package api

import (
	"net/http"
	"strings"

	"home-vue-go/internal/database"

	"github.com/gin-gonic/gin"
)

// TrackVisit stores a local visit only when local analytics is selected.
// Umami mode is tracked by the browser and must not be duplicated here.
func TrackVisit(db *database.Database) gin.HandlerFunc {
	return func(c *gin.Context) {
		settings, err := db.LoadSiteSettings(c.Request.Context())
		if err != nil {
			c.JSON(http.StatusInternalServerError, gin.H{"error": "加载统计配置失败"})
			return
		}
		if settings.AnalyticsProvider == "umami" {
			c.JSON(http.StatusNoContent, nil)
			return
		}
		var req struct {
			Path    string `json:"path"`
			Referer string `json:"referer"`
		}
		if err := c.ShouldBindJSON(&req); err != nil {
			c.JSON(http.StatusBadRequest, gin.H{"error": "参数错误"})
			return
		}
		path := strings.TrimSpace(req.Path)
		if path == "" || len(path) > 2048 {
			c.JSON(http.StatusBadRequest, gin.H{"error": "访问路径无效"})
			return
		}
		_, err = db.Client.Visit.Create().
			SetPath(path).
			SetIP(c.ClientIP()).
			SetUserAgent(c.GetHeader("User-Agent")).
			SetReferer(strings.TrimSpace(req.Referer)).
			Save(c.Request.Context())
		if err != nil {
			c.JSON(http.StatusInternalServerError, gin.H{"error": "访问记录保存失败"})
			return
		}
		c.JSON(http.StatusOK, gin.H{"message": "访问已记录", "analyticsSource": "local"})
	}
}