from django.db import models
from django.utils import timezone
from django.core.validators import MinValueValidator, MaxValueValidator  



class Client(models.Model):
    name = models.CharField(max_length=100)
    address = models.TextField()

    def __str__(self):
        return self.name

class ExcelEntry(models.Model):
    client = models.ForeignKey(Client, on_delete=models.CASCADE)
    date = models.DateField(default=timezone.now)
    pressure = models.DecimalField(
        max_digits=10,
        decimal_places=2,
        validators=[MinValueValidator(0)],
        default=0.00
    )
    purity = models.DecimalField(
        max_digits=5,
        decimal_places=2,
        validators=[MinValueValidator(0), MaxValueValidator(100)],
        default=0.00
    )
    notes = models.TextField(blank=True, null=True)
    date_joined = models.DateField(auto_now_add=True)

    def __str__(self):
        return f"{self.client.name} - {self.date}"

class SecondTableEntry(models.Model):
    client = models.ForeignKey(Client, on_delete=models.CASCADE)
    date = models.DateField(default=timezone.now)  # Added default value
    is_warm = models.BooleanField(default=False)
    lhe_delivery = models.CharField(max_length=100, blank=True, null=True)
    lhe_output = models.DecimalField(
    max_digits=10,
    decimal_places=2,
    validators=[MinValueValidator(0)],
    blank=True,
    null=True
    )
    notes = models.TextField(blank=True, null=True)
    date_joined = models.DateField(auto_now_add=True)

    def __str__(self):
        return f"{self.client.name} - {self.date}"