//
// Created by zhang on 2024/12/28.
//
#include <string.h>
#include <ctype.h>
#include "./include/function.h"
#include "./include/curses.h"
#include "./include/ui.h"
#include <stdlib.h>


// 定义窗口宽度和高度
#define WIN_HEIGHT 15
#define WIN_WIDTH  40

struct bottom{
    int x,y;
    int width,height;
    char *test[30];
    int private;
};

void draw_bottom(WINDOW *win,struct bottom *bot){
    mvwprintw(win,bot->y,bot->x,"%s",bot->test);
}

struct bottom *creat_bottom(WINDOW *win,int x,int y,int width,int height,char *test[]) {
    struct bottom *bot=malloc(sizeof(struct bottom));
    bot->y=x;
    bot->x=y;
    bot->width=width;
    bot->height=height;
    strcpy(bot->test,test);
    //mvwprintw(win,x,y,"%s",test);
    return bot;
}

bool click_bottom(MEVENT event,struct bottom bottom,int sx,int sy){
    return event.x-sx>= bottom.x && event.x-sx < bottom.x + bottom.width && event.y-sy >= bottom.y && event.y-sy < bottom.y + bottom.height;
}

int Welcome_ui() {
    MEVENT event;
    int startx, starty;
    initscr();                // 初始化curses
    cbreak();                 // 禁用行缓冲
    noecho();                 // 不显示输入字符
    curs_set(0);              // 隐藏光标
    keypad(stdscr, TRUE);     // 启用键盘按键的特殊处理
    mousemask(ALL_MOUSE_EVENTS, NULL);  // 启用鼠标事件
    // 获取屏幕的尺寸
    // 计算按钮的显示位置
    int start_y = (LINES - WIN_HEIGHT) / 2;
    int start_x = (COLS - WIN_WIDTH) / 2;
    WINDOW *welcome_win = newwin(WIN_HEIGHT, WIN_WIDTH, start_y, start_x);
    keypad(welcome_win,TRUE);
    wborder(welcome_win, '|', '|', '-','-','+', '+', '+', '+');
    // 标题
    mvwprintw(welcome_win, 1, 1, "Welcome to math calculate system!");
    struct bottom *login= creat_bottom(welcome_win,4,1,5,1,"Login");
    draw_bottom(welcome_win,login);
    struct bottom *signin= creat_bottom(welcome_win,8,1,6,1,"Signin");
    draw_bottom(welcome_win,signin);
    struct bottom *exit= creat_bottom(welcome_win,12,1,4,1,"Exit");
    draw_bottom(welcome_win,exit);
    wrefresh(welcome_win);
    while(1){
        int rc=wgetch(welcome_win);
        if(rc==KEY_MOUSE){
            if(nc_getmouse(&event)==OK){
                //mvwprintw(welcome_win, 3, 1, "Mouse at (%d, %d), button %d", event.x-start_x, event.y-start_y, event.bstate);
                if(click_bottom(event,*login,start_x,start_y)){
                    free(login);free(signin);free(exit);endwin();
                    return 2;
                }
                if(click_bottom(event,*signin,start_x,start_y)){
                    free(login);free(signin);free(exit);endwin();
                    return 3;
                }
                if(click_bottom(event,*exit,start_x,start_y)){
                    free(login);free(signin);free(exit);endwin();
                    return 0;
                }
            }
        }
    }
}

void draw_login_window(WINDOW *win,struct bottom *login,struct bottom *signin,struct bottom *user,struct bottom *psword,struct bottom *exit) {
    // 清空窗口并绘制边框
    wclear(win);
    box(win, 0, 0);

    // 标题
    mvwprintw(win, 1, (WIN_WIDTH - 10) / 2, "Login Menu");

    // 用户名输入框
    mvwprintw(win, 3, 4, "Username:");

    // 密码输入框
    mvwprintw(win, 6, 4, "Password:");
    //绘制剩余内容
    draw_bottom(win,login);
    draw_bottom(win,signin);
    draw_bottom(win,exit);
    draw_bottom(win,user);
    draw_bottom(win,psword);
    wrefresh(win); // 刷新窗口
}

void get_input(WINDOW *win, int y, int x, char *buffer, int max_len,struct bottom *bot,int sx,int sy) {
    MEVENT event;
    int ch, pos = 0;
    char *test=bot->test;
    while(pos<max_len&&buffer[pos]!='\0')pos++;
    while (1) {
        ch= wgetch(win);
        if (ch == KEY_BACKSPACE || ch == 8) { // 处理退格键
            if (pos > 0) {
                pos--;
                buffer[pos]='\0';
                test[pos+1]='_';
                draw_bottom(win,bot);
                wrefresh(win);
            }
        } else if (pos < max_len - 1 && ch >= 32 && ch <= 126) { // 可打印字符
            buffer[pos++] = ch;
            if(bot->private==0)test[pos]=ch;
            else test[pos]='*';
            draw_bottom(win,bot);
            wrefresh(win);
        }
        else if(ch== KEY_MOUSE){
            if(nc_getmouse(&event)==OK){
                if(!click_bottom(event,*bot,sx,sy)){
                    return;
                }
            }
        }
    }
}
int Login_ui(){
    MEVENT event;
    int start_y = (LINES - WIN_HEIGHT) / 2;
    int start_x = (COLS - WIN_WIDTH) / 2;
    WINDOW *login_win = newwin(WIN_HEIGHT, WIN_WIDTH, start_y, start_x);
    keypad(login_win,TRUE);
    char *username[15];      //储存用户名
    memset(username, 0, 15); // 清空缓冲区
    char *password[15];      //储存密码
    memset(password, 0, 15); // 清空缓冲区
    struct bottom *login= creat_bottom(login_win,10,4,5,1,"Login");
    struct bottom *signin= creat_bottom(login_win,10,14,5,1,"Signin");
    struct bottom *exit= creat_bottom(login_win,10,25,5,1,"Exit");
    struct bottom *users= creat_bottom(login_win,4,4,16,1,"[______________]");
    struct bottom *psword= creat_bottom(login_win,7,4,16,1,"[______________]");
    psword->private=1;users->private=0;
    while(1){
        draw_login_window(login_win,login,signin,users,psword,exit);
        int rc=wgetch(login_win);
        if(rc==KEY_MOUSE){
            if(nc_getmouse(&event)==OK){
                //mvwprintw(welcome_win, 3, 1, "Mouse at (%d, %d), button %d", event.x-start_x, event.y-start_y, event.bstate);
                if(click_bottom(event,*login,start_x,start_y)){
                    free(login);free(signin);free(exit);free(users);free(psword);endwin();
                }
                if(click_bottom(event,*signin,start_x,start_y)){
                    free(login);free(signin);free(exit);free(users);free(psword);endwin();
                    return 3;
                }
                if(click_bottom(event,*exit,start_x,start_y)){
                    free(login);free(signin);free(exit);free(users);free(psword);endwin();
                    return 1;
                }
                if(click_bottom(event,*users,start_x,start_y)){
                    get_input(login_win, 4, 6, username, 15,users,start_x,start_y);
                    continue;
                }
                if(click_bottom(event,*psword,start_x,start_y)){
                    get_input(login_win, 7, 6, password, 15,psword,start_x,start_y);
                    continue;
                }
            }
        }
    }
}

int Signin_ui(){

}








//void draw_button(WINDOW *win, int x, int y, const char *label, bool is_active) {
//    if (is_active) {
//        wattron(win, A_REVERSE);  // 激活按钮时反显
//    }
//    mvwprintw(win, y, x + (BUTTON_WIDTH - strlen(label)) / 2, "%s", label);
//    if (is_active) {
//        wattroff(win, A_REVERSE); // 反显结束
//    }
//    box(win, 0, 0);  // 画按钮的边框
//    wrefresh(win);
//}

//void draw_login_window() {
//    // 绘制登录窗口
//    clear();
//    box(stdscr, 0, 0);
//
//    // 标题
//    mvprintw(2, 20, "Login Window");
//
//    // 用户名
//    mvprintw(USERNAME_Y, USERNAME_X - 10, "Username: ");
//    mvprintw(PASSWORD_Y, PASSWORD_X - 10, "Password: ");
//
//    // 输入框
//    mvprintw(USERNAME_Y, USERNAME_X, "____________________________");
//    mvprintw(PASSWORD_Y, PASSWORD_X, "____________________________");
//
//    // 按钮
//    mvprintw(LOGIN_BTN_Y, LOGIN_BTN_X, "[ Login ]");
//    mvprintw(REGISTER_BTN_Y, REGISTER_BTN_X, "[ Register ]");
//
//    refresh();
//}

//void handle_mouse_click(MEVENT event) {
//    // 处理鼠标点击事件
//    if (event.bstate & BUTTON1_CLICKED) {
//        // 判断是否点击了登录按钮
//        if (event.x >= LOGIN_BTN_X && event.x <= LOGIN_BTN_X + 9 &&
//            event.y == LOGIN_BTN_Y) {
//            printw("\nLogin button clicked!\n");
//            refresh();
//        }
//            // 判断是否点击了注册按钮
//        else if (event.x >= REGISTER_BTN_X && event.x <= REGISTER_BTN_X + 11 &&
//                 event.y == REGISTER_BTN_Y) {
//            printw("\nRegister button clicked!\n");
//            refresh();
//        }
//    }
//}

void clear_input_area(int x, int y, int len) {
    // 清除输入框区域
    for (int i = 0; i < len; i++) {
        mvaddch(y, x + i, ' ');
    }
}

//void Login_ui() {
//    initscr();                // 初始化屏幕
//    cbreak();                 // 禁用行缓冲
//    noecho();                 // 不显示输入的字符
//    keypad(stdscr, TRUE);     // 启用键盘功能（例如箭头键）
//    mousemask(ALL_MOUSE_EVENTS, NULL); // 启用所有鼠标事件
//    curs_set(0);              // 隐藏光标
//
//    draw_login_window();      // 绘制登录窗口
//
//    char username[MAX_INPUT_LEN + 1] = "";
//    char password[MAX_INPUT_LEN + 1] = "";
//    int ch;
//    MEVENT event;
//
//    while (1) {
//        ch = getch();  // 获取输入
//
//        if (ch == KEY_MOUSE) {  // 检查是否是鼠标事件
//            if (nc_getmouse(&event) == OK) {
//                handle_mouse_click(event);  // 处理鼠标点击事件
//            }
//        }
//
//        // 处理键盘输入（用户输入用户名和密码）
//        if (ch == 10) {  // 回车键
//            printw("\n登录成功！\n");
//            break;
//        }
//
//        // 如果是在用户名或密码框中输入
//        if (ch == KEY_BACKSPACE || ch == 127) {  // 退格键
//            // 删除输入框中的最后一个字符
//            if (strlen(username) > 0) {
//                username[strlen(username) - 1] = '\0';
//                clear_input_area(USERNAME_X, USERNAME_Y, MAX_INPUT_LEN);
//                mvprintw(USERNAME_Y, USERNAME_X, "%s", username);
//            }
//        } else if (isprint(ch)) {  // 只接受可打印的字符
//            if (strlen(username) < MAX_INPUT_LEN) {
//                username[strlen(username)] = ch;
//                username[strlen(username) + 1] = '\0';
//                mvprintw(USERNAME_Y, USERNAME_X, "%s", username);
//            }
//        }
//
//        refresh();
//    }
//
//    endwin();  // 结束 ncurses 模式
//    return;
//}
// 用于绘制按钮的函数