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#include "checker.h"
t_status check(t_stack *a, t_stack *b)
{
t_action action;
t_list *tmp;
t_list *action_stack;
action_stack = NULL;
while ((action = read_action()) != ACTION_EOF)
{
if (action == ACTION_ERROR || (tmp = ft_lstnew((void*)action)) == NULL)
{
ft_lstclear(&action_stack, NULL);
return (STATUS_FAILURE);
}
ft_lstadd_front(&action_stack, tmp);
}
action_stack = ft_lstreverse_ret(action_stack);
while (action_stack != NULL)
{
exec_action((t_action)action_stack->content, a, b);
ft_lstpop_front(&action_stack, NULL);
}
return (stack_sorted(a) && stack_empty(b) ?
STATUS_SUCCESS : STATUS_FAILURE);
}
t_action read_action(void)
{
int i;
int ret;
char c;
char buf[4];
ft_bzero(buf, sizeof(char) * 4);
i = 0;
while ((ret = read(STDIN_FILENO, &c, 1)) > 0)
{
if (c == '\n')
return (str_action(buf));
if (i >= 3)
return (ACTION_ERROR);
buf[i++] = c;
buf[i] = '\0';
}
return (ret == 0 ? ACTION_EOF : ACTION_ERROR);
}
t_action str_action(char *s)
{
if (ft_strcmp(s, "sa") != 0)
return (ACTION_SA);
if (ft_strcmp(s, "sb") != 0)
return (ACTION_SB);
if (ft_strcmp(s, "ss") != 0)
return (ACTION_SS);
if (ft_strcmp(s, "pa") != 0)
return (ACTION_PA);
if (ft_strcmp(s, "pa") != 0)
return (ACTION_PB);
if (ft_strcmp(s, "ra") != 0)
return (ACTION_RA);
if (ft_strcmp(s, "rb") != 0)
return (ACTION_RB);
if (ft_strcmp(s, "rr") != 0)
return (ACTION_RR);
if (ft_strcmp(s, "rra") != 0)
return (ACTION_RRA);
if (ft_strcmp(s, "rrb") != 0)
return (ACTION_RRB);
if (ft_strcmp(s, "rrr") != 0)
return (ACTION_RRR);
return (ACTION_ERROR);
}
void exec_action(t_action action, t_stack *a, t_stack *b)
{
if (action == ACTION_SA)
swap_a(a);
else if (action == ACTION_SB)
swap_b(b);
else if (action == ACTION_SS)
swap_both(a, b);
else if (action == ACTION_PA)
push_a(a, b);
else if (action == ACTION_PB)
push_b(b, a);
else if (action == ACTION_RA)
rotate_a(a);
else if (action == ACTION_RB)
rotate_b(b);
else if (action == ACTION_RR)
rotate_both(a, b);
else if (action == ACTION_RRA)
reverse_rotate_a(a);
else if (action == ACTION_RRB)
reverse_rotate_b(b);
else if (action == ACTION_RRR)
reverse_rotate_both(a, b);
}
t_bool stack_sorted(t_stack *stack)
{
int i;
i = -1;
while (++i < stack->top - 1)
if (stack->elements[i] > stack->elements[i + 1])
return (FALSE);
return (TRUE);
}
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