#include "test.h"
#include "log.h"
#include <string.h>
#include <stdlib.h>
#include "util.h"

static char* s_lastLoggedError = NULL;

static void mock_log(const char* msg) {
    free(s_lastLoggedError);
    s_lastLoggedError = format_string("%s", msg ? msg : "");
}

static void test_log_error(void) {
    log_set_output(mock_log);

    free(s_lastLoggedError);
    s_lastLoggedError = NULL;
    log_error("test error message");

    assert_str("test error message", s_lastLoggedError, "expected 'test error message'");

    log_set_output(NULL); // Reset to default
    free(s_lastLoggedError);
    s_lastLoggedError = NULL;
}

static void test_log_on_line(void) {
    Location loc = {
        .filename = "v0/tests/log_on_line.c2",
        .line_text = { "int main() []", 13 },
        .line = 1,
        .column_start = 12,
        .column_end = 13
    };

    log_on_line(&loc, 13, "unexpected token");
    assert_log_file("expected formatted error message");
}

static void test_log_on_line_variadic(void) {
    Location loc = {
        .filename = "v0/tests/log_on_line_variadic.c2",
        .line_text = { "int main() []", 13 },
        .line = 1,
        .column_start = 12,
        .column_end = 13
    };

    log_on_line(&loc, 13, "unexpected token '%c'", 'x');
    assert_log_file("expected formatted error message with variadic args");
}