feat: multiple sessions per story with streaming AI responses

server/index.js

@@ -310,24 +310,102 @@ app.delete("/api/stories/:id", requireAuth, async (req, res) => {
 
 // ============ GAME SESSIONS ROUTES ============
 
-// Получить сессию игры
+// Получить список сессий для истории
 app.get("/api/sessions/:storyId", requireAuth, async (req, res) => {
   try {
     const sessions = db.collection("game_sessions");
+    const userSessions = await sessions
+      .find({
+        storyId: req.params.storyId,
+        userId: req.session.userId,
+      })
+      .sort({ updatedAt: -1 })
+      .toArray();
+
+    // Возвращаем список с базовой инфой (без полных сообщений)
+    const sessionsList = userSessions.map((s) => ({
+      id: s._id.toString(),
+      name: s.name || "Сессия",
+      messagesCount: s.messages?.length || 0,
+      createdAt: s.createdAt,
+      updatedAt: s.updatedAt,
+    }));
+
+    res.json(sessionsList);
+  } catch (error) {
+    console.error("Get sessions list error:", error);
+    res.status(500).json({ error: "Failed to get sessions" });
+  }
+});
+
+// Получить конкретную сессию
+app.get("/api/sessions/:storyId/:sessionId", requireAuth, async (req, res) => {
+  try {
+    const sessions = db.collection("game_sessions");
+
     const session = await sessions.findOne({
+      _id: new ObjectId(req.params.sessionId),
       storyId: req.params.storyId,
       userId: req.session.userId,
     });
 
-    res.json(session);
+    if (!session) {
+      return res.status(404).json({ error: "Session not found" });
+    }
+
+    res.json({ ...session, id: session._id.toString() });
   } catch (error) {
     console.error("Get session error:", error);
     res.status(500).json({ error: "Failed to get session" });
   }
 });
 
-// Сохранить сессию игры
+// Создать новую сессию
 app.post("/api/sessions/:storyId", requireAuth, async (req, res) => {
+  try {
+    const sessions = db.collection("game_sessions");
+
+    // Считаем существующие сессии для нумерации
+    const existingCount = await sessions.countDocuments({
+      storyId: req.params.storyId,
+      userId: req.session.userId,
+    });
+
+    const sessionData = {
+      storyId: req.params.storyId,
+      userId: req.session.userId,
+      name: req.body.name || `Сессия ${existingCount + 1}`,
+      playerId: req.body.playerId || null,
+      messages: [],
+      currentState: {
+        location: "start",
+        health: 100,
+        inventory: [],
+        questProgress: {},
+      },
+      storySummary: "",
+      keyEvents: [],
+      createdAt: new Date(),
+      updatedAt: new Date(),
+    };
+
+    const result = await sessions.insertOne(sessionData);
+
+    res.json({
+      id: result.insertedId.toString(),
+      name: sessionData.name,
+      messagesCount: 0,
+      createdAt: sessionData.createdAt,
+      updatedAt: sessionData.updatedAt,
+    });
+  } catch (error) {
+    console.error("Create session error:", error);
+    res.status(500).json({ error: "Failed to create session" });
+  }
+});
+
+// Обновить сессию
+app.put("/api/sessions/:storyId/:sessionId", requireAuth, async (req, res) => {
   try {
     const sessions = db.collection("game_sessions");
 
@@ -343,30 +421,55 @@ app.post("/api/sessions/:storyId", requireAuth, async (req, res) => {
     const sessionData = {
       ...bodyWithoutMeta,
       messages,
-      storyId: req.params.storyId,
-      userId: req.session.userId,
       updatedAt: new Date(),
     };
 
-    await sessions.updateOne(
+    const result = await sessions.updateOne(
       {
+        _id: new ObjectId(req.params.sessionId),
         storyId: req.params.storyId,
         userId: req.session.userId,
       },
-      {
-        $set: sessionData,
-        $setOnInsert: { createdAt: new Date() },
-      },
-      { upsert: true },
+      { $set: sessionData },
     );
 
+    if (result.matchedCount === 0) {
+      return res.status(404).json({ error: "Session not found" });
+    }
+
     res.json({ success: true });
   } catch (error) {
-    console.error("Save session error:", error);
-    res.status(500).json({ error: "Failed to save session" });
+    console.error("Update session error:", error);
+    res.status(500).json({ error: "Failed to update session" });
   }
 });
 
+// Удалить сессию
+app.delete(
+  "/api/sessions/:storyId/:sessionId",
+  requireAuth,
+  async (req, res) => {
+    try {
+      const sessions = db.collection("game_sessions");
+
+      const result = await sessions.deleteOne({
+        _id: new ObjectId(req.params.sessionId),
+        storyId: req.params.storyId,
+        userId: req.session.userId,
+      });
+
+      if (result.deletedCount === 0) {
+        return res.status(404).json({ error: "Session not found" });
+      }
+
+      res.json({ success: true });
+    } catch (error) {
+      console.error("Delete session error:", error);
+      res.status(500).json({ error: "Failed to delete session" });
+    }
+  },
+);
+
 // ============ PLAYER CHARACTERS ROUTES ============
 
 // Получить всех персонажей пользователя