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package admin
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import (
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"html/template"
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"net/http"
"go_blog/config"
"go_blog/models"
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"go_blog/utils"
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"github.com/gin-gonic/gin"
)
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// ListThemes 显示主题管理页面(返回主题列表和当前主题)
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func ListThemes(c *gin.Context) {
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// 从上下文中获取主题管理器
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tm, exists := c.Get("ThemeManager")
if !exists {
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c.String(http.StatusInternalServerError, "主题管理器未找到")
return
}
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themeManager, ok := tm.(*utils.ThemeManager)
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if !ok {
c.String(http.StatusInternalServerError, "主题管理器类型错误")
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return
}
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// 获取可用主题列表(读取 web/themes 目录下的所有子目录)
entries, err := themeManager.GetAvailableThemes() // 假设 ThemeManager 新增获取主题列表方法
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if err != nil {
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c.String(http.StatusInternalServerError, "读取主题目录失败: "+err.Error())
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return
}
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// 渲染管理页面模板
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// 直接加载 web/admin/themes.tmpl 文件(路径相对于项目根目录)
const themesTemplatePath = "web/admin/themes.tmpl" // 定义模板路径常量
tpl, err := template.ParseFiles(themesTemplatePath)
if err != nil {
c.String(http.StatusInternalServerError, "模板加载失败: "+err.Error())
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return
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}
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c.Header("Content-Type", "text/html; charset=utf-8")
err = tpl.Execute(c.Writer, gin.H{
"CurrentTheme": themeManager.CurrentTheme(),
"Themes": entries,
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})
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if err != nil {
c.String(http.StatusInternalServerError, "渲染模板失败: "+err.Error())
}
}
// SwitchTheme 处理主题切换请求
func SwitchTheme(c *gin.Context) {
// 从上下文中获取主题管理器
tm, exists := c.Get("ThemeManager")
if !exists {
c.JSON(http.StatusInternalServerError, gin.H{"error": "主题管理器未找到"})
return
}
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themeManager, ok := tm.(*utils.ThemeManager)
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if !ok {
c.JSON(http.StatusInternalServerError, gin.H{"error": "主题管理器类型错误"})
return
}
newTheme := c.PostForm("theme")
if newTheme == "" {
c.JSON(http.StatusBadRequest, gin.H{"error": "主题名称不能为空"})
return
}
// 校验主题是否存在(保持原有逻辑)
availableThemes, _ := themeManager.GetAvailableThemes()
themeExists := false
for _, t := range availableThemes {
if t == newTheme {
themeExists = true
break
}
}
if !themeExists {
c.JSON(http.StatusBadRequest, gin.H{"error": "无效的主题名称"})
return
}
// 加载新主题(保持原有逻辑)
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if err := themeManager.LoadTheme(newTheme); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "主题加载失败,请检查主题文件"})
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return
}
// 更新全局配置
globalConfig := config.GetGlobalConfig()
globalConfig.Theme.Current = newTheme
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// 调用options.go的SetOptionValue持久化配置
if err := models.SetOptionValue(models.DB, "current_theme", 0, newTheme); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "主题配置保存失败: " + err.Error()})
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return
}
c.JSON(http.StatusOK, gin.H{"status": "主题切换成功", "current_theme": newTheme})
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}