package theme

// DefaultTheme returns the default theme settings
func DefaultTheme() *Theme {
	return &Theme{
		LightColors: &ColorScheme{
			Background:          "0 0% 100%",
			Foreground:          "0 0% 3.9%",
			Card:                "0 0% 100%",
			CardForeground:      "0 0% 3.9%",
			Popover:             "0 0% 100%",
			PopoverForeground:   "0 0% 3.9%",
			Primary:             "0 0% 9%",
			PrimaryForeground:   "0 0% 98%",
			Secondary:           "0 0% 96.1%",
			SecondaryForeground: "0 0% 9%",
			Muted:               "0 0% 96.1%",
			MutedForeground:     "0 0% 45.1%",
			Accent:              "0 0% 96.1%",
			AccentForeground:    "0 0% 9%",
			Destructive:         "0 84.2% 60.2%",
			DestructiveForeground: "0 0% 98%",
			Border:              "0 0% 89.8%",
			Input:               "0 0% 89.8%",
			Ring:                "0 0% 3.9%",
		},
		DarkColors: &ColorScheme{
			Background:          "0 0% 3.9%",
			Foreground:          "0 0% 98%",
			Card:                "0 0% 3.9%",
			CardForeground:      "0 0% 98%",
			Popover:             "0 0% 3.9%",
			PopoverForeground:   "0 0% 98%",
			Primary:             "0 0% 98%",
			PrimaryForeground:   "0 0% 9%",
			Secondary:           "0 0% 14.9%",
			SecondaryForeground: "0 0% 98%",
			Muted:               "0 0% 14.9%",
			MutedForeground:     "0 0% 63.9%",
			Accent:              "0 0% 14.9%",
			AccentForeground:    "0 0% 98%",
			Destructive:         "0 62.8% 30.6%",
			DestructiveForeground: "0 0% 98%",
			Border:              "0 0% 14.9%",
			Input:               "0 0% 14.9%",
			Ring:                "0 0% 83.1%",
		},
		Typography: &ThemeTypography{
			FontHeading:    "system",
			FontBody:       "system",
			FontMono:       "system",
			FontSizeBase:   "16",
			LineHeightBase: "1.5",
			FontWeightBase: "normal",
		},
		Spacing: &ThemeSpacing{
			Radius:         "0.5",
			ButtonRadius:   "0.375",
			CardRadius:     "0.75",
			InputRadius:    "0.375",
			PillButtons:    false,
			BorderWidth:    "normal",
			ContainerWidth: "normal",
			SpacingScale:   "normal",
		},
		Effects: &ThemeEffects{
			ShadowIntensity:  50,
			ShadowColor:      "0 0% 0%",
			ShadowBlur:       "normal",
			ElevationPreset:  "raised",
			TransitionSpeed:  "normal",
			ReduceMotion:     false,
			HoverIntensity:   "normal",
		},
		Mode: "system",
		Buttons: &ThemeButtons{
			Primary: &ButtonTypeConfig{
				BgColor:     "var(--primary)",
				TextColor:   "var(--primary-foreground)",
				BorderWidth: "0",
				Radius:      "0.375",
				Shadow:      "none",
				HoverBg:     "var(--primary)/90",
			},
			Secondary: &ButtonTypeConfig{
				BgColor:     "var(--secondary)",
				TextColor:   "var(--secondary-foreground)",
				BorderWidth: "0",
				Radius:      "0.375",
				Shadow:      "none",
				HoverBg:     "var(--secondary)/80",
			},
			Outline: &ButtonTypeConfig{
				BgColor:     "transparent",
				TextColor:   "var(--primary)",
				BorderColor: "var(--border)",
				BorderWidth: "1",
				Radius:      "0.375",
				Shadow:      "none",
				HoverBg:     "var(--accent)",
			},
			Ghost: &ButtonTypeConfig{
				BgColor:     "transparent",
				TextColor:   "var(--foreground)",
				BorderWidth: "0",
				Radius:      "0.375",
				Shadow:      "none",
				HoverBg:     "var(--accent)",
			},
			Link: &ButtonTypeConfig{
				BgColor:     "transparent",
				TextColor:   "var(--primary)",
				BorderWidth: "0",
				Radius:      "0",
				Shadow:      "none",
			},
			Destructive: &ButtonTypeConfig{
				BgColor:     "var(--destructive)",
				TextColor:   "var(--destructive-foreground)",
				BorderWidth: "0",
				Radius:      "0.375",
				Shadow:      "none",
				HoverBg:     "var(--destructive)/90",
			},
		},
		Inputs: &ThemeInputs{
			Default: &InputVariantConfig{
				BgColor:          "var(--background)",
				BorderColor:      "var(--input)",
				BorderWidth:      "1",
				TextColor:        "var(--foreground)",
				FocusRing:        "var(--ring)",
				FocusBg:          "",
				FocusBorder:      "",
				HoverBg:          "",
				PlaceholderColor: "var(--muted-foreground)",
			},
			Filled: &InputVariantConfig{
				BgColor:          "var(--muted)",
				BorderColor:      "transparent",
				BorderWidth:      "1",
				TextColor:        "var(--foreground)",
				FocusRing:        "var(--ring)",
				FocusBg:          "var(--background)",
				FocusBorder:      "var(--input)",
				HoverBg:          "",
				PlaceholderColor: "var(--muted-foreground)",
			},
			Outlined: &InputVariantConfig{
				BgColor:          "transparent",
				BorderColor:      "var(--input)",
				BorderWidth:      "2",
				TextColor:        "var(--foreground)",
				FocusRing:        "var(--ring)",
				FocusBg:          "",
				FocusBorder:      "var(--ring)",
				HoverBg:          "",
				PlaceholderColor: "var(--muted-foreground)",
			},
			Ghost: &InputVariantConfig{
				BgColor:          "transparent",
				BorderColor:      "transparent",
				BorderWidth:      "1",
				TextColor:        "var(--foreground)",
				FocusRing:        "var(--ring)",
				FocusBg:          "var(--background)",
				FocusBorder:      "var(--input)",
				HoverBg:          "var(--muted)",
				PlaceholderColor: "var(--muted-foreground)",
			},
		},
		Cards: &ThemeCards{
			BorderWidth:  "1",
			BorderStyle:  "solid",
			BorderColor:  "var(--border)",
			Shadow:       "sm",
			ShadowColor:  "",
			BgOpacity:    "100",
			BackdropBlur: "none",
			HoverEffect:  "none",
		},
	}
}

// Theme represents the complete theme configuration
type Theme struct {
	LightColors  *ColorScheme     `json:"lightColors"`
	DarkColors   *ColorScheme     `json:"darkColors"`
	Typography   *ThemeTypography `json:"typography"`
	Spacing      *ThemeSpacing    `json:"spacing"`
	Effects      *ThemeEffects    `json:"effects"`
	Mode         string           `json:"mode"`
	Buttons      *ThemeButtons    `json:"buttons,omitempty"`
	Inputs       *ThemeInputs     `json:"inputs,omitempty"`
	Cards        *ThemeCards      `json:"cards,omitempty"`
	CustomColors []*CustomColor   `json:"customColors,omitempty"`
}

// CustomColor represents a user-defined color variable with light and dark mode values
type CustomColor struct {
	Name       string `json:"name"`             // Variable name (e.g., "brand") - becomes --color-{name}
	LightValue string `json:"lightValue"`        // HSL value for light mode
	DarkValue  string `json:"darkValue"`         // HSL value for dark mode
	Source     string `json:"source,omitempty"` // "" = user-created, "pluginname" = plugin-provisioned
}

// ColorScheme represents colors for a single mode (light or dark)
type ColorScheme struct {
	Background          string `json:"background"`
	Foreground          string `json:"foreground"`
	Card                string `json:"card"`
	CardForeground      string `json:"cardForeground"`
	Popover             string `json:"popover"`
	PopoverForeground   string `json:"popoverForeground"`
	Primary             string `json:"primary"`
	PrimaryForeground   string `json:"primaryForeground"`
	Secondary           string `json:"secondary"`
	SecondaryForeground string `json:"secondaryForeground"`
	Muted               string `json:"muted"`
	MutedForeground     string `json:"mutedForeground"`
	Accent              string `json:"accent"`
	AccentForeground    string `json:"accentForeground"`
	Destructive         string `json:"destructive"`
	DestructiveForeground string `json:"destructiveForeground"`
	Border              string `json:"border"`
	Input               string `json:"input"`
	Ring                string `json:"ring"`
}

// ThemeTypography represents typography settings
type ThemeTypography struct {
	FontHeading    string `json:"fontHeading"`
	FontBody       string `json:"fontBody"`
	FontMono       string `json:"fontMono"`
	FontSizeBase   string `json:"fontSizeBase"`
	LineHeightBase string `json:"lineHeightBase"`
	FontWeightBase string `json:"fontWeightBase"`
}

// ThemeSpacing represents spacing settings
type ThemeSpacing struct {
	Radius         string `json:"radius"`
	ButtonRadius   string `json:"buttonRadius"`
	CardRadius     string `json:"cardRadius"`
	InputRadius    string `json:"inputRadius"`
	PillButtons    bool   `json:"pillButtons"`
	BorderWidth    string `json:"borderWidth"`
	ContainerWidth string `json:"containerWidth"`
	SpacingScale   string `json:"spacingScale"`
}

// ThemeEffects represents shadow, motion, and effect settings
type ThemeEffects struct {
	ShadowIntensity  int    `json:"shadowIntensity"`
	ShadowColor      string `json:"shadowColor"`
	ShadowBlur       string `json:"shadowBlur"`
	ElevationPreset  string `json:"elevationPreset"`
	TransitionSpeed  string `json:"transitionSpeed"`
	ReduceMotion     bool   `json:"reduceMotion"`
	HoverIntensity   string `json:"hoverIntensity"`
}

// ButtonTypeConfig represents configuration for a single button type
type ButtonTypeConfig struct {
	BgColor     string `json:"bgColor"`     // CSS value: "var(--primary)" | "transparent" | HSL
	TextColor   string `json:"textColor"`   // CSS value: "var(--primary-foreground)" | HSL
	BorderColor string `json:"borderColor"` // CSS value or empty
	BorderWidth string `json:"borderWidth"` // "0" | "1" | "2" (px)
	Radius      string `json:"radius"`      // rem value or "pill"
	Shadow      string `json:"shadow"`      // "none" | "sm" | "md" | "lg"
	HoverBg     string `json:"hoverBg"`     // CSS value for hover
	HoverText   string `json:"hoverText"`   // CSS value for hover
	Size        string `json:"size"`        // "sm" | "md" | "lg" - default button size
}

// ThemeButtons represents all button type configurations
type ThemeButtons struct {
	Primary     *ButtonTypeConfig            `json:"primary"`
	Secondary   *ButtonTypeConfig            `json:"secondary"`
	Outline     *ButtonTypeConfig            `json:"outline"`
	Ghost       *ButtonTypeConfig            `json:"ghost"`
	Link        *ButtonTypeConfig            `json:"link"`
	Destructive *ButtonTypeConfig            `json:"destructive"`
	Custom      map[string]*ButtonTypeConfig `json:"custom,omitempty"`
}

// InputVariantConfig represents configuration for a single input variant
type InputVariantConfig struct {
	BgColor       string `json:"bgColor"`       // CSS value: "var(--background)" | "var(--muted)" | transparent
	BorderColor   string `json:"borderColor"`   // CSS value: "var(--input)" | "var(--border)"
	BorderWidth   string `json:"borderWidth"`   // "0" | "1" | "2" (px)
	TextColor     string `json:"textColor"`     // CSS value: "var(--foreground)"
	FocusRing     string `json:"focusRing"`     // CSS value: "var(--ring)"
	FocusBg       string `json:"focusBg"`       // Background when focused
	FocusBorder   string `json:"focusBorder"`   // Border when focused
	HoverBg       string `json:"hoverBg"`       // Background on hover (for ghost variant)
	PlaceholderColor string `json:"placeholderColor"` // Placeholder text color
}

// ThemeInputs represents all input variant configurations
type ThemeInputs struct {
	Default  *InputVariantConfig `json:"default"`
	Filled   *InputVariantConfig `json:"filled"`
	Outlined *InputVariantConfig `json:"outlined"`
	Ghost    *InputVariantConfig `json:"ghost"`
}

// ThemeCards represents card styling configuration
type ThemeCards struct {
	// Border
	BorderWidth string `json:"borderWidth"` // "0", "1", "2", "4" (px)
	BorderStyle string `json:"borderStyle"` // "solid", "dashed", "dotted"
	BorderColor string `json:"borderColor"` // CSS var or HSL value

	// Shadow
	Shadow      string `json:"shadow"`      // "none", "sm", "md", "lg", "xl"
	ShadowColor string `json:"shadowColor"` // HSL for colored shadows

	// Glass Effects
	BgOpacity    string `json:"bgOpacity"`    // "100", "90", "80", "70" (percent)
	BackdropBlur string `json:"backdropBlur"` // "none", "sm", "md", "lg"

	// Hover Effects
	HoverEffect string `json:"hoverEffect"` // "none", "lift", "glow", "scale"
}