#include <stdlib.h>

#include "functions.h"
#include "../linked_list/linked_list.h"
#include "../linked_list/linked_list.c"


/**
 * Creates a function.
 * 
 * @param char * to the name of the function
 * @param nodeInfo * to statement list
 * @return nodeInfo * to head
 */
node_info *create_function(char *pName,  node_info *pStmts) {
    
    node_info *newNode = malloc(sizeof(node_info));
    newNode->type = FUNCTION;
    newNode->name = pName;
    newNode->_function_body = malloc(sizeof(node_info));
    newNode->_function_body->next = copy_linked_list(pStmts);
    _free_linked_list(pStmts);
    return newNode;
    
}

/**
 * Creates a function
 *
 * @param name of the function
 * @return a node_info pointer to the head of the function
 */
node_info *create_function_call(char *pName) {
    
    node_info *newNode = malloc(sizeof(node_info));
    newNode->type = FUNCTION_CALL;
    newNode->name = pName;
    newNode->next = NULL;
    return newNode;
}

/**
 * Creates a linked list inside of a linked list
 *
 * @param new_statement_list to be appended to list
 * @param statement_head of linked list to append to
 */
node_info *create_compound_statement(node_info *new_statement_list, node_info *statement_head) {
    
    if(statement_head == NULL) {
        statement_head = malloc(sizeof(node_info));
        
        node_info *newNode = malloc(sizeof(node_info));
        
        statement_head->opperation = 5;
        statement_head->next = new_statement_list;
        statement_head->next->next = NULL;
        statement_head->statement_list = NULL;
        
    } else {
        
        node_info *p = statement_head; //make a temp of list head, so we can traverse it.
        //TODO update with doubly linked list
        while(p->statement_list != NULL)
            p = p->statement_list;
        
        p->next = malloc(sizeof(node_info));
        p->next = new_statement_list;
        p->next->next = NULL;
        
    }
    return statement_head;
    
}