipgloss.Color("#ffffff")).
-				Background(lipgloss.Color("#3b3b5c"))
-
-	tableBorderStyle = lipgloss.NewStyle().
-				Foreground(lipgloss.Color("#444"))
-
-	tableZebraStyle = lipgloss.NewStyle().
-			Padding(0, 1).
-			Background(lipgloss.Color("#1a1a2e"))
+	tableHeaderStyle   lipgloss.Style
+	tableCellStyle     lipgloss.Style
+	tableSelectedStyle lipgloss.Style
+	tableBorderStyle   lipgloss.Style
+	tableZebraStyle    lipgloss.Style
 )
 
 type StyleOverride func(row, col int) *lipgloss.Style

internal/tui/theme.go

@@ -0,0 +1,191 @@
+package tui
+
+import (
+	"github.com/charmbracelet/huh"
+	"github.com/charmbracelet/lipgloss"
+)
+
+type Theme struct {
+	Name string
+
+	// Base layers
+	Bg      lipgloss.Color
+	Surface lipgloss.Color
+	Panel   lipgloss.Color
+	Border  lipgloss.Color
+
+	// Text
+	Fg     lipgloss.Color
+	Muted  lipgloss.Color
+	Subtle lipgloss.Color
+
+	// Semantic
+	Success lipgloss.Color
+	Warning lipgloss.Color
+	Danger  lipgloss.Color
+	Info    lipgloss.Color
+	Accent  lipgloss.Color
+	Purple  lipgloss.Color
+
+	// Table
+	ZebraBg lipgloss.Color
+
+	// Selection
+	SelectedFg lipgloss.Color
+	SelectedBg lipgloss.Color
+}
+
+var themes = []Theme{
+	themeFlexokiDark,
+	themeTokyoNight,
+	themeCatppuccinMocha,
+	themeNord,
+	themeGruvbox,
+}
+
+var themeFlexokiDark = Theme{
+	Name:       "Flexoki Dark",
+	Bg:         "#1C1B1A",
+	Surface:    "#282726",
+	Panel:      "#343331",
+	Border:     "#575653",
+	Fg:         "#CECDC3",
+	Muted:      "#878580",
+	Subtle:     "#6F6E69",
+	Success:    "#879A39",
+	Warning:    "#D0A215",
+	Danger:     "#D14D41",
+	Info:       "#4385BE",
+	Accent:     "#3AA99F",
+	Purple:     "#8B7EC8",
+	ZebraBg:    "#222120",
+	SelectedFg: "#FFFCF0",
+	SelectedBg: "#403E3C",
+}
+
+var themeTokyoNight = Theme{
+	Name:       "Tokyo Night",
+	Bg:         "#1a1b26",
+	Surface:    "#24283b",
+	Panel:      "#292e42",
+	Border:     "#3b4261",
+	Fg:         "#c0caf5",
+	Muted:      "#a9b1d6",
+	Subtle:     "#565f89",
+	Success:    "#9ece6a",
+	Warning:    "#e0af68",
+	Danger:     "#f7768e",
+	Info:       "#7aa2f7",
+	Accent:     "#7dcfff",
+	Purple:     "#bb9af7",
+	ZebraBg:    "#1c1d28",
+	SelectedFg: "#c0caf5",
+	SelectedBg: "#292e42",
+}
+
+var themeGruvbox = Theme{
+	Name:       "Gruvbox",
+	Bg:         "#282828",
+	Surface:    "#3c3836",
+	Panel:      "#504945",
+	Border:     "#665c54",
+	Fg:         "#ebdbb2",
+	Muted:      "#bdae93",
+	Subtle:     "#7c6f64",
+	Success:    "#b8bb26",
+	Warning:    "#fabd2f",
+	Danger:     "#fb4934",
+	Info:       "#83a598",
+	Accent:     "#8ec07c",
+	Purple:     "#d3869b",
+	ZebraBg:    "#2a2a2a",
+	SelectedFg: "#fbf1c7",
+	SelectedBg: "#504945",
+}
+
+var themeCatppuccinMocha = Theme{
+	Name:       "Catppuccin Mocha",
+	Bg:         "#1e1e2e",
+	Surface:    "#313244",
+	Panel:      "#45475a",
+	Border:     "#585b70",
+	Fg:         "#cdd6f4",
+	Muted:      "#a6adc8",
+	Subtle:     "#6c7086",
+	Success:    "#a6e3a1",
+	Warning:    "#f9e2af",
+	Danger:     "#f38ba8",
+	Info:       "#89b4fa",
+	Accent:     "#94e2d5",
+	Purple:     "#cba6f7",
+	ZebraBg:    "#232334",
+	SelectedFg: "#cdd6f4",
+	SelectedBg: "#45475a",
+}
+
+var themeNord = Theme{
+	Name:       "Nord",
+	Bg:         "#2e3440",
+	Surface:    "#3b4252",
+	Panel:      "#434c5e",
+	Border:     "#4c566a",
+	Fg:         "#d8dee9",
+	Muted:      "#d8dee9",
+	Subtle:     "#4c566a",
+	Success:    "#a3be8c",
+	Warning:    "#ebcb8b",
+	Danger:     "#bf616a",
+	Info:       "#81a1c1",
+	Accent:     "#88c0d0",
+	Purple:     "#b48ead",
+	ZebraBg:    "#323845",
+	SelectedFg: "#eceff4",
+	SelectedBg: "#434c5e",
+}
+
+func (t Theme) HuhTheme() *huh.Theme {
+	ht := huh.ThemeBase()
+
+	ht.Focused.Base = ht.Focused.Base.BorderForeground(t.Border)
+	ht.Focused.Card = ht.Focused.Base
+	ht.Focused.Title = ht.Focused.Title.Foreground(t.Accent).Bold(true)
+	ht.Focused.NoteTitle = ht.Focused.NoteTitle.Foreground(t.Accent).Bold(true).MarginBottom(1)
+	ht.Focused.Description = ht.Focused.Description.Foreground(t.Muted)
+	ht.Focused.ErrorIndicator = ht.Focused.ErrorIndicator.Foreground(t.Danger)
+	ht.Focused.ErrorMessage = ht.Focused.ErrorMessage.Foreground(t.Danger)
+	ht.Focused.SelectSelector = ht.Focused.SelectSelector.Foreground(t.Purple)
+	ht.Focused.NextIndicator = ht.Focused.NextIndicator.Foreground(t.Purple)
+	ht.Focused.PrevIndicator = ht.Focused.PrevIndicator.Foreground(t.Purple)
+	ht.Focused.Option = ht.Focused.Option.Foreground(t.Fg)
+	ht.Focused.MultiSelectSelector = ht.Focused.MultiSelectSelector.Foreground(t.Purple)
+	ht.Focused.SelectedOption = ht.Focused.SelectedOption.Foreground(t.Success)
+	ht.Focused.SelectedPrefix = lipgloss.NewStyle().Foreground(t.Success).SetString("✓ ")
+	ht.Focused.UnselectedPrefix = lipgloss.NewStyle().Foreground(t.Subtle).SetString("• ")
+	ht.Focused.UnselectedOption = ht.Focused.UnselectedOption.Foreground(t.Fg)
+	ht.Focused.FocusedButton = ht.Focused.FocusedButton.Foreground(t.Bg).Background(t.Accent)
+	ht.Focused.Next = ht.Focused.FocusedButton
+	ht.Focused.BlurredButton = ht.Focused.BlurredButton.Foreground(t.Fg).Background(t.Surface)
+	ht.Focused.TextInput.Cursor = ht.Focused.TextInput.Cursor.Foreground(t.Accent)
+	ht.Focused.TextInput.Placeholder = ht.Focused.TextInput.Placeholder.Foreground(t.Subtle)
+	ht.Focused.TextInput.Prompt = ht.Focused.TextInput.Prompt.Foreground(t.Purple)
+
+	ht.Blurred = ht.Focused
+	ht.Blurred.Base = ht.Focused.Base.BorderStyle(lipgloss.HiddenBorder())
+	ht.Blurred.Card = ht.Blurred.Base
+	ht.Blurred.NextIndicator = lipgloss.NewStyle()
+	ht.Blurred.PrevIndicator = lipgloss.NewStyle()
+
+	ht.Group.Title = ht.Focused.Title
+	ht.Group.Description = ht.Focused.Description
+
+	return ht
+}
+
+func themeByName(name string) Theme {
+	for _, t := range themes {
+		if t.Name == name {
+			return t
+		}
+	}
+	return themes[0]
+}

internal/tui/tui.go

@@ -20,16 +20,34 @@ import (
 )
 
 var (
-	subtleStyle  = lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#9ca0b0", Dark: "#565f89"})
-	specialStyle = lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#43BF6D", Dark: "#73F59F"})
-	warnStyle    = lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#F0E442", Dark: "#F0E442"})
-	dangerStyle  = lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#F25D94", Dark: "#F25D94"})
-	titleStyle   = lipgloss.NewStyle().Foreground(lipgloss.Color("#7D56F4")).Bold(true)
-
-	activeTab   = lipgloss.NewStyle().Border(lipgloss.NormalBorder(), false, false, true, false).BorderForeground(lipgloss.Color("#7D56F4")).Foreground(lipgloss.Color("#7D56F4")).Bold(true).Padding(0, 1)
-	inactiveTab = lipgloss.NewStyle().Padding(0, 1).Foreground(lipgloss.AdaptiveColor{Light: "#AAA", Dark: "#555"})
+	subtleStyle  lipgloss.Style
+	specialStyle lipgloss.Style
+	warnStyle    lipgloss.Style
+	dangerStyle  lipgloss.Style
+	titleStyle   lipgloss.Style
+	activeTab    lipgloss.Style
+	inactiveTab  lipgloss.Style
 )
 
+func applyTheme(t Theme) {
+	subtleStyle = lipgloss.NewStyle().Foreground(t.Subtle)
+	specialStyle = lipgloss.NewStyle().Foreground(t.Success)
+	warnStyle = lipgloss.NewStyle().Foreground(t.Warning)
+	dangerStyle = lipgloss.NewStyle().Foreground(t.Danger)
+	titleStyle = lipgloss.NewStyle().Foreground(t.Accent).Bold(true)
+	activeTab = lipgloss.NewStyle().Border(lipgloss.NormalBorder(), false, false, true, false).BorderForeground(t.Accent).Foreground(t.Accent).Bold(true).Padding(0, 1)
+	inactiveTab = lipgloss.NewStyle().Padding(0, 1).Foreground(t.Muted)
+
+	tableHeaderStyle = lipgloss.NewStyle().Foreground(t.Accent).Bold(true).Padding(0, 1)
+	tableCellStyle = lipgloss.NewStyle().Padding(0, 1)
+	tableSelectedStyle = lipgloss.NewStyle().Padding(0, 1).Bold(true).Foreground(t.SelectedFg).Background(t.SelectedBg)
+	tableBorderStyle = lipgloss.NewStyle().Foreground(t.Border)
+	tableZebraStyle = lipgloss.NewStyle().Padding(0, 1).Background(t.ZebraBg)
+
+	siteGroupStyle = lipgloss.NewStyle().Padding(0, 1).Bold(true).Foreground(t.Accent)
+	maintStyle = lipgloss.NewStyle().Foreground(t.Purple)
+}
+
 var pulseFrames = []string{"⠋", "⠙", "⠹", "⠸", "⠼", "⠴", "⠦", "⠧", "⠇", "⠏"}
 
 const (
@@ -84,6 +102,8 @@ type Model struct {
 	collapsed  map[int]bool
 	store      store.Store
 	engine     *monitor.Engine
+	theme      Theme
+	themeIndex int
 
 	// harmonica animation state
 	pulseSpring harmonica.Spring
@@ -107,6 +127,19 @@ func InitialModel(isAdmin bool, s store.Store, eng *monitor.Engine) Model {
 	z := zone.New()
 	spring := harmonica.NewSpring(harmonica.FPS(10), 6.0, 0.4)
 	collapsed := loadCollapsed(s)
+
+	themeName, _ := s.GetPreference("theme")
+	theme := themeByName(themeName)
+	themeIdx := 0
+	for i, t := range themes {
+		if t.Name == theme.Name {
+			themeIdx = i
+			break
+		}
+	}
+
+	applyTheme(theme)
+
 	return Model{
 		state:        stateDashboard,
 		logViewport:  vpLogs,
@@ -117,6 +150,8 @@ func InitialModel(isAdmin bool, s store.Store, eng *monitor.Engine) Model {
 		zones:        z,
 		pulseSpring:  spring,
 		collapsed:    collapsed,
+		theme:        theme,
+		themeIndex:   themeIdx,
 	}
 }
 
@@ -458,6 +493,11 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 						m.refreshData()
 					}
 				}
+			case "T":
+				m.themeIndex = (m.themeIndex + 1) % len(themes)
+				m.theme = themes[m.themeIndex]
+				applyTheme(m.theme)
+				_ = m.store.SetPreference("theme", m.theme.Name)
 			case "d", "backspace":
 				if m.currentTab == 0 && len(m.sites) > 0 {
 					m.deleteID = m.sites[m.cursor].ID
@@ -723,7 +763,7 @@ func (m Model) View() string {
 		hint := subtleStyle.Render("[y] Confirm  [n] Cancel")
 		box := lipgloss.NewStyle().
 			Border(lipgloss.RoundedBorder()).
-			BorderForeground(lipgloss.Color("#F25D94")).
+			BorderForeground(m.theme.Danger).
 			Padding(1, 3).
 			Render(msg + "\n\n" + hint)
 		return lipgloss.NewStyle().Padding(2, 4).Render(box)
@@ -875,19 +915,19 @@ func (m Model) viewDashboard() string {
 
 	var footer string
 	if m.filterMode {
-		cursor := lipgloss.NewStyle().Foreground(lipgloss.Color("#7D56F4")).Render("│")
+		cursor := lipgloss.NewStyle().Foreground(m.theme.Accent).Render("│")
 		footer = "\n" + titleStyle.Render("/") + " " + m.filterText + cursor + "  " + subtleStyle.Render("[Enter]Apply [Esc]Clear")
 	} else {
 		var keys string
 		switch m.currentTab {
 		case 0:
-			keys = "[/]Filter [n]New [e]Edit [i]Info [d]Del [p]Pause [Tab]Switch [q]Quit"
+			keys = "[/]Filter [n]New [e]Edit [i]Info [d]Del [p]Pause [T]Theme [Tab]Switch [q]Quit"
 		case 4:
-			keys = "[n]New [x]End [d]Del [Tab]Switch [q]Quit"
+			keys = "[n]New [x]End [d]Del [T]Theme [Tab]Switch [q]Quit"
 		case 5:
-			keys = "[n]Add [d]Revoke [Tab]Switch [q]Quit"
+			keys = "[n]Add [d]Revoke [T]Theme [Tab]Switch [q]Quit"
 		default:
-			keys = "[Tab]Switch [q]Quit"
+			keys = "[T]Theme [Tab]Switch [q]Quit"
 		}
 		footer = "\n" + statusLine + "  " + subtleStyle.Render(keys)
 		if m.filterText != "" && m.currentTab == 0 {