from flask import Blueprint, render_template, request

from app.models.session import Session
from app.models.user import User
from app.extensions import db
from paper.parser import PaperParser


users = Blueprint("users", __name__, url_prefix="/users", template_folder="templates")


@users.route("/parse/<int:session_id>", methods=["POST"])
async def parse_users(session_id: int):
    session = Session.query.get_or_404(session_id)

    data = request.form

    async with PaperParser(session.name) as parser:
        users = await parser.get_participants(data.get("group"))

        for user in users:
            if not user.username:
                continue
            
            exists = db.session.query(User.id).filter_by(username=user.username).first()
            if not exists:
                db.session.add(
                    User(
                        first_name=user.first_name,
                        last_name=user.last_name,
                        username=user.username,
                        phone=user.phone,
                        session=session,
                    )
                )
        
        db.session.commit()

        return render_template("user_cards.j2", users=session.users)


@users.route("/<int:session_id>", methods=["GET"])
def get_users(session_id: int):
    users = [] #Session.query.get_or_404(session_id)

    return render_template("user_cards.j2", users=users)

@users.route("/<int:session_id>", methods=["DELETE"])
def delete_users(session_id):
    session: Session = Session.query.get_or_404(session_id)

    if session.has_depending_tasks():
        return 'Есть зависимые задачи', 409
    
    User.query.filter_by(session=session).delete()
    db.session.commit()
    
    return render_template("user_cards.j2", users=[])