from django.db import models
from django.db.models import Model, CharField, EmailField, \
    DateTimeField, DecimalField, ForeignKey

class Address(Model):
    address =  CharField(max_length=200)
    zip_code = CharField(max_length=10)
    city = CharField(max_length=200)
    country = CharField(max_length=200)

class Person(Model):
    name = CharField(max_length=50)
    surname = CharField(max_length=50)
    address = Address()
    nationality = CharField(max_length=200)
    email = EmailField(max_length=254)
    phone = CharField(max_length=20)

    # Foreign keys
    address = ForeignKey(Address)

class Company(Model):
    name = CharField(max_length=50)
    address = CharField(max_length=254)
    nationality = CharField(max_length=50)
    email = EmailField(max_length=200)
    phone = CharField(max_length=20)

    # Foreign keys
    address = ForeignKey(Address)


class Insurance(Company):
    pass

class Boat(Model):
    name = CharField(max_length=50)
    registration_num = CharField(max_length=20)
    length = DecimalField()
    beam = DecimalField()
    water_draught = DecimalField()
    tonnage = DecimalField()
    water_tank = DecimalField()
    model = CharField(max_length=50)
    heating = CharField(max_length=50)
    passenger_capacity = IntegerField()
    picture = ImageField(upload_to=None, height_field=None, width_field=None, max_length=100)

    # Foreign keys
    boat_insurance = ForeignKey(BoatInsurance)
    company = ForeignKey(Company)

class BoatInsurance(Model)
    contract = IntegerField()
    date = DateTimeField()

    # Foreign keys
    insurance = ForeignKey(Insurance)
    boat = ForeignKey(Boat)


class Port(Model):
    name = CharField(max_length=50)

    # Foreign keys
    address = ForeignKey(Address)
    company = ForeignKey(Company)

class Dock(Model):
    num = CharField(max_length=10)
    length = DecimalField()
    width = DecimalField()
    depth = DecimalField()

    # Foreign keys
    port = ForeignKey(Port)

class Plug(Model):
    num = CharField(max_length=10)
    amperage = DecimalField()
    voltage = DecimalField()

    # Foreign keys
    port = ForeignKey(Port)


class Tap(Model):
    num = CharField(max_length=10)

    # Foreign keys
    port = ForeignKey(Port)

class Stay(Model):
    arrival = DateTimeField()
    departure = DateTimeField('date published')
    coming_from = CharField(max_length=200)
    going_to = CharField(max_length=200)

    # Foreign keys
    boat = ForeignKey(Boat)
    bill = ForeignKey(Bill)

class PaymentType(Model):
    name = CharField(max_length=20)

class Payment(Model):
    num = CharField(max_length=40)
    date = DateTimeField()
    amount = DecimalField()

    # Foreign keys
    pay_type = ForeignKey(PaymentType)

class Service(Model):
    service_type = CharField(max_length=50)

class BillLine(Model):
    quantity = DecimalField()

    # Foreign keys
    service = ForeignKey(Service)
    bill = ForeignKey(Bill)

class Bill(Model):
    num = IntegerField()
    date = DateTimeField()
    total = DecimalField()

class BillPayment(Model):
    amount = DecimalField()

    # Foreign keys
    bill = ForeignKey(Bill)
    payment = ForeignKey(Payment)


class Mooring(Model):
    date = DateTimeField()

    # Foreign keys
    stay = ForeignKey(Stay)
    dock = ForeignKey(Dock)
    tap = ForeignKey(Tap)
    plug = ForeignKey(Plug)