Files
Home-Vue-Go/internal/api/stats.go
T

384 lines
13 KiB
Go

package api
import (
"fmt"
"net/http"
"sort"
"strconv"
"strings"
"sync"
"time"
"home-vue-go/internal/analytics"
"home-vue-go/internal/config"
"home-vue-go/internal/database"
"home-vue-go/internal/ent/visit"
"github.com/gin-gonic/gin"
)
type analyticsCache struct {
mu sync.Mutex
statsExpires time.Time
chartsExpires time.Time
statsKey string
chartsKey string
stats gin.H
trend []gin.H
sources []gin.H
}
var dashboardAnalyticsCache analyticsCache
var umamiClient = analytics.NewClient()
func GetStats(db *database.Database, cfg *config.Config) 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
}
siteCount, _ := db.Client.Site.Query().Count(c.Request.Context())
if settings.AnalyticsProvider == "umami" {
stats, status, err := loadUmamiStats(c, settings, siteCount, cfg)
if err != nil {
c.JSON(status, gin.H{"error": "Umami统计暂时不可用", "analyticsSource": "umami", "analyticsConfigured": false, "analyticsError": "unavailable"})
return
}
c.JSON(http.StatusOK, stats)
return
}
c.JSON(http.StatusOK, localStats(c, db, siteCount))
}
}
func GetChartData(db *database.Database, cfg *config.Config) 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
}
periodDays := chartPeriodDays(c.DefaultQuery("period", "7"))
if settings.AnalyticsProvider == "umami" {
trend, sources, status, err := loadUmamiCharts(c, settings, periodDays, cfg)
if err != nil {
c.JSON(status, gin.H{"error": "Umami统计暂时不可用", "analyticsSource": "umami", "analyticsConfigured": false, "analyticsError": "unavailable"})
return
}
c.JSON(http.StatusOK, gin.H{"trend": trend, "sources": sources, "analyticsSource": "umami", "analyticsConfigured": true, "analyticsError": ""})
return
}
trend, sources := localCharts(c, db, periodDays)
c.JSON(http.StatusOK, gin.H{"trend": trend, "sources": sources, "analyticsSource": "local", "analyticsConfigured": true, "analyticsError": ""})
}
}
func GetRecentVisits(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.StatusOK, []gin.H{})
return
}
limit := 5
if value, err := strconv.Atoi(c.DefaultQuery("limit", "5")); err == nil && value > 0 {
limit = value
if limit > 50 {
limit = 50
}
}
records, err := queryVisits(c, db, 0)
if err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "加载访问记录失败"})
return
}
result := make([]gin.H, 0, min(limit, len(records)))
now := time.Now()
for index := len(records) - 1; index >= 0 && len(result) < limit; index-- {
record := records[index]
result = append(result, gin.H{"path": record.Path, "ip": record.IP, "time": relativeVisitTime(now, record.VisitTime)})
}
c.JSON(http.StatusOK, result)
}
}
func NotifyConfigUpdate() gin.HandlerFunc {
return func(c *gin.Context) {
resetAnalyticsCache()
c.JSON(http.StatusOK, gin.H{"message": "配置更新通知已发送"})
}
}
func loadUmamiStats(c *gin.Context, settings *config.SiteSettings, siteCount int, appConfig *config.Config) (gin.H, int, error) {
credential, err := decryptUmamiCredential(settings, appConfig)
if err != nil {
return nil, http.StatusBadGateway, err
}
cacheKey := "stats:" + settings.UmamiWebsiteID + ":" + settings.UmamiAPIURL
dashboardAnalyticsCache.mu.Lock()
if dashboardAnalyticsCache.statsKey == cacheKey && time.Now().Before(dashboardAnalyticsCache.statsExpires) && dashboardAnalyticsCache.stats != nil {
value := dashboardAnalyticsCache.stats
dashboardAnalyticsCache.mu.Unlock()
return value, http.StatusOK, nil
}
dashboardAnalyticsCache.mu.Unlock()
clientConfig := analytics.Config{Mode: settings.UmamiAPIMode, APIURL: settings.UmamiAPIURL, Credential: credential, WebsiteID: settings.UmamiWebsiteID}
now := time.Now()
allTime, err := umamiClient.GetStats(c.Request.Context(), clientConfig, time.Unix(0, 0), now)
if err != nil {
return nil, http.StatusBadGateway, err
}
today := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
todayStats, err := umamiClient.GetStats(c.Request.Context(), clientConfig, today, now)
if err != nil {
return nil, http.StatusBadGateway, err
}
active, err := umamiClient.GetActive(c.Request.Context(), clientConfig)
if err != nil {
return nil, http.StatusBadGateway, err
}
result := gin.H{"totalViews": allTime.Pageviews, "uniqueVisitors": allTime.Visitors, "todayViews": todayStats.Pageviews, "activeVisitors": active, "totalSites": siteCount, "analyticsSource": "umami", "analyticsConfigured": true}
dashboardAnalyticsCache.mu.Lock()
dashboardAnalyticsCache.statsKey, dashboardAnalyticsCache.statsExpires, dashboardAnalyticsCache.stats = cacheKey, time.Now().Add(30*time.Second), result
dashboardAnalyticsCache.mu.Unlock()
return result, http.StatusOK, nil
}
func loadUmamiCharts(c *gin.Context, settings *config.SiteSettings, periodDays int, appConfig *config.Config) ([]gin.H, []gin.H, int, error) {
credential, err := decryptUmamiCredential(settings, appConfig)
if err != nil {
return nil, nil, http.StatusBadGateway, err
}
cacheKey := fmt.Sprintf("charts:%s:%d:%s", settings.UmamiWebsiteID, periodDays, settings.UmamiAPIURL)
dashboardAnalyticsCache.mu.Lock()
if dashboardAnalyticsCache.chartsKey == cacheKey && time.Now().Before(dashboardAnalyticsCache.chartsExpires) && dashboardAnalyticsCache.trend != nil {
trend, sources := dashboardAnalyticsCache.trend, dashboardAnalyticsCache.sources
dashboardAnalyticsCache.mu.Unlock()
return trend, sources, http.StatusOK, nil
}
dashboardAnalyticsCache.mu.Unlock()
clientConfig := analytics.Config{Mode: settings.UmamiAPIMode, APIURL: settings.UmamiAPIURL, Credential: credential, WebsiteID: settings.UmamiWebsiteID}
now := time.Now()
start := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location()).AddDate(0, 0, -periodDays+1)
pageviews, err := umamiClient.GetPageviews(c.Request.Context(), clientConfig, start, now)
if err != nil {
return nil, nil, http.StatusBadGateway, err
}
referrers, err := umamiClient.GetMetrics(c.Request.Context(), clientConfig, start, now, "referrer")
if err != nil {
return nil, nil, http.StatusBadGateway, err
}
trend := make([]gin.H, 0, len(pageviews))
for _, point := range pageviews {
trend = append(trend, gin.H{"label": point.X, "value": point.Y})
}
sources := percentageSources(referrers)
dashboardAnalyticsCache.mu.Lock()
dashboardAnalyticsCache.chartsKey, dashboardAnalyticsCache.chartsExpires, dashboardAnalyticsCache.trend, dashboardAnalyticsCache.sources = cacheKey, time.Now().Add(30*time.Second), trend, sources
dashboardAnalyticsCache.mu.Unlock()
return trend, sources, http.StatusOK, nil
}
func localStats(c *gin.Context, db *database.Database, siteCount int) gin.H {
records, err := queryVisits(c, db, 0)
if err != nil {
return gin.H{"totalViews": 0, "uniqueVisitors": 0, "todayViews": 0, "activeVisitors": 0, "totalSites": siteCount, "analyticsSource": "local", "analyticsConfigured": true, "analyticsError": "query_failed"}
}
now := time.Now()
start := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
unique := map[string]struct{}{}
active := map[string]struct{}{}
todayViews := 0
for _, record := range records {
key := record.IP + "|" + record.UserAgent
unique[key] = struct{}{}
if !record.VisitTime.Before(start) {
todayViews++
}
if !record.VisitTime.Before(now.Add(-5 * time.Minute)) {
active[key] = struct{}{}
}
}
return gin.H{"totalViews": len(records), "uniqueVisitors": len(unique), "todayViews": todayViews, "activeVisitors": len(active), "totalSites": siteCount, "analyticsSource": "local", "analyticsConfigured": true, "analyticsError": ""}
}
func localCharts(c *gin.Context, db *database.Database, periodDays int) ([]gin.H, []gin.H) {
records, err := queryVisits(c, db, 0)
if err != nil {
return emptyTrend(periodDays), []gin.H{{"label": "直接访问", "value": 100}}
}
now := time.Now()
trend := make([]gin.H, 0, periodDays)
for index := 0; index < periodDays; index++ {
date := now.AddDate(0, 0, -(periodDays - 1 - index))
dayStart := time.Date(date.Year(), date.Month(), date.Day(), 0, 0, 0, 0, date.Location())
dayEnd := dayStart.AddDate(0, 0, 1)
count := 0
for _, record := range records {
if !record.VisitTime.Before(dayStart) && record.VisitTime.Before(dayEnd) {
count++
}
}
trend = append(trend, gin.H{"label": date.Format("1/2"), "value": count})
}
counts := make(map[string]int)
for _, record := range records {
counts[classifyReferer(record.Referer)]++
}
sources := percentageCounts(counts, len(records))
return trend, sources
}
func queryVisits(c *gin.Context, db *database.Database, days int) ([]*structVisit, error) {
query := db.Client.Visit.Query().Order(visit.ByVisitTime())
if days > 0 {
query = query.Where(visit.VisitTimeGTE(time.Now().AddDate(0, 0, -days)))
}
rows, err := query.All(c.Request.Context())
if err != nil {
return nil, err
}
result := make([]*structVisit, len(rows))
for index, row := range rows {
result[index] = &structVisit{Path: row.Path, IP: row.IP, UserAgent: row.UserAgent, Referer: row.Referer, VisitTime: row.VisitTime}
}
return result, nil
}
type structVisit struct {
Path, IP, UserAgent, Referer string
VisitTime time.Time
}
func percentageSources(points []analytics.Point) []gin.H {
counts := make(map[string]int)
for _, point := range points {
counts[classifyReferer(point.X)] += point.Y
}
total := 0
for _, count := range counts {
total += count
}
return percentageCounts(counts, total)
}
func percentageCounts(counts map[string]int, total int) []gin.H {
if total <= 0 {
return []gin.H{{"label": "直接访问", "value": 100}}
}
type item struct {
label string
count, value, remainder int
}
items := make([]item, 0, len(counts))
used := 0
for label, count := range counts {
value := count * 100 / total
items = append(items, item{label: label, count: count, value: value, remainder: count * 100 % total})
used += value
}
sort.Slice(items, func(i, j int) bool {
if items[i].remainder != items[j].remainder {
return items[i].remainder > items[j].remainder
}
return items[i].label < items[j].label
})
for index := 0; index < 100-used && len(items) > 0; index++ {
items[index%len(items)].value++
}
sort.Slice(items, func(i, j int) bool {
if items[i].count != items[j].count {
return items[i].count > items[j].count
}
return items[i].label < items[j].label
})
result := make([]gin.H, 0, len(items))
for _, item := range items {
result = append(result, gin.H{"label": item.label, "value": item.value})
}
return result
}
func classifyReferer(referrer string) string {
referrer = strings.ToLower(strings.TrimSpace(referrer))
if referrer == "" {
return "直接访问"
}
for _, source := range []string{"google", "baidu", "bing", "yahoo", "sogou"} {
if strings.Contains(referrer, source) {
return "搜索引擎"
}
}
for _, source := range []string{"twitter", "facebook", "weibo", "wechat", "qq"} {
if strings.Contains(referrer, source) {
return "社交媒体"
}
}
return "其他"
}
func decryptUmamiCredential(settings *config.SiteSettings, appConfig *config.Config) (string, error) {
if settings.UmamiWebsiteID == "" || settings.UmamiCredential == "" {
return "", fmt.Errorf("Umami配置不完整")
}
if appConfig == nil {
return "", fmt.Errorf("统计加密配置不可用")
}
return appConfig.DecryptSecret(settings.UmamiCredential)
}
func resetAnalyticsCache() {
dashboardAnalyticsCache.mu.Lock()
dashboardAnalyticsCache.statsKey = ""
dashboardAnalyticsCache.chartsKey = ""
dashboardAnalyticsCache.statsExpires = time.Time{}
dashboardAnalyticsCache.chartsExpires = time.Time{}
dashboardAnalyticsCache.stats = nil
dashboardAnalyticsCache.trend = nil
dashboardAnalyticsCache.sources = nil
dashboardAnalyticsCache.mu.Unlock()
}
func chartPeriodDays(value string) int {
switch value {
case "30":
return 30
case "90":
return 90
default:
return 7
}
}
func emptyTrend(days int) []gin.H {
result := make([]gin.H, days)
for index := range result {
result[index] = gin.H{"label": "", "value": 0}
}
return result
}
func relativeVisitTime(now, visited time.Time) string {
diff := now.Sub(visited)
switch {
case diff < time.Minute:
return "刚刚"
case diff < time.Hour:
return fmt.Sprintf("%.0f分钟前", diff.Minutes())
case diff < 24*time.Hour:
return fmt.Sprintf("%.0f小时前", diff.Hours())
default:
return fmt.Sprintf("%.0f天前", diff.Hours()/24)
}
}
func min(left, right int) int {
if left < right {
return left
}
return right
}