from django.db import models
from django.db import models


class FixedAssetsInventory(models.Model):
    asset_id = models.CharField(max_length=255, unique=True, verbose_name='资产编号')
    asset_category = models.CharField(max_length=255, verbose_name='资产类别')
    brand = models.CharField(max_length=255, verbose_name='品牌')
    model = models.CharField(max_length=255, verbose_name='规格型号')
    unit = models.CharField(max_length=255, verbose_name='单位')
    quantity = models.IntegerField(verbose_name='数量')
    affiliated_entity = models.CharField(max_length=255, verbose_name='归属主体')
    location = models.CharField(max_length=255, verbose_name='存放地点')
    department = models.CharField(max_length=255, verbose_name='所属部门')
    user = models.CharField(max_length=255, verbose_name='使用人')
    purchase_date = models.DateField(verbose_name='购入日期')
    recorded_date = models.DateField(verbose_name='入账日期')
    original_value = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='资产原值')
    residual_value = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='残值')
    depreciation_method = models.CharField(max_length=255, verbose_name='折旧方法')
    depreciation_years = models.IntegerField(verbose_name='折旧年限')
    depreciation_months = models.IntegerField(verbose_name='折旧月数')
    book_value = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='账面价值')
    status = models.CharField(max_length=255, verbose_name='状态')

    class Meta:
        verbose_name = '固定资产清单'
        verbose_name_plural = '固定资产清单表'

    def __str__(self):
        return f"{self.asset_id} - {self.asset_category}"


class IntangibleAssetsInventory(models.Model):
    asset_id = models.CharField(max_length=255, unique=True, verbose_name='资产编号')
    asset_category = models.CharField(max_length=255, verbose_name='资产类别')
    brand = models.CharField(max_length=255, verbose_name='品牌')
    model = models.CharField(max_length=255, verbose_name='规格型号')
    unit = models.CharField(max_length=255, verbose_name='单位')
    quantity = models.IntegerField(verbose_name='数量')
    affiliated_entity = models.CharField(max_length=255, verbose_name='归属主体')
    department = models.CharField(max_length=255, verbose_name='所属部门')
    user = models.CharField(max_length=255, verbose_name='使用人')
    registration_date = models.DateField(verbose_name='登记日期')
    start_date = models.DateField(verbose_name='起始日期')
    expiration_date = models.DateField(verbose_name='到期日期')
    original_value = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='资产原值')
    book_value = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='账面价值')
    status = models.CharField(max_length=255, verbose_name='状态')

    class Meta:
        verbose_name = '无形资产清单'
        verbose_name_plural = '无形资产清单表'

    def __str__(self):
        return f"{self.asset_id} - {self.asset_category}"