add new statistic page

backend/main.go

@@ -4,6 +4,7 @@ import (
 	"backend/env"
 	"backend/models"
 	"backend/server"
+	"backend/stats"
 	"backend/utils"
 	"flag"
 	"fmt"
@@ -119,6 +120,10 @@ func main() {
 	}))
 
 	//set logger for AuthMiddleware
+	s.Routes.Use(func(c *gin.Context) {
+		c.Set("logger", logger)
+		c.Next()
+	})
 	accessHandler.SetMiddlewareLogger(s.Routes)
 	api := s.Routes.Group("/api")
 	//set routes
@@ -136,6 +141,7 @@ func main() {
 	role.GET("/members", dbHandler.GetMember)
 	auth.GET("/events", dbHandler.GetEvent)
 	auth.GET("/groups", dbHandler.GetGroup)
+	auth.POST("/stats", stats.GetStats)
 
 	auth.GET("/users", accessHandler.GetUser)
 	auth.GET("/roles", accessHandler.GetRole)

backend/stats/stats.go

@@ -0,0 +1,54 @@
+package stats
+
+import (
+	"backend/utils"
+	"net/http"
+	"os"
+
+	"gitea.tecamino.com/paadi/tecamino-logger/logging"
+	"github.com/gin-gonic/gin"
+)
+
+type Stats struct {
+	Database     string `json:"database,omitempty"`
+	DatabaseSize int64  `json:"databaseSize,omitempty"`
+}
+
+func GetStats(c *gin.Context) {
+	middlewareData, err := utils.GetMiddlewareData(c, "logger")
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"error": err.Error(),
+		})
+	}
+
+	logger, ok := middlewareData.(*logging.Logger)
+	if !ok {
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"error": "middleware logger for state not defined",
+		})
+		return
+	}
+	var stats Stats
+	err = c.BindJSON(&stats)
+	if err != nil {
+		logger.Error("GetStats", err)
+		c.JSON(http.StatusInternalServerError, nil)
+		return
+	}
+
+	f, err := os.Stat(stats.Database)
+	if err != nil {
+		logger.Error("GetStats", err)
+		c.JSON(http.StatusInternalServerError, nil)
+		return
+	}
+
+	var returnStats = Stats{
+		DatabaseSize: f.Size(),
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"data": returnStats,
+	})
+}

backend/utils/middleware.go

@@ -0,0 +1,28 @@
+package utils
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func SetMiddlewareData(r *gin.Engine, key string, data any) {
+	//set logger for middleware
+	r.Use(func(c *gin.Context) {
+		c.Set(key, data)
+		c.Next()
+	})
+}
+
+func GetMiddlewareData(c *gin.Context, key string) (any, error) {
+	// Retrieve logger from Gin context
+	data, ok := c.Get("logger")
+	if !ok {
+		log.Fatal("middleware logger not set — use SetMiddlewareLogger first")
+		c.AbortWithStatusJSON(http.StatusInternalServerError, http.StatusInternalServerError)
+		return nil, fmt.Errorf("middleware key '%s'not set ", key)
+	}
+	return data, nil
+}