#!/usr/bin/python3

from sqlalchemy import Column, Integer, Float, String, Text, Date, ForeignKey, BOOLEAN
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from config import CONFIG

Base = declarative_base()


class User(Base):
    __tablename__   = 'user'
    id              = Column(Integer, primary_key=True, autoincrement=True)
    username        = Column(String(64))
    password        = Column(String(64))
    email           = Column(Text)
    settings        = Column(Text) #neki json...

class Card(Base):
    __tablename__   = 'card'
    id              = Column(Integer, primary_key=True, autoincrement=True)
    title           = Column(String(1024))
    owner_id        = Column(Integer, ForeignKey("user.id"), nullable=False)
    interest_rate   = Column(Float)
    item_location   = Column(String(1024))
    last_review     = Column(Text)
    share_id        = Column(Text) #explain: 0 means not shared, otherwise increment from db and generate new cards for all relevant(tbd) users
    card_type       = Column(String(1024)) 

class Deck(Base):
    __tablename__   = 'deck'
    id = Column(Integer, primary_key=True, autoincrement=True)
    owner_id = Column(Integer, ForeignKey("user.id"), nullable=False)
    cards_by_id = Column(Text)
    number_of_cards = Column(Integer) 
    current_card = Column(Integer)
    completed = Column(BOOLEAN)

class Rating(Base):
    __tablename__ = 'rating'
    id = Column(Integer, primary_key=True, autoincrement=True)
    user_id = Column(Integer, ForeignKey("user.id"), nullable=False)
    card_id = Column(Integer, ForeignKey("card.id"), nullable=False)
    rating_value = Column(Text)                                               #Yes, Maybe, No
    rating_time = Column(Date)

engine = create_engine(CONFIG['DB_CONNECTION'])

Base.metadata.create_all(engine)

def get_session():
    # Engine je samo enkrat treba inicializirat, se mi zdi.
    # engine = create_engine(CONFIG['DB_CONNECTION'])
    dbsessionmaker = sessionmaker(bind=engine)
    return dbsessionmaker()