have user data persist between restarts in redis session

src/main/login.go

@@ -6,6 +6,7 @@ import (
 	"strings"
 
 	"astraltech.xyz/accountmanager/src/logging"
+	"astraltech.xyz/accountmanager/src/store"
 )
 
 type LoginPageData struct {
@@ -32,9 +33,15 @@ func loginHandler(w http.ResponseWriter, r *http.Request) {
 
 		logging.Infof("New Login request for %s\n", username)
 		newUserData, err := authenticateUser(username, password)
-		userDataMutex.Lock()
-		userData[username] = newUserData
-		userDataMutex.Unlock()
+
+		userDataErr := userData.Create(username, newUserData)
+		if userDataErr == store.ErrKeyAlreadyExists {
+			userData.Update(username, newUserData)
+		} else if userDataErr != nil {
+			logging.Error(userDataErr.Error())
+			return
+		}
+
 		if err == ErrPasswordExpired {
 			http.Redirect(w, r, "/reset-password?token=this_is_the_only_token_that_works", http.StatusFound)
 		} else if err != nil {

src/main/main.go

@@ -7,7 +7,6 @@ import (
 	"log"
 	"net/http"
 	"strings"
-	"sync"
 
 	"astraltech.xyz/accountmanager/src/components"
 	"astraltech.xyz/accountmanager/src/email"
@@ -15,6 +14,7 @@ import (
 	"astraltech.xyz/accountmanager/src/ldap"
 	"astraltech.xyz/accountmanager/src/logging"
 	"astraltech.xyz/accountmanager/src/session"
+	"astraltech.xyz/accountmanager/src/store"
 )
 
 var (
@@ -31,8 +31,7 @@ type UserData struct {
 }
 
 var (
-	userData      = make(map[string]*UserData)
-	userDataMutex sync.RWMutex
+	userData store.KeyValueStore[*UserData]
 )
 
 var ErrPasswordExpired = errors.New("Password expired")
@@ -94,25 +93,22 @@ func profileHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	_, exists := userData[sessionData.UserID]
-
-	if !exists {
-		logging.Error("Session id exists but user does not exist")
+	data, err := userData.Get(sessionData.UserID)
+	if err != nil {
+		logging.Error(err.Error())
 		http.Redirect(w, r, "/login", http.StatusSeeOther)
 		return
 	}
 
 	if r.Method == http.MethodGet {
 		tmpl := template.Must(template.ParseFiles("src/pages/profile_page.html"))
-		userDataMutex.RLock()
 
 		tmpl.Execute(w, ProfileData{
 			Username:    sessionData.UserID,
-			Email:       userData[sessionData.UserID].Email,
-			DisplayName: userData[sessionData.UserID].DisplayName,
+			Email:       data.Email,
+			DisplayName: data.DisplayName,
 			CSRFToken:   sessionData.CSRFToken,
 		})
-		userDataMutex.RUnlock()
 		return
 	}
 }
@@ -207,8 +203,10 @@ func changePasswordHandler(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusOK)
 	w.Write([]byte(`{"success": true}`))
 
+	user_data, err := userData.Get(sessionData.UserID)
+
 	data := map[string]any{
-		"Username":    userData[sessionData.UserID].DisplayName,
+		"Username":    user_data.DisplayName,
 		"ServiceName": "Astral Tech",
 	}
 
@@ -216,7 +214,7 @@ func changePasswordHandler(w http.ResponseWriter, r *http.Request) {
 	if err != nil {
 		logging.Errorf("Failed to load email template: %s", err.Error())
 	}
-	noReplyEmail.SendEmail([]string{userData[sessionData.UserID].Email}, "Password expired", email_template)
+	noReplyEmail.SendEmail([]string{user_data.Email}, "Password expired", email_template)
 }
 
 func main() {
@@ -231,11 +229,14 @@ func main() {
 	sessionManager = session.GetSessionManager()
 	if serverConfig.WebserverConfig.SessionStore == "in_memory" {
 		sessionManager.SetStoreType(session.InMemory)
+		userData = store.NewMemoryStore[*UserData]()
 	} else if serverConfig.WebserverConfig.SessionStore == "redis" {
 		sessionManager.SetStoreType(session.Redis, serverConfig.WebserverConfig.RedisConfigInfo.RedisURL, serverConfig.WebserverConfig.RedisConfigInfo.Prefix)
+		userData = store.NewRedisStore[*UserData](serverConfig.WebserverConfig.RedisConfigInfo.RedisURL, serverConfig.WebserverConfig.RedisConfigInfo.Prefix)
 	} else {
 		logging.Warnf("'%s' is an unknown session store type defaulting to in memory", serverConfig.WebserverConfig.SessionStore)
 		sessionManager.SetStoreType(session.InMemory)
+		userData = store.NewMemoryStore[*UserData]()
 	}
 
 	noReplyEmail = email.CreateEmailAccount(email.EmailAccountData{