from fastapi import APIRouter, HTTPException
import uuid

# In-memory storage
users = []
posts = []

router = APIRouter()

@router.post("/signup")
async def signup_user(
    username: str,
    email: str,
    password: str
):
    """Create new user account"""
    if any(u["username"] == username for u in users):
        raise HTTPException(status_code=400, detail="Username already exists")
        
    if any(u["email"] == email for u in users):
        raise HTTPException(status_code=400, detail="Email already registered")

    user_id = str(uuid.uuid4())
    user = {
        "id": user_id,
        "username": username,
        "email": email,
        "password": password,
        "disabled": False
    }
    users.append(user)

    return {
        "message": "User created successfully",
        "user_id": user_id,
        "username": username,
        "next_steps": [
            "Verify your email",
            "Complete profile setup"
        ]
    }