feat(market): add Minha Intenções tab with panel, hook, and badge

- Introduced "Minhas Intenções" tab visible only to logged-in users.
- Integrated MyPurchaseIntentionsPanel and useMyPurchaseIntentions hook.
- Added tab badge showing count of pending intentions.
- Extended session API to include user’s main character for downstream features.

app/api/chats/[chatId]/messages/route.ts

@@ -0,0 +1,265 @@
+/**
+ * GET /api/chats/[chatId]/messages - Busca mensagens do chat
+ * POST /api/chats/[chatId]/messages - Envia mensagem (fallback se Socket.io não estiver disponível)
+ */
+
+import { NextRequest, NextResponse } from "next/server";
+import { requireAuth } from "@/lib/auth/middleware";
+import { connectMongoDB } from "@/lib/mongodb/connection";
+import { Chat } from "@/lib/mongodb/models/Chat";
+import { Message } from "@/lib/mongodb/models/Message";
+import { sendMessageSchema, getMessagesSchema } from "@/lib/validation/chat-schemas";
+import { secureLogger } from "@/lib/secure-logger";
+
+/**
+ * GET /api/chats/[chatId]/messages
+ * Busca mensagens do chat com paginação
+ */
+export async function GET(
+  request: NextRequest,
+  { params }: { params: Promise<{ chatId: string }> }
+) {
+  try {
+    const authResult = await requireAuth(request);
+    if (authResult instanceof NextResponse) return authResult;
+    const auth = authResult;
+
+    const { chatId } = await params;
+    const { searchParams } = new URL(request.url);
+    
+    const queryValidation = getMessagesSchema.safeParse({
+      page: searchParams.get("page"),
+      limit: searchParams.get("limit"),
+    });
+
+    if (!queryValidation.success) {
+      return NextResponse.json(
+        {
+          success: false,
+          error: "Parâmetros inválidos",
+          details: queryValidation.error.issues,
+        },
+        { status: 400 }
+      );
+    }
+
+    const { page, limit } = queryValidation.data;
+
+    await connectMongoDB();
+
+    // Verificar se chat existe e usuário tem acesso
+    const chat = await Chat.findOne({ chat_id: chatId });
+
+    if (!chat) {
+      return NextResponse.json(
+        { success: false, error: "Chat não encontrado" },
+        { status: 404 }
+      );
+    }
+
+    if (chat.buyer_id !== auth.userId && chat.seller_id !== auth.userId) {
+      return NextResponse.json(
+        { success: false, error: "Você não tem permissão para acessar este chat" },
+        { status: 403 }
+      );
+    }
+
+    // Buscar mensagens (não deletadas)
+    const skip = (page - 1) * limit;
+    const messages = await Message.find({
+      chat_id: chatId,
+      deleted_at: null,
+    })
+      .sort({ created_at: -1 })
+      .skip(skip)
+      .limit(limit);
+
+    const total = await Message.countDocuments({
+      chat_id: chatId,
+      deleted_at: null,
+    });
+
+    // Marcar mensagens como lidas
+    await Message.updateMany(
+      {
+        chat_id: chatId,
+        sender_id: { $ne: auth.userId },
+        read_at: null,
+      },
+      {
+        $set: { read_at: new Date() },
+      }
+    );
+
+    // Atualizar contador de não lidas
+    if (chat.buyer_id === auth.userId) {
+      chat.buyer_unread_count = 0;
+    } else {
+      chat.seller_unread_count = 0;
+    }
+    await chat.save();
+
+    // Serializar mensagens (ordem reversa para mostrar mais antigas primeiro)
+    const serializedMessages = messages
+      .reverse()
+      .map((msg) => ({
+        _id: msg._id.toString(),
+        chat_id: msg.chat_id,
+        sender_id: msg.sender_id,
+        content: msg.content,
+        created_at: msg.created_at.toISOString(),
+        read_at: msg.read_at?.toISOString() || null,
+        edited_at: msg.edited_at?.toISOString() || null,
+        message_type: msg.message_type,
+        metadata: msg.metadata || null,
+      }));
+
+    return NextResponse.json(
+      {
+        success: true,
+        messages: serializedMessages,
+        pagination: {
+          page,
+          limit,
+          total,
+          totalPages: Math.ceil(total / limit),
+        },
+      },
+      { status: 200 }
+    );
+  } catch (error) {
+    secureLogger.error("❌ Erro ao buscar mensagens", {
+      error: error instanceof Error ? error.message : "Erro desconhecido",
+      stack: error instanceof Error ? error.stack : undefined,
+    });
+
+    return NextResponse.json(
+      { success: false, error: "Erro ao buscar mensagens" },
+      { status: 500 }
+    );
+  }
+}
+
+/**
+ * POST /api/chats/[chatId]/messages
+ * Envia mensagem (fallback se Socket.io não estiver disponível)
+ */
+export async function POST(
+  request: NextRequest,
+  { params }: { params: Promise<{ chatId: string }> }
+) {
+  try {
+    const authResult = await requireAuth(request);
+    if (authResult instanceof NextResponse) return authResult;
+    const auth = authResult;
+
+    const { chatId } = await params;
+    const body = await request.json();
+    const validationResult = sendMessageSchema.safeParse(body);
+
+    if (!validationResult.success) {
+      return NextResponse.json(
+        {
+          success: false,
+          error: "Dados inválidos",
+          details: validationResult.error.issues,
+        },
+        { status: 400 }
+      );
+    }
+
+    const { content } = validationResult.data;
+
+    await connectMongoDB();
+
+    // Verificar se chat existe e usuário tem acesso
+    const chat = await Chat.findOne({ chat_id: chatId });
+
+    if (!chat) {
+      return NextResponse.json(
+        { success: false, error: "Chat não encontrado" },
+        { status: 404 }
+      );
+    }
+
+    if (chat.buyer_id !== auth.userId && chat.seller_id !== auth.userId) {
+      return NextResponse.json(
+        { success: false, error: "Você não tem permissão para enviar mensagens neste chat" },
+        { status: 403 }
+      );
+    }
+
+    // Criar mensagem
+    const message = new Message({
+      chat_id: chatId,
+      sender_id: auth.userId,
+      content,
+      message_type: "text",
+    });
+
+    await message.save();
+
+    // Atualizar chat
+    chat.last_message_at = new Date();
+    chat.last_message_preview = content.substring(0, 100);
+    
+    if (chat.buyer_id === auth.userId) {
+      chat.seller_unread_count += 1;
+    } else {
+      chat.buyer_unread_count += 1;
+    }
+
+    await chat.save();
+
+    // Tentar enviar via Socket.io se disponível
+    try {
+      const { getSocketIO } = await import("@/lib/socket/server");
+      const io = getSocketIO();
+      if (io) {
+        io.to(`chat:${chatId}`).emit("new_message", {
+          message: {
+            _id: message._id.toString(),
+            chat_id: message.chat_id,
+            sender_id: message.sender_id,
+            content: message.content,
+            created_at: message.created_at.toISOString(),
+            read_at: message.read_at?.toISOString() || null,
+            message_type: message.message_type,
+          },
+        });
+      }
+    } catch (socketError) {
+      // Socket.io não disponível, mensagem já foi salva
+      secureLogger.warn("Socket.io não disponível, mensagem salva via REST", {
+        chatId,
+      });
+    }
+
+    return NextResponse.json(
+      {
+        success: true,
+        message: {
+          _id: message._id.toString(),
+          chat_id: message.chat_id,
+          sender_id: message.sender_id,
+          content: message.content,
+          created_at: message.created_at.toISOString(),
+          read_at: message.read_at?.toISOString() || null,
+          message_type: message.message_type,
+        },
+      },
+      { status: 201 }
+    );
+  } catch (error) {
+    secureLogger.error("❌ Erro ao enviar mensagem", {
+      error: error instanceof Error ? error.message : "Erro desconhecido",
+      stack: error instanceof Error ? error.stack : undefined,
+    });
+
+    return NextResponse.json(
+      { success: false, error: "Erro ao enviar mensagem" },
+      { status: 500 }
+    );
+  }
+}
+

app/api/chats/[chatId]/route.ts

@@ -0,0 +1,76 @@
+/**
+ * GET /api/chats/[chatId] - Busca detalhes de um chat específico
+ */
+
+import { NextRequest, NextResponse } from "next/server";
+import { requireAuth } from "@/lib/auth/middleware";
+import { connectMongoDB } from "@/lib/mongodb/connection";
+import { Chat } from "@/lib/mongodb/models/Chat";
+import { secureLogger } from "@/lib/secure-logger";
+
+export async function GET(
+  request: NextRequest,
+  { params }: { params: Promise<{ chatId: string }> }
+) {
+  try {
+    const authResult = await requireAuth(request);
+    if (authResult instanceof NextResponse) return authResult;
+    const auth = authResult;
+
+    const { chatId } = await params;
+
+    await connectMongoDB();
+
+    // Buscar chat
+    const chat = await Chat.findOne({ chat_id: chatId });
+
+    if (!chat) {
+      return NextResponse.json(
+        { success: false, error: "Chat não encontrado" },
+        { status: 404 }
+      );
+    }
+
+    // Verificar se o usuário pertence ao chat
+    if (chat.buyer_id !== auth.userId && chat.seller_id !== auth.userId) {
+      return NextResponse.json(
+        { success: false, error: "Você não tem permissão para acessar este chat" },
+        { status: 403 }
+      );
+    }
+
+    return NextResponse.json(
+      {
+        success: true,
+        chat: {
+          chat_id: chat.chat_id,
+          listing_id: chat.listing_id,
+          buyer_id: chat.buyer_id,
+          seller_id: chat.seller_id,
+          created_at: chat.created_at.toISOString(),
+          updated_at: chat.updated_at.toISOString(),
+          last_message_at: chat.last_message_at?.toISOString() || null,
+          last_message_preview: chat.last_message_preview,
+          buyer_unread_count: chat.buyer_unread_count,
+          seller_unread_count: chat.seller_unread_count,
+          is_active: chat.is_active,
+          listing_cache: chat.listing_cache,
+          buyer_cache: chat.buyer_cache,
+          seller_cache: chat.seller_cache,
+        },
+      },
+      { status: 200 }
+    );
+  } catch (error) {
+    secureLogger.error("❌ Erro ao buscar chat", {
+      error: error instanceof Error ? error.message : "Erro desconhecido",
+      stack: error instanceof Error ? error.stack : undefined,
+    });
+
+    return NextResponse.json(
+      { success: false, error: "Erro ao buscar chat" },
+      { status: 500 }
+    );
+  }
+}
+

app/api/chats/mark-all-read/route.ts

@@ -0,0 +1,72 @@
+/**
+ * POST /api/chats/mark-all-read
+ * Marca todas as mensagens de todos os chats do usuário como lidas
+ */
+import { NextRequest, NextResponse } from "next/server";
+import { requireAuth } from "@/lib/auth/middleware";
+import { connectMongoDB } from "@/lib/mongodb/connection";
+import { Chat } from "@/lib/mongodb/models/Chat";
+import { Message } from "@/lib/mongodb/models/Message";
+import { secureLogger } from "@/lib/secure-logger";
+
+export async function POST(request: NextRequest) {
+  try {
+    const authResult = await requireAuth(request);
+    if (authResult instanceof NextResponse) return authResult;
+    const auth = authResult;
+
+    await connectMongoDB();
+
+    // Buscar todos os chats do usuário
+    const chats = await Chat.find({
+      $or: [{ buyer_id: auth.userId }, { seller_id: auth.userId }],
+      is_active: true,
+    });
+
+    // Para cada chat, marcar mensagens não lidas como lidas
+    const updatePromises = chats.map(async (chat) => {
+      const chatId = chat.chat_id;
+      
+      // Marcar mensagens como lidas
+      await Message.updateMany(
+        {
+          chat_id: chatId,
+          sender_id: { $ne: auth.userId },
+          read_at: null,
+        },
+        {
+          $set: { read_at: new Date() },
+        }
+      );
+
+      // Zerar contador de não lidas
+      if (chat.buyer_id === auth.userId) {
+        chat.buyer_unread_count = 0;
+      } else {
+        chat.seller_unread_count = 0;
+      }
+      
+      return chat.save();
+    });
+
+    await Promise.all(updatePromises);
+
+    return NextResponse.json(
+      {
+        success: true,
+        message: "Todos os chats marcados como lidos",
+      },
+      { status: 200 }
+    );
+  } catch (error) {
+    secureLogger.error("❌ Erro ao marcar chats como lidos", {
+      error: error instanceof Error ? error.message : "Erro desconhecido",
+      stack: error instanceof Error ? error.stack : undefined,
+    });
+
+    return NextResponse.json(
+      { success: false, error: "Erro ao marcar como lido" },
+      { status: 500 }
+    );
+  }
+}

app/api/chats/route.ts

@@ -0,0 +1,265 @@
+/**
+ * GET /api/chats - Lista chats do usuário
+ * POST /api/chats - Cria novo chat
+ */
+
+import { NextRequest, NextResponse } from "next/server";
+import { requireAuth } from "@/lib/auth/middleware";
+import { connectMongoDB } from "@/lib/mongodb/connection";
+import { Chat } from "@/lib/mongodb/models/Chat";
+import { createChatSchema } from "@/lib/validation/chat-schemas";
+import { getListingById } from "@/lib/prisma/queries/listings";
+import { getMainCharacter } from "@/lib/prisma/queries/characters";
+import { getUserById } from "@/lib/prisma/queries/users";
+import { secureLogger } from "@/lib/secure-logger";
+
+/**
+ * GET /api/chats
+ * Lista todos os chats do usuário autenticado
+ */
+export async function GET(request: NextRequest) {
+  try {
+    const authResult = await requireAuth(request);
+    if (authResult instanceof NextResponse) return authResult;
+    const auth = authResult;
+
+    await connectMongoDB();
+
+    // Buscar todos os chats do usuário (como comprador ou vendedor)
+    const chats = await Chat.find({
+      $or: [{ buyer_id: auth.userId }, { seller_id: auth.userId }],
+      is_active: true,
+    })
+      .sort({ updated_at: -1 })
+      .limit(100);
+
+    // Serializar datas
+    const serializedChats = chats.map((chat) => ({
+      chat_id: chat.chat_id,
+      listing_id: chat.listing_id,
+      buyer_id: chat.buyer_id,
+      seller_id: chat.seller_id,
+      created_at: chat.created_at.toISOString(),
+      updated_at: chat.updated_at.toISOString(),
+      last_message_at: chat.last_message_at?.toISOString() || null,
+      last_message_preview: chat.last_message_preview,
+      buyer_unread_count: chat.buyer_unread_count,
+      seller_unread_count: chat.seller_unread_count,
+      is_active: chat.is_active,
+      listing_cache: chat.listing_cache,
+      buyer_cache: chat.buyer_cache,
+      seller_cache: chat.seller_cache,
+    }));
+
+    return NextResponse.json(
+      {
+        success: true,
+        chats: serializedChats,
+        count: serializedChats.length,
+      },
+      { status: 200 }
+    );
+  } catch (error) {
+    secureLogger.error("❌ Erro ao buscar chats", {
+      error: error instanceof Error ? error.message : "Erro desconhecido",
+      stack: error instanceof Error ? error.stack : undefined,
+    });
+
+    return NextResponse.json(
+      { success: false, error: "Erro ao buscar chats" },
+      { status: 500 }
+    );
+  }
+}
+
+/**
+ * POST /api/chats
+ * Cria um novo chat entre comprador e vendedor
+ */
+export async function POST(request: NextRequest) {
+  try {
+    const authResult = await requireAuth(request);
+    if (authResult instanceof NextResponse) return authResult;
+    const auth = authResult;
+
+    const body = await request.json();
+    const validationResult = createChatSchema.safeParse(body);
+
+    if (!validationResult.success) {
+      return NextResponse.json(
+        {
+          success: false,
+          error: "Dados inválidos",
+          details: validationResult.error.issues,
+        },
+        { status: 400 }
+      );
+    }
+
+    const { listing_id, buyer_message } = validationResult.data;
+
+    await connectMongoDB();
+
+    // Buscar anúncio
+    const listing = await getListingById(listing_id);
+    if (!listing) {
+      return NextResponse.json(
+        { success: false, error: "Anúncio não encontrado" },
+        { status: 404 }
+      );
+    }
+
+    // Verificar se não é o próprio vendedor
+    if (listing.seller_id === auth.userId) {
+      return NextResponse.json(
+        { success: false, error: "Você não pode criar um chat com você mesmo" },
+        { status: 400 }
+      );
+    }
+
+    // Verificar se anúncio está ativo
+    if (listing.listing_status !== "active") {
+      return NextResponse.json(
+        { success: false, error: "Anúncio não está disponível para chat" },
+        { status: 400 }
+      );
+    }
+
+    // Gerar chat_id único
+    const chat_id = `${listing_id}_${auth.userId}_${listing.seller_id}`;
+
+    // Verificar se chat já existe
+    let chat = await Chat.findOne({ chat_id });
+
+    if (chat) {
+      // Chat já existe, retornar
+      return NextResponse.json(
+        {
+          success: true,
+          chat: {
+            chat_id: chat.chat_id,
+            listing_id: chat.listing_id,
+            buyer_id: chat.buyer_id,
+            seller_id: chat.seller_id,
+            created_at: chat.created_at.toISOString(),
+            updated_at: chat.updated_at.toISOString(),
+            last_message_at: chat.last_message_at?.toISOString() || null,
+            last_message_preview: chat.last_message_preview,
+            buyer_unread_count: chat.buyer_unread_count,
+            seller_unread_count: chat.seller_unread_count,
+            is_active: chat.is_active,
+            listing_cache: chat.listing_cache,
+            buyer_cache: chat.buyer_cache,
+            seller_cache: chat.seller_cache,
+          },
+          already_exists: true,
+        },
+        { status: 200 }
+      );
+    }
+
+    // Buscar dados do comprador
+    const buyer = await getUserById(auth.userId);
+    if (!buyer) {
+      return NextResponse.json(
+        { success: false, error: "Usuário não encontrado" },
+        { status: 404 }
+      );
+    }
+
+    const buyerCharacter = await getMainCharacter(auth.userId);
+
+    // Buscar dados do vendedor
+    const seller = await getUserById(listing.seller_id);
+    if (!seller) {
+      return NextResponse.json(
+        { success: false, error: "Vendedor não encontrado" },
+        { status: 404 }
+      );
+    }
+
+    const sellerCharacter = await getMainCharacter(listing.seller_id);
+
+    // Criar chat
+    chat = new Chat({
+      chat_id,
+      listing_id,
+      buyer_id: auth.userId,
+      seller_id: listing.seller_id,
+      listing_cache: {
+        item_name: listing.item_name,
+        item_image_url: null, // Imagem será obtida via item_id se necessário
+        price_pix: listing.price_pix ? Number(listing.price_pix) : null,
+        price_tibia_coins: listing.price_tibia_coins || null,
+        price_gold_coins: listing.price_gold_coins ? Number(listing.price_gold_coins) : null,
+        server_name: listing.server_name,
+        listing_status: listing.listing_status,
+      },
+      buyer_cache: {
+        user_id: buyer.user_id,
+        username: buyer.username,
+        character_name: buyerCharacter?.character_name || null,
+      },
+      seller_cache: {
+        user_id: seller.user_id,
+        username: seller.username,
+        character_name: sellerCharacter?.character_name || null,
+      },
+    });
+
+    await chat.save();
+
+    // Se houver mensagem inicial, criar
+    if (buyer_message && buyer_message.trim().length > 0) {
+      const { Message } = await import("@/lib/mongodb/models/Message");
+      const message = new Message({
+        chat_id,
+        sender_id: auth.userId,
+        content: buyer_message.trim(),
+        message_type: "text",
+      });
+      await message.save();
+
+      // Atualizar chat
+      chat.last_message_at = new Date();
+      chat.last_message_preview = buyer_message.substring(0, 100);
+      chat.seller_unread_count = 1;
+      await chat.save();
+    }
+
+    return NextResponse.json(
+      {
+        success: true,
+        chat: {
+          chat_id: chat.chat_id,
+          listing_id: chat.listing_id,
+          buyer_id: chat.buyer_id,
+          seller_id: chat.seller_id,
+          created_at: chat.created_at.toISOString(),
+          updated_at: chat.updated_at.toISOString(),
+          last_message_at: chat.last_message_at?.toISOString() || null,
+          last_message_preview: chat.last_message_preview,
+          buyer_unread_count: chat.buyer_unread_count,
+          seller_unread_count: chat.seller_unread_count,
+          is_active: chat.is_active,
+          listing_cache: chat.listing_cache,
+          buyer_cache: chat.buyer_cache,
+          seller_cache: chat.seller_cache,
+        },
+        already_exists: false,
+      },
+      { status: 201 }
+    );
+  } catch (error) {
+    secureLogger.error("❌ Erro ao criar chat", {
+      error: error instanceof Error ? error.message : "Erro desconhecido",
+      stack: error instanceof Error ? error.stack : undefined,
+    });
+
+    return NextResponse.json(
+      { success: false, error: "Erro ao criar chat" },
+      { status: 500 }
+    );
+  }
+}
+

app/api/chats/unread-count/route.ts

@@ -0,0 +1,70 @@
+/**
+ * GET /api/chats/unread-count
+ * Retorna contagem de usuários únicos com mensagens não vistas
+ */
+import { NextRequest, NextResponse } from "next/server";
+import { requireAuth } from "@/lib/auth/middleware";
+import { connectMongoDB } from "@/lib/mongodb/connection";
+import { Chat } from "@/lib/mongodb/models/Chat";
+import { secureLogger } from "@/lib/secure-logger";
+
+export async function GET(request: NextRequest) {
+  try {
+    const authResult = await requireAuth(request);
+    if (authResult instanceof NextResponse) return authResult;
+    const auth = authResult;
+
+    await connectMongoDB();
+
+    // Buscar todos os chats do usuário
+    const chats = await Chat.find({
+      $or: [{ buyer_id: auth.userId }, { seller_id: auth.userId }],
+      is_active: true,
+    });
+
+    // Calcular contagem de usuários únicos com mensagens não vistas
+    const uniqueUsersWithUnread = new Set<number>();
+
+    chats.forEach((chat) => {
+      let unreadCount = 0;
+      let otherUserId: number;
+
+      if (chat.buyer_id === auth.userId) {
+        unreadCount = chat.buyer_unread_count;
+        otherUserId = chat.seller_id;
+      } else {
+        unreadCount = chat.seller_unread_count;
+        otherUserId = chat.buyer_id;
+      }
+
+      // Se há mensagens não vistas, adicionar o outro usuário ao Set
+      if (unreadCount > 0) {
+        uniqueUsersWithUnread.add(otherUserId);
+      }
+    });
+
+    return NextResponse.json(
+      {
+        success: true,
+        count: uniqueUsersWithUnread.size,
+        totalUnreadMessages: chats.reduce((total, chat) => {
+          if (chat.buyer_id === auth.userId) {
+            return total + chat.buyer_unread_count;
+          }
+          return total + chat.seller_unread_count;
+        }, 0),
+      },
+      { status: 200 }
+    );
+  } catch (error) {
+    secureLogger.error("❌ Erro ao buscar contagem de chats não lidos", {
+      error: error instanceof Error ? error.message : "Erro desconhecido",
+      stack: error instanceof Error ? error.stack : undefined,
+    });
+
+    return NextResponse.json(
+      { success: false, error: "Erro ao buscar contagem" },
+      { status: 500 }
+    );
+  }
+}