Added new stats reporter to check suitable redis pool size

di/db.go

@@ -1,8 +1,10 @@
 package di
 
 import (
+	"context"
 	"fmt"
 	"path"
+	"time"
 
 	"github.com/goava/di"
 	"github.com/spf13/viper"
@@ -23,6 +25,7 @@ var db = di.Options(
 	di.Provide(newRedis,
 		di.As(new(http.SkinsRepository)),
 		di.As(new(mojangtextures.UUIDsStorage)),
+		di.As(new(es.RedisPoolCheckable)),
 	),
 	di.Provide(newFSFactory,
 		di.As(new(http.CapesRepository)),
@@ -43,6 +46,12 @@ func newRedis(container *di.Container, config *viper.Viper) (*redis.Redis, error
 		return nil, err
 	}
 
+	if err := container.Provide(func() es.ReporterFunc {
+		return es.AvailableRedisPoolSizeReporter(conn, time.Second, context.Background())
+	}, di.As(new(es.Reporter))); err != nil {
+		return nil, err
+	}
+
 	if err := container.Provide(func() *namedHealthChecker {
 		return &namedHealthChecker{
 			Name:    "redis",

di/handlers.go

@@ -74,6 +74,11 @@ func newHandlerFactory(
 		mount(router, "/api", apiRouter)
 	}
 
+	err := container.Invoke(enableReporters)
+	if err != nil {
+		return nil, err
+	}
+
 	// Resolve health checkers last, because all the services required by the application
 	// must first be initialized and each of them can publish its own checkers
 	var healthCheckers []*namedHealthChecker

di/logger.go

@@ -13,6 +13,7 @@ import (
 	"github.com/mono83/slf/wd"
 	"github.com/spf13/viper"
 
+	"github.com/elyby/chrly/eventsubscribers"
 	"github.com/elyby/chrly/version"
 )
 
@@ -95,3 +96,9 @@ func newStatsReporter(config *viper.Viper) (slf.StatsReporter, error) {
 
 	return wd.Custom("", "", dispatcher), nil
 }
+
+func enableReporters(reporter slf.StatsReporter, factories []eventsubscribers.Reporter) {
+	for _, factory := range factories {
+		factory.Enable(reporter)
+	}
+}