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package theme
import (
"fmt"
"regexp"
"github.com/charmbracelet/lipgloss"
)
// Theme defines the interface for all UI themes in the application.
// All colors must be defined as lipgloss.AdaptiveColor to support
// both light and dark terminal backgrounds.
type Theme interface {
// Base colors
Primary() lipgloss.AdaptiveColor
Secondary() lipgloss.AdaptiveColor
Accent() lipgloss.AdaptiveColor
// Status colors
Error() lipgloss.AdaptiveColor
Warning() lipgloss.AdaptiveColor
Success() lipgloss.AdaptiveColor
Info() lipgloss.AdaptiveColor
// Text colors
Text() lipgloss.AdaptiveColor
TextMuted() lipgloss.AdaptiveColor
TextEmphasized() lipgloss.AdaptiveColor
// Background colors
Background() lipgloss.AdaptiveColor
BackgroundSecondary() lipgloss.AdaptiveColor
BackgroundDarker() lipgloss.AdaptiveColor
// Border colors
BorderNormal() lipgloss.AdaptiveColor
BorderFocused() lipgloss.AdaptiveColor
BorderDim() lipgloss.AdaptiveColor
// Diff view colors
DiffAdded() lipgloss.AdaptiveColor
DiffRemoved() lipgloss.AdaptiveColor
DiffContext() lipgloss.AdaptiveColor
DiffHunkHeader() lipgloss.AdaptiveColor
DiffHighlightAdded() lipgloss.AdaptiveColor
DiffHighlightRemoved() lipgloss.AdaptiveColor
DiffAddedBg() lipgloss.AdaptiveColor
DiffRemovedBg() lipgloss.AdaptiveColor
DiffContextBg() lipgloss.AdaptiveColor
DiffLineNumber() lipgloss.AdaptiveColor
DiffAddedLineNumberBg() lipgloss.AdaptiveColor
DiffRemovedLineNumberBg() lipgloss.AdaptiveColor
// Markdown colors
MarkdownText() lipgloss.AdaptiveColor
MarkdownHeading() lipgloss.AdaptiveColor
MarkdownLink() lipgloss.AdaptiveColor
MarkdownLinkText() lipgloss.AdaptiveColor
MarkdownCode() lipgloss.AdaptiveColor
MarkdownBlockQuote() lipgloss.AdaptiveColor
MarkdownEmph() lipgloss.AdaptiveColor
MarkdownStrong() lipgloss.AdaptiveColor
MarkdownHorizontalRule() lipgloss.AdaptiveColor
MarkdownListItem() lipgloss.AdaptiveColor
MarkdownListEnumeration() lipgloss.AdaptiveColor
MarkdownImage() lipgloss.AdaptiveColor
MarkdownImageText() lipgloss.AdaptiveColor
MarkdownCodeBlock() lipgloss.AdaptiveColor
// Syntax highlighting colors
SyntaxComment() lipgloss.AdaptiveColor
SyntaxKeyword() lipgloss.AdaptiveColor
SyntaxFunction() lipgloss.AdaptiveColor
SyntaxVariable() lipgloss.AdaptiveColor
SyntaxString() lipgloss.AdaptiveColor
SyntaxNumber() lipgloss.AdaptiveColor
SyntaxType() lipgloss.AdaptiveColor
SyntaxOperator() lipgloss.AdaptiveColor
SyntaxPunctuation() lipgloss.AdaptiveColor
}
// BaseTheme provides a default implementation of the Theme interface
// that can be embedded in concrete theme implementations.
type BaseTheme struct {
// Base colors
PrimaryColor lipgloss.AdaptiveColor
SecondaryColor lipgloss.AdaptiveColor
AccentColor lipgloss.AdaptiveColor
// Status colors
ErrorColor lipgloss.AdaptiveColor
WarningColor lipgloss.AdaptiveColor
SuccessColor lipgloss.AdaptiveColor
InfoColor lipgloss.AdaptiveColor
// Text colors
TextColor lipgloss.AdaptiveColor
TextMutedColor lipgloss.AdaptiveColor
TextEmphasizedColor lipgloss.AdaptiveColor
// Background colors
BackgroundColor lipgloss.AdaptiveColor
BackgroundSecondaryColor lipgloss.AdaptiveColor
BackgroundDarkerColor lipgloss.AdaptiveColor
// Border colors
BorderNormalColor lipgloss.AdaptiveColor
BorderFocusedColor lipgloss.AdaptiveColor
BorderDimColor lipgloss.AdaptiveColor
// Diff view colors
DiffAddedColor lipgloss.AdaptiveColor
DiffRemovedColor lipgloss.AdaptiveColor
DiffContextColor lipgloss.AdaptiveColor
DiffHunkHeaderColor lipgloss.AdaptiveColor
DiffHighlightAddedColor lipgloss.AdaptiveColor
DiffHighlightRemovedColor lipgloss.AdaptiveColor
DiffAddedBgColor lipgloss.AdaptiveColor
DiffRemovedBgColor lipgloss.AdaptiveColor
DiffContextBgColor lipgloss.AdaptiveColor
DiffLineNumberColor lipgloss.AdaptiveColor
DiffAddedLineNumberBgColor lipgloss.AdaptiveColor
DiffRemovedLineNumberBgColor lipgloss.AdaptiveColor
// Markdown colors
MarkdownTextColor lipgloss.AdaptiveColor
MarkdownHeadingColor lipgloss.AdaptiveColor
MarkdownLinkColor lipgloss.AdaptiveColor
MarkdownLinkTextColor lipgloss.AdaptiveColor
MarkdownCodeColor lipgloss.AdaptiveColor
MarkdownBlockQuoteColor lipgloss.AdaptiveColor
MarkdownEmphColor lipgloss.AdaptiveColor
MarkdownStrongColor lipgloss.AdaptiveColor
MarkdownHorizontalRuleColor lipgloss.AdaptiveColor
MarkdownListItemColor lipgloss.AdaptiveColor
MarkdownListEnumerationColor lipgloss.AdaptiveColor
MarkdownImageColor lipgloss.AdaptiveColor
MarkdownImageTextColor lipgloss.AdaptiveColor
MarkdownCodeBlockColor lipgloss.AdaptiveColor
// Syntax highlighting colors
SyntaxCommentColor lipgloss.AdaptiveColor
SyntaxKeywordColor lipgloss.AdaptiveColor
SyntaxFunctionColor lipgloss.AdaptiveColor
SyntaxVariableColor lipgloss.AdaptiveColor
SyntaxStringColor lipgloss.AdaptiveColor
SyntaxNumberColor lipgloss.AdaptiveColor
SyntaxTypeColor lipgloss.AdaptiveColor
SyntaxOperatorColor lipgloss.AdaptiveColor
SyntaxPunctuationColor lipgloss.AdaptiveColor
}
// Implement the Theme interface for BaseTheme
func (t *BaseTheme) Primary() lipgloss.AdaptiveColor { return t.PrimaryColor }
func (t *BaseTheme) Secondary() lipgloss.AdaptiveColor { return t.SecondaryColor }
func (t *BaseTheme) Accent() lipgloss.AdaptiveColor { return t.AccentColor }
func (t *BaseTheme) Error() lipgloss.AdaptiveColor { return t.ErrorColor }
func (t *BaseTheme) Warning() lipgloss.AdaptiveColor { return t.WarningColor }
func (t *BaseTheme) Success() lipgloss.AdaptiveColor { return t.SuccessColor }
func (t *BaseTheme) Info() lipgloss.AdaptiveColor { return t.InfoColor }
func (t *BaseTheme) Text() lipgloss.AdaptiveColor { return t.TextColor }
func (t *BaseTheme) TextMuted() lipgloss.AdaptiveColor { return t.TextMutedColor }
func (t *BaseTheme) TextEmphasized() lipgloss.AdaptiveColor { return t.TextEmphasizedColor }
func (t *BaseTheme) Background() lipgloss.AdaptiveColor { return t.BackgroundColor }
func (t *BaseTheme) BackgroundSecondary() lipgloss.AdaptiveColor { return t.BackgroundSecondaryColor }
func (t *BaseTheme) BackgroundDarker() lipgloss.AdaptiveColor { return t.BackgroundDarkerColor }
func (t *BaseTheme) BorderNormal() lipgloss.AdaptiveColor { return t.BorderNormalColor }
func (t *BaseTheme) BorderFocused() lipgloss.AdaptiveColor { return t.BorderFocusedColor }
func (t *BaseTheme) BorderDim() lipgloss.AdaptiveColor { return t.BorderDimColor }
func (t *BaseTheme) DiffAdded() lipgloss.AdaptiveColor { return t.DiffAddedColor }
func (t *BaseTheme) DiffRemoved() lipgloss.AdaptiveColor { return t.DiffRemovedColor }
func (t *BaseTheme) DiffContext() lipgloss.AdaptiveColor { return t.DiffContextColor }
func (t *BaseTheme) DiffHunkHeader() lipgloss.AdaptiveColor { return t.DiffHunkHeaderColor }
func (t *BaseTheme) DiffHighlightAdded() lipgloss.AdaptiveColor { return t.DiffHighlightAddedColor }
func (t *BaseTheme) DiffHighlightRemoved() lipgloss.AdaptiveColor { return t.DiffHighlightRemovedColor }
func (t *BaseTheme) DiffAddedBg() lipgloss.AdaptiveColor { return t.DiffAddedBgColor }
func (t *BaseTheme) DiffRemovedBg() lipgloss.AdaptiveColor { return t.DiffRemovedBgColor }
func (t *BaseTheme) DiffContextBg() lipgloss.AdaptiveColor { return t.DiffContextBgColor }
func (t *BaseTheme) DiffLineNumber() lipgloss.AdaptiveColor { return t.DiffLineNumberColor }
func (t *BaseTheme) DiffAddedLineNumberBg() lipgloss.AdaptiveColor {
return t.DiffAddedLineNumberBgColor
}
func (t *BaseTheme) DiffRemovedLineNumberBg() lipgloss.AdaptiveColor {
return t.DiffRemovedLineNumberBgColor
}
func (t *BaseTheme) MarkdownText() lipgloss.AdaptiveColor { return t.MarkdownTextColor }
func (t *BaseTheme) MarkdownHeading() lipgloss.AdaptiveColor { return t.MarkdownHeadingColor }
func (t *BaseTheme) MarkdownLink() lipgloss.AdaptiveColor { return t.MarkdownLinkColor }
func (t *BaseTheme) MarkdownLinkText() lipgloss.AdaptiveColor { return t.MarkdownLinkTextColor }
func (t *BaseTheme) MarkdownCode() lipgloss.AdaptiveColor { return t.MarkdownCodeColor }
func (t *BaseTheme) MarkdownBlockQuote() lipgloss.AdaptiveColor { return t.MarkdownBlockQuoteColor }
func (t *BaseTheme) MarkdownEmph() lipgloss.AdaptiveColor { return t.MarkdownEmphColor }
func (t *BaseTheme) MarkdownStrong() lipgloss.AdaptiveColor { return t.MarkdownStrongColor }
func (t *BaseTheme) MarkdownHorizontalRule() lipgloss.AdaptiveColor {
return t.MarkdownHorizontalRuleColor
}
func (t *BaseTheme) MarkdownListItem() lipgloss.AdaptiveColor { return t.MarkdownListItemColor }
func (t *BaseTheme) MarkdownListEnumeration() lipgloss.AdaptiveColor {
return t.MarkdownListEnumerationColor
}
func (t *BaseTheme) MarkdownImage() lipgloss.AdaptiveColor { return t.MarkdownImageColor }
func (t *BaseTheme) MarkdownImageText() lipgloss.AdaptiveColor { return t.MarkdownImageTextColor }
func (t *BaseTheme) MarkdownCodeBlock() lipgloss.AdaptiveColor { return t.MarkdownCodeBlockColor }
func (t *BaseTheme) SyntaxComment() lipgloss.AdaptiveColor { return t.SyntaxCommentColor }
func (t *BaseTheme) SyntaxKeyword() lipgloss.AdaptiveColor { return t.SyntaxKeywordColor }
func (t *BaseTheme) SyntaxFunction() lipgloss.AdaptiveColor { return t.SyntaxFunctionColor }
func (t *BaseTheme) SyntaxVariable() lipgloss.AdaptiveColor { return t.SyntaxVariableColor }
func (t *BaseTheme) SyntaxString() lipgloss.AdaptiveColor { return t.SyntaxStringColor }
func (t *BaseTheme) SyntaxNumber() lipgloss.AdaptiveColor { return t.SyntaxNumberColor }
func (t *BaseTheme) SyntaxType() lipgloss.AdaptiveColor { return t.SyntaxTypeColor }
func (t *BaseTheme) SyntaxOperator() lipgloss.AdaptiveColor { return t.SyntaxOperatorColor }
func (t *BaseTheme) SyntaxPunctuation() lipgloss.AdaptiveColor { return t.SyntaxPunctuationColor }
// ParseAdaptiveColor parses a color value from the config file into a lipgloss.AdaptiveColor.
// It accepts either a string (hex color) or a map with "dark" and "light" keys.
func ParseAdaptiveColor(value any) (lipgloss.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 lipgloss.AdaptiveColor{}, fmt.Errorf("invalid hex color format: %s", hexColor)
}
return lipgloss.AdaptiveColor{
Dark: hexColor,
Light: 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 lipgloss.AdaptiveColor{}, fmt.Errorf("invalid int color value (must be between 0 and 255): %d", intVal)
}
return lipgloss.AdaptiveColor{
Dark: fmt.Sprintf("%d", intVal),
Light: 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 lipgloss.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 lipgloss.AdaptiveColor{}, fmt.Errorf("color map values must be strings or ints")
}
darkInt := int(darkVal)
lightInt := int(lightVal)
return lipgloss.AdaptiveColor{
Dark: fmt.Sprintf("%d", darkInt),
Light: fmt.Sprintf("%d", lightInt),
}, nil
}
if !hexColorRegex.MatchString(darkHex) || !hexColorRegex.MatchString(lightHex) {
return lipgloss.AdaptiveColor{}, fmt.Errorf("invalid hex color format")
}
return lipgloss.AdaptiveColor{
Dark: darkHex,
Light: lightHex,
}, nil
}
return lipgloss.AdaptiveColor{}, fmt.Errorf("color must be either a hex string or an object with dark/light keys")
}
|
