init go project

internal/ui/components/icon/icon.go

@@ -0,0 +1,118 @@
+// templui component icon - version: v0.101.0 installed by templui v0.101.0
+// 📚 Documentation: https://templui.io/docs/components/icon
+package icon
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"sync"
+
+	"github.com/a-h/templ"
+)
+
+// iconContents caches the fully generated SVG strings for icons that have been used,
+// keyed by a composite key of name and props to handle different stylings.
+var (
+	iconContents = make(map[string]string)
+	iconMutex    sync.RWMutex
+)
+
+// Props defines the properties that can be set for an icon.
+type Props struct {
+	Size        int
+	Color       string
+	Fill        string
+	Stroke      string
+	StrokeWidth string // Stroke Width of Icon, Usage: "2.5"
+	Class       string
+}
+
+// Icon returns a function that generates a templ.Component for the specified icon name.
+func Icon(name string) func(...Props) templ.Component {
+	return func(props ...Props) templ.Component {
+		var p Props
+		if len(props) > 0 {
+			p = props[0]
+		}
+
+		// Create a unique key for the cache based on icon name and all relevant props.
+		// This ensures different stylings of the same icon are cached separately.
+		cacheKey := fmt.Sprintf("%s|s:%d|c:%s|f:%s|sk:%s|sw:%s|cl:%s",
+			name, p.Size, p.Color, p.Fill, p.Stroke, p.StrokeWidth, p.Class)
+
+		return templ.ComponentFunc(func(ctx context.Context, w io.Writer) (err error) {
+			iconMutex.RLock()
+			svg, cached := iconContents[cacheKey]
+			iconMutex.RUnlock()
+
+			if cached {
+				_, err = w.Write([]byte(svg))
+				return err
+			}
+
+			// Not cached, generate it
+			// The actual generation now happens once and is cached.
+			generatedSvg, err := generateSVG(name, p) // p (Props) is passed to generateSVG
+			if err != nil {
+				// Provide more context in the error message
+				return fmt.Errorf("failed to generate svg for icon '%s' with props %+v: %w", name, p, err)
+			}
+
+			iconMutex.Lock()
+			iconContents[cacheKey] = generatedSvg
+			iconMutex.Unlock()
+
+			_, err = w.Write([]byte(generatedSvg))
+			return err
+		})
+	}
+}
+
+// generateSVG creates an SVG string for the specified icon with the given properties.
+// This function is called when an icon-prop combination is not yet in the cache.
+func generateSVG(name string, props Props) (string, error) {
+	// Get the raw, inner SVG content for the icon name from our internal data map.
+	content, err := getIconContent(name) // This now reads from internalSvgData
+	if err != nil {
+		return "", err // Error from getIconContent already includes icon name
+	}
+
+	size := props.Size
+	if size <= 0 {
+		size = 24 // Default size
+	}
+
+	fill := props.Fill
+	if fill == "" {
+		fill = "none" // Default fill
+	}
+
+	stroke := props.Stroke
+	if stroke == "" {
+		stroke = props.Color // Fallback to Color if Stroke is not set
+	}
+	if stroke == "" {
+		stroke = "currentColor" // Default stroke color
+	}
+
+	strokeWidth := props.StrokeWidth
+	if strokeWidth == "" {
+		strokeWidth = "2" // Default stroke width
+	}
+
+	// Construct the final SVG string.
+	// The data-lucide attribute helps identify these as Lucide icons if needed.
+	return fmt.Sprintf("<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"%d\" height=\"%d\" viewBox=\"0 0 24 24\" fill=\"%s\" stroke=\"%s\" stroke-width=\"%s\" stroke-linecap=\"round\" stroke-linejoin=\"round\" class=\"%s\" data-lucide=\"icon\">%s</svg>",
+		size, size, fill, stroke, strokeWidth, props.Class, content), nil
+}
+
+// getIconContent retrieves the raw inner SVG content for a given icon name.
+// It reads from the pre-generated internalSvgData map from icon_data.go.
+func getIconContent(name string) (string, error) {
+	content, exists := internalSvgData[name]
+	if !exists {
+		return "", fmt.Errorf("icon '%s' not found in internalSvgData map", name)
+	}
+	return content, nil
+}