#include "str.h"

void str_init(str_t* self)
{
    assert(self);
    self->size = 0;
    self->capacity = 0;
    self->value = NULL;
}

void str_free(str_t* self)
{
    assert(self);

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

ssize_t str_find(str_t* self, char c)
{
    assert(self);

    for (size_t i=0; i<self->size; i++)
    {
        if (self->value[i] == c)
        {
            return i;
        }
    }

    return -1;
}

void str_push(str_t* self, char c)
{
    assert(self);

    if (self->value == NULL)
    {
        self->capacity = 1;
        self->value = malloc(sizeof(char) * self->capacity);
    }

    if (self->size + 2 >= self->capacity)
    {
        self->capacity *= 2;
        self->value = realloc(
            self->value,
            sizeof(char) * self->capacity
        );
    }

    self->value[self->size] = c;
    self->size++;
    self->value[self->size] = '\0';
}

void str_push_cstr(str_t* self, char const* rhs)
{
    assert(self);
    assert(rhs);

    for (size_t i=0; i<strlen(rhs); i++)
    {
        str_push(self, rhs[i]);
    }
}