Add error handling and create base for commands

3 files changed, 111 insertions, 3 deletions

diff --git a/command_handling.c b/command_handling.c
new file mode 100644
index 0000000..484c858
--- /dev/null
+++ b/command_handling.c
@@ -0,0 +1,48 @@
+#include "libft/libft.h"
+#include "push_swap.h"
+
+static int add_cmd_to_queue(t_list **cmds, enum e_pscmd cmd)
+{
+    t_list *new_elem;
+    enum e_pscmd *ptr_cmd;
+
+    ptr_cmd = malloc(sizeof(enum e_pscmd));
+    if (!ptr_cmd)
+        return 1;
+
+    new_elem = ft_lstnew(ptr_cmd);
+    if (!new_elem)
+    {
+        free(ptr_cmd);
+        return 1;
+    }
+    ft_lstadd_back(cmds, new_elem);
+    return 0;
+}
+
+void run_command(t_list **stack_a, t_list **stack_b, t_list **cmds, enum e_pscmd cmd)
+{
+    if (cmd == SA)
+        ;
+    else if (cmd == SB)
+        ;
+    else if (cmd == SS)
+        ;
+    else if (cmd == PA)
+        ;
+    else if (cmd == PB)
+        ;
+    else if (cmd == RA)
+        ;
+    else if (cmd == RB)
+        ;
+    else if (cmd == RR)
+        ;
+    else if (cmd == RRA)
+        ;
+    else if (cmd == RRB)
+        ;
+    else if (cmd == RRR)
+        ;
+    add_cmd_to_queue(cmds, cmd);
+}
diff --git a/main.c b/main.c
index 2643ec2..e9a96e1 100644
--- a/main.c
+++ b/main.c
@@ -6,7 +6,7 @@
 /*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/04/12 17:03:30 by dkaiser           #+#    #+#             */
-/*   Updated: 2024/04/12 18:49:56 by dkaiser          ###   ########.fr       */
+/*   Updated: 2024/04/12 18:55:38 by dkaiser          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -23,11 +23,17 @@ int	main(int argc, char *argv[])
 	t_list	*stack_a;
 
 	stack_a = create_stack(argc, argv);
-	ft_lstiter(stack_a, print_content);
 	if (!stack_a)
-		return 1; // TODO: Print error message
+	{
+		ft_putendl_fd("Error", 2);
+		return 1;
+	}
+
+	ft_lstiter(stack_a, print_content);
 
 	// TODO: Sort stack
 	// TODO: Optimize commands
 	// TODO: Print commands
+
+	return 0;
 }
diff --git a/stack_utils.c b/stack_utils.c
new file mode 100644
index 0000000..7a22b47
--- /dev/null
+++ b/stack_utils.c
@@ -0,0 +1,54 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   stack_utils.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/04/12 20:31:30 by dkaiser           #+#    #+#             */
+/*   Updated: 2024/04/12 20:50:17 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft/libft.h"
+#include "push_swap.h"
+
+void	stack_swap(t_list **stack)
+{
+	t_list	*first_elem;
+
+	first_elem = *stack;
+	*stack = (*stack)->next;
+	first_elem->next = (*stack)->next;
+	(*stack)->next = first_elem;
+}
+
+void	stack_push(t_list **dst_stack, t_list **src_stack)
+{
+	t_list	*elem;
+
+	elem = *src_stack;
+	*src_stack = elem->next;
+	ft_lstadd_front(dst_stack, elem);
+}
+
+void	stack_rotate(t_list **stack)
+{
+	t_list	*first_elem;
+
+	first_elem = *stack;
+	*stack = (*stack)->next;
+	first_elem->next = NULL;
+	ft_lstlast(*stack)->next = first_elem;
+}
+
+void	stack_rrotate(t_list **stack)
+{
+    t_list *first_elem;
+
+    first_elem = *stack;
+    while((*stack)->next->next)
+        *stack = (*stack)->next;
+    (*stack)->next->next = first_elem;
+    (*stack)->next = NULL;
+}