updated folder structure

include/shell.h

@@ -0,0 +1,141 @@
+/**
+ * shell.h
+ * Core shell functionality
+ */
+
+#ifndef SHELL_H
+#define SHELL_H
+
+#include "common.h"
+#include "structured_data.h"
+
+/**
+ * Display a welcome banner with BBQ sauce invention time
+ */
+void display_welcome_banner(void);
+
+/**
+ * Execute a command
+ *
+ * @param args Null-terminated array of command arguments
+ * @return 1 to continue the shell, 0 to exit
+ */
+int lsh_execute(char **args);
+
+/**
+ * Execute a pipeline of commands
+ *
+ * @param commands Null-terminated array of command arrays
+ * @return 1 to continue the shell, 0 to exit
+ */
+int lsh_execute_piped(char ***commands);
+
+/**
+ * Create a TableData structure from an ls command
+ *
+ * @param args Command arguments
+ * @return TableData pointer (must be freed by caller) or NULL on error
+ */
+TableData* create_ls_table(char **args);
+
+/**
+ * Parse input line into an array of commands (for pipelines)
+ *
+ * @param line Input command line
+ * @return Null-terminated array of command arrays
+ */
+char*** lsh_split_commands(char *line);
+
+/**
+ * Launch an external program
+ *
+ * @param args Null-terminated array of command arguments
+ * @return Always returns 1 (continue the shell)
+ */
+int lsh_launch(char **args);
+
+/**
+ * Main shell loop
+ */
+void lsh_loop(void);
+
+/**
+ * Free memory for a command array from lsh_split_commands
+ */
+void free_commands(char ***commands);
+
+/**
+ * Initialize the status bar at the bottom of the screen
+ *
+ * @param fd File descriptor for terminal (STDOUT_FILENO)
+ * @return 1 if successful, 0 on failure
+ */
+int init_status_bar(int fd);
+
+/**
+ * Temporarily hide the status bar before command execution
+ *
+ * @param fd File descriptor for terminal (STDOUT_FILENO)
+ */
+void hide_status_bar(int fd);
+
+/**
+ * Ensures there's space for the status bar by scrolling if needed
+ *
+ * @param fd File descriptor for terminal (STDOUT_FILENO)
+ */
+void ensure_status_bar_space(int fd);
+
+/**
+ * Check for terminal window resize and update status bar position
+ *
+ * @param fd File descriptor for terminal (STDOUT_FILENO)
+ */
+void check_console_resize(int fd);
+
+/**
+ * Update the status bar with Git information
+ *
+ * @param fd File descriptor for terminal (STDOUT_FILENO)
+ * @param git_info The Git information to display in the status bar
+ */
+void update_status_bar(int fd, const char *git_info);
+
+/**
+ * Get the name of the parent and current directories from a path
+ *
+ * @param cwd The current working directory path
+ * @param parent_dir_name Buffer to store the parent directory name
+ * @param current_dir_name Buffer to store the current directory name
+ * @param buf_size Size of the buffers
+ */
+void get_path_display(const char *cwd, char *parent_dir_name,
+                      char *current_dir_name, size_t buf_size);
+
+/**
+ * Initialize the terminal for raw mode
+ * 
+ * @param orig_termios Original terminal settings to restore later
+ * @return File descriptor for terminal
+ */
+int init_terminal(struct termios *orig_termios);
+
+/**
+ * Restore terminal to original settings
+ * 
+ * @param fd File descriptor for terminal
+ * @param orig_termios Original terminal settings
+ */
+void restore_terminal(int fd, struct termios *orig_termios);
+
+/**
+ * Get console dimensions
+ * 
+ * @param fd File descriptor for terminal
+ * @param width Pointer to store width
+ * @param height Pointer to store height
+ * @return 1 on success, 0 on failure
+ */
+int get_console_dimensions(int fd, int *width, int *height);
+
+#endif // SHELL_H