package analytics

import (
	analyticsservice "backend/internal/service/analytics"
	"net/http"
	"strconv"

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

// AnalyticsController 数据分析控制器 // Logan.Li
type AnalyticsController struct {
	svc *analyticsservice.AnalyticsService
}

// NewAnalyticsController 创建控制器实例 // Logan.Li
func NewAnalyticsController(db *gorm.DB) *AnalyticsController {
	return &AnalyticsController{svc: analyticsservice.NewAnalyticsService(db)}
}

// GetDashboardStats 仪表板统计 // Logan.Li
func (ctrl *AnalyticsController) GetDashboardStats(c *gin.Context) {
	stats, err := ctrl.svc.GetDashboardStats()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": stats})
}

// GetExpiringLicenses 即将到期 License // Logan.Li
func (ctrl *AnalyticsController) GetExpiringLicenses(c *gin.Context) {
	days, _ := strconv.Atoi(c.DefaultQuery("days", "30"))
	licenses, err := ctrl.svc.GetExpiringLicenses(days)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": licenses})
}

// GetRecentActivities 最近活动 // Logan.Li
func (ctrl *AnalyticsController) GetRecentActivities(c *gin.Context) {
	limit, _ := strconv.Atoi(c.DefaultQuery("limit", "10"))
	activities, err := ctrl.svc.GetRecentActivities(limit)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": activities})
}

// GetOnlineStats 在线统计 // Logan.Li
func (ctrl *AnalyticsController) GetOnlineStats(c *gin.Context) {
	stats, err := ctrl.svc.GetOnlineStats()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": stats})
}

// GetRevenueStats 收入统计 // Logan.Li
func (ctrl *AnalyticsController) GetRevenueStats(c *gin.Context) {
	stats, err := ctrl.svc.GetRevenueStats()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": stats})
}

// GetLicenseGrowth License 增长趋势 // Logan.Li
func (ctrl *AnalyticsController) GetLicenseGrowth(c *gin.Context) {
	stats, err := ctrl.svc.GetLicenseGrowth()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": stats})
}

// GetProductDistribution 产品分布 // Logan.Li
func (ctrl *AnalyticsController) GetProductDistribution(c *gin.Context) {
	stats, err := ctrl.svc.GetProductDistribution()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": stats})
}

// GetGeoDistribution 地理分布 // Logan.Li
func (ctrl *AnalyticsController) GetGeoDistribution(c *gin.Context) {
	stats, err := ctrl.svc.GetGeoDistribution()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": stats})
}

// GetPlatformDistribution 客户端形态分布 // Logan.Li
func (ctrl *AnalyticsController) GetPlatformDistribution(c *gin.Context) {
	stats, err := ctrl.svc.GetPlatformDistribution()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": stats})
}

// GetLicenseGrowthDetail 增长明细（累计+新增） // Logan.Li
func (ctrl *AnalyticsController) GetLicenseGrowthDetail(c *gin.Context) {
	stats, err := ctrl.svc.GetLicenseGrowthDetail()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"code": 0, "data": stats})
}