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/**
复制代码
 * 报价计算器加档次逻辑：经济800/舒适1200/豪华1800元每㎡，用if求出单价和总价
 * <p>
 * 注意：
 * 1、main方法是static，只能调用static属性
 * 2、if...else语句
 * 3、Scanner的使用
 * 4、边界判断
 * 5、while循环及嵌套
 * 6、final常量
 *
 */

import java.util.Scanner;

public class Day9RenovationQuoteCalculator {
    public static final double LEVEL_PRICE_ECONOMY = 800;
    public static final double LEVEL_PRICE_COMFORT = 1200;
    public static final double LEVEL_PRICE_LUXURY = 1800;

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        while (true) {
            System.out.println("----------------装修单价和总价计算----------------");
            System.out.print("请输入房屋的面积（m²）【0-退出】：");
            double houseArea = in.nextDouble();
            if (houseArea == 0) {
                break;
            }
            if (houseArea < 0) {
                System.out.println("不能输入负数！");
                continue;
            } else {
                while (true) {
                    System.out.print("请选择装修档次(1经济/2舒适/3豪华)的数字【0-返回上一步】：");
                    int renovationLevel = in.nextInt();

                    if (renovationLevel == 0) {
                        break;
                    }

                    if (renovationLevel > 3 || renovationLevel < 0) {
                        System.out.println("只能输入( 1 | 2 | 3 )【0-返回上一步】！");
                        continue;
                    }

                    double renovationUnitPrice = switch (renovationLevel) {
                        case 1 -> LEVEL_PRICE_ECONOMY;
                        case 2 -> LEVEL_PRICE_COMFORT;
                        case 3 -> LEVEL_PRICE_LUXURY;
                        default -> 0.0;
                    };

                    double renovationTotalPrice = houseArea * renovationUnitPrice;
                    System.out.println("------------------------------------------------");
                    System.out.printf("您的装修单价是：%.2f 元/m²，装修总价是： %,.2f 元 %n%n%n", renovationUnitPrice, renovationTotalPrice);
                    break;
                }
            }
        }
    }
}