fix SEGFAULT when nullptr

.gitignore

@@ -4,3 +4,4 @@ compile_commands.json
 core*
 build
 test-data
+log

Makefile

@@ -1,8 +1,7 @@
 # Compiler and flags
 CPPC = g++
-CPPC_FLAGS = -std=c++23 -s -O3 -lncurses -lcurl -lmenu -lpanel -Wall -Wextra 
+CPPC_FLAGS = -std=c++23 -s -O3 -lncursesw -lcurl -lmenu -lpanel -Wall -Wextra -Wno-write-strings
-# Debug flags:
+DEBUG_FLAGS = -ggdb -std=c++23 -lncursesw -lcurl -lmenu -lpanel -Wall -Wextra -Wno-write-strings
-# CPPC_FLAGS = -ggdb -std=c++23 -lncurses -lcurl -lmenu -lpanel -Wall -Wextra
 
 
 SRC_PATH := src
@@ -11,16 +10,18 @@ BIN_PATH := build/bin
 
 
 SRC_FILES := $(shell find $(SRC_PATH) -name '*.cpp')
-# Generate corresponding object file paths by replacing src/ with build/obj/
 OBJ_FILES := $(patsubst $(SRC_PATH)/%.cpp,$(OBJ_PATH)/%.o,$(SRC_FILES))
 
 
 all: make-build-dir $(BIN_PATH)/bakatui
 
 
+debug: CPPC_FLAGS = $(DEBUG_FLAGS)
+debug: make-build-dir $(BIN_PATH)/bakatui
+
+
 make-build-dir:
 	mkdir -p $(OBJ_PATH)
-	mkdir -p $(OBJ_PATH)/marks
 	mkdir -p $(BIN_PATH)
 
 
@@ -32,7 +33,10 @@ $(OBJ_PATH)/%.o: $(SRC_PATH)/%.cpp
 	$(CPPC) $(CPPC_FLAGS) -c $< -o $@
 
 
+install:
+	@install -vpm 755 -o root -g root $(BIN_PATH)/bakatui /usr/bin/
+
 clean:
 	rm -fr build
 
-.PHONY: all clean make-build-dir
+.PHONY: all clean install debug

README.md

@@ -3,3 +3,12 @@
 
 > ### Dependencies:
 > [nlohmann-json](https://github.com/nlohmann/json)  
+> ncurses  
+
+> [!IMPORTANT]  
+> Only folowing works:
+> - [x] Login  
+> - [x] Marks  
+> - [x] Timetable  
+> - [ ] Komens  
+> - [ ] Absence

src/color.h

@@ -1,3 +1,7 @@
+
+// Header guard
+#ifndef RESET
+
 #define RESET   "\033[0m"
 #define BLACK   "\033[30m"      /* Black */
 #define RED     "\033[31m"      /* Red */
@@ -15,3 +19,5 @@
 #define BOLDMAGENTA "\033[1m\033[35m"      /* Bold Magenta */
 #define BOLDCYAN    "\033[1m\033[36m"      /* Bold Cyan */
 #define BOLDWHITE   "\033[1m\033[37m"      /* Bold White */
+
+#endif

src/const.h

@@ -0,0 +1,19 @@
+#include <string_view>
+#ifndef VERSION
+
+#define VERSION "0.7.2"
+#define NAME "bakatui"
+
+inline constexpr auto hash_djb2a(const std::string_view sv) {
+  unsigned long hash{5381};
+  for (unsigned char c : sv) {
+    hash = ((hash << 5) + hash) ^ c;
+  }
+  return hash;
+}
+
+inline constexpr auto operator"" _sh(const char *str, size_t len) {
+  return hash_djb2a(std::string_view{str, len});
+}
+
+#endif

src/flags.cpp

@@ -0,0 +1,24 @@
+#include "const.h"
+#include <iostream>
+#include "helper_funcs.h"
+#include <cstdio>
+
+void PrintHelp() {
+    std::cout << "Usage: " << NAME << " [OPTIONS]" << "\n"
+    << "-h        Show this help menu\n"
+    << "-V        Show version\n"
+    << "-v        verbose mode\n"
+    << "-L        Force new login\n"
+    << "-S        Ignore SSL cert validity\n";
+    safe_exit(0);
+  }
+  
+void PrintVersion() {
+    std::cout << NAME" " << VERSION"\n" << "License GPLv3: GNU GPL version 3 <https://gnu.org/licenses/gpl.html>.\n";
+    safe_exit(0);
+  }
+
+void DeleteLogin(std::string savedir_path) {
+    std::remove((savedir_path + "/authfile").c_str());
+    std::remove((savedir_path + "/urlfile").c_str());
+}

src/flags.h

@@ -0,0 +1,10 @@
+#include <string>
+// header guard
+#ifndef _ba_fl_hg_
+#define _ba_fl_hg_
+
+void PrintHelp();
+void PrintVersion();
+void DeleteLogin(std::string savedir_path);
+
+#endif

src/helper_funcs.cpp

@@ -1,13 +1,23 @@
+#include "helper_funcs.h"
+#include "color.h"
+#include "main.h"
+#include "memory.h"
 #include "net.h"
+#include <codecvt>
 #include <csignal>
 #include <curses.h>
 #include <dirent.h>
 #include <filesystem>
 #include <fstream>
 #include <iostream>
+#include <locale>
+#include <panel.h>
 #include <string>
 #include <termios.h>
 #include <unistd.h>
+#include <vector>
+
+std::vector<allocation> *current_allocated;
 
 void safe_exit(int code) {
   switch (code) {
@@ -26,12 +36,13 @@ void safe_exit(int code) {
 
   case SIGSEGV:
     std::cerr << "\nreceived SIGSEGV(segmentaiton fault) exiting...\nIf this "
-                 "repeats please report it as bug\n";
+                 "repeats please report it as a bug\n";
     break;
 
   default:
     break;
   }
+  delete_all(current_allocated);
 
   curl_easy_cleanup(curl);
   endwin();
@@ -43,32 +54,44 @@ std::string bool_to_string(bool bool_in) { return bool_in ? "true" : "false"; }
 
 std::string SoRAuthFile(bool save, std::string data) {
 
-  std::string savedir_path = std::getenv("HOME");
+  std::string home = std::getenv("HOME");
-  savedir_path.append("/.local/share/bakatui");
+  if (home.empty()) {
-
+    std::cerr << RED "[ERROR] " RESET << "HOME environment variable not set.\n";
-  DIR *savedir = opendir(savedir_path.c_str());
+    safe_exit(EXIT_FAILURE);
-  if (savedir) {
-    /* Directory exists. */
-    closedir(savedir);
-  } else if (ENOENT == errno) {
-    /* Directory does not exist. */
-    std::filesystem::create_directories(savedir_path);
-  } else {
-    /* opendir() failed for some other reason. */
-    std::cerr << "cannot access ~/.local/share/bakatui\n";
-    safe_exit(100);
   }
 
-  std::string authfile_path = std::string(savedir_path) + "/auth";
+  std::string savedir_path = home;
+  savedir_path.append("/.local/share/bakatui");
+
+  if (!std::filesystem::exists(savedir_path)) {
+    if (!std::filesystem::create_directories(savedir_path)) {
+      std::cerr << RED "[ERROR] " RESET
+                << "Failed to create directory: " << savedir_path << "\n";
+      safe_exit(EXIT_FAILURE);
+    }
+  }
+
+  std::string authfile_path = savedir_path + "/auth";
 
   if (save) {
     std::ofstream authfile(authfile_path);
+    if (!authfile.is_open()) {
+      std::cerr << RED "[ERROR] " RESET
+                << "Failed to open auth file for writing.\n";
+      safe_exit(EXIT_FAILURE);
+    }
     authfile << data;
     authfile.close();
     return "";
   } else {
     std::ifstream authfile(authfile_path);
-    authfile >> data;
+    if (!authfile.is_open()) {
+      std::cerr << RED "[ERROR] " RESET
+                << "Failed to open auth file for reading.\n";
+      safe_exit(EXIT_FAILURE);
+    }
+    data.assign((std::istreambuf_iterator<char>(authfile)),
+                std::istreambuf_iterator<char>());
     authfile.close();
     return data;
   }
@@ -88,8 +111,9 @@ void get_input_and_login() {
   bakaapi::login(username, password);
 }
 
+// Original function
 void print_in_middle(WINDOW *win, int starty, int startx, int width,
-                     char *string, chtype color) {
+                     const char *string, chtype color) {
   int length, x, y;
   float temp;
 
@@ -112,19 +136,109 @@ void print_in_middle(WINDOW *win, int starty, int startx, int width,
   refresh();
 }
 
+// Wide character version
+void wprint_in_middle(WINDOW *win, int starty, int startx, int width,
+                      const wchar_t *string, chtype color) {
+  int length, x, y;
+  float temp;
+
+  if (win == NULL)
+    win = stdscr;
+  getyx(win, y, x);
+  if (startx != 0)
+    x = startx;
+  if (starty != 0)
+    y = starty;
+  if (width == 0)
+    width = 80;
+
+  length = wcslen(string);
+  temp = (width - length) / 2;
+  x = startx + (int)temp;
+  wattron(win, color);
+  if (mvwaddwstr(win, y, x, string) == ERR) {
+    if (config.verbose) {
+      std::wcerr << RED "[ERROR]" << RESET " wprint_in_middle failed to print "
+                 << string << "\n";
+    }
+  }
+  wattroff(win, color);
+  refresh();
+}
 
 const std::string WHITESPACE = " \n\r\t\f\v";
+const std::wstring WWHITESPACE = L" \n\r\t\f\v";
 
 std::string ltrim(const std::string &s) {
-    size_t start = s.find_first_not_of(WHITESPACE);
+  size_t start = s.find_first_not_of(WHITESPACE);
-    return (start == std::string::npos) ? "" : s.substr(start);
+  return (start == std::string::npos) ? "" : s.substr(start);
 }
 
 std::string rtrim(const std::string &s) {
-    size_t end = s.find_last_not_of(WHITESPACE);
+  size_t end = s.find_last_not_of(WHITESPACE);
-    return (end == std::string::npos) ? "" : s.substr(0, end + 1);
+  return (end == std::string::npos) ? "" : s.substr(0, end + 1);
 }
 
 std::string rm_tr_le_whitespace(const std::string &s) {
-    return rtrim(ltrim(s));
+  return rtrim(ltrim(s));
+}
+
+// Wide character versions
+std::wstring wltrim(const std::wstring &s) {
+  size_t start = s.find_first_not_of(WWHITESPACE);
+  return (start == std::wstring::npos) ? L"" : s.substr(start);
+}
+
+std::wstring wrtrim(const std::wstring &s) {
+  size_t end = s.find_last_not_of(WWHITESPACE);
+  return (end == std::wstring::npos) ? L"" : s.substr(0, end + 1);
+}
+
+std::wstring wrm_tr_le_whitespace(const std::wstring &s) {
+  return wrtrim(wltrim(s));
+}
+
+// Conversion utilities
+char *wchar_to_char(wchar_t *src) {
+  if (!src)
+    return nullptr;
+
+  size_t len = wcslen(src) + 1; // +1 for null terminator
+  char *dest = new char[len * MB_CUR_MAX];
+
+  std::wcstombs(dest, src, len * MB_CUR_MAX);
+  return dest;
+}
+
+wchar_t *char_to_wchar(char *src) {
+  if (!src)
+    return nullptr;
+
+  size_t len = strlen(src) + 1; // +1 for null terminator
+  wchar_t *dest = new wchar_t[len];
+
+  std::mbstowcs(dest, src, len);
+  return dest;
+}
+
+std::wstring string_to_wstring(const std::string &str) {
+  std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
+  return converter.from_bytes(str);
+}
+
+std::string wstring_to_string(const std::wstring &wstr) {
+  std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
+  return converter.to_bytes(wstr);
+}
+
+void move_panel_relative(PANEL *panel, int dy, int dx) {
+  WINDOW *win = panel_window(panel);
+  int y, x;
+
+  getbegyx(win, y, x);
+
+  int new_y = y + dy;
+  int new_x = x + dx;
+
+  move_panel(panel, new_y, new_x);
 }

src/helper_funcs.h

@@ -1,9 +1,36 @@
+#include "memory.h"
 #include <curses.h>
 #include <string>
+#include <vector>
+
+// header guard
+#ifndef _ba_hf_hg_
+#define _ba_hf_hg_
+
+extern std::vector<allocation> *current_allocated;
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+
 void safe_exit(int code);
 std::string bool_to_string(bool bool_in);
 std::string SoRAuthFile(bool save, std::string data);
 void get_input_and_login();
+
+// Original functions
 void print_in_middle(WINDOW *win, int starty, int startx, int width,
-                     char *string, chtype color);
+                     const char *string, chtype color);
 std::string rm_tr_le_whitespace(const std::string &s);
+
+// Wide character support functions
+void wprint_in_middle(WINDOW *win, int starty, int startx, int width,
+                      const wchar_t *string, chtype color);
+std::wstring wrm_tr_le_whitespace(const std::wstring &s);
+
+// Conversion utilities
+char *wchar_to_char(wchar_t *src);
+wchar_t *char_to_wchar(char *src);
+
+std::wstring string_to_wstring(const std::string &str);
+std::string wstring_to_string(const std::wstring &wstr);
+
+#endif

src/main.cpp

@@ -2,9 +2,9 @@
 #include "color.h"
 #include "helper_funcs.h"
 #include "main_menu.h"
-#include "marks.h"
 #include "net.h"
 #include <csignal>
+#include <cstdlib>
 #include <curl/curl.h>
 #include <curses.h>
 #include <fstream>
@@ -12,9 +12,13 @@
 #include <regex>
 #include <string>
 #include <unistd.h>
+#include "flags.h"
+#include "types.h"
 
 std::string baka_api_url;
 
+Config config;
+
 int main(int argc, char **argv) {
   // signal handlers
   signal(SIGTERM, safe_exit);
@@ -25,12 +29,23 @@ int main(int argc, char **argv) {
   // error signal handlers
   signal(SIGSEGV, safe_exit);
 
-  marks_page();
-  /*
-
   {
+
     std::string savedir_path = std::getenv("HOME");
     savedir_path.append("/.local/share/bakatui");
+
+    int opt;
+    while ((opt = getopt(argc, argv, "hVvLS:")) != -1) {
+        switch (opt) {
+            case 'h': PrintHelp(); break;
+            case 'V': PrintVersion(); break;
+            case 'v': config.verbose = true; break;
+            case 'L': DeleteLogin(savedir_path); break;
+            case 'S': config.ignoressl = true; break;
+            default: std::cerr << RED"[ERROR]" << RESET" invalid option: " << (char)optopt << "\ntry: -h\n"; safe_exit(EINVAL);
+        }
+    }
+
     std::string urlfile_path = std::string(savedir_path) + "/url";
     std::ifstream urlfile;
     urlfile.open(urlfile_path);
@@ -64,6 +79,6 @@ int main(int argc, char **argv) {
     get_input_and_login();
   }
   main_menu();
-  */
+  
   return 0;
 }

src/main.h

@@ -1,4 +1,11 @@
 #include <curl/curl.h>
 #include <string>
+#include "types.h"
+// header guard
+#ifndef _ba_ma_hg_
+#define _ba_ma_hg_
 
 extern std::string baka_api_url;
+extern Config config;
+
+#endif

src/main_menu.cpp

@@ -1,18 +1,22 @@
 #include "helper_funcs.h"
 #include "net.h"
+#include "timetable.h"
 #include <cstddef>
 #include <cstdlib>
 #include <cstring>
 #include <curses.h>
 #include <menu.h>
 
-#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
+#include "marks.h"
+
 #define CTRLD 4
 
-char *choices[] = {
+wchar_t *choices[] = {
-    "login",    "Grades",  "shedule", "Komens",
+    L"login",    L"Marks",   L"timetable", L"Komens",
-    "Homework", "Absence", "Exit",    (char *)NULL,
+    L"Homework", L"Absence", L"Exit",      (wchar_t *)NULL,
 };
+void (*choicesFuncs[])() = {nullptr, marks_page, timetable_page, nullptr,
+                            nullptr, nullptr,    nullptr,        nullptr};
 
 void main_menu() {
   ITEM **my_items;
@@ -22,6 +26,7 @@ void main_menu() {
   int n_choices, i;
 
   /* Initialize curses */
+  setlocale(LC_ALL, "");
   initscr();
   start_color();
   cbreak();
@@ -34,7 +39,8 @@ void main_menu() {
   n_choices = ARRAY_SIZE(choices);
   my_items = (ITEM **)calloc(n_choices, sizeof(ITEM *));
   for (i = 0; i < n_choices; ++i)
-    my_items[i] = new_item(choices[i], choices[i]);
+    my_items[i] =
+        new_item(wchar_to_char(choices[i]), wchar_to_char(choices[i]));
 
   /* Crate menu */
   my_menu = new_menu((ITEM **)my_items);
@@ -54,7 +60,7 @@ void main_menu() {
   /* Print a border around the main window and print a title */
   box(my_menu_win, 0, 0);
 
-  print_in_middle(my_menu_win, 1, 0, 40, "Main Menu", COLOR_PAIR(1));
+  wprint_in_middle(my_menu_win, 1, 0, 40, L"Main Menu", COLOR_PAIR(1));
   mvwaddch(my_menu_win, 2, 0, ACS_LTEE);
   mvwhline(my_menu_win, 2, 1, ACS_HLINE, 38);
   mvwaddch(my_menu_win, 2, 39, ACS_RTEE);
@@ -85,11 +91,11 @@ void main_menu() {
       menu_driver(my_menu, REQ_UP_ITEM);
       break;
     case 10: // ENTER
-      move(20, 0);
+      clear();
-      clrtoeol();
+      choicesFuncs[item_index(current_item(my_menu))]();
-      mvprintw(20, 0, "Item selected is : %s",
-               item_name(current_item(my_menu)));
       pos_menu_cursor(my_menu);
+      refresh();
+      wrefresh(my_menu_win);
       break;
     }
     wrefresh(my_menu_win);

src/main_menu.h

@@ -1 +1,7 @@
+// header guard
+#ifndef _ba_mm_hg_
+#define _ba_mm_hg_
+
 void main_menu();
+
+#endif

src/marks.cpp

@@ -1,43 +1,25 @@
 #include "marks.h"
 #include "helper_funcs.h"
+#include "memory.h"
+#include "net.h"
+#include <algorithm>
 #include <cstddef>
 #include <cstdint>
 #include <cstdio>
 #include <cstring>
 #include <curses.h>
-#include <fstream>
+#include <format>
-#include <iostream>
 #include <menu.h>
 #include <nlohmann/json.hpp>
 #include <panel.h>
+#include <string>
+#include <vector>
 
 using nlohmann::json;
 
-// Thsi code is based on
+// This code is based on
 // https://github.com/tony/NCURSES-Programming-HOWTO-examples/blob/master/16-panels
-/*
+// MIT License (see original file)
-The MIT License (MIT)
-
-Copyright (c) 2016 Tony Narlock
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-*/
 
 #define NLINES 10
 #define NCOLS 40
@@ -45,23 +27,30 @@ SOFTWARE.
 #define DEFAULT_X_OFFSET 10
 #define DEFAULT_Y_OFFSET 2
 
+#define DEFAULT_PADDING 4
+
+std::vector<allocation> marks_allocated;
+
 void init_wins(WINDOW **wins, int n, json marks_json);
-void win_show(WINDOW *win, char *label, int label_color, int width);
+void win_show(WINDOW *win, wchar_t *label, int label_color, int width,
+              int height, json marks_json, int SubjectIndex);
 
 void marks_page() {
-  // DONT FORGET TO UNCOMMENT
+  current_allocated = &marks_allocated;
-  // json resp_from_api = bakaapi::get_grades();
+  json resp_from_api;
-  std::ifstream f("test-data/marks2.json");
+  {
-  json resp_from_api = json::parse(f);
+    std::string endpoint = "api/3/marks";
-
+    resp_from_api = bakaapi::get_data_from_endpoint(endpoint);
-  WINDOW **my_wins;
+  }
   size_t size_my_wins = resp_from_api["Subjects"].size();
-  my_wins = new (std::nothrow) WINDOW *[size_my_wins];
+  WINDOW **my_wins = new (std::nothrow) WINDOW *[size_my_wins];
+  marks_allocated.push_back({WINDOW_ARRAY, my_wins, size_my_wins});
 
-  PANEL **my_panels;
   size_t size_my_panels = resp_from_api["Subjects"].size();
-  my_panels = new (std::nothrow) PANEL *[size_my_panels];
+  PANEL **my_panels = new (std::nothrow) PANEL *[size_my_panels];
+  marks_allocated.push_back({PANEL_ARRAY, my_panels, size_my_panels});
 
+  // trows compiler warning for some reason but cannot be removed
   PANEL *top;
   int ch;
 
@@ -73,8 +62,6 @@ void marks_page() {
   noecho();
   keypad(stdscr, TRUE);
 
-  std::clog << COLS << " " << LINES << std::endl;
-
   /* Initialize all the colors */
   for (uint8_t i = 0; i < 8; i++) {
     init_pair(i, i, COLOR_BLACK);
@@ -82,78 +69,133 @@ void marks_page() {
 
   init_wins(my_wins, resp_from_api["Subjects"].size(), resp_from_api);
 
-  for (size_t i = 0; i < size_my_panels; i++) {
+  // store all original window position
-    /* Attach a panel to each window Order is bottom up */
+  int *original_y = new int[size_my_wins];
-    my_panels[i] = new_panel(my_wins[i]);
+  marks_allocated.push_back({GENERIC_ARRAY, original_y, size_my_wins});
-
+  int *original_x = new int[size_my_wins];
-    /* Set up the user pointers to the next panel */
+  marks_allocated.push_back({GENERIC_ARRAY, original_x, size_my_wins});
-    if ((i + 1) < size_my_panels) {
+  for (size_t i = 0; i < size_my_wins; ++i) {
-      set_panel_userptr(my_panels[i], my_panels[(i + 1)]);
+    getbegyx(my_wins[i], original_y[i], original_x[i]);
-    } else {
-      set_panel_userptr(my_panels[i], my_panels[0]);
-    }
   }
 
-  // Update the stacking order.
+  // Attach panels
-  update_panels();
+  for (size_t i = 0; i < size_my_panels; i++) {
+    my_panels[i] = new_panel(my_wins[i]);
+    set_panel_userptr(my_panels[i], (i + 1 < size_my_panels) ? my_panels[i + 1]
+                                                             : my_panels[0]);
+  }
 
-  /* Show it on the screen */
+  update_panels();
   attron(COLOR_PAIR(4));
-  mvprintw(LINES - 2, 0, "Use tab to browse through the windows (F1 to Exit)");
+  mvprintw(LINES - 2, 0, "Arrows/j/k to scroll | F1 to exit | {mark} [weight]");
   attroff(COLOR_PAIR(4));
   doupdate();
 
-  top = my_panels[resp_from_api["Subjects"].size() - 1];
+  top = my_panels[size_my_panels - 1];
+  long y_offset = 0;
+
+  // Main loop
   while ((ch = getch()) != KEY_F(1)) {
+    bool needs_update = false;
+
     switch (ch) {
-    case 9:
+    case KEY_UP:
-      top = (PANEL *)panel_userptr(top);
+    case 'k': // Vim-style up
-      top_panel(top);
+      y_offset--;
+      needs_update = true;
+      break;
+
+    case KEY_DOWN:
+    case 'j': // Vim-style down
+      y_offset++;
+      needs_update = true;
       break;
     }
-    update_panels();
+
-    doupdate();
+    // Update window positions if scrolled
+    if (needs_update) {
+      for (size_t i = 0; i < size_my_panels; ++i) {
+        int new_y = original_y[i] - y_offset;
+        int new_x = original_x[i];
+        move_panel(my_panels[i], new_y, new_x);
+      }
+
+      update_panels();
+      doupdate();
+    }
   }
+
+  // Cleanup
   endwin();
-  delete[] my_wins;
+  clear();
-  delete[] my_panels;
+  delete_all(&marks_allocated);
 }
 
 /* Put all the windows */
 void init_wins(WINDOW **wins, int n, json marks_json) {
   int x, y, i;
-  char label[1500];
+  wchar_t label[1500];
 
   y = DEFAULT_Y_OFFSET;
   x = DEFAULT_X_OFFSET;
   uint8_t curent_color = 0;
+
+  unsigned int MaxHight = 0;
+  // this loop through subjects
   for (i = 0; i < n; ++i) {
 
     // Calculate label and max_text_length to determine window width
     std::string sub_name = marks_json["Subjects"][i]["Subject"]["Name"];
     std::string sub_avg_s = marks_json["Subjects"][i]["AverageText"];
-    sprintf(label, "%s - avg: %s", sub_name.c_str(), sub_avg_s.c_str());
 
-    size_t max_text_length = strlen(label);
+    // Convert to wchar_t
-    for (int j = 0; j < marks_json["Subjects"][i]["Marks"].size(); j++) {
+    std::wstring wsub_name = string_to_wstring(sub_name);
-      std::string caption = marks_json["Subjects"][i]["Marks"][j]["Caption"];
+    std::wstring wsub_avg_s = string_to_wstring(sub_avg_s);
-      std::string theme = marks_json["Subjects"][i]["Marks"][j]["Theme"];
+
-      caption = rm_tr_le_whitespace(caption);
+    // Using swprintf for wide character formatting
-      theme = rm_tr_le_whitespace(theme);
+    swprintf(label, sizeof(label) / sizeof(label[0]), L"%ls - avg: %ls",
+             wsub_name.c_str(), wsub_avg_s.c_str());
+
+    size_t max_text_length = wcslen(label);
+    for (unsigned int j = 0; j < static_cast<unsigned int>(
+                                     marks_json["Subjects"][i]["Marks"].size());
+         j++) {
+      std::string caption =
+          rm_tr_le_whitespace(marks_json["Subjects"][i]["Marks"][j]["Caption"]);
+      std::string theme =
+          rm_tr_le_whitespace(marks_json["Subjects"][i]["Marks"][j]["Theme"]);
+
+      std::wstring wcaption = string_to_wstring(caption);
+      std::wstring wtheme = string_to_wstring(theme);
+
+      // Some code that does something and fixes some edge cases
+      std::string testCaption = caption + std::format(" {{{}}} [{}]", "X", 0);
+      std::wstring wTestCaption = string_to_wstring(testCaption);
       max_text_length =
-          std::max({max_text_length, caption.length(), theme.length()});
+          std::max({max_text_length, wTestCaption.length(), wtheme.length()});
     }
 
-    int width = max_text_length + 4;
+    int width = max_text_length + DEFAULT_PADDING;
 
-    // hanndle windows overflowing off screen
+    // handle windows overflowing off screen
     if (x + width > COLS) {
       x = DEFAULT_X_OFFSET;
-      y += NLINES + 10;
+      y += MaxHight + 2;
+      MaxHight = 0;
+    }
+
+    if (static_cast<unsigned int>(marks_json["Subjects"][i]["Marks"].size()) *
+                2 +
+            DEFAULT_PADDING >
+        MaxHight) {
+      MaxHight =
+          marks_json["Subjects"][i]["Marks"].size() * 2 + DEFAULT_PADDING;
     }
 
     wins[i] = newwin(NLINES, NCOLS, y, x);
-    win_show(wins[i], label, curent_color + 1, width);
+    win_show(wins[i], label, curent_color + 1, width,
+             marks_json["Subjects"][i]["Marks"].size() * 2 + DEFAULT_PADDING,
+             marks_json, i);
 
     curent_color = (curent_color + 1) % 7;
     x += width + 5;
@@ -161,9 +203,12 @@ void init_wins(WINDOW **wins, int n, json marks_json) {
 }
 
 /* Show the window with a border and a label */
-void win_show(WINDOW *win, char *label, int label_color, int width) {
+void win_show(WINDOW *win, wchar_t *label, int label_color, int width,
-  int startx, starty, height;
+              int height, json marks_json, int SubjectIndex) {
-  height = 20;
+
+  // is the compiler smoking weed or something, why is it thinking starty is not
+  // used ??
+  int startx, starty;
 
   wresize(win, height, width);
 
@@ -175,6 +220,49 @@ void win_show(WINDOW *win, char *label, int label_color, int width) {
   mvwhline(win, 2, 1, ACS_HLINE, width - 2);
   mvwaddch(win, 2, width - 1, ACS_RTEE);
 
-  print_in_middle(win, 1, 0, width, label, COLOR_PAIR(label_color));
+  wprint_in_middle(win, 1, 0, width, label, COLOR_PAIR(label_color));
-  print_in_middle(win, 1, 0, width, label, COLOR_PAIR(label_color));
+
+  wchar_t CaptionBuf[1500];
+  wchar_t ThemeBuf[1500];
+  std::wstring wCaption;
+  int AdditionalOffset = 0;
+
+  for (size_t i = 0; i < marks_json["Subjects"][SubjectIndex]["Marks"].size();
+       i++) {
+    std::string Caption =
+        marks_json["Subjects"][SubjectIndex]["Marks"][i]["Caption"];
+    Caption = rm_tr_le_whitespace(Caption);
+
+    std::string MarkText =
+        marks_json["Subjects"][SubjectIndex]["Marks"][i]["MarkText"];
+    int Weight = marks_json["Subjects"][SubjectIndex]["Marks"][i]["Weight"];
+
+    // Create formatted string with mark and weight
+    std::string formattedCaption =
+        Caption + std::format(" - {{{}}} [{}]", MarkText, Weight);
+
+    // Convert to wide string
+    wCaption = string_to_wstring(formattedCaption);
+
+    wcsncpy(CaptionBuf, wCaption.c_str(),
+            sizeof(CaptionBuf) / sizeof(CaptionBuf[0]) - 1);
+    CaptionBuf[sizeof(CaptionBuf) / sizeof(CaptionBuf[0]) - 1] =
+        L'\0'; // Ensure null termination
+
+    wprint_in_middle(win, 3 + i + AdditionalOffset, 0, width, CaptionBuf,
+                     COLOR_PAIR(label_color));
+
+    std::string Theme =
+        marks_json["Subjects"][SubjectIndex]["Marks"][i]["Theme"];
+    std::wstring wTheme = string_to_wstring(rm_tr_le_whitespace(Theme));
+
+    wcsncpy(ThemeBuf, wTheme.c_str(),
+            sizeof(ThemeBuf) / sizeof(ThemeBuf[0]) - 1);
+    ThemeBuf[sizeof(ThemeBuf) / sizeof(ThemeBuf[0]) - 1] =
+        L'\0'; // Ensure null termination
+
+    wprint_in_middle(win, 3 + i + 1 + AdditionalOffset, 0, width, ThemeBuf,
+                     COLOR_PAIR(label_color));
+    AdditionalOffset++;
+  }
 }

src/marks.h

@@ -1 +1,5 @@
+// header guard
+#ifndef _ba_mp_hg_
+#define _ba_mp_hg_
 void marks_page();
+#endif

src/memory.cpp

@@ -0,0 +1,48 @@
+#include "memory.h"
+#include "color.h"
+#include <iostream>
+#include <ncurses.h>
+#include <panel.h>
+
+void delete_all(std::vector<allocation> *allocated) {
+  if (allocated == nullptr) {
+	  return;
+  }
+  for (long long i = allocated->size() - 1; i >= 0; i--) {
+    switch (allocated->at(i).type) {
+    case WINDOW_ARRAY: {
+      WINDOW **windows = static_cast<WINDOW **>(allocated->at(i).ptr);
+      for (std::size_t j = 0; j < allocated->at(i).size; j++) {
+        delwin(windows[j]);
+      }
+      delete[] windows;
+      break;
+    }
+    case PANEL_ARRAY: {
+      PANEL **panels = static_cast<PANEL **>(allocated->at(i).ptr);
+      for (std::size_t j = 0; j < allocated->at(i).size; j++) {
+        del_panel(panels[j]);
+      }
+      delete[] panels;
+      break;
+    }
+    case GENERIC_ARRAY:
+      delete[] static_cast<char *>(allocated->at(i).ptr);
+      break;
+    case WINDOW_TYPE:
+      delwin(static_cast<WINDOW *>(allocated->at(i).ptr));
+      break;
+    case PANEL_TYPE:
+      del_panel(static_cast<PANEL *>(allocated->at(i).ptr));
+      break;
+    case GENERIC_TYPE:
+      delete static_cast<char *>(allocated->at(i).ptr);
+      break;
+    default:
+      std::cerr << RED "[!!CRITICAL!!]" << RESET " Unknown allocation type"
+                << "\n";
+      break;
+    }
+    allocated->pop_back();
+  }
+}

src/memory.h

@@ -0,0 +1,23 @@
+// header guard
+#ifndef _ba_me_hg_
+#define _ba_me_hg_
+
+#include <cstddef>
+#include <vector>
+enum AllocationType {
+  WINDOW_ARRAY,
+  PANEL_ARRAY,
+  GENERIC_ARRAY,
+  WINDOW_TYPE,
+  PANEL_TYPE,
+  GENERIC_TYPE
+};
+
+struct allocation {
+  AllocationType type;
+  void *ptr;
+  std::size_t size;
+};
+
+void delete_all(std::vector<allocation> *allocated);
+#endif

src/net.cpp

@@ -1,7 +1,9 @@
 #include "net.h"
 #include "color.h"
+#include "const.h"
 #include "helper_funcs.h"
 #include "main.h"
+#include <cerrno>
 #include <cmath>
 #include <cstddef>
 #include <cstdlib>
@@ -18,6 +20,14 @@
 
 using nlohmann::json;
 
+// metods
+enum metod {
+  GET,
+  POST,
+};
+
+std::string access_token;
+
 CURL *curl = curl_easy_init();
 
 // Callback function to write data into a std::string
@@ -28,30 +38,45 @@ size_t WriteCallback(void *contents, size_t size, size_t nmemb,
   return totalSize;
 }
 
-std::tuple<std::string, int> send_curl_request(std::string endpoint,
+std::tuple<std::string, int> send_curl_request(std::string endpoint, metod type,
-                                               std::string type,
                                                std::string req_data) {
   std::string response;
   std::string url = baka_api_url + endpoint;
+  if (type == GET) {
+    url.append("?" + req_data);
+  }
 
   if (curl) {
     curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
     curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
 
-    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+    if (config.ignoressl) {
-    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+      curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
-    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
+      curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+    }
 
-    curl_easy_setopt(curl, CURLOPT_POSTFIELDS, req_data.c_str());
+    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
 
     struct curl_slist *headers = NULL;
     headers = curl_slist_append(
         headers, "Content-Type: application/x-www-form-urlencoded");
+    headers = curl_slist_append(
+        headers, std::format("User-Agent: bakatui/{}", VERSION).c_str());
+
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
 
-    if (type == "POST") {
+    switch (type) {
+    case GET:
+      curl_easy_setopt(curl, CURLOPT_HTTPGET, 1L);
+      break;
+    case POST:
+      curl_easy_setopt(curl, CURLOPT_POSTFIELDS, req_data.c_str());
       curl_easy_setopt(curl, CURLOPT_POST, 1L);
+      break;
+    default:
+      std::cerr << RED "[ERROR] " << RESET "invalid metod\n";
+      safe_exit(EINVAL);
     }
 
   } else {
@@ -63,21 +88,17 @@ std::tuple<std::string, int> send_curl_request(std::string endpoint,
   int http_code = 0;
   curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);
 
-  curl_easy_cleanup(curl); // Cleanup
-
   return {response, http_code};
 }
 namespace bakaapi {
 
-std::string access_token;
-
 void login(std::string username, std::string password) {
 
   std::string req_data =
       std::format("client_id=ANDR&grant_type=password&username={}&password={}",
                   username, password);
 
-  auto [response, http_code] = send_curl_request("api/login", "POST", req_data);
+  auto [response, http_code] = send_curl_request("api/login", POST, req_data);
   if (http_code != 200) {
     std::cerr << RED "[ERROR] " << RESET << "login failed " << http_code
               << " is non 200 response\n";
@@ -100,12 +121,12 @@ void login(std::string username, std::string password) {
   json resp_parsed = json::parse(response);
 
   access_token = resp_parsed["access_token"];
-
-  // DEBUG
-  std::cout << "access token: " << access_token << std::endl;
 }
 
 void refresh_access_token() {
+  if (config.verbose) {
+    std::clog << "refreshing access token please wait...\n";
+  }
 
   json authfile_parsed = json::parse(SoRAuthFile(false, ""));
 
@@ -116,7 +137,7 @@ void refresh_access_token() {
                   "token&refresh_token={}",
                   refresh_token);
 
-  auto [response, http_code] = send_curl_request("api/login", "POST", req_data);
+  auto [response, http_code] = send_curl_request("api/login", POST, req_data);
   if (http_code != 200) {
     std::cerr << RED "[ERROR] " << RESET << http_code
               << "is non 200 response\n";
@@ -130,21 +151,31 @@ void refresh_access_token() {
   access_token = resp_parsed["access_token"];
 }
 
-json get_grades() {
+void is_access_token_empty() {
-  if(access_token.empty()) {
+  if (access_token.empty()) {
     json authfile_parsed = json::parse(SoRAuthFile(false, ""));
     access_token = authfile_parsed["access_token"];
   }
-      std::string req_data =
+}
-      std::format("Authorization=Bearer&access_token={}",
-                  access_token);
 
-    auto [response, http_code] = send_curl_request("api/3/marks", "GET", req_data);
+// supports all endpoints that only require access_token
+json get_data_from_endpoint(std::string &endpoint,
+                            std::string additional_data) {
+  is_access_token_empty();
+access_token_refreshed:
+  std::string req_data =
+      std::format("Authorization=Bearer&access_token={}", access_token);
+  if (!additional_data.empty()) {
+    req_data.append(std::format("&{}", additional_data));
+  }
 
-    if(http_code != 200) {
+  auto [response, http_code] = send_curl_request(endpoint, GET, req_data);
-      refresh_access_token();
-    }
 
-    return json::parse(response);
+  if (http_code != 200) {
+    refresh_access_token();
+    goto access_token_refreshed;
+  }
+
+  return json::parse(response);
 }
 } // namespace bakaapi

src/net.h

@@ -1,6 +1,9 @@
 #include <curl/curl.h>
 #include <nlohmann/json.hpp>
 #include <string>
+// header guard
+#ifndef _ba_ne_hg_
+#define _ba_ne_hg_
 
 using nlohmann::json;
 
@@ -8,5 +11,6 @@ extern CURL *curl;
 namespace bakaapi {
 void login(std::string username, std::string password);
 void refresh_access_token();
-json get_grades();
+json get_data_from_endpoint(std::string &endpoint, std::string data = "");
 } // namespace bakaapi
+#endif

src/timetable.cpp

@@ -0,0 +1,679 @@
+#include "timetable.h"
+#include "color.h"
+#include "const.h"
+#include "helper_funcs.h"
+#include "memory.h"
+#include "net.h"
+#include "types.h"
+#include <bits/chrono.h>
+#include <cstdint>
+#include <cstdio>
+#include <ctime>
+#include <curses.h>
+#include <cwchar>
+#include <iomanip>
+#include <iostream>
+#include <ncurses.h>
+#include <nlohmann/json.hpp>
+#include <panel.h>
+#include <sstream>
+#include <string>
+#include <sys/types.h>
+#include <vector>
+
+using nlohmann::json;
+#define BOTTOM_PADDING 5
+
+#define DEFAULT_OFFSET 3
+
+std::vector<allocation> timetable_allocated;
+
+const wchar_t *day_abriviations[] = {nullptr, L"Mo", L"Tu", L"We",
+                                     L"Th",   L"Fr", L"Sa", L"Su"};
+
+void draw_days(WINDOW **&day_windows, uint16_t cell_height, uint8_t num_of_days,
+               json &resp_from_api);
+
+void draw_lessons(WINDOW **&lesson_windows, uint8_t num_of_columns,
+                  uint16_t cell_width, std::vector<uint8_t> &HourIdLookupTable,
+                  json &resp_from_api);
+
+void draw_cells(uint8_t num_of_columns, uint8_t num_of_days,
+                uint16_t cell_width, uint16_t cell_height,
+                std::vector<std::vector<WINDOW *>> &cells,
+                std::vector<uint8_t> &HourIdLookupTable, json &resp_from_api);
+
+uint8_t hour_id_to_index(const std::vector<uint8_t> &HourIdLookupTable,
+                         uint8_t id) {
+  for (uint8_t i = 0; i < HourIdLookupTable.size(); i++) {
+    if (HourIdLookupTable[i] == id) {
+      return i;
+    }
+  }
+  return 0;
+}
+
+json *partial_json_by_id(json &resp_from_api, const std::string &what,
+                         const std::string &id) {
+  for (uint8_t i = 0; i < resp_from_api[what].size(); i++) {
+    if (resp_from_api[what][i]["Id"].get<std::string>() == id) {
+      return &resp_from_api[what][i];
+    }
+  }
+  return nullptr;
+}
+
+std::wstring get_data_for_atom(json &resp_from_api, json *atom,
+                               const std::string &from_where,
+                               const std::string &id_key,
+                               const std::string &what) {
+  return string_to_wstring(
+      partial_json_by_id(resp_from_api, from_where,
+                         atom->at(id_key).get<std::string>())
+          ->at(what)
+          .get<std::string>());
+}
+
+json *find_atom_by_indexes(json &resp_from_api, uint8_t day_index,
+                           uint8_t hour_index,
+                           const std::vector<uint8_t> &HourIdLookupTable) {
+  for (uint8_t k = 0; k < resp_from_api["Days"][day_index]["Atoms"].size();
+       k++) {
+    if (resp_from_api["Days"][day_index]["Atoms"][k]["HourId"].get<uint8_t>() ==
+        HourIdLookupTable[hour_index]) {
+      return &resp_from_api["Days"][day_index]["Atoms"][k];
+    }
+  }
+  return nullptr; // No matching atom found
+}
+
+void timetable_page() {
+  current_allocated = &timetable_allocated;
+  auto dateSelected = std::chrono::system_clock::now();
+reload_for_new_week:
+  std::time_t date_time_t = std::chrono::system_clock::to_time_t(dateSelected);
+  std::tm local_time = *std::localtime(&date_time_t);
+
+  std::stringstream date_stringstream;
+  date_stringstream << std::put_time(&local_time, "%Y-%m-%d");
+
+  std::string date_string = "date=" + date_stringstream.str();
+  std::string endpoint = "api/3/timetable/actual";
+
+  json resp_from_api = bakaapi::get_data_from_endpoint(endpoint, date_string);
+
+  // this may be unnecessary but i dont have enaugh data to test it
+  // it sorts the hours by start time
+  std::vector<uint8_t> HourIdLookupTable(resp_from_api["Hours"].size());
+  {
+    using Id_and_Start_time = std::tuple<uint8_t, std::string>;
+    //                                   ID,      start_time
+
+    Id_and_Start_time *temp_hour_sorting_array =
+        new Id_and_Start_time[resp_from_api["Hours"].size()];
+    timetable_allocated.push_back({GENERIC_ARRAY, temp_hour_sorting_array,
+                                   resp_from_api["Hours"].size()});
+
+    for (uint8_t i = 0; i < resp_from_api["Hours"].size(); i++) {
+      temp_hour_sorting_array[i] = std::make_tuple(
+          resp_from_api["Hours"][i]["Id"].get<uint8_t>(),
+          resp_from_api["Hours"][i]["BeginTime"].get<std::string>());
+    };
+
+    std::sort(temp_hour_sorting_array,
+              temp_hour_sorting_array + resp_from_api["Hours"].size(),
+              [](const Id_and_Start_time &a, const Id_and_Start_time &b) {
+                const std::string &str_a = std::get<1>(a);
+                const std::string &str_b = std::get<1>(b);
+
+                const size_t colon_pos_a = str_a.find(':');
+                const size_t colon_pos_b = str_b.find(':');
+
+                if (colon_pos_a == std::string::npos ||
+                    colon_pos_b == std::string::npos) {
+                  std::cerr << RED "[ERROR]" << RESET
+                            << " Colon not found in time string\n";
+                  safe_exit(EXIT_FAILURE);
+                }
+
+                const std::string hour_a_S = str_a.substr(0, colon_pos_a);
+                const std::string hour_b_S = str_b.substr(0, colon_pos_b);
+
+                const std::string minute_a_S = str_a.substr(colon_pos_a + 1);
+                const std::string minute_b_S = str_b.substr(colon_pos_b + 1);
+
+                const uint8_t hour_a = std::stoi(hour_a_S);
+                const uint8_t hour_b = std::stoi(hour_b_S);
+
+                const uint8_t minute_a = std::stoi(minute_a_S);
+                const uint8_t minute_b = std::stoi(minute_b_S);
+
+                return (hour_a < hour_b) ||
+                       ((hour_a == hour_b) && (minute_a < minute_b));
+              });
+
+    for (uint8_t i = 0; i < resp_from_api["Hours"].size(); i++) {
+      HourIdLookupTable[i] = std::get<0>(temp_hour_sorting_array[i]);
+    }
+
+    delete[] temp_hour_sorting_array;
+    timetable_allocated.pop_back();
+  }
+
+  // some lambda dark magic
+  const uint8_t num_of_columns = [&]() -> uint8_t {
+    uint8_t result = 0;
+    for (uint8_t i = 0; i < resp_from_api["Days"].size(); i++) {
+      for (uint8_t j = 0; j < resp_from_api["Days"][i]["Atoms"].size(); j++) {
+        if (hour_id_to_index(
+                HourIdLookupTable,
+                resp_from_api["Days"][i]["Atoms"][j]["HourId"].get<uint8_t>()) >
+            result) {
+          result = hour_id_to_index(
+              HourIdLookupTable,
+              resp_from_api["Days"][i]["Atoms"][j]["HourId"].get<uint8_t>());
+        }
+      }
+    }
+    return result + 1;
+  }();
+
+  const uint8_t num_of_days = resp_from_api["Days"].size();
+
+  setlocale(LC_ALL, "");
+  /* Initialize curses */
+  initscr();
+  start_color();
+  cbreak();
+  noecho();
+  keypad(stdscr, TRUE);
+  curs_set(0);
+  /* Initialize all the colors */
+  for (uint8_t i = 0; i < 8; i++) {
+    init_pair(i, i, COLOR_BLACK);
+  }
+
+  const uint16_t cell_width = (COLS - BOTTOM_PADDING) / num_of_columns;
+  const uint16_t cell_height = (LINES - BOTTOM_PADDING) / num_of_days;
+
+  WINDOW **day_windows = new WINDOW *[num_of_days];
+  timetable_allocated.push_back({WINDOW_ARRAY, day_windows, num_of_days});
+
+  WINDOW **lesson_windows = new WINDOW *[num_of_columns];
+  timetable_allocated.push_back({WINDOW_ARRAY, lesson_windows, num_of_columns});
+
+  std::vector<std::vector<WINDOW *>> cells(
+      num_of_days, std::vector<WINDOW *>(num_of_columns));
+
+  // init day windows
+  for (uint8_t i = 0; i < num_of_days; i++) {
+    day_windows[i] = newwin(cell_height, DEFAULT_OFFSET,
+                            i * cell_height + DEFAULT_OFFSET, 0);
+  }
+
+  // init cell windows
+  for (uint8_t i = 0; i < num_of_columns; i++) {
+    lesson_windows[i] =
+        newwin(DEFAULT_OFFSET, cell_width, 0, i * cell_width + DEFAULT_OFFSET);
+  }
+  draw_lessons(lesson_windows, num_of_columns, cell_width, HourIdLookupTable,
+               resp_from_api);
+  // days have to be drawn after lessons for some reason i actualy have no idea
+  // why
+  draw_days(day_windows, cell_height, num_of_days, resp_from_api);
+
+  // init the cell windows
+  for (uint8_t i = 0; i < num_of_days; i++) {
+    for (uint8_t j = 0; j < num_of_columns; j++) {
+      cells[i][j] =
+          newwin(cell_height, cell_width, i * cell_height + DEFAULT_OFFSET,
+                 j * cell_width + DEFAULT_OFFSET);
+    }
+  }
+  draw_cells(num_of_columns, num_of_days, cell_width, cell_height, cells,
+             HourIdLookupTable, resp_from_api);
+
+  refresh();
+
+  SelectorType selected_cell(0, 0, 0, num_of_columns - 1, 0, num_of_days - 1);
+  std::array<WINDOW *, 4> selector_windows;
+  std::array<PANEL *, 4> selector_panels;
+
+  {
+    const chtype corners[] = {
+        ACS_ULCORNER, /* Upper left corner */
+        ACS_URCORNER, /* Upper right corner */
+        ACS_LLCORNER, /* Lower left corner */
+        ACS_LRCORNER  /* Lower right corner */
+    };
+
+    unsigned short x_offset, y_offset;
+    for (uint8_t i = 0; i < selector_windows.size(); i++) {
+
+      if (!(i % 2 == 0)) {
+        x_offset = cell_width - 1;
+      } else {
+        x_offset = 0;
+      }
+      if (!(i < 2)) {
+        y_offset = cell_height - 1;
+      } else {
+        y_offset = 0;
+      }
+
+      selector_windows[i] =
+          newwin(1, 1, DEFAULT_OFFSET + y_offset, DEFAULT_OFFSET + x_offset);
+      timetable_allocated.push_back({WINDOW_TYPE, selector_windows[i], 1});
+
+      selector_panels[i] = new_panel(selector_windows[i]);
+      timetable_allocated.push_back({PANEL_TYPE, selector_panels[i], 1});
+
+      wattron(selector_windows[i], COLOR_PAIR(COLOR_RED));
+      mvwaddch(selector_windows[i], 0, 0, corners[i]);
+      wattroff(selector_windows[i], COLOR_PAIR(COLOR_RED));
+    }
+  }
+  attron(COLOR_PAIR(COLOR_BLUE));
+  mvprintw(LINES - 2, 0,
+           "Arrows/hjkl to select | ENTER to show info | p/n to select weeks "
+           "|F1 to exit");
+  {
+    std::tm end_week = local_time;
+    std::tm start_week = local_time;
+
+    // Convert tm_wday (0-6) to API day format (1-7)
+    int current_wday = (local_time.tm_wday == 0) ? 7 : local_time.tm_wday;
+
+    // Get days of week from API (1-7 format where Monday is 1)
+    uint8_t start_day = resp_from_api["Days"][0]["DayOfWeek"].get<uint8_t>();
+    uint8_t end_day =
+        resp_from_api["Days"][resp_from_api["Days"].size() - 1]["DayOfWeek"]
+            .get<uint8_t>();
+
+    // Calculate days back to start day (handles week wraparound)
+    int days_back = (current_wday >= start_day)
+                        ? (current_wday - start_day)
+                        : (current_wday + 7 - start_day);
+
+    // Calculate days forward to end day (handles week wraparound)
+    int days_forward = (current_wday <= end_day) ? (end_day - current_wday)
+                                                 : (end_day + 7 - current_wday);
+
+    // Adjust dates
+    start_week.tm_mday -= days_back;
+    end_week.tm_mday += days_forward;
+
+    // Normalize the dates
+    std::mktime(&start_week);
+    std::mktime(&end_week);
+
+    // Format the dates as strings
+    std::stringstream start_week_strstream, end_week_strstream;
+    start_week_strstream << std::put_time(&start_week, "%d.%m.%Y");
+    end_week_strstream << std::put_time(&end_week, "%d.%m.%Y");
+
+    // kern. developer approved ↓↓
+    mvprintw(LINES - 2,
+             COLS - (start_week_strstream.str().length() + 3 +
+                     end_week_strstream.str().length()),
+             "%s",
+             (start_week_strstream.str() + " - " + end_week_strstream.str())
+                 .c_str());
+  }
+  attroff(COLOR_PAIR(COLOR_BLUE));
+
+  update_panels();
+  doupdate();
+
+  WINDOW *infobox_window;
+  PANEL *infobox_panel;
+
+  bool is_info_box_open = false;
+  int ch;
+  while ((ch = getch()) != KEY_F(1)) {
+    if (is_info_box_open) {
+
+      hide_panel(infobox_panel);
+      del_panel(infobox_panel);
+
+      delwin(infobox_window);
+
+      touchwin(stdscr);
+      refresh();
+
+      // Redraw everithing
+      draw_days(day_windows, cell_height, num_of_days, resp_from_api);
+      draw_lessons(lesson_windows, num_of_columns, cell_width,
+                   HourIdLookupTable, resp_from_api);
+      draw_cells(num_of_columns, num_of_days, cell_width, cell_height, cells,
+                 HourIdLookupTable, resp_from_api);
+
+      for (uint8_t i = 0; i < selector_panels.size(); i++) {
+        top_panel(selector_panels[i]);
+      }
+      update_panels();
+      doupdate();
+
+      is_info_box_open = false;
+      continue;
+    }
+  run_loop_again:
+    switch (ch) {
+    case KEY_UP:
+    case 'k':
+      selected_cell.y--;
+      break;
+    case KEY_DOWN:
+    case 'j':
+      selected_cell.y++;
+      break;
+    case KEY_LEFT:
+    case 'h':
+      selected_cell.x--;
+      break;
+    case KEY_RIGHT:
+    case 'l':
+      selected_cell.x++;
+      break;
+    case 'p':
+    case 'n':
+      (ch == 'p') ? dateSelected = dateSelected - std::chrono::days(7)
+                  : dateSelected = dateSelected + std::chrono::days(7);
+      delete_all(&timetable_allocated);
+      goto reload_for_new_week;
+      break;
+    case 10: // ENTER
+      json *atom = find_atom_by_indexes(resp_from_api, selected_cell.y,
+                                        selected_cell.x, HourIdLookupTable);
+      if (atom == nullptr) {
+        std::cerr << RED "[ERROR]" << RESET " Selector at invalid position\n";
+        safe_exit(129);
+      }
+
+      infobox_window = newwin(LINES * 0.6, COLS * 0.6, LINES * 0.2, COLS * 0.2);
+      infobox_panel = new_panel(infobox_window);
+      is_info_box_open = true;
+
+      wattron(infobox_window, COLOR_PAIR(COLOR_MAGENTA));
+      box(infobox_window, 0, 0);
+      mvwaddch(infobox_window, 2, 0, ACS_LTEE);
+      mvwhline(infobox_window, 2, 1, ACS_HLINE, COLS * 0.6 - 2);
+      mvwaddch(infobox_window, 2, COLS * 0.6 - 1, ACS_RTEE);
+      wattroff(infobox_window, COLOR_PAIR(COLOR_MAGENTA));
+
+      std::wstring Caption;
+      if (atom->contains("Change") && !atom->at("Change").is_null()) {
+        if (!atom->at("Change")["TypeName"].is_null()) {
+          Caption = string_to_wstring(
+              atom->at("Change")["TypeName"].get<std::string>());
+        }
+      }
+
+      if (Caption.empty()) {
+        try {
+          Caption = get_data_for_atom(resp_from_api, atom, "Subjects",
+                                      "SubjectId", "Name");
+        } catch (...) {
+          __asm__("nop");
+        }
+      }
+
+      std::wstring Teacher = L"";
+      try {
+        Teacher = get_data_for_atom(resp_from_api, atom, "Teachers",
+                                    "TeacherId", "Name");
+      } catch (...) {
+        __asm__("nop");
+      }
+      Teacher.insert(0, L"Teacher: ");
+
+      std::wstring Groups = L"";
+      try {
+        for (uint8_t i = 0; i < atom->at("GroupIds").size(); i++) {
+          for (uint8_t j = 0; j < resp_from_api["Groups"].size(); j++) {
+            if (resp_from_api["Groups"][j]["Id"].get<std::string>() ==
+                atom->at("GroupIds")[i].get<std::string>()) {
+              Groups.append(string_to_wstring(
+                  resp_from_api["Groups"][j]["Name"].get<std::string>()));
+              if (static_cast<size_t>(i + 1) < atom->at("GroupIds").size()) {
+                Groups.append(L", ");
+              }
+            }
+          }
+        }
+      } catch (const std::exception &e) {
+        std::cerr << RED "[ERROR]" << RESET " " << e.what() << "\n";
+      }
+      Groups = wrm_tr_le_whitespace(Groups);
+      Groups.insert(0, L"Groups: ");
+
+      std::wstring Room = L"";
+      try {
+        Room =
+            get_data_for_atom(resp_from_api, atom, "Rooms", "RoomId", "Name");
+        if (Room.empty()) {
+          Room = get_data_for_atom(resp_from_api, atom, "Rooms", "RoomId",
+                                   "Abbrev");
+          ;
+        }
+      } catch (...) {
+        __asm__("nop");
+      }
+      Room.insert(0, L"Room: ");
+
+      std::wstring Theme = L"";
+      try {
+        Theme = wrm_tr_le_whitespace(
+            string_to_wstring(atom->at("Theme").get<std::string>()));
+      } catch (...) {
+        __asm__("nop");
+      }
+      Theme.insert(0, L"Theme: ");
+
+      wprint_in_middle(infobox_window, 1, 0, getmaxx(infobox_window),
+                       Caption.c_str(), COLOR_PAIR(COLOR_CYAN));
+
+      // printing out of order to reduce wattro* directives
+      wattron(infobox_window, COLOR_PAIR(COLOR_YELLOW));
+      mvwaddwstr(infobox_window, 3, 1, Teacher.c_str());
+      mvwaddwstr(infobox_window, 5, 1, Room.c_str());
+      wattroff(infobox_window, COLOR_PAIR(COLOR_YELLOW));
+
+      wattron(infobox_window, COLOR_PAIR(COLOR_CYAN));
+      mvwaddwstr(infobox_window, 4, 1, Groups.c_str());
+      mvwaddwstr(infobox_window, 6, 1, Theme.c_str());
+      wattroff(infobox_window, COLOR_PAIR(COLOR_CYAN));
+
+      wattron(infobox_window, COLOR_PAIR(COLOR_BLUE));
+      mvwaddstr(infobox_window, getmaxy(infobox_window) - 2, 1,
+                "Press any key to close");
+      wattroff(infobox_window, COLOR_PAIR(COLOR_BLUE));
+
+      top_panel(infobox_panel);
+      update_panels();
+      doupdate();
+      continue;
+      break;
+    }
+    { // print selected indicator
+      chtype top_left_corner =
+          mvwinch(cells[selected_cell.y][selected_cell.x], 0, 0);
+
+      if (!((top_left_corner & A_CHARTEXT) == 32)) {
+        for (uint8_t i = 0; i < selector_panels.size(); i++) {
+          unsigned short x_offset, y_offset;
+          if (!(i % 2 == 0)) {
+            x_offset = cell_width - 1;
+          } else {
+            x_offset = 0;
+          }
+          if (!(i < 2)) {
+            y_offset = cell_height - 1;
+          } else {
+            y_offset = 0;
+          }
+
+          move_panel(selector_panels[i],
+                     DEFAULT_OFFSET + y_offset + selected_cell.y * cell_height,
+                     DEFAULT_OFFSET + x_offset + selected_cell.x * cell_width);
+        }
+        draw_cells(num_of_columns, num_of_days, cell_width, cell_height, cells,
+                   HourIdLookupTable, resp_from_api);
+        update_panels();
+        doupdate();
+
+      } else {
+        // skip if the cell is empty
+        goto run_loop_again;
+      }
+    }
+  }
+  delete_all(&timetable_allocated);
+  clear();
+  endwin();
+}
+
+void draw_days(WINDOW **&day_windows, uint16_t cell_height, uint8_t num_of_days,
+               json &resp_from_api) {
+  for (uint8_t i = 0; i < num_of_days; i++) {
+    // this wont draw left boarder window making it so it looks partially
+    // offscreen
+    wborder(day_windows[i], ' ', 0, 0, 0, ACS_HLINE, 0, ACS_HLINE, 0);
+
+    mvwaddwstr(
+        day_windows[i], cell_height / 2, 0,
+        day_abriviations[resp_from_api["Days"][i]["DayOfWeek"].get<uint8_t>()]);
+    wrefresh(day_windows[i]);
+  }
+}
+
+void draw_lessons(WINDOW **&lesson_windows, uint8_t num_of_columns,
+                  uint16_t cell_width, std::vector<uint8_t> &HourIdLookupTable,
+                  json &resp_from_api) {
+  for (uint8_t i = 0; i < num_of_columns; i++) {
+    wborder(lesson_windows[i], 0, 0, ' ', 0, ACS_VLINE, ACS_VLINE, 0, 0);
+    std::wstring caption;
+    std::wstring start_time;
+    std::wstring end_time;
+
+    for (uint8_t j = 0; j < resp_from_api["Hours"].size(); j++) {
+      if (resp_from_api["Hours"][j]["Id"].get<uint8_t>() ==
+          HourIdLookupTable[i]) {
+
+        std::string caption_ascii =
+            resp_from_api["Hours"][j]["Caption"].get<std::string>();
+        std::string start_time_ascii =
+            resp_from_api["Hours"][j]["BeginTime"].get<std::string>();
+        std::string end_time_ascii =
+            resp_from_api["Hours"][j]["EndTime"].get<std::string>();
+
+        caption = string_to_wstring(caption_ascii);
+        start_time = string_to_wstring(start_time_ascii);
+        end_time = string_to_wstring(end_time_ascii);
+
+        goto hour_id_found;
+      }
+    }
+    std::cerr << RED "[ERROR]" << RESET " Hour with id " << HourIdLookupTable[i]
+              << " not found\n";
+    safe_exit(128);
+
+  hour_id_found:
+
+    wprint_in_middle(lesson_windows[i], 0, 0, cell_width, caption.c_str(),
+                     COLOR_PAIR(0));
+    mvwaddwstr(lesson_windows[i], 1, 1, start_time.c_str());
+    print_in_middle(lesson_windows[i], 1, 0, cell_width, "-", COLOR_PAIR(0));
+    mvwaddwstr(lesson_windows[i], 1, cell_width - end_time.length() - 1,
+               end_time.c_str());
+    wrefresh(lesson_windows[i]);
+  }
+}
+
+void draw_cells(uint8_t num_of_columns, uint8_t num_of_days,
+                uint16_t cell_width, uint16_t cell_height,
+                std::vector<std::vector<WINDOW *>> &cells,
+                std::vector<uint8_t> &HourIdLookupTable, json &resp_from_api) {
+  for (uint8_t i = 0; i < num_of_days; i++) {
+    for (uint8_t j = 0; j < num_of_columns; j++) {
+
+      json *atom = find_atom_by_indexes(resp_from_api, i, j, HourIdLookupTable);
+      if (atom == nullptr) {
+        continue;
+      }
+      std::wstring Subject_Abbrev;
+      std::wstring Room_Abbrev;
+      std::wstring Teacher_Abbrev;
+      try {
+        if (atom->contains("Change") && !atom->at("Change").is_null()) {
+
+          switch (
+              hash_djb2a(atom->at("Change")["ChangeType"].get<std::string>())) {
+          case "Canceled"_sh:
+          case "Removed"_sh:
+            wattron(cells[i][j], COLOR_PAIR(COLOR_GREEN));
+            box(cells[i][j], 0, 0);
+            wattroff(cells[i][j], COLOR_PAIR(COLOR_GREEN));
+            break;
+          case "RoomChanged"_sh:
+          case "Substitution"_sh:
+            wattron(cells[i][j], COLOR_PAIR(COLOR_YELLOW));
+            box(cells[i][j], 0, 0);
+            wattroff(cells[i][j], COLOR_PAIR(COLOR_YELLOW));
+            break;
+          case "Added"_sh:
+            wattron(cells[i][j], COLOR_PAIR(COLOR_BLUE));
+            box(cells[i][j], 0, 0);
+            wattroff(cells[i][j], COLOR_PAIR(COLOR_BLUE));
+            break;
+          default:
+            // TODO add error handling
+            __asm__("nop");
+          }
+          if (!atom->at("Change")["TypeAbbrev"].is_null()) {
+            Subject_Abbrev = string_to_wstring(
+                atom->at("Change")["TypeAbbrev"].get<std::string>());
+          }
+        } else {
+          box(cells[i][j], 0, 0);
+        }
+
+        if (Subject_Abbrev.empty()) {
+          try {
+            Subject_Abbrev = get_data_for_atom(resp_from_api, atom, "Subjects",
+                                               "SubjectId", "Abbrev");
+          } catch (...) {
+            __asm__("nop");
+          }
+        }
+
+        try {
+          Room_Abbrev = get_data_for_atom(resp_from_api, atom, "Rooms",
+                                          "RoomId", "Abbrev");
+        } catch (...) {
+          __asm__("nop");
+        }
+
+        try {
+          Teacher_Abbrev = get_data_for_atom(resp_from_api, atom, "Teachers",
+                                             "TeacherId", "Abbrev");
+        } catch (...) {
+          __asm__("nop");
+        }
+
+        wprint_in_middle(cells[i][j], cell_height / 2, 0, cell_width,
+                         Subject_Abbrev.c_str(), COLOR_PAIR(0));
+        mvwaddwstr(cells[i][j], cell_height - 2,
+                   cell_width - wcslen(Room_Abbrev.c_str()) - 1,
+                   Room_Abbrev.c_str());
+
+        mvwaddwstr(cells[i][j], cell_height - 2, 1, Teacher_Abbrev.c_str());
+        wrefresh(cells[i][j]);
+      } catch (const std::exception &e) {
+        std::cerr << RED "[ERROR]" << RESET " " << e.what() << "\n";
+        // world's best error handling
+        __asm__("nop");
+      }
+    }
+  }
+}

src/timetable.h

@@ -0,0 +1,6 @@
+// header guard
+#ifndef _ba_ti_hg_
+#define _ba_ti_hg_
+
+void timetable_page();
+#endif

src/types.h

@@ -0,0 +1,147 @@
+// header guard
+#ifndef _ba_ty_hg_
+#define _ba_ty_hg_
+
+#include <istream>
+struct Config {
+  bool verbose = false;
+  bool ignoressl = false;
+};
+
+class LimitedInt {
+private:
+  int value;
+  const int min_value;
+  const int max_value;
+
+  void setValue(int new_value) {
+    int range = max_value - min_value + 1;
+    if (new_value < min_value || new_value > max_value) {
+      new_value = ((new_value - min_value) % range + range) % range + min_value;
+    }
+    value = new_value;
+  }
+
+public:
+  // Constructors
+  LimitedInt(int initial_value = 0, int min = std::numeric_limits<int>::min(),
+             int max = std::numeric_limits<int>::max())
+      : min_value(min), max_value(max) {
+    if (min >= max)
+      throw std::invalid_argument("Min must be less than max");
+    setValue(initial_value);
+  }
+
+  // Conversion operators
+  operator int() const { return value; } // Implicit conversion to int
+
+  // Assignment operators
+  LimitedInt &operator=(int rhs) {
+    setValue(rhs);
+    return *this;
+  }
+
+  // Compound assignment with BoundedInt
+  LimitedInt &operator+=(const LimitedInt &rhs) {
+    setValue(value + rhs.value);
+    return *this;
+  }
+
+  // Compound assignment with int
+  LimitedInt &operator+=(int rhs) {
+    setValue(value + rhs);
+    return *this;
+  }
+
+  // Similarly define -=, *=, /=, %=, &=, |=, ^=, <<=, >>= for both types
+
+  // Increment/decrement
+  LimitedInt &operator++() { // Prefix ++
+    setValue(value + 1);
+    return *this;
+  }
+
+  LimitedInt operator++(int) { // Postfix ++
+    LimitedInt temp = *this;
+    setValue(value + 1);
+    return temp;
+  }
+
+  LimitedInt &operator--() { // Prefix --
+    setValue(value - 1);
+    return *this;
+  }
+
+  LimitedInt operator--(int) { // Postfix --
+    LimitedInt temp = *this;
+    setValue(value - 1);
+    return temp;
+  }
+
+  // Binary arithmetic operators
+  friend LimitedInt operator+(const LimitedInt &lhs, const LimitedInt &rhs) {
+    LimitedInt result = lhs;
+    result += rhs;
+    return result;
+  }
+
+  friend LimitedInt operator+(const LimitedInt &lhs, int rhs) {
+    LimitedInt result = lhs;
+    result += rhs;
+    return result;
+  }
+
+  friend LimitedInt operator+(int lhs, const LimitedInt &rhs) {
+    LimitedInt result(lhs, rhs.min_value, rhs.max_value);
+    result += rhs;
+    return result;
+  }
+
+  // Similarly define -, *, /, %, &, |, ^, <<, >> for all combinations
+
+  // Unary operators
+  LimitedInt operator-() const {
+    return LimitedInt(-value, min_value, max_value);
+  }
+
+  LimitedInt operator+() const { return *this; }
+
+  // Comparison operators
+  friend bool operator==(const LimitedInt &lhs, const LimitedInt &rhs) {
+    return lhs.value == rhs.value;
+  }
+
+  friend bool operator!=(const LimitedInt &lhs, const LimitedInt &rhs) {
+    return lhs.value != rhs.value;
+  }
+
+  friend bool operator<(const LimitedInt &lhs, const LimitedInt &rhs) {
+    return lhs.value < rhs.value;
+  }
+
+  // Similarly define >, <=, >= for both BoundedInt and int comparisons
+
+  // Stream operators
+  friend std::ostream &operator<<(std::ostream &os, const LimitedInt &bi) {
+    os << bi.value;
+    return os;
+  }
+
+  friend std::istream &operator>>(std::istream &is, LimitedInt &bi) {
+    int temp;
+    is >> temp;
+    bi.setValue(temp);
+    return is;
+  }
+};
+
+struct SelectorType {
+  LimitedInt x;
+  LimitedInt y;
+
+  SelectorType(int xArg, int yArg, int min_limit_x, int max_limit_x,
+               int min_limit_y, int max_limit_y)
+      : x(xArg, min_limit_x, max_limit_x), y(yArg, min_limit_y, max_limit_y) {}
+};
+
+#endif