from django.db import models
from django.utils import timezone

class Service(models.Model):
    STATUS_CHOICES = (
        ('operational', '正常运行'),
        ('degraded', '性能下降'),
        ('outage', '服务中断'),
    )
    
    name = models.CharField(max_length=100, verbose_name='服务名称')
    status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='operational', verbose_name='服务状态')
    description = models.TextField(verbose_name='服务描述')
    ip_address = models.GenericIPAddressField(verbose_name='IP地址')
    port = models.PositiveIntegerField(verbose_name='端口号')
    reliability = models.DecimalField(max_digits=5, decimal_places=2, default=99.00, verbose_name='可靠率(%)')
    last_updated = models.DateTimeField(default=timezone.now, verbose_name='最后更新时间')
    
    def __str__(self):
        return self.name
    
    class Meta:
        verbose_name = '服务状态'
        verbose_name_plural = '服务状态'