41bbd8c182
Complete rewrite from task management to full-featured chat system: Core Features: - Real-time WebSocket messaging with connection management - Direct messages and group chats with admin controls - Message types: text, images, videos, audio, documents - Message status tracking: sent, delivered, read receipts - Typing indicators and user presence (online/offline) - Message replies, editing, and deletion Security & Encryption: - End-to-end encryption with RSA + AES hybrid approach - JWT authentication for API and WebSocket connections - Secure file storage with access control - Automatic RSA key pair generation per user Media & File Sharing: - Multi-format file upload (images, videos, audio, documents) - Automatic thumbnail generation for images/videos - File size validation and MIME type checking - Secure download endpoints with permission checks Notifications & Alerts: - Real-time WebSocket notifications - Push notifications via Firebase integration - @username mention alerts with notification history - Unread message and mention counting - Custom notification types (message, mention, group invite) Advanced Features: - Group chat management with roles (member, admin, owner) - User search and chat member management - Message pagination and chat history - Last seen timestamps and activity tracking - Comprehensive API documentation with WebSocket events Architecture: - Clean layered architecture with services, models, schemas - WebSocket connection manager for real-time features - Modular notification system with multiple channels - Comprehensive error handling and validation - Production-ready with Docker support Technologies: FastAPI, WebSocket, SQLAlchemy, SQLite, Cryptography, Firebase, Pillow
27 lines
1.1 KiB
Python
27 lines
1.1 KiB
Python
from sqlalchemy import Column, Integer, String, DateTime, Boolean, ForeignKey, Enum
|
|
from sqlalchemy.orm import relationship
|
|
from sqlalchemy.sql import func
|
|
from enum import Enum as PyEnum
|
|
from app.db.base import Base
|
|
|
|
class MemberRole(PyEnum):
|
|
MEMBER = "member"
|
|
ADMIN = "admin"
|
|
OWNER = "owner"
|
|
|
|
class ChatMember(Base):
|
|
__tablename__ = "chat_members"
|
|
|
|
id = Column(Integer, primary_key=True, index=True)
|
|
chat_id = Column(Integer, ForeignKey("chats.id"), nullable=False)
|
|
user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
|
|
role = Column(Enum(MemberRole), default=MemberRole.MEMBER)
|
|
nickname = Column(String, nullable=True) # Chat-specific nickname
|
|
is_muted = Column(Boolean, default=False)
|
|
is_banned = Column(Boolean, default=False)
|
|
joined_at = Column(DateTime(timezone=True), server_default=func.now())
|
|
last_read_message_id = Column(Integer, nullable=True) # For unread count
|
|
|
|
# Relationships
|
|
chat = relationship("Chat", back_populates="members")
|
|
user = relationship("User", back_populates="chat_members") |