package handlers

import (
	"net/http"

	"github.com/gin-gonic/gin"

	"mengyastore-backend/internal/storage"
)

type StatsHandler struct {
	orderStore *storage.OrderStore
	siteStore  *storage.SiteStore
}

func NewStatsHandler(orderStore *storage.OrderStore, siteStore *storage.SiteStore) *StatsHandler {
	return &StatsHandler{orderStore: orderStore, siteStore: siteStore}
}

func (h *StatsHandler) GetStats(c *gin.Context) {
	totalOrders, err := h.orderStore.Count()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}
	totalVisits, err := h.siteStore.GetTotalVisits()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"data": gin.H{
			"totalOrders": totalOrders,
			"totalVisits": totalVisits,
		},
	})
}

func (h *StatsHandler) RecordVisit(c *gin.Context) {
	fingerprint := buildViewerFingerprint(c)
	totalVisits, counted, err := h.siteStore.RecordVisit(fingerprint)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"data": gin.H{
			"totalVisits": totalVisits,
			"counted":     counted,
		},
	})
}

func (h *StatsHandler) GetMaintenance(c *gin.Context) {
	enabled, reason, err := h.siteStore.GetMaintenance()
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{
		"data": gin.H{
			"maintenance": enabled,
			"reason":      reason,
		},
	})
}
