#define _POSIX_C_SOURCE 200809L

#include <assert.h>

#include <fcntl.h>

#include <sys/wait.h>

#include <unistd.h>

#define main swmctl_program_main

#include "swmctl.c"

#undef main

static void expect_invalid_color(const char *value) {

    pid_t child = fork();

    int   status;

    assert(child >= 0);

    if (!child) {

        int nullfd = open("/dev/null", O_WRONLY);

        assert(nullfd >= 0);

        assert(dup2(nullfd, STDERR_FILENO) >= 0);

        close(nullfd);

        parse_color(value);

        _exit(EXIT_SUCCESS);

    }

    assert(waitpid(child, &status, 0) == child);

    assert(WIFEXITED(status));

    assert(WEXITSTATUS(status) == EXIT_FAILURE);

}

/* Verify active-window updates and single-line title output. */

static void test_active_window_events(void) {

    event_window_t first       = { .title = "one", .active = true, .ready = true };

    event_window_t second      = { .title = "two", .ready = true };

    char           output[128] = { 0 };

    FILE          *capture     = tmpfile();

    int            saved;

    assert(capture && fflush(stdout) == 0);

    saved = dup(STDOUT_FILENO);

    assert(saved >= 0 && dup2(fileno(capture), STDOUT_FILENO) >= 0);

    wl_list_init(&event_windows);

    wl_list_insert(event_windows.prev, &first.link);

    wl_list_insert(event_windows.prev, &second.link);

    publish_active_window();

    publish_active_window();

    second.title = "renamed";

    publish_active_window();

    first.title = "one\nchanged";

    first.ready = false;

    publish_active_window();

    first.ready = true;

    publish_active_window();

    first.active  = false;

    second.active = true;

    publish_active_window();

    second.active = false;

    publish_active_window();

    assert(dup2(saved, STDOUT_FILENO) >= 0);

    close(saved);

    rewind(capture);

    assert(fread(output, 1, sizeof(output) - 1, capture) > 0);

    assert(!strcmp(output, "one\none changed\nrenamed\n\n"));

    fclose(capture);

}

int main(void) {

    char  escaped[64] = {};

    FILE *stream      = tmpfile();

    assert(stream);

    print_window_field(stream, "title\x1b[2J");

    rewind(stream);

    assert(fread(escaped, 1, sizeof(escaped) - 1, stream) > 0);

    assert(!strcmp(escaped, "title\\x1b[2J"));

    assert(fclose(stream) == 0);

    assert(parse_color("#012345") == 0x012345ff);

    assert(parse_color("#01234567") == 0x01234567);

    expect_invalid_color("# 12345");

    expect_invalid_color("#+12345");

    test_active_window_events();

    return EXIT_SUCCESS;

}