update

controllers/themes.go

@@ -0,0 +1,39 @@
+package controllers
+
+import (
+	"go_blog/themes"
+	"os"
+
+	"github.com/gin-gonic/gin"
+)
+
+// ListThemes 获取可用主题列表
+func ListThemes(c *gin.Context) {
+	// 从主题管理器获取当前主题
+	tm, exists := c.Get("ThemeManager")
+	if !exists {
+		c.JSON(500, gin.H{"error": "主题管理器未找到"})
+		return
+	}
+	themeManager := tm.(*themes.ThemeManager)
+
+	// 读取 web/themes 目录下的所有主题文件夹
+	themesDir := "web/themes"
+	entries, err := os.ReadDir(themesDir)
+	if err != nil {
+		c.JSON(500, gin.H{"error": "读取主题目录失败: " + err.Error()})
+		return
+	}
+
+	var themeList []string
+	for _, entry := range entries {
+		if entry.IsDir() {
+			themeList = append(themeList, entry.Name())
+		}
+	}
+
+	c.JSON(200, gin.H{
+		"current": themeManager.CurrentTheme(),
+		"themes":  themeList,
+	})
+}