admin: Add stats about submissions rate

admin/api/health.go

@@ -3,6 +3,7 @@ package api
 import (
 	"fmt"
 	"io/ioutil"
+	"log"
 	"net/http"
 	"os"
 	"path"
@@ -10,6 +11,7 @@ import (
 	"time"
 
 	"srs.epita.fr/fic-server/admin/pki"
+	"srs.epita.fr/fic-server/libfic"
 
 	"github.com/gin-gonic/gin"
 )
@@ -31,6 +33,8 @@ func declareHealthRoutes(router *gin.RouterGroup) {
 		})
 	})
 	router.GET("/health.json", GetHealth)
+	router.GET("/submissions-stats.json", GetSubmissionsStats)
+	router.GET("/validations-stats.json", GetValidationsStats)
 }
 
 type healthFileReport struct {
@@ -73,3 +77,67 @@ func GetHealth(c *gin.Context) {
 
 	c.JSON(http.StatusOK, getHealth(TimestampCheck))
 }
+
+type SubmissionsStats struct {
+	NbSubmissionLastMinute  uint `json:"nbsubminute"`
+	NbSubmissionLast5Minute uint `json:"nbsub5minute"`
+	NbSubmissionLastQuarter uint `json:"nbsubquarter"`
+	NbSubmissionLastHour    uint `json:"nbsubhour"`
+	NbSubmissionLastDay     uint `json:"nbsubday"`
+}
+
+func calcSubmissionsStats(tries []time.Time) (stats SubmissionsStats) {
+	lastMinute := time.Now().Add(-1 * time.Minute)
+	last5Minute := time.Now().Add(-5 * time.Minute)
+	lastQuarter := time.Now().Add(-15 * time.Minute)
+	lastHour := time.Now().Add(-1 * time.Hour)
+	lastDay := time.Now().Add(-24 * time.Hour)
+
+	for _, t := range tries {
+		if lastMinute.Before(t) {
+			stats.NbSubmissionLastMinute += 1
+			stats.NbSubmissionLast5Minute += 1
+			stats.NbSubmissionLastQuarter += 1
+			stats.NbSubmissionLastHour += 1
+			stats.NbSubmissionLastDay += 1
+		} else if last5Minute.Before(t) {
+			stats.NbSubmissionLast5Minute += 1
+			stats.NbSubmissionLastQuarter += 1
+			stats.NbSubmissionLastHour += 1
+			stats.NbSubmissionLastDay += 1
+		} else if lastQuarter.Before(t) {
+			stats.NbSubmissionLastQuarter += 1
+			stats.NbSubmissionLastHour += 1
+			stats.NbSubmissionLastDay += 1
+		} else if lastHour.Before(t) {
+			stats.NbSubmissionLastHour += 1
+			stats.NbSubmissionLastDay += 1
+		} else if lastDay.Before(t) {
+			stats.NbSubmissionLastDay += 1
+		}
+	}
+
+	return
+}
+
+func GetSubmissionsStats(c *gin.Context) {
+	tries, err := fic.GetTries(nil, nil)
+	if err != nil {
+		log.Println("Unable to GetTries:", err.Error())
+		c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": "Unable to retrieves tries."})
+		return
+	}
+
+	c.JSON(http.StatusOK, calcSubmissionsStats(tries))
+}
+
+func GetValidationsStats(c *gin.Context) {
+	tries, err := fic.GetValidations(nil, nil)
+	if err != nil {
+		log.Println("Unable to GetTries:", err.Error())
+		c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"errmsg": "Unable to retrieves tries."})
+		return
+	}
+
+	c.JSON(http.StatusOK, calcSubmissionsStats(tries))
+}