Added Chronos to schedule tasks, restructured config as common pkg, updated server pkg

src/internal/chronos/chronos.go

@@ -0,0 +1,52 @@
+package chronos
+
+import (
+	"log"
+	"time"
+
+	"git.ego.freeddns.org/egommerce/identity-service/common"
+	"git.ego.freeddns.org/egommerce/identity-service/internal/chronos/jobs"
+
+	"github.com/go-redis/redis/v8"
+	"github.com/jackc/pgx/v5/pgxpool"
+	"github.com/onatm/clockwerk"
+)
+
+type Chronos struct {
+	handlers map[string]any
+}
+
+func New(c *common.Config) *Chronos {
+	return &Chronos{
+		handlers: make(map[string]any),
+	}
+}
+
+func (c *Chronos) Start() error {
+	job := jobs.NewCachePermissionsJob()
+	s := clockwerk.New()
+	s.Every(30 * time.Second).Do(job)
+	s.Start()
+
+	return nil
+}
+
+func (c *Chronos) RegisterHandler(name string, fn func() any) {
+	c.handlers[name] = fn()
+}
+
+func (s *Chronos) OnShutdown() {
+	log.Println("Chronos is going down...")
+
+	// s.GetDatabase().Close()
+}
+
+// Plugin helper funcitons
+// TODO: move functions below to some common place
+func (s *Chronos) GetCache() *redis.Client {
+	return (s.handlers["cache"]).(*redis.Client)
+}
+
+func (s *Chronos) GetDatabase() *pgxpool.Pool {
+	return (s.handlers["database"]).(*pgxpool.Pool)
+}