package policy.rule;

import java.math.BigDecimal;
import java.text.DecimalFormat;

import foundation.dao.DataWriter;
import foundation.json.IJSONProvider;
import foundation.json.IJSONWriter;
import policy.OrderEvent;

public abstract class RuleAction implements IJSONProvider{

	protected RuleMeta meta;

	
	public RuleAction() {
		
	}

	public void setMeta(RuleMeta meta) {
		this.meta = meta;
	}

	public RuleMeta getMeta() {
		return meta;
	}

	public abstract void createBoard(OrderCalculator calculator, CheckResult result);

	public abstract boolean check(OrderCalculator calculator, OrderEvent event, DataWriter dataWriter);
	
	public static String formatRate(BigDecimal value) {
		if (value == null) {
			return "0%";
		}
		
		value = value.multiply(BigDecimal.valueOf(100));
		DecimalFormat decimalFormat = new DecimalFormat("00.00");
		String result = decimalFormat.format(value);
		return result + "%";
	}
	
	public static String formatMoney(BigDecimal value) {
		if (value == null) {
			return "￥0.00";
		}
		
		DecimalFormat decimalFormat = new DecimalFormat("0.00");
		String result = decimalFormat.format(value);
		return "￥" + result;
	}
	
	public static void main(String[] args) {
		BigDecimal value = BigDecimal.valueOf(1234.56789);
		System.out.println(formatMoney(value));
	}

	public void writeJSON(IJSONWriter writer) {
		writer.beginObject();
		
		writer.write("id", meta.getId());
		writer.write("name", meta.getName());
		writer.write("title", meta.getTitle());
		writer.write("value", meta.getValue());
		writer.write("unit", meta.getUnit());
		writer.write("className", meta.getClassName());
		writer.write("level", meta.getLevel().name());
		
		writer.endObject();
		
	}
}