#include "node.h"

CCM_ENUM_C(NodeKind, NODE_KIND);

void node_init(node_t* self,
               NodeKind kind,
               char const* value,
               int line)
{
    assert(self);
    self->line = line;
    self->kind = kind;
    vec_init(&self->children);

    if (value)
    {
        self->value = strdup(value);
    }
}

void node_free(node_t* self)
{
    assert(self);
    vec_free_elements(&self->children, (void*) node_free);
    vec_free(&self->children);

    if (self->value)
    {
        free(self->value);
        self->value = NULL;
    }
}

void node_push_new_child(node_t* self, node_t* child)
{
    assert(self);
    assert(child);

    vec_push(&self->children, child);
}

size_t node_str(node_t* self, char* buffer, size_t size)
{
    assert(self);
    size_t sz = 0;

    sz += snprintf(
        buffer + sz, size - sz, "%s",
        NodeKindStr[self->kind] + strlen("NODE_")
    );

    if (strlen(self->value) > 0)
    {
        sz += snprintf(buffer + sz, size - sz, "[%s]", self->value);
    }

    if (self->children.size > 0)
    {
        sz += snprintf(buffer + sz, size - sz, "(");

        for (size_t i=0; i<self->children.size; i++)
        {
            if (i > 0)
            {
                sz += snprintf(buffer + sz, size - sz, ",");
            }
            sz += node_str(
                self->children.data[i],
                buffer + sz, size - sz
            );
        }

        sz += snprintf(buffer + sz, size - sz, ")");
    }

    return sz;
}