NeahFront3/app/api/rocket-chat/messages/route.ts

import { getServerSession } from "next-auth";
import { authOptions } from "@/app/api/auth/[...nextauth]/route";
import { NextResponse } from "next/server";

export async function GET() {
  try {
    const session = await getServerSession(authOptions);
    if (!session) {
      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
    }

    // Debug log to see all session data
    console.log('Session data:', {
      user: session.user,
      accessToken: session.accessToken ? 'present' : 'missing'
    });

    if (!session.accessToken) {
      return NextResponse.json({ error: "No access token found" }, { status: 401 });
    }

    // First get the username from Keycloak
    const keycloakResponse = await fetch(
      `${process.env.KEYCLOAK_BASE_URL}/realms/${process.env.KEYCLOAK_REALM}/protocol/openid-connect/userinfo`,
      {
        headers: {
          'Authorization': `Bearer ${session.accessToken}`
        }
      }
    );

    if (!keycloakResponse.ok) {
      console.error('Failed to get Keycloak user info:', {
        status: keycloakResponse.status,
        statusText: keycloakResponse.statusText,
        response: await keycloakResponse.text().catch(() => 'Could not get response text')
      });
      return NextResponse.json(
        { error: "Failed to get user info from Keycloak" },
        { status: keycloakResponse.status }
      );
    }

    const keycloakUser = await keycloakResponse.json();
    const username = keycloakUser.preferred_username;

    console.log('Keycloak user info:', {
      username,
      sub: keycloakUser.sub
    });

    if (!username) {
      return NextResponse.json(
        { error: "No username found in Keycloak user info" },
        { status: 400 }
      );
    }

    // First authenticate as admin to get an auth token
    const adminLoginResponse = await fetch(
      'https://parole.slm-lab.net/api/v1/login',
      {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json'
        },
        body: JSON.stringify({
          user: process.env.ROCKET_CHAT_ADMIN_USERNAME,
          password: process.env.ROCKET_CHAT_ADMIN_PASSWORD
        })
      }
    );

    if (!adminLoginResponse.ok) {
      console.error('Rocket.Chat admin login error:', {
        status: adminLoginResponse.status,
        statusText: adminLoginResponse.statusText,
        response: await adminLoginResponse.text().catch(() => 'Could not get response text')
      });
      return NextResponse.json(
        { error: "Failed to authenticate with Rocket.Chat" },
        { status: adminLoginResponse.status }
      );
    }

    const adminAuth = await adminLoginResponse.json();
    console.log('Admin auth success:', {
      hasToken: !!adminAuth.data?.authToken
    });

    // Get user info by username using admin token
    const userInfoResponse = await fetch(
      `https://parole.slm-lab.net/api/v1/users.info?username=${username}`,
      {
        headers: {
          'X-Auth-Token': adminAuth.data.authToken,
          'X-User-Id': adminAuth.data.userId
        }
      }
    );

    if (!userInfoResponse.ok) {
      console.error('Failed to get user info:', {
        status: userInfoResponse.status,
        statusText: userInfoResponse.statusText,
        response: await userInfoResponse.text().catch(() => 'Could not get response text')
      });
      return NextResponse.json(
        { error: "Failed to get user info" },
        { status: userInfoResponse.status }
      );
    }

    const userInfo = await userInfoResponse.json();
    console.log('User info success:', {
      userId: userInfo.user._id,
      username: userInfo.user.username
    });

    // Get the user's subscriptions (rooms they are in)
    const subscriptionsResponse = await fetch(
      'https://parole.slm-lab.net/api/v1/subscriptions.get',
      {
        headers: {
          'X-Auth-Token': adminAuth.data.authToken,
          'X-User-Id': userInfo.user._id
        }
      }
    );

    if (!subscriptionsResponse.ok) {
      console.error('Rocket.Chat subscriptions error:', {
        status: subscriptionsResponse.status,
        statusText: subscriptionsResponse.statusText,
        response: await subscriptionsResponse.text().catch(() => 'Could not get response text')
      });
      return NextResponse.json(
        { error: "Failed to fetch subscriptions" },
        { status: subscriptionsResponse.status }
      );
    }

    const subscriptions = await subscriptionsResponse.json();
    if (!subscriptions.update || subscriptions.update.length === 0) {
      return NextResponse.json({ messages: [] });
    }

    // Get the last message from each room
    const messages = await Promise.all(
      subscriptions.update.map(async (room: any) => {
        if (!room.lastMessage?._id) return null;
        
        const messageResponse = await fetch(
          `https://parole.slm-lab.net/api/v1/chat.getMessage?msgId=${room.lastMessage._id}`,
          {
            headers: {
              'X-Auth-Token': adminAuth.data.authToken,
              'X-User-Id': userInfo.user._id
            }
          }
        );

        if (messageResponse.ok) {
          const messageData = await messageResponse.json();
          return {
            ...messageData.message,
            roomName: room.name || 'Direct Message',
            roomType: room.t,
          };
        }
        console.error('Failed to fetch message:', {
          roomId: room._id,
          messageId: room.lastMessage._id,
          status: messageResponse.status,
          response: await messageResponse.text().catch(() => 'Could not get response text')
        });
        return null;
      })
    );

    // Filter out any null messages and sort by timestamp
    const validMessages = messages
      .filter((msg): msg is NonNullable<typeof msg> => msg !== null)
      .sort((a, b) => new Date(b.ts).getTime() - new Date(a.ts).getTime());

    return NextResponse.json({ messages: validMessages });
  } catch (error) {
    console.error('Error fetching messages:', error);
    return NextResponse.json(
      { error: "Internal server error" },
      { status: 500 }
    );
  }
}