from sqlalchemy import create_engine, Table, Column, Text, String, Integer, Float, DateTime, JSON, ForeignKey
from sqlalchemy.orm import relationship
import sqlalchemy.sql.functions as func
from sqlalchemy_utc import UtcDateTime, utcnow
from wtforms_alchemy import ModelForm

from app.sql.common import db, Base, Session

from app.settings import app_cfg

class Media(Base):
  """Table for storing references to media"""
  __tablename__ = 'media'
  id = Column(Integer, primary_key=True)
  type = Column(String(16, convert_unicode=True), nullable=False)
  tag = Column(String(64, convert_unicode=True), nullable=False)
  url = Column(String(256, convert_unicode=True), nullable=True)
  title = Column(String(256, convert_unicode=True), nullable=True)
  author = Column(String(256, convert_unicode=True), nullable=True)
  pre_title = Column(String(256, convert_unicode=True), nullable=True)
  translated_title = Column(String(256, convert_unicode=True), nullable=True)
  date = Column(String(256, convert_unicode=True), nullable=True)
  source = Column(String(256, convert_unicode=True), nullable=True)
  medium = Column(String(64, convert_unicode=True), nullable=True)
  start_ts = Column(Float, nullable=True)
  settings = Column(JSON, default={}, nullable=True)

  def toJSON(self):
    return {
      'id': self.id,
      'type': self.type,
      'tag': self.tag,
      'url': self.url,
      'title': self.title,
      'pre_title': self.pre_title,
      'translated_title': self.translated_title,
      'date': self.date,
      'source': self.source,
      'author': self.author,
      'medium': self.medium,
      'start_ts': self.start_ts,
      'settings': self.settings,
    }

class MediaForm(ModelForm):
  class Meta:
    model = Media
    exclude = ['settings']
  def get_session():
    return Session()