module.exports = (sequelize, DataTypes) => {
  const CustomerQuotationItem = sequelize.define('CustomerQuotationItem', {
    id: {
      type: DataTypes.INTEGER,
      primaryKey: true,
      autoIncrement: true
    },
    cq_id: {
      type: DataTypes.INTEGER,
      allowNull: false,
      references: {
        model: 'CustomerQuotation',
        key: 'id'
      }
    },
    item_number: {
      type: DataTypes.INTEGER,
      allowNull: false
    },
    material_id: {
      type: DataTypes.INTEGER,
      allowNull: false,
      references: {
        model: 'Material',
        key: 'id'
      }
    },
    description: {
      type: DataTypes.STRING(500),
      allowNull: true
    },
    quantity: {
      type: DataTypes.DECIMAL(15, 3),
      allowNull: false,
      defaultValue: 0
    },
    uom_id: {
      type: DataTypes.INTEGER,
      allowNull: false,
      references: {
        model: 'UOM',
        key: 'id'
      }
    },
    unit_price: {
      type: DataTypes.DECIMAL(18, 2),
      allowNull: false,
      defaultValue: 0
    },
    discount_percentage: {
      type: DataTypes.DECIMAL(5, 2),
      allowNull: false,
      defaultValue: 0
    },
    discount_amount: {
      type: DataTypes.DECIMAL(18, 2),
      allowNull: false,
      defaultValue: 0
    },
    net_amount: {
      type: DataTypes.DECIMAL(18, 2),
      allowNull: false,
      defaultValue: 0
    },
    tax_rate: {
      type: DataTypes.DECIMAL(5, 2),
      allowNull: false,
      defaultValue: 0
    },
    tax_amount: {
      type: DataTypes.DECIMAL(18, 2),
      allowNull: false,
      defaultValue: 0
    },
    cgst_rate: {
      type: DataTypes.DECIMAL(5, 2),
      allowNull: false,
      defaultValue: 0
    },
    cgst_amount: {
      type: DataTypes.DECIMAL(18, 2),
      allowNull: false,
      defaultValue: 0
    },
    sgst_rate: {
      type: DataTypes.DECIMAL(5, 2),
      allowNull: false,
      defaultValue: 0
    },
    sgst_amount: {
      type: DataTypes.DECIMAL(18, 2),
      allowNull: false,
      defaultValue: 0
    },
    igst_rate: {
      type: DataTypes.DECIMAL(5, 2),
      allowNull: false,
      defaultValue: 0
    },
    igst_amount: {
      type: DataTypes.DECIMAL(18, 2),
      allowNull: false,
      defaultValue: 0
    },
    total_amount: {
      type: DataTypes.DECIMAL(18, 2),
      allowNull: false,
      defaultValue: 0
    },
    hsn_code: {
      type: DataTypes.STRING(50),
      allowNull: true
    }
  }, {
    tableName: 'customer_quotation_item',
    indexes: [
      {
        fields: ['cq_id']
      },
      {
        fields: ['material_id']
      }
    ]
  });

  CustomerQuotationItem.associate = function(models) {
    CustomerQuotationItem.belongsTo(models.CustomerQuotation, { foreignKey: 'cq_id', as: 'customerQuotation' });
    CustomerQuotationItem.belongsTo(models.Material, { foreignKey: 'material_id', as: 'material' });
    CustomerQuotationItem.belongsTo(models.UOM, { foreignKey: 'uom_id', as: 'uom' });
  };

  return CustomerQuotationItem;
};

