added another

todo_app/include/todo.h

@@ -0,0 +1,106 @@
+#ifndef TODO_H
+#define TODO_H
+
+#include <unistd.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+// Define necessary constants
+#define MAX_TASKS 100
+#define MAX_TITLE_LEN 256
+#define MAX_CATEGORY_LEN 50
+#define MAX_DATE_LEN 12  // Adjusted to fit YYYY-MM-DD format with null terminator
+#define MAX_RECURRENCE_LEN 10  // Define MAX_RECURRENCE_LEN for recurrence string length
+#define LOCAL_FILE_PATH ".local/share/todo/tasks.txt"
+#define NO_DUE_DATE "N/A"  // Custom marker for no due date
+
+// Function to get the database path, either global or local
+static char *get_database_path() {
+    static char file_path[512];  // To store the resolved path
+
+    // Check if the program is running from a global location by checking if /usr/local/bin/todo exists
+    if (access("/usr/local/bin/todo", F_OK) == 0) {
+        // Use global path, ensure ~/.local/share/todo/tasks.txt exists
+        char *home = getenv("HOME");
+        snprintf(file_path, sizeof(file_path), "%s/%s", home, LOCAL_FILE_PATH);
+
+        // Ensure the directory exists, create it if not
+        char dir_path[512];
+        snprintf(dir_path, sizeof(dir_path), "%s/.local/share/todo", home);
+        if (access(dir_path, F_OK) != 0) {
+            mkdir(dir_path, 0755);  // Create the directory with appropriate permissions
+        }
+
+        // Check if the tasks.txt file exists, create if not
+        if (access(file_path, F_OK) != 0) {
+            int fd = open(file_path, O_CREAT | O_RDWR, 0644);  // Create file with read/write for owner, read for others
+            if (fd != -1) {
+                close(fd);  // Close the file after creating it
+            }
+        }
+    } else {
+        // Local path for users without global installation
+        snprintf(file_path, sizeof(file_path), "%s/%s", getenv("HOME"), LOCAL_FILE_PATH);
+        
+        // Ensure the directory exists, create it if not
+        char dir_path[512];
+        snprintf(dir_path, sizeof(dir_path), "%s/.local/share/todo", getenv("HOME"));
+        if (access(dir_path, F_OK) != 0) {
+            mkdir(dir_path, 0755);  // Create directory if it doesn't exist
+        }
+
+        // Create tasks.txt file if it doesn't exist
+        if (access(file_path, F_OK) != 0) {
+            int fd = open(file_path, O_CREAT | O_RDWR, 0644);  // Create file
+            if (fd != -1) {
+                close(fd);  // Close file after creating it
+            }
+        }
+    }
+
+    return file_path;
+}
+
+// Task structure definition
+typedef struct {
+    int id;
+    char title[MAX_TITLE_LEN];
+    char category[MAX_CATEGORY_LEN];
+    char due_date[MAX_DATE_LEN];
+    char recurrence[MAX_RECURRENCE_LEN];  // Recurrence interval (e.g., "daily", "weekly")
+    int priority;
+    int completed;
+} Task;
+
+// Function prototypes
+void add_task(Task tasks[], int *count, const char *title, const char *category, const char *due_date, const char *recurrence, int priority);
+void remove_task(Task tasks[], int *count, int index);  // Changed to accept index
+void edit_task(Task *task);
+void load_tasks(Task tasks[], int *count);
+void save_tasks(Task tasks[], int count);
+void display_tasks(Task tasks[], int count, int selected);
+void search_task(Task tasks[], int count, int *selected_task);
+
+// Sorting function updated to include boolean for ascending/descending order
+void sort_tasks(Task tasks[], int count, char sort_type, bool ascending);
+
+// Input handling
+void get_input(char *buffer, int size, const char *prompt);
+void get_input_and_clear(char *buffer, int size, const char *prompt);
+
+// ncurses management
+void init_ncurses();
+void cleanup_ncurses();
+
+// Task status manipulation
+void toggle_task_completion(Task *task);
+void update_task_recurrence(Task *task);
+
+// Utility functions
+int is_task_overdue(Task task);
+int is_task_due_soon(Task task);
+
+#endif