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,
	})
}