/**
 * Copyright (C) 2013 Premium Minds.
 *
 * This file is part of billy spain (ES Pack).
 *
 * billy spain (ES Pack) is free software: you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option) any
 * later version.
 *
 * billy spain (ES Pack) is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with billy spain (ES Pack). If not, see <http://www.gnu.org/licenses/>.
 */
package com.premiumminds.billy.spain.services.builders.impl;

import java.math.BigDecimal;
import java.util.Date;

import javax.validation.ValidationException;

import org.apache.commons.lang3.time.DateUtils;

import com.premiumminds.billy.core.exceptions.BillyValidationException;
import com.premiumminds.billy.core.persistence.entities.GenericInvoiceEntryEntity;
import com.premiumminds.billy.core.services.entities.Tax;
import com.premiumminds.billy.core.util.BillyValidator;
import com.premiumminds.billy.core.util.NotOnUpdate;
import com.premiumminds.billy.spain.persistence.dao.DAOESGenericInvoice;
import com.premiumminds.billy.spain.persistence.dao.DAOESGenericInvoiceEntry;
import com.premiumminds.billy.spain.persistence.dao.DAOESProduct;
import com.premiumminds.billy.spain.persistence.dao.DAOESRegionContext;
import com.premiumminds.billy.spain.persistence.dao.DAOESTax;
import com.premiumminds.billy.spain.persistence.entities.ESGenericInvoiceEntryEntity;
import com.premiumminds.billy.spain.services.builders.ESManualInvoiceEntryBuilder;
import com.premiumminds.billy.spain.services.entities.ESGenericInvoiceEntry;

public class ESManualEntryBuilderImpl<TBuilder extends ESManualEntryBuilderImpl<TBuilder, TEntry>, TEntry extends ESGenericInvoiceEntry>
extends ESGenericInvoiceEntryBuilderImpl<TBuilder, TEntry> implements
ESManualInvoiceEntryBuilder<TBuilder, TEntry> {

	public ESManualEntryBuilderImpl(DAOESGenericInvoiceEntry daoESEntry,
			DAOESGenericInvoice daoESInvoice,
			DAOESTax daoESTax,
			DAOESProduct daoESProduct,
			DAOESRegionContext daoESRegionContext) {
		super(daoESEntry, daoESInvoice, daoESTax, daoESProduct,
				daoESRegionContext);
	}
	
	@Override
	protected void validateInstance() throws BillyValidationException {
		this.validateValues();
		
		ESGenericInvoiceEntryEntity i = this.getTypeInstance();
		BillyValidator.mandatory(i.getQuantity(),
				ESGenericInvoiceEntryBuilderImpl.LOCALIZER
						.getString("field.quantity"));
		BillyValidator.mandatory(i.getUnitOfMeasure(),
				ESGenericInvoiceEntryBuilderImpl.LOCALIZER
						.getString("field.unit"));
		BillyValidator.mandatory(i.getProduct(),
				ESGenericInvoiceEntryBuilderImpl.LOCALIZER
						.getString("field.product"));
		BillyValidator.notEmpty(i.getTaxes(),
				ESGenericInvoiceEntryBuilderImpl.LOCALIZER
						.getString("field.tax"));
		BillyValidator.mandatory(i.getTaxAmount(),
				ESGenericInvoiceEntryBuilderImpl.LOCALIZER
						.getString("field.tax"));
		BillyValidator.mandatory(i.getTaxPointDate(),
				ESGenericInvoiceEntryBuilderImpl.LOCALIZER
						.getString("field.tax_point_date"));
	}
	
	@Override
	protected void validateValues() throws ValidationException {
		GenericInvoiceEntryEntity e = this.getTypeInstance();

		for (Tax t : e.getProduct().getTaxes()) {
			if (this.daoContext.isSubContext(t.getContext(), this.context)) {
				Date taxDate = e.getTaxPointDate() == null ? new Date() : e.getTaxPointDate();
				if (DateUtils.isSameDay(t.getValidTo(), taxDate)
						|| t.getValidTo().after(taxDate)) {
					e.getTaxes().add(t);
				}
			}
		}
	}
	
	@Override
	@NotOnUpdate
	public TBuilder setUnitTaxAmount(BigDecimal taxAmount){
		this.getTypeInstance().setTaxAmount(taxAmount);
		return this.getBuilder();
	}
	
	@Override
	@NotOnUpdate
	public TBuilder setUnitAmount(AmountType type, BigDecimal amount) {
		BillyValidator.notNull(type, ESGenericInvoiceEntryBuilderImpl.LOCALIZER
				.getString("field.unit_amount_type"));
		BillyValidator.notNull(amount,
				ESGenericInvoiceEntryBuilderImpl.LOCALIZER
						.getString("field.unit_gross_amount"));

		switch (type) {
		case WITH_TAX:
			this.getTypeInstance().setUnitAmountWithTax(amount);
			break;
		case WITHOUT_TAX:
			this.getTypeInstance().setUnitAmountWithoutTax(amount);
			break;
		}
		return this.getBuilder();
	}

	@Override
	@NotOnUpdate
	public TBuilder setAmount(AmountType type, BigDecimal amount) {
		BillyValidator.notNull(type, ESGenericInvoiceEntryBuilderImpl.LOCALIZER
				.getString("field.amount_type"));
		BillyValidator.notNull(amount,
				ESGenericInvoiceEntryBuilderImpl.LOCALIZER
						.getString("field.gross_amount"));

		switch (type) {
		case WITH_TAX:
			this.getTypeInstance().setAmountWithTax(amount);
			break;
		case WITHOUT_TAX:
			this.getTypeInstance().setAmountWithoutTax(amount);
			break;
		}
		return this.getBuilder();
	}

	@Override
	@NotOnUpdate
	public TBuilder setTaxAmount(BigDecimal taxAmount) {
		this.getTypeInstance().setTaxAmount(taxAmount);
		return this.getBuilder();
	}
}