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package theme
import (
"fmt"
"regexp"
"github.com/charmbracelet/lipgloss/v2"
"github.com/charmbracelet/lipgloss/v2/compat"
)
// Theme defines the interface for all UI themes in the application.
// All colors must be defined as compat.AdaptiveColor to support
// both light and dark terminal backgrounds.
type Theme interface {
// Background colors
Background() compat.AdaptiveColor // Radix 1
BackgroundSubtle() compat.AdaptiveColor // Radix 2
BackgroundElement() compat.AdaptiveColor // Radix 3
// Border colors
BorderSubtle() compat.AdaptiveColor // Radix 6
Border() compat.AdaptiveColor // Radix 7
BorderActive() compat.AdaptiveColor // Radix 8
// Brand colors
Primary() compat.AdaptiveColor // Radix 9
Secondary() compat.AdaptiveColor
Accent() compat.AdaptiveColor
// Text colors
TextMuted() compat.AdaptiveColor // Radix 11
Text() compat.AdaptiveColor // Radix 12
// Status colors
Error() compat.AdaptiveColor
Warning() compat.AdaptiveColor
Success() compat.AdaptiveColor
Info() compat.AdaptiveColor
// Diff view colors
DiffAdded() compat.AdaptiveColor
DiffRemoved() compat.AdaptiveColor
DiffContext() compat.AdaptiveColor
DiffHunkHeader() compat.AdaptiveColor
DiffHighlightAdded() compat.AdaptiveColor
DiffHighlightRemoved() compat.AdaptiveColor
DiffAddedBg() compat.AdaptiveColor
DiffRemovedBg() compat.AdaptiveColor
DiffContextBg() compat.AdaptiveColor
DiffLineNumber() compat.AdaptiveColor
DiffAddedLineNumberBg() compat.AdaptiveColor
DiffRemovedLineNumberBg() compat.AdaptiveColor
// Markdown colors
MarkdownText() compat.AdaptiveColor
MarkdownHeading() compat.AdaptiveColor
MarkdownLink() compat.AdaptiveColor
MarkdownLinkText() compat.AdaptiveColor
MarkdownCode() compat.AdaptiveColor
MarkdownBlockQuote() compat.AdaptiveColor
MarkdownEmph() compat.AdaptiveColor
MarkdownStrong() compat.AdaptiveColor
MarkdownHorizontalRule() compat.AdaptiveColor
MarkdownListItem() compat.AdaptiveColor
MarkdownListEnumeration() compat.AdaptiveColor
MarkdownImage() compat.AdaptiveColor
MarkdownImageText() compat.AdaptiveColor
MarkdownCodeBlock() compat.AdaptiveColor
// Syntax highlighting colors
SyntaxComment() compat.AdaptiveColor
SyntaxKeyword() compat.AdaptiveColor
SyntaxFunction() compat.AdaptiveColor
SyntaxVariable() compat.AdaptiveColor
SyntaxString() compat.AdaptiveColor
SyntaxNumber() compat.AdaptiveColor
SyntaxType() compat.AdaptiveColor
SyntaxOperator() compat.AdaptiveColor
SyntaxPunctuation() compat.AdaptiveColor
}
// BaseTheme provides a default implementation of the Theme interface
// that can be embedded in concrete theme implementations.
type BaseTheme struct {
// Background colors
BackgroundColor compat.AdaptiveColor
BackgroundSubtleColor compat.AdaptiveColor
BackgroundElementColor compat.AdaptiveColor
// Border colors
BorderSubtleColor compat.AdaptiveColor
BorderColor compat.AdaptiveColor
BorderActiveColor compat.AdaptiveColor
// Brand colors
PrimaryColor compat.AdaptiveColor
SecondaryColor compat.AdaptiveColor
AccentColor compat.AdaptiveColor
// Text colors
TextMutedColor compat.AdaptiveColor
TextColor compat.AdaptiveColor
// Status colors
ErrorColor compat.AdaptiveColor
WarningColor compat.AdaptiveColor
SuccessColor compat.AdaptiveColor
InfoColor compat.AdaptiveColor
// Diff view colors
DiffAddedColor compat.AdaptiveColor
DiffRemovedColor compat.AdaptiveColor
DiffContextColor compat.AdaptiveColor
DiffHunkHeaderColor compat.AdaptiveColor
DiffHighlightAddedColor compat.AdaptiveColor
DiffHighlightRemovedColor compat.AdaptiveColor
DiffAddedBgColor compat.AdaptiveColor
DiffRemovedBgColor compat.AdaptiveColor
DiffContextBgColor compat.AdaptiveColor
DiffLineNumberColor compat.AdaptiveColor
DiffAddedLineNumberBgColor compat.AdaptiveColor
DiffRemovedLineNumberBgColor compat.AdaptiveColor
// Markdown colors
MarkdownTextColor compat.AdaptiveColor
MarkdownHeadingColor compat.AdaptiveColor
MarkdownLinkColor compat.AdaptiveColor
MarkdownLinkTextColor compat.AdaptiveColor
MarkdownCodeColor compat.AdaptiveColor
MarkdownBlockQuoteColor compat.AdaptiveColor
MarkdownEmphColor compat.AdaptiveColor
MarkdownStrongColor compat.AdaptiveColor
MarkdownHorizontalRuleColor compat.AdaptiveColor
MarkdownListItemColor compat.AdaptiveColor
MarkdownListEnumerationColor compat.AdaptiveColor
MarkdownImageColor compat.AdaptiveColor
MarkdownImageTextColor compat.AdaptiveColor
MarkdownCodeBlockColor compat.AdaptiveColor
// Syntax highlighting colors
SyntaxCommentColor compat.AdaptiveColor
SyntaxKeywordColor compat.AdaptiveColor
SyntaxFunctionColor compat.AdaptiveColor
SyntaxVariableColor compat.AdaptiveColor
SyntaxStringColor compat.AdaptiveColor
SyntaxNumberColor compat.AdaptiveColor
SyntaxTypeColor compat.AdaptiveColor
SyntaxOperatorColor compat.AdaptiveColor
SyntaxPunctuationColor compat.AdaptiveColor
}
// Implement the Theme interface for BaseTheme
func (t *BaseTheme) Primary() compat.AdaptiveColor { return t.PrimaryColor }
func (t *BaseTheme) Secondary() compat.AdaptiveColor { return t.SecondaryColor }
func (t *BaseTheme) Accent() compat.AdaptiveColor { return t.AccentColor }
func (t *BaseTheme) Error() compat.AdaptiveColor { return t.ErrorColor }
func (t *BaseTheme) Warning() compat.AdaptiveColor { return t.WarningColor }
func (t *BaseTheme) Success() compat.AdaptiveColor { return t.SuccessColor }
func (t *BaseTheme) Info() compat.AdaptiveColor { return t.InfoColor }
func (t *BaseTheme) Text() compat.AdaptiveColor { return t.TextColor }
func (t *BaseTheme) TextMuted() compat.AdaptiveColor { return t.TextMutedColor }
func (t *BaseTheme) Background() compat.AdaptiveColor { return t.BackgroundColor }
func (t *BaseTheme) BackgroundSubtle() compat.AdaptiveColor { return t.BackgroundSubtleColor }
func (t *BaseTheme) BackgroundElement() compat.AdaptiveColor { return t.BackgroundElementColor }
func (t *BaseTheme) Border() compat.AdaptiveColor { return t.BorderColor }
func (t *BaseTheme) BorderActive() compat.AdaptiveColor { return t.BorderActiveColor }
func (t *BaseTheme) BorderSubtle() compat.AdaptiveColor { return t.BorderSubtleColor }
func (t *BaseTheme) DiffAdded() compat.AdaptiveColor { return t.DiffAddedColor }
func (t *BaseTheme) DiffRemoved() compat.AdaptiveColor { return t.DiffRemovedColor }
func (t *BaseTheme) DiffContext() compat.AdaptiveColor { return t.DiffContextColor }
func (t *BaseTheme) DiffHunkHeader() compat.AdaptiveColor { return t.DiffHunkHeaderColor }
func (t *BaseTheme) DiffHighlightAdded() compat.AdaptiveColor { return t.DiffHighlightAddedColor }
func (t *BaseTheme) DiffHighlightRemoved() compat.AdaptiveColor { return t.DiffHighlightRemovedColor }
func (t *BaseTheme) DiffAddedBg() compat.AdaptiveColor { return t.DiffAddedBgColor }
func (t *BaseTheme) DiffRemovedBg() compat.AdaptiveColor { return t.DiffRemovedBgColor }
func (t *BaseTheme) DiffContextBg() compat.AdaptiveColor { return t.DiffContextBgColor }
func (t *BaseTheme) DiffLineNumber() compat.AdaptiveColor { return t.DiffLineNumberColor }
func (t *BaseTheme) DiffAddedLineNumberBg() compat.AdaptiveColor {
return t.DiffAddedLineNumberBgColor
}
func (t *BaseTheme) DiffRemovedLineNumberBg() compat.AdaptiveColor {
return t.DiffRemovedLineNumberBgColor
}
func (t *BaseTheme) MarkdownText() compat.AdaptiveColor { return t.MarkdownTextColor }
func (t *BaseTheme) MarkdownHeading() compat.AdaptiveColor { return t.MarkdownHeadingColor }
func (t *BaseTheme) MarkdownLink() compat.AdaptiveColor { return t.MarkdownLinkColor }
func (t *BaseTheme) MarkdownLinkText() compat.AdaptiveColor { return t.MarkdownLinkTextColor }
func (t *BaseTheme) MarkdownCode() compat.AdaptiveColor { return t.MarkdownCodeColor }
func (t *BaseTheme) MarkdownBlockQuote() compat.AdaptiveColor { return t.MarkdownBlockQuoteColor }
func (t *BaseTheme) MarkdownEmph() compat.AdaptiveColor { return t.MarkdownEmphColor }
func (t *BaseTheme) MarkdownStrong() compat.AdaptiveColor { return t.MarkdownStrongColor }
func (t *BaseTheme) MarkdownHorizontalRule() compat.AdaptiveColor {
return t.MarkdownHorizontalRuleColor
}
func (t *BaseTheme) MarkdownListItem() compat.AdaptiveColor { return t.MarkdownListItemColor }
func (t *BaseTheme) MarkdownListEnumeration() compat.AdaptiveColor {
return t.MarkdownListEnumerationColor
}
func (t *BaseTheme) MarkdownImage() compat.AdaptiveColor { return t.MarkdownImageColor }
func (t *BaseTheme) MarkdownImageText() compat.AdaptiveColor { return t.MarkdownImageTextColor }
func (t *BaseTheme) MarkdownCodeBlock() compat.AdaptiveColor { return t.MarkdownCodeBlockColor }
func (t *BaseTheme) SyntaxComment() compat.AdaptiveColor { return t.SyntaxCommentColor }
func (t *BaseTheme) SyntaxKeyword() compat.AdaptiveColor { return t.SyntaxKeywordColor }
func (t *BaseTheme) SyntaxFunction() compat.AdaptiveColor { return t.SyntaxFunctionColor }
func (t *BaseTheme) SyntaxVariable() compat.AdaptiveColor { return t.SyntaxVariableColor }
func (t *BaseTheme) SyntaxString() compat.AdaptiveColor { return t.SyntaxStringColor }
func (t *BaseTheme) SyntaxNumber() compat.AdaptiveColor { return t.SyntaxNumberColor }
func (t *BaseTheme) SyntaxType() compat.AdaptiveColor { return t.SyntaxTypeColor }
func (t *BaseTheme) SyntaxOperator() compat.AdaptiveColor { return t.SyntaxOperatorColor }
func (t *BaseTheme) SyntaxPunctuation() compat.AdaptiveColor { return t.SyntaxPunctuationColor }
// ParseAdaptiveColor parses a color value from the config file into a compat.AdaptiveColor.
// It accepts either a string (hex color) or a map with "dark" and "light" keys.
func ParseAdaptiveColor(value any) (compat.AdaptiveColor, error) {
// Regular expression to validate hex color format
hexColorRegex := regexp.MustCompile(`^#[0-9a-fA-F]{6}$`)
// Case 1: String value (same color for both dark and light modes)
if hexColor, ok := value.(string); ok {
if !hexColorRegex.MatchString(hexColor) {
return compat.AdaptiveColor{}, fmt.Errorf("invalid hex color format: %s", hexColor)
}
return compat.AdaptiveColor{
Dark: lipgloss.Color(hexColor),
Light: lipgloss.Color(hexColor),
}, nil
}
// Case 2: Int value between 0 and 255
if numericVal, ok := value.(float64); ok {
intVal := int(numericVal)
if intVal < 0 || intVal > 255 {
return compat.AdaptiveColor{}, fmt.Errorf("invalid int color value (must be between 0 and 255): %d", intVal)
}
return compat.AdaptiveColor{
Dark: lipgloss.Color(fmt.Sprintf("%d", intVal)),
Light: lipgloss.Color(fmt.Sprintf("%d", intVal)),
}, nil
}
// Case 3: Map with dark and light keys
if colorMap, ok := value.(map[string]any); ok {
darkVal, darkOk := colorMap["dark"]
lightVal, lightOk := colorMap["light"]
if !darkOk || !lightOk {
return compat.AdaptiveColor{}, fmt.Errorf("color map must contain both 'dark' and 'light' keys")
}
darkHex, darkIsString := darkVal.(string)
lightHex, lightIsString := lightVal.(string)
if !darkIsString || !lightIsString {
darkVal, darkIsNumber := darkVal.(float64)
lightVal, lightIsNumber := lightVal.(float64)
if !darkIsNumber || !lightIsNumber {
return compat.AdaptiveColor{}, fmt.Errorf("color map values must be strings or ints")
}
darkInt := int(darkVal)
lightInt := int(lightVal)
return compat.AdaptiveColor{
Dark: lipgloss.Color(fmt.Sprintf("%d", darkInt)),
Light: lipgloss.Color(fmt.Sprintf("%d", lightInt)),
}, nil
}
if !hexColorRegex.MatchString(darkHex) || !hexColorRegex.MatchString(lightHex) {
return compat.AdaptiveColor{}, fmt.Errorf("invalid hex color format")
}
return compat.AdaptiveColor{
Dark: lipgloss.Color(darkHex),
Light: lipgloss.Color(lightHex),
}, nil
}
return compat.AdaptiveColor{}, fmt.Errorf("color must be either a hex string or an object with dark/light keys")
}
|
