#include <stddef.h>
#include <string.h>
#include <assert.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <locale.h>

// Stub implementations for bindtextdomain and textdomain
char *bindtextdomain(const char *domainname, const char *dirname)
{
    assert(domainname != NULL && "bindtextdomain called with NULL domainname");
    assert(*domainname != '\0' && "bindtextdomain called with empty domainname");

    if (dirname == NULL)
    {
        static char current_dir[256] = "/usr/share/locale";
        return current_dir;
    }

    // Simulate success/failure randomly
    if (rand() % 2 == 0)
        return NULL;

    return (char *)dirname;
}

char *textdomain(const char *domainname)
{
    if (domainname == NULL)
    {
        static char current_domain[256] = "messages";
        return current_domain;
    }

    assert(*domainname != '\0' && "textdomain called with empty domainname");

    // Simulate success/failure randomly
    if (rand() % 2 == 0)
        return NULL;

    return (char *)domainname;
}

int main()
{
    char *result;

    // ===== Test setlocale =====
    
    result = setlocale(LC_ALL, NULL);
    assert(result != NULL);
    
    result = setlocale(LC_ALL, "C");
    
    result = setlocale(LC_ALL, NULL);
    assert(result != NULL);

    // ===== Test bindtextdomain =====
    
    result = bindtextdomain("myapp", NULL);
    assert(result != NULL);
    
    const char *test_dir = "/usr/local/share/locale";
    result = bindtextdomain("myapp", test_dir);
    if (result != NULL) {
        assert(result == test_dir);
    }
    
    result = bindtextdomain("myapp", NULL);
    assert(result != NULL);

    // ===== Test textdomain =====
    
    result = textdomain(NULL);
    assert(result != NULL);
    
    const char *test_domain = "myapp";
    result = textdomain(test_domain);
    if (result != NULL) {
        assert(result == test_domain);
    }
    
    result = textdomain(NULL);
    assert(result != NULL);

    return 0;
}
