package policy.rule.action;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;

import foundation.dao.DataWriter;
import policy.OrderEvent;
import policy.rule.CheckLevel;
import policy.rule.CheckResult;
import policy.rule.OrderCalculator;
import policy.rule.RuleAction;

public class AmtQtyDiscountSameTimeCheck extends RuleAction {

	public static String remark = "金额折扣和数量折扣不能同时使用 ";
	
	public AmtQtyDiscountSameTimeCheck() {
		super();
	}

	@Override
	public void createBoard(OrderCalculator calculator, CheckResult result) {
		int cnt = 0;
		
		//1. 折扣池
		BigDecimal rebateAmt = calculator.getRebateAmt();
		
		if (rebateAmt.compareTo(BigDecimal.ZERO) > 0) {
			result.writeOneRemark("折扣池金额：" + formatMoney(rebateAmt));
			cnt++;
		}
		
		//2. 买赠池
		BigDecimal rebateQty = calculator.getRebateQty();
		if (rebateQty.compareTo(BigDecimal.ZERO) > 0) {
			result.writeOneRemark("买赠池数量：" + rebateQty.toString());
			cnt++;
		}
		
		//3. 即时价格折扣
		BigDecimal onsiteAmt = calculator.getOnsitePriceAmt();
		if (onsiteAmt.compareTo(BigDecimal.ZERO) > 0) {
			result.writeOneRemark("即时价格折扣：" + formatMoney(onsiteAmt));
			cnt++;
		}
		
		//4. 即时买赠
		BigDecimal onsiteQty = calculator.getOnsiteQtyAmt();
		if (onsiteQty.compareTo(BigDecimal.ZERO) > 0) {
			result.writeOneRemark("即时买赠数量：" + onsiteQty.toString());
			cnt++;
		}
		
		//5. 计算结果
		boolean success = cnt <= 1;
		
		result.setSuccess(success);
		
		if (success) {
			result.clearRemarks();
		}
	}

	@Override
	public boolean check(OrderCalculator calculator, OrderEvent event, DataWriter dataWriter) {
		List<String> remarks = new ArrayList<String>();
		
		//1. 折扣池
		BigDecimal rebateAmt = calculator.getRebateAmt();
		
		if (rebateAmt.compareTo(BigDecimal.ZERO) > 0) {
			remarks.add("折扣池金额：" + formatMoney(rebateAmt));
		}
		
		//2. 买赠池
		BigDecimal rebateQty = calculator.getRebateQty();
		if (rebateQty.compareTo(BigDecimal.ZERO) > 0) {
			remarks.add("买赠池数量：" + rebateQty.toString());
		}
		
		//3. 即时价格折扣
		BigDecimal onsiteAmt = calculator.getOnsitePriceAmt();
		if (onsiteAmt.compareTo(BigDecimal.ZERO) > 0) {
			remarks.add("即时价格折扣：" + formatMoney(onsiteAmt));
		}
		
		//4. 即时买赠
		BigDecimal onsiteQty = calculator.getOnsiteQtyAmt();
		if (onsiteQty.compareTo(BigDecimal.ZERO) > 0) {
			remarks.add("即时买赠数量：" + onsiteQty.toString());
		}
		
		//5. 计算结果
		boolean success = remarks.size() <= 1;
		
		if (!success) {
			dataWriter.reportOneError("AmtQtyDiscountSameTimeCheck", "订单检查不通过：" + meta.getTitle());
			
			for (String remark: remarks) {
				dataWriter.reportOneError("AmtQtyDiscountSameTimeCheck", "     " + remark);
			}
		}
		
		if(CheckLevel.Info.equals(meta.getLevel())) {
			success = true;
		}
		
		return success;
	}
}