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refactor: extract session helpers for player identity resolution

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Add GetPlayerID, GetUserID, GetNickname to the sessions package.
Remove the inline player-ID-from-session pattern duplicated across
every handler in c4game and snakegame, and the local getPlayerID
helper in snakegame.
This commit is contained in:
Ryan Hamamura
2026-03-02 19:16:09 -10:00
parent 063b03ce25
commit 7eadfbbb0c
3 changed files with 67 additions and 79 deletions
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45
features/snakegame/handlers.go
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@@ -13,24 +13,11 @@ import (
"github.com/ryanhamamura/c4/features/snakegame/components"
"github.com/ryanhamamura/c4/features/snakegame/pages"
"github.com/ryanhamamura/c4/player"
"github.com/ryanhamamura/c4/sessions"
"github.com/ryanhamamura/c4/snake"
)
func getPlayerID(sessions *scs.SessionManager, r *http.Request) player.ID {
pid := sessions.GetString(r.Context(), "player_id")
if pid == "" {
pid = player.GenerateID(8)
sessions.Put(r.Context(), "player_id", pid)
}
userID := sessions.GetString(r.Context(), "user_id")
if userID != "" {
return player.ID(userID)
}
return player.ID(pid)
}
func HandleSnakePage(snakeStore *snake.SnakeStore, sessions *scs.SessionManager) http.HandlerFunc {
func HandleSnakePage(snakeStore *snake.SnakeStore, sm *scs.SessionManager) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
gameID := chi.URLParam(r, "id")
si, ok := snakeStore.Get(gameID)
@@ -39,9 +26,9 @@ func HandleSnakePage(snakeStore *snake.SnakeStore, sessions *scs.SessionManager)
return
}
playerID := getPlayerID(sessions, r)
nickname := sessions.GetString(r.Context(), "nickname")
userID := sessions.GetString(r.Context(), "user_id")
playerID := sessions.GetPlayerID(sm, r)
nickname := sessions.GetNickname(sm, r)
userID := sessions.GetUserID(sm, r)
// Auto-join if nickname exists and not already in game
if nickname != "" && si.GetPlayerSlot(playerID) < 0 {
@@ -79,7 +66,7 @@ func HandleSnakePage(snakeStore *snake.SnakeStore, sessions *scs.SessionManager)
}
}
func HandleSnakeEvents(snakeStore *snake.SnakeStore, nc *nats.Conn, sessions *scs.SessionManager) http.HandlerFunc {
func HandleSnakeEvents(snakeStore *snake.SnakeStore, nc *nats.Conn, sm *scs.SessionManager) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
gameID := chi.URLParam(r, "id")
si, ok := snakeStore.Get(gameID)
@@ -88,7 +75,7 @@ func HandleSnakeEvents(snakeStore *snake.SnakeStore, nc *nats.Conn, sessions *sc
return
}
playerID := getPlayerID(sessions, r)
playerID := sessions.GetPlayerID(sm, r)
mySlot := si.GetPlayerSlot(playerID)
sse := datastar.NewSSE(w, r, datastar.WithCompression(
@@ -187,7 +174,7 @@ func HandleSnakeEvents(snakeStore *snake.SnakeStore, nc *nats.Conn, sessions *sc
}
}
func HandleSetDirection(snakeStore *snake.SnakeStore, sessions *scs.SessionManager) http.HandlerFunc {
func HandleSetDirection(snakeStore *snake.SnakeStore, sm *scs.SessionManager) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
gameID := chi.URLParam(r, "id")
si, ok := snakeStore.Get(gameID)
@@ -196,7 +183,7 @@ func HandleSetDirection(snakeStore *snake.SnakeStore, sessions *scs.SessionManag
return
}
playerID := getPlayerID(sessions, r)
playerID := sessions.GetPlayerID(sm, r)
slot := si.GetPlayerSlot(playerID)
if slot < 0 {
http.Error(w, "not in game", http.StatusForbidden)
@@ -219,7 +206,7 @@ type chatSignals struct {
ChatMsg string `json:"chatMsg"`
}
func HandleSendChat(snakeStore *snake.SnakeStore, nc *nats.Conn, sessions *scs.SessionManager) http.HandlerFunc {
func HandleSendChat(snakeStore *snake.SnakeStore, nc *nats.Conn, sm *scs.SessionManager) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
gameID := chi.URLParam(r, "id")
si, ok := snakeStore.Get(gameID)
@@ -238,7 +225,7 @@ func HandleSendChat(snakeStore *snake.SnakeStore, nc *nats.Conn, sessions *scs.S
return
}
playerID := getPlayerID(sessions, r)
playerID := sessions.GetPlayerID(sm, r)
slot := si.GetPlayerSlot(playerID)
if slot < 0 {
http.Error(w, "not in game", http.StatusForbidden)
@@ -266,7 +253,7 @@ type nicknameSignals struct {
Nickname string `json:"nickname"`
}
func HandleSetNickname(snakeStore *snake.SnakeStore, sessions *scs.SessionManager) http.HandlerFunc {
func HandleSetNickname(snakeStore *snake.SnakeStore, sm *scs.SessionManager) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
gameID := chi.URLParam(r, "id")
si, ok := snakeStore.Get(gameID)
@@ -285,10 +272,10 @@ func HandleSetNickname(snakeStore *snake.SnakeStore, sessions *scs.SessionManage
return
}
sessions.Put(r.Context(), "nickname", signals.Nickname)
sm.Put(r.Context(), "nickname", signals.Nickname)
playerID := getPlayerID(sessions, r)
userID := sessions.GetString(r.Context(), "user_id")
playerID := sessions.GetPlayerID(sm, r)
userID := sessions.GetUserID(sm, r)
if si.GetPlayerSlot(playerID) < 0 {
player := &snake.Player{
@@ -306,7 +293,7 @@ func HandleSetNickname(snakeStore *snake.SnakeStore, sessions *scs.SessionManage
}
}
func HandleRematch(snakeStore *snake.SnakeStore, sessions *scs.SessionManager) http.HandlerFunc {
func HandleRematch(snakeStore *snake.SnakeStore, sm *scs.SessionManager) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
gameID := chi.URLParam(r, "id")
si, ok := snakeStore.Get(gameID)