#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<conio.h>
#define BUFFERSIZE 1024
#define MAXACCOUNT 1000
#define ADMINISTRATIOR 123456

int main(void)
{
    FILE *fp;
    int accountnum;
    int i;
    float withdraw, store;

    do
    {
        system("cls"); //清屏
        puts("********************************************");
        puts("可选操作: ");
        puts("1 : 创建新账户 ");
        puts("2 : 管理员权限 ");
        puts("3 : 查询账户 ");
        puts("4 : 注销账户 ");
        puts("5 : 存取款 ");
        puts("6 : 结束使用 ");
        puts("********************************************");
        printf("请选择功能:");
        scanf("%d",&i);
        system("cls"); //清屏
        if (i < 7 && i > 0)
        {
            switch(i)
            {
                case 1:
                if(!(fp = fopen("account.txt","a+")))
                {
                    printf("打开账户文件失败！\n");
                    exit(0);
                }
                printf("请您输入初始账户：\n");
                scanf("%d", &accountnum);
                while (search_account(fp,accountnum,0) && accountnum != 0)
                {
                    printf("该账户号已被占用！\n您可以继续输入账户号或连续输入两次0结束创建。\n");
                    scanf("%d\n", &accountnum);
                }
                if(accountnum != 0)
                    insert_account(fp, accountnum);
                else
                        printf("创建失败！\n");
                printf("点击回车返回主菜单!\n感谢您的使用!");
                getch();
                fclose(fp);
                break;

                case 2:
                if(!(fp = fopen("account.txt","r")))
                {
                    printf("该系统暂无用户信息！\n");
                    exit(0);
                }
                printf("请输入管理员密码:\n");
				long int n;
				scanf("%ld", &n);
				while (n != ADMINISTRATIOR)
					{
						printf("请输入正确的密码或输入0返回上一层:\n");
						scanf("%ld", &n);
						if (n == 0)
							break;
					}
				if (n != 0)
				{

	                get_account(fp);
	                list_account(fp);
	                fclose(fp);
	                printf("点击回车结束本次操作!\n感谢您的使用!\n");
	                getch();
                }
                break;

                case 3:
                printf("请输入账号:\n");
                scanf("%d",&accountnum);
                if(!(fp = fopen("account.txt","r")))
                {
                    printf("打开账户文件失败！\n");
                    exit(0);
                }
                get_account(fp);
                if(!search_account(fp,accountnum,1))
                    printf("此账户不存在：%d\n",accountnum);
                fclose(fp);
                printf("点击回车结束本次操作!\n感谢您的使用!");
                getch();
                break;

                case 4:
                printf("请输入账号:\n");
                scanf("%d",&accountnum);
                if(!(fp = fopen("account.txt","r")))
                {
                    printf("打开账户文件失败！\n");
                    exit(0);
                }
                get_account(fp);
                fclose(fp);
                if(!(fp = fopen("account.txt","w+")))
                {
                    printf("打开账户文件失败！\n");
                    exit(0);
                }
                del_account(fp,accountnum);
                fclose(fp);
                printf("点击回车结束本次操作!\n感谢您的使用!");
                getch();
                break;

                case 5:
                printf("请输入账号\n");
                scanf("%d",&accountnum);
                if(!(fp = fopen("account.txt","r")))
                {
                    printf("打开账户文件失败！\n");
                    exit(0);
                }
                get_account(fp);
                fclose(fp);
                if(!(fp = fopen("account.txt","w+")))
                {
                    printf("打开账户文件失败！\n");
                    exit(0);
                }
                if(search_account(fp,accountnum,0))
					       {
					          int i = search_account(fp,accountnum, 0) - 1;
					       		int key;
					       		do{
					       			printf("请输入正确的密码或输入0退出该功能项：");
					       			scanf("%d", &key);
									system("cls");
									if(search_key(fp, key, i))
                                        break;
								   }while ( key != 0);
								while (key != 0)
									{
										system("cls");
										printf("********************************************\n");
										printf("请输入开头的数字选择您要进行的操作\n");
										printf("0 :退出选择\n");
										printf("1 :取款\n");
										printf("2 :存款\n");
										printf("********************************************\n");
										scanf("%d", &key);
										system("cls");
										if (key >= 0&&key <=2)
											{
												switch(key)
												{
													case 1:
													printf("请您输入您要取出的金额：");
													scanf("%f", &withdraw);
													if(accountcollection[i].balance > withdraw)
                                                    {
                                                        accountcollection[i].balance -= withdraw;
                                                        printf("\n您现在的余额为 %.2f￥\n", accountcollection[i].balance);
                                                    }
                                                    else
                                                    printf("您的余额不足\n");
                                                    printf("点击回车继续操作\n");
													getch();
													break;


													case 2:
													printf("请您输入您要存入的金额：");
													scanf("%f", &store);
													accountcollection[i].balance += store;
													printf("\n您现在的余额为 %.2f￥\n", accountcollection[i].balance);
													printf("点击回车继续操作\n");
													getch();
													break;


													default :
													printf("感谢使用\n");
													break;
												}
											}
											else
											{
												printf("无效指令，请输入1 —2中的任意一个整数.\n");
												printf("点击回车继续操作\n");
												getch();
											}
										}
								   }
					else
						printf("账户不存在\n");
                store_account(fp);
				fclose(fp);
				printf("点击回车继续操作\n");
                getch();
                break;


                default:
				printf("感谢您的使用！\n");
                break;
            }
        }
            else
            {
				printf("无效指令，请输入1 —6中的任意一个整数.\n");
				printf("点击回车继续操作\n");
				getch();
            }

}while(i != 6);

    return 0;
}