colorschemedetect.go RawHistoryFolder

1package middleware
2
3import (
4	"github.com/labstack/echo-contrib/session"
5	"github.com/labstack/echo/v4"
6)
7
8// ColorSchemeDetection detects the current color scheme and sets it in the context based on the "Sec-CH-Prefers-Color-Scheme" header
9func ColorSchemeDetection(next echo.HandlerFunc) echo.HandlerFunc {
10	ColorSchemeKey := "CurrentColorScheme"
11	return func(c echo.Context) error {
12		colorScheme := detectCurrentColorScheme(c)
13		c.Set(ColorSchemeKey, colorScheme)
14		return next(c)
15	}
16}
17
18func detectCurrentColorScheme(c echo.Context) string {
19	// Check if the color scheme key is set in the session storage
20	sess, err := session.Get("session", c)
21	if err != nil {
22		return "light"
23	}
24
25	if colorSchemeValue, ok := sess.Values["colorScheme"]; ok && colorSchemeValue != nil {
26		return colorSchemeValue.(string) // Return the color scheme value from the session storage
27	}
28
29	// If color scheme key is not set, proceed with "Sec-CH-Prefers-Color-Scheme" header detection
30	header := c.Request().Header.Get("Sec-CH-Prefers-Color-Scheme")
31	if header == "dark" {
32		return "dark"
33	}
34	return "light" // Default to light mode
35}