package templates

// ThemeMode classifies a theme for the Appearance panel's Dark/Light filter.
type ThemeMode string

const (
	ModeDark  ThemeMode = "dark"
	ModeLight ThemeMode = "light"
)

// ThemeOption describes a selectable color theme shown in the header picker.
type ThemeOption struct {
	Name  string    // CSS theme suffix applied as class theme-<name>
	Label string    // Human-readable label
	Color string    // Hex swatch colour
	Mode  ThemeMode // dark or light — drives the panel's mode filter
}

// ThemeOptions is the full set of selectable colour themes, in display order.
//
// Dark themes come first, light themes after. Each mode's list keeps the
// same shape: the default first, then the long-standing classics, then the
// newer theme blocks sorted by background luminance (darkest → lightest),
// the treatment the Catppuccin run introduced. The light list mirrors the
// dark one: counterparts of the classics in the slots their dark siblings
// occupy, Catppuccin Latte after them, the Omarchy light block last.
var ThemeOptions = []ThemeOption{
	// Dark: the original set, order preserved.
	{"tokyo-night", "Tokyo Night", "#7aa2f7", ModeDark},
	{"dracula", "Dracula", "#bd93f9", ModeDark},
	{"nord", "Nord", "#88c0d0", ModeDark},
	{"solarized-dark", "Solarized Dark", "#2aa198", ModeDark},
	{"monokai", "Monokai", "#a6e22e", ModeDark},
	{"one-dark-pro", "One Dark Pro", "#61dafb", ModeDark},
	{"material-dark", "Material Dark", "#80cbc4", ModeDark},
	{"catppuccin-mocha", "Catppuccin Mocha", "#f38ba8", ModeDark},
	{"catppuccin-macchiato", "Catppuccin Macchiato", "#c6a0f6", ModeDark},
	{"catppuccin-frappe", "Catppuccin Frappé", "#ca9ee6", ModeDark},
	// Dark: Omarchy defaults, sorted by background luminance. Palettes come
	// from each theme's colors.toml (github.com/basecamp/omarchy).
	{"vantablack", "Vantablack", "#8d8d8d", ModeDark},
	{"last-horizon", "Last Horizon", "#b59790", ModeDark},
	{"ethereal", "Ethereal", "#7d82d9", ModeDark},
	{"hackerman", "Hackerman", "#82fb9c", ModeDark},
	{"matte-black", "Matte Black", "#e68e0d", ModeDark},
	{"solitude", "Solitude", "#798186", ModeDark},
	{"retro-82", "Retro 82", "#faa968", ModeDark},
	{"osaka-jade", "Osaka Jade", "#509475", ModeDark},
	{"kanagawa", "Kanagawa", "#7e9cd8", ModeDark},
	{"miasma", "Miasma", "#78824b", ModeDark},
	{"lumon", "Lumon", "#8bc9eb", ModeDark},
	{"ristretto", "Ristretto", "#f38d70", ModeDark},
	{"gruvbox", "Gruvbox", "#7daea3", ModeDark},
	{"everforest", "Everforest", "#7fbbb3", ModeDark},
	// Light themes. Lupine leads as the default light theme (the app's
	// real default remains tokyo-night); then counterparts of the classics.
	{"lupine", "Lupine", "#3264eb", ModeLight},
	{"tokyo-night-day", "Tokyo Night Day", "#2e7de9", ModeLight},
	{"solarized-light", "Solarized Light", "#268bd2", ModeLight},
	{"one-light", "One Light", "#4078f2", ModeLight},
	{"ayu-light", "Ayu Light", "#ff9933", ModeLight},
	{"github-light", "GitHub Light", "#0969da", ModeLight},
	{"gruvbox-light", "Gruvbox Light", "#076678", ModeLight},
	{"everforest-light", "Everforest Light", "#3a94c5", ModeLight},
	{"kanagawa-lotus", "Kanagawa Lotus", "#4d699b", ModeLight},
	{"catppuccin-latte", "Catppuccin Latte", "#d20f39", ModeLight},
	// Light: Omarchy defaults, sorted by background luminance.
	{"rose-pine", "Rosé Pine", "#56949f", ModeLight},
	{"flexoki-light", "Flexoki Light", "#205ea6", ModeLight},
	{"white", "White", "#6e6e6e", ModeLight},
}

// ThemeOptionsFor returns the ordered subset of themes for one mode.
func ThemeOptionsFor(mode ThemeMode) []ThemeOption {
	var out []ThemeOption
	for _, opt := range ThemeOptions {
		if opt.Mode == mode {
			out = append(out, opt)
		}
	}
	return out
}

// ThemeModeOf returns the mode of a theme name. Unknown or empty ids fall
// back to dark — the catalog's origin and home of the default theme.
func ThemeModeOf(name string) ThemeMode {
	for _, opt := range ThemeOptions {
		if opt.Name == name {
			return opt.Mode
		}
	}
	return ModeDark
}

// WoodOption describes a selectable bookshelf background texture.
type WoodOption struct {
	Name  string // value stored as data-wood and CSS bg-<name>
	Label string
}

// WoodOptions is the full set of bookshelf background options.
var WoodOptions = []WoodOption{
	{"none", "None"},
	{"wood-light", "Wood Light"},
	{"wood-dark", "Wood Dark"},
	{"wood-mahogany", "Wood Mahogany"},
}