Enhance database management and TUI functionality: update person data in CSV, add edit and delete options in TUI, and improve mutex handling in user functions.

TestList.csv

@@ -1,19 +1,17 @@
 1,Klara,Novotna,3010,1,0,0
 2,Jan,Novak,3011,1,0,0
-3,Petr,Horak,3012,1,0,0
 4,Lucie,Kralova,3013,1747515862,416,0
-5,Martin,Prochazka,3014,1,0,0
 6,Anna,Urbanova,3015,1747515857,0,1
-7,David,Svoboda,3016,1,0,0
+7,David,Svoboda,3016,1747519032,0,1
 8,Veronika,Kucerova,3017,1,0,0
-9,Tomas,Blaha,3018,1747515450,0,1
+9,Tomas,Blaha,3018,1747518718,3268,0
 10,Barbora,Kratochvilova,3019,1,0,0
 11,Jakub,Pospisil,3020,1747515462,0,1
-12,Eliska,Valkova,3021,1,0,0
+12,Eliska,Valkova,3021,1747518666,0,1
 13,Ondrej,Stepanek,3022,1747515457,0,1
 14,Simona,Holubova,3023,1747515453,0,1
 15,Filip,Navratil,3024,1,0,0
-16,Adela,Slavikova,3025,1,0,0
+16,Adela,Slavikova,3025,1747518672,0,1
 17,Radek,Polak,3026,1,0,0
 18,Monika,Adamcova,3027,1,0,0
 19,Jaroslav,Kolar,3028,1,0,0
@@ -30,3 +28,7 @@
 30,Marketa,Rezacova,3039,1,0,0
 31,Libor,Hanak,3040,1,0,0
 32,Libor,Hanak,3040,1,0,0
+17267,Kamil,Novacek,2502,0,0,0
+17747,Kamil,Franta,2502,0,0,0
+17767,Kamil,Filip,2502,0,0,0
+9158,Jindrich,Sidlo,2440,0,0,0

src/main.c

@@ -55,6 +55,7 @@ int main(int argc, char const **argv)
         puts("Corrupted and/or empty list. Exiting...\n");
         return EXIT_FAILURE;
     }
+    pthread_mutex_unlock(&person_list.lock);
 
     noecho();
     noraw();
@@ -118,6 +119,7 @@ int main(int argc, char const **argv)
 
     pthread_join(uart_thread, NULL);
     free(args);
+    pthread_mutex_destroy(&person_list.lock);
 
     clear();
     endwin();

src/tui.c

@@ -216,6 +216,10 @@ void mainMenu(list_t *person_list, char *db_filename, int terminal_x, int termin
             case 1:
                 personSearch(person_list, terminal_x, terminal_y);
                 break;
+
+            case 2:
+                editDatabaseMenu(person_list, terminal_x, terminal_y);
+                break;
             case 3:
                 if (!saveListToCSV(db_filename, person_list))
                     dialogWindow(3, "Unknown error while saving.", terminal_x, terminal_y);
@@ -249,7 +253,7 @@ void mainMenu(list_t *person_list, char *db_filename, int terminal_x, int termin
 
 void personListing(list_t *person_list, int terminal_x, int terminal_y)
 {
-    int win_height = 20;
+    int win_height = 22;
     int win_width = 76;
     int start_y = (terminal_y - win_height) / 2;
     int start_x = (terminal_x - win_width) / 2;
@@ -279,10 +283,9 @@ void personListing(list_t *person_list, int terminal_x, int terminal_y)
 
         current = person_list->head;
         int idx = 0, row = 2;
-        while (current && row < win_height)
+        while (current && row < win_height -1)
         {
-
+            if (idx >= offset)
-            if (idx >= offset && row < win_height - 1)
             {
                 if (idx == highlight)
                     wattron(personlisting, COLOR_PAIR(2));
@@ -299,6 +302,7 @@ void personListing(list_t *person_list, int terminal_x, int terminal_y)
             current = current->next;
         }
         
+
         wrefresh(personlisting);
 
         keyboard_input = wgetch(personlisting);
@@ -489,10 +493,7 @@ void personInfo(list_t *_list, node_t *_person, int terminal_x, int terminal_y)
 
     WINDOW *personinfodialog = newwin(win_height, win_width, start_y, start_x);
 
-    int max_rows = win_height - 2;
+    char buttons[3][20] = {"<Print to file>", "<Add Time Event>", "<Back>"};
-    int total_count = 0;
-
-    char buttons[3][20] = {"<Print to file...>", "<Add Time Event>", "<Back>"};
     char prompts[6][32] = {"Name", "Surname", "Department", "Last time event", "Total time", "Available"};
 
     char keyboard_input;
@@ -500,8 +501,7 @@ void personInfo(list_t *_list, node_t *_person, int terminal_x, int terminal_y)
 
     int field_y = 2;
     int field_x = 4;
-    int button_y = field_y + 15;
+
-    int button_x = field_x;
 
     while (1)
     {
@@ -556,7 +556,10 @@ void personInfo(list_t *_list, node_t *_person, int terminal_x, int terminal_y)
         {
             if (highlight == 0)
             {
-                exportPersonInfo(_person);
+                if (exportPersonInfo(_person))
+                    dialogWindow(1, "Export succesfully created", terminal_x, terminal_y);
+                else
+                    dialogWindow(3, "Unknown error", terminal_x, terminal_y);
             }
             else if (highlight == 1)
             {
@@ -686,14 +689,274 @@ int exportDialog(list_t *_list, int terminal_x, int terminal_y)
 
 void editDatabaseMenu(list_t *_person_list, int terminal_x, int terminal_y)
 {
+
+    int win_height = 10;
+    int win_width = 50;
+    int start_y = (terminal_y - win_height) / 2;
+    int start_x = (terminal_x - win_width) / 2;
+
+    char choices[4][30] = {"Add person to database", "Remove person from database", "Log time event", "Back"};
+
+    char keyboard_input;
+    int highlight = 0;
+
+    start_color();
+
+    WINDOW *mainmenu = newwin(win_height, win_width, start_y, start_x);
+
+    while (1)
+    {
+        initWindow(mainmenu, win_width, terminal_x, terminal_y, STANDARD_WIN_COLOUR, "Database Editing");
+        for (int i = 0; i < 6; i++)
+        {
+            if (i == highlight)
+                wattron(mainmenu, COLOR_PAIR(2));
+            else
+                wattron(mainmenu, COLOR_PAIR(1));
+            wattron(mainmenu, A_BOLD);
+            mvwprintw(mainmenu, 2 + i, (win_width - strlen(choices[i])) / 2, "%s", choices[i]);
+            wattroff(mainmenu, A_BOLD);
+
+            if (i == highlight)
+                wattroff(mainmenu, COLOR_PAIR(2));
+            else
+                wattroff(mainmenu, COLOR_PAIR(1));
+        }
+        wrefresh(mainmenu);
+        flushinp();
+        keyboard_input = wgetch(mainmenu);
+
+        if (keyboard_input == '\t')
+        {
+            if (highlight < 3)
+                highlight++;
+            else
+                highlight = 0;
+        }
+
+        else if (keyboard_input == '\n')
+        {
+            switch (highlight)
+            {
+            case 0:
+                addPersonDialog(_person_list, terminal_x, terminal_y);
+                break;
+            case 1:
+                deletePersonDialog(_person_list, terminal_x, terminal_y);
+                break;
+            case 2:
+                dialogWindow(2, "You can add time event for existing user from main menu", terminal_x, terminal_y);
+                break;
+            case 3:
+                if (keyboard_input == '\n')
+                {
+                    wclear(mainmenu);
+                    wrefresh(mainmenu);
+                    touchwin(stdscr);
+                    refresh();
+                    delwin(mainmenu);
+                    refresh();
+                    return;
+                }
+                break;
+            }
+        }
+    }
 }
 
 void addPersonDialog(list_t *_person_list, int terminal_x, int terminal_y)
 {
+    int win_height = 14;
+    int win_width = 60;
+    int start_y = (terminal_y - win_height) / 2;
+    int start_x = (terminal_x - win_width) / 2;
 
+    WINDOW *addwin = newwin(win_height, win_width, start_y, start_x);
+    initWindow(addwin, win_width, terminal_x, terminal_y, STANDARD_WIN_COLOUR, "Add Person");
+
+    char name[32] = "";
+    char surname[32] = "";
+    char department[8] = "";
+    int highlight = 0;
+    char *fields[3] = {name, surname, department};
+    int field_lens[3] = {31, 31, 7};
+    char *prompts[3] = {"Name", "Surname", "Department"};
+    char *buttons[2] = {"<Add>", "<Back>"};
+
+    while (1)
+    {
+        werase(addwin);
+        initWindow(addwin, win_width, terminal_x, terminal_y, STANDARD_WIN_COLOUR, "Add Person");
+
+        for (int i = 0; i < 3; i++)
+        {
+            if (highlight == i)
+                wattron(addwin, COLOR_PAIR(2));
+            else
+                wattron(addwin, COLOR_PAIR(1));
+            mvwprintw(addwin, 2 + i * 2, 4, "%s: [%s]", prompts[i], fields[i][0] ? fields[i] : "______________________________");
+            if (highlight == i)
+                wattroff(addwin, COLOR_PAIR(2));
+            else
+                wattroff(addwin, COLOR_PAIR(1));
+        }
+
+        for (int i = 0; i < 2; i++)
+        {
+            if (highlight == 3 + i)
+                wattron(addwin, COLOR_PAIR(2) | A_BOLD);
+            else
+                wattron(addwin, COLOR_PAIR(1) | A_BOLD);
+            mvwprintw(addwin, 10, 4 + i * 16, "%s", buttons[i]);
+            if (highlight == 3 + i)
+                wattroff(addwin, COLOR_PAIR(2) | A_BOLD);
+            else
+                wattroff(addwin, COLOR_PAIR(1) | A_BOLD);
+        }
+
+        wrefresh(addwin);
+
+        int ch = wgetch(addwin);
+        if (ch == '\t')
+        {
+            highlight = (highlight + 1) % 5;
+        }
+        else if (ch == '\n')
+        {
+            if (highlight < 3)
+            {
+                echo();
+                curs_set(1);
+                mvwprintw(addwin, 2 + highlight * 2, 7 + strlen(prompts[highlight]), "%-30s", "");
+                wmove(addwin, 2 + highlight * 2, 7 + strlen(prompts[highlight]));
+                wgetnstr(addwin, fields[highlight], field_lens[highlight]);
+                curs_set(0);
+                noecho();
+            }
+            else if (highlight == 3)
+            {
+                if (strlen(name) == 0 || strlen(surname) == 0 || strlen(department) == 0)
+                {
+                    dialogWindow(3, "All fields must be filled.", terminal_x, terminal_y);
+                    continue;
+                }
+                if (addPersonToList(_person_list, name, surname, atoi(department)))
+                {
+                    dialogWindow(1, "Person added successfully.", terminal_x, terminal_y);
+                }
+                else
+                {
+                    dialogWindow(3, "Failed to add person.", terminal_x, terminal_y);
+                }
+                delwin(addwin);
+                touchwin(stdscr);
+                refresh();
+                return;
+            }
+            else if (highlight == 4)
+            {
+                delwin(addwin);
+                touchwin(stdscr);
+                refresh();
+                return;
+            }
+        }
+        else if (ch == 27 || ch == 'q')
+        {
+            delwin(addwin);
+            touchwin(stdscr);
+            refresh();
+            return;
+        }
+    }
 }
 
 void deletePersonDialog(list_t *_person_list, int terminal_x, int terminal_y)
 {
+    int win_height = 8;
+    int win_width = 50;
+    int start_y = (terminal_y - win_height) / 2;
+    int start_x = (terminal_x - win_width) / 2;
 
+    WINDOW *delwin_dialog = newwin(win_height, win_width, start_y, start_x);
+    initWindow(delwin_dialog, win_width, terminal_x, terminal_y, STANDARD_WIN_COLOUR, "Delete Person");
+
+    char prompt[] = "Enter UUID of person to delete:";
+    char input[16] = "";
+    int highlight = 0;
+    int button_x = (win_width - 7) / 2;
+    int text_x = (win_width - 18) / 2;
+
+    while (1)
+    {
+        werase(delwin_dialog);
+        initWindow(delwin_dialog, win_width, terminal_x, terminal_y, STANDARD_WIN_COLOUR, "Delete Person");
+
+        mvwprintw(delwin_dialog, 2, (win_width - strlen(prompt)) / 2, "%s", prompt);
+
+        if (highlight == 0)
+            wattron(delwin_dialog, COLOR_PAIR(2));
+        else
+            wattron(delwin_dialog, COLOR_PAIR(1));
+        mvwprintw(delwin_dialog, 4, text_x, "[%15s]", input);
+        if (highlight == 0)
+            wattroff(delwin_dialog, COLOR_PAIR(2));
+        else
+            wattroff(delwin_dialog, COLOR_PAIR(1));
+
+        if (highlight == 1)
+            wattron(delwin_dialog, COLOR_PAIR(2) | A_BOLD);
+        else
+            wattron(delwin_dialog, COLOR_PAIR(1) | A_BOLD);
+        mvwprintw(delwin_dialog, 6, button_x, "<Delete>");
+        if (highlight == 1)
+            wattroff(delwin_dialog, COLOR_PAIR(2) | A_BOLD);
+        else
+            wattroff(delwin_dialog, COLOR_PAIR(1) | A_BOLD);
+
+        wrefresh(delwin_dialog);
+
+        int ch = wgetch(delwin_dialog);
+        if (ch == '\t')
+        {
+            highlight = !highlight;
+        }
+        else if (ch == '\n')
+        {
+            if (highlight == 0)
+            {
+                echo();
+                curs_set(1);
+                mvwprintw(delwin_dialog, 4, text_x + 1, "%-15s", "");
+                wmove(delwin_dialog, 4, text_x + 1);
+                wgetnstr(delwin_dialog, input, 15);
+                curs_set(0);
+                noecho();
+            }
+            else if (highlight == 1)
+            {
+                uint16_t uuid = (uint16_t)atoi(input);
+                node_t *for_delete = searchPersonByUUID(_person_list, uuid);
+                if (removePersonFromList(_person_list, &for_delete))
+                {
+                    dialogWindow(1, "Person deleted successfully.", terminal_x, terminal_y);
+                }
+                else
+                {
+                    dialogWindow(3, "Person not found.", terminal_x, terminal_y);
+                }
+                delwin(delwin_dialog);
+                touchwin(stdscr);
+                refresh();
+                return;
+            }
+        }
+        else if (ch == 27 || ch == 'q')
+        {
+            delwin(delwin_dialog);
+            touchwin(stdscr);
+            refresh();
+            return;
+        }
+    }
 }

src/users.c

@@ -15,12 +15,11 @@ uint16_t generateUUID(
 {
     uint16_t uuid;
     int found;
+    pthread_mutex_lock(&_list->lock);
     do
     {
         found = 0;
         uuid = (uint16_t)(rand() % (UINT16_MAX + 1));
-
-        pthread_mutex_lock(&_list->lock);
         node_t *current = _list->head;
         while (current != NULL)
         {
@@ -60,7 +59,8 @@ uint16_t searchUUIDByName(list_t *_list, char *_name, char *_surname, uint16_t *
 {
     uint16_t sum = 0;
     uint16_t *uuids = malloc(sizeof(uint16_t));
-    if (uuids == NULL) {
+    if (uuids == NULL)
+    {
         *_uuids_found = NULL;
         return 0;
     }
@@ -127,7 +127,7 @@ int addPersonToList(
     strcpy(new_node->user.name, _name);
     strcpy(new_node->user.surname, _surname);
     new_node->user.department = _department;
-    new_node->user.last_time_event = -255;
+    new_node->user.last_time_event = 0;
     new_node->user.total = 0;
     new_node->user.available = FALSE;
 
@@ -166,7 +166,8 @@ int loadPersonToList(list_t *_list, uint16_t _uuid, char *_name, char *_surname,
     if (_list->head == NULL)
     {
         _list->head = (node_t *)malloc(sizeof(node_t));
-        if (_list->head == NULL) {
+        if (_list->head == NULL)
+        {
             pthread_mutex_unlock(&_list->lock);
             return 0;
         }
@@ -236,7 +237,6 @@ int loadPersonToList(list_t *_list, uint16_t _uuid, char *_name, char *_surname,
     }
     current->next = new_node;
     pthread_mutex_unlock(&_list->lock);
-
     return 1;
 }
 
@@ -254,7 +254,8 @@ int addTimeEvent(
     pthread_mutex_lock(&_list->lock);
     if (_person->user.available)
     {
-        if (current_time > _person->user.last_time_event) {
+        if (current_time > _person->user.last_time_event)
+        {
             _person->user.total += (current_time - _person->user.last_time_event);
         }
     }
@@ -291,6 +292,7 @@ int removePersonFromList(list_t *_list, node_t **_person)
             free(current->user.surname);
             free(current);
             *_person = NULL;
+            pthread_mutex_unlock(&_list->lock);
             return 1;
         }
         prev = current;