package BookShop;

import java.util.Scanner;

/**
 * @version 1.0
 * @author: jiazhihao
 * @date: 2021-04-10 13:40
 */
public class shop {
    Scanner scanner = new Scanner(System.in);
    book bk = new book();

    public void initial() {
        bk.name[0] = "Java基礎(chǔ)教程";
        bk.count[0] = 0;
        bk.date[0] = "2015-7-1";
        bk.state[0] = 0;

        bk.name[1] = "數(shù)據(jù)庫(kù)技術(shù)";
        bk.count[1] = 0;
        bk.state[1] = 1;

        bk.name[2] = "人月神話";
        bk.state[2] = 1;
        bk.count[2] = 0;
    }
    public void kaishi() {
        boolean flag = true;
        do {
            System.out.println("歡 迎 使 用 圖 書(shū) 管 理 系 統(tǒng)");
            System.out.println("**************************************");
            System.out.println("1. 新 增 圖 書(shū)");
            System.out.println("2. 查 看 圖 書(shū)");
            System.out.println("3. 刪 除 圖 書(shū)");
            System.out.println("4. 借 出 圖 書(shū)");
            System.out.println("5. 歸 還 圖 書(shū)");
            System.out.println("6. 退 出");
            System.out.print("****************************************\n");
            System.out.print("請(qǐng)選擇： ");
            int choice = scanner.nextInt();
            switch (choice) {
                case 1:
                    System.out.println("--->新增圖書(shū)");

                    xinzeng();
                    break;
                case 2:
                    System.out.println("--->查看圖書(shū)");
                    chakan();
                    break;
                case 3:
                    System.out.println("--->刪除圖書(shū)");
                    delete();
                    break;
                case 4:
                    System.out.println("--->借出圖書(shū)");
                    sell();
                    break;
                case 5:
                    System.out.println("--->歸還圖書(shū)");
                    gaveme();
                    break;
                case 6:
                    flag = false;
                    System.out.println("--->您已退出");
                    break;
            }
        } while (flag == true);
    }
    //    歸還書(shū)籍
//    歸還時(shí)把state換成 1
    private void gaveme() {
        System.out.println("請(qǐng)你輸入你要還的書(shū)的名字");
        String name = scanner.next();

        for (int i = 0; i < bk.name.length; i++) {
            if (bk.name[i].equals(name) && bk.state[i] == 0) {
                bk.state[i] = 1;
                System.out.println("還書(shū)成功");
                break;
            } else if (bk.name[i] == null) {
                System.out.println("沒(méi)有找到匹配信息");
            }

        }

    }

    //借出圖書(shū)
    //借出之后在圖書(shū)的.之后的借出更改為已借出，借出次數(shù)加一，在輸入借出時(shí)間
  
    private void sell() {
        System.out.println("請(qǐng)輸入你要借的書(shū)本的名字");
        String name = scanner.next();
        for (int i = 0; i < bk.name.length; i++) {
            if (bk.name[i] == null) {
                System.out.println("沒(méi)有找到匹配信息");
                break;
            }else if (name.equals(bk.name[i]) && bk.state[i] == 1) {
                bk.state[i] = 0;
                System.out.println("請(qǐng)輸入借書(shū)的時(shí)間");
                bk.date[i] = scanner.next();
                System.out.println("借出《" + name + "》成功!");
                break;
            } else if (bk.name[i].equals(name) && bk.state[i] == 0) {
                System.out.println("不好意思，你要接的書(shū)已經(jīng)被別人接走了");
            }
        }
    }


    //刪除圖書(shū)
    //把他的下表跟最后一位空的下表更換位置就行
    private void delete() {
        boolean flag = true;
        System.out.println("請(qǐng)輸入要?jiǎng)h除的書(shū)的名字");
        String name = scanner.next();
        for (int i = 0; i < bk.name.length; i++) {
            if((bk.name[i].equalsIgnoreCase(name)&& bk.name[i] !=null)){
                int j = i;
                while (bk.name[j + 1] != null) {
                    bk.name[j] = bk.name[j + 1];
                    bk.state[j] = bk.state[j + 1];
                    bk.date[j] = bk.date[j + 1];
                    j++;
                }
                bk.name[j] = null;
                bk.date[j] = null;
                flag = true;
                break;
            } else{
                flag = false;

            }if( flag){
                System.out.println("刪除sb");
            }else{
                System.out.println("刪除成功");
            }



        }

    }

    //查看圖書(shū)
    private void chakan() {
        System.out.println("序號(hào)\t 狀態(tài)\t 名稱\t 借出日期\t");
        for (int i = 0; i < bk.name.length; i++) {
            if (bk.name[i] == null) {
                System.out.println("沒(méi)找到");
            } else if (bk.state[i] == 0) {
                System.out.println((i + 1) + "\t已借出\t" + "<<" + bk.name[i] + "》\t" + bk.date[i]);
//                break;
            } else if (bk.state[i] == 1) {
                System.out.println((i + 1) + "\t可 借\t" + "<<" + bk.name[i] + ">>\t"+bk.date[i]);
            }
        }

    }
    //新增圖書(shū)
    private void xinzeng() {
        System.out.println("請(qǐng)輸入要新增的圖書(shū)名字");
        String name = scanner.next();
        for (int i = 0; i < bk.name.length; i++) {
            if (bk.name[i] == null) {
                bk.name[i] = name;
                bk.state[i] = 1;
                System.out.println("新增《" + name + "》成功");
                break;
            }

        }
    }

}