from datetime import datetime
from minibase.app import db


class Companies(db.Model):
    __tablename__ = 'companies'
    id = db.Column(db.Integer, nullable=False, primary_key=True)
    name = db.Column(db.String(100), nullable=False)
    main_company = db.Column(db.Integer, nullable=False, default='1')
    subsidiary_of = db.Column(db.Integer, nullable=True, default='')
    website = db.Column(db.String(100), nullable=True, default='')
    street = db.Column(db.String(100), nullable=False)
    street_no = db.Column(db.Integer, nullable=False)
    city = db.Column(db.String(100), nullable=False)
    post_code = db.Column(db.Integer, nullable=False)
    state = db.Column(db.String(100), nullable=False)
    classification = db.Column(db.Integer, nullable=False, default=0)
    comment = db.Column(db.String(300), nullable=True)
    image_file = db.Column(db.String(20), nullable=False, default='default_company.jpg')
    upload_date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
    last_update_date = db.Column(db.DateTime, nullable=False, default=datetime.utcnow, onupdate=datetime.utcnow)

    # One To Many relationships where indexes can point o mutiple companies.
    # Example : One Legal_entity could cocern multiple companies. (There are surely more than just one GmBH)
    country_id = db.Column(db.Integer, db.ForeignKey('country.id'), nullable=True)
    legal_entity_id = db.Column(db.Integer, db.ForeignKey('company_legal_entity.id'), nullable=True)
    type_id = db.Column(db.Integer, db.ForeignKey('company_types.id'), nullable=True)
    industry_id = db.Column(db.Integer, db.ForeignKey('industry.id'), nullable=True)
    status_id = db.Column(db.Integer, db.ForeignKey('company_status.id'), nullable=True)

    # One To Many relationships for a company having mutliple elements of the following indexes
    # Example : One company would/could have many eployees
    employees = db.relationship('Person', backref='employer', lazy=True)
    projects = db.relationship('Project', backref='belongs_to', lazy=True)
    elements = db.relationship('Project_element', backref='company_ship_to', viewonly=True, lazy=True)
    notes = db.relationship('Company_note', backref='company', lazy=True)
    products = db.relationship('Product', backref='manufacturer', lazy=True)

    # returns a more information-rich, or official, string representation of an object
    # >>> company.query.all()
    # [1, ComanyName, CompanyCounntry] (Do not change this presentation
    # it will corrupt: the getCompanyId function in minibase.dabase.utils
    def __repr__(self):
        return f"{self.name}, {self.country_bill}, {self.id}"


class Company_types(db.Model):
    __tablename__ = 'company_types'
    id = db.Column(db.Integer, nullable=False, primary_key=True)
    name = db.Column(db.String(50), nullable=False)
    description = db.Column(db.String(300), nullable=False)
    companies = db.relationship('Companies', backref='type', lazy=True)

    # returns a more information-rich, or official, string representation of an object
    def __repr__(self):
        return f"{self.name}"


class Company_legal_entity(db.Model):
    id = db.Column(db.Integer, nullable=False, primary_key=True)
    name = db.Column(db.String(50), nullable=False)
    description = db.Column(db.String(300), nullable=False)
    companies = db.relationship('Company', backref='legal_entiy', lazy=True)

    # returns a more information-rich, or official, string representation of an object
    def __repr__(self):
        return f"{self.name}"


class Company_note(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    priority = db.Column(db.Integer, nullable=False, default='0')
    title = db.Column(db.String(100), nullable=False)
    content = db.Column(db.Text, nullable=False)
    date_posted = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)
    date_due = db.Column(db.DateTime, nullable=False, default=datetime.utcnow)

    company_id = db.Column(db.Integer, db.ForeignKey('company.id'), nullable=False)
    status_id = db.Column(db.Integer, db.ForeignKey('note_status.id'), nullable=False)

    # returns a more information-rich, or official, string representation of an object
    def __repr__(self):
        return f"{self.title}, {self.content}"