use modules::cursor::winapi_cursor::WinApiCursor;
use modules::cursor::ansi_cursor::AnsiCursor;

use modules::cursor::ITerminalCursor;

use Screen;

/* ======================== WinApi =========================== */
#[cfg(windows)]
mod winapi_tests {
    use super::*;

    #[test]
    fn goto_winapi()
    {
        let screen = Screen::default();
        let cursor = WinApiCursor::new();

        cursor.goto(5, 5, &screen.stdout);
        let (x, y) = cursor.pos(&screen.stdout);

        assert_eq!(x, 5);
        assert_eq!(y, 5);
    }

    #[test]
    fn reset_safe_winapi()
    {
        let screen = Screen::default();
        let cursor = WinApiCursor::new();
        let (x, y) = cursor.pos(&screen.stdout);

        cursor.save_position(&screen.stdout);
        cursor.goto(5, 5, &screen.stdout);
        cursor.reset_position(&screen.stdout);

        let (x_saved, y_saved) = cursor.pos(&screen.stdout);

        assert_eq!(x, x_saved);
        assert_eq!(y, y_saved);
    }
}

/* ======================== ANSI =========================== */
#[test]
fn reset_safe_ansi()
{
    if try_enable_ansi() {
        let screen = Screen::default();
        let cursor = AnsiCursor::new();
        let (x, y) = cursor.pos(&screen.stdout);

        cursor.save_position(&screen.stdout);
        cursor.goto(5, 5,&screen.stdout);
        cursor.reset_position(&screen.stdout);

        let (x_saved, y_saved) = cursor.pos(&screen.stdout);

        assert_eq!(x, x_saved);
        assert_eq!(y, y_saved);
    }
}

#[test]
fn goto_ansi()
{
    if try_enable_ansi() {
        let screen = Screen::default();
        let cursor = AnsiCursor::new();

        cursor.goto(5, 5, &screen.stdout);
        let (x, y) = cursor.pos(&screen.stdout);

        assert_eq!(x, 5);
        assert_eq!(y, 5);
    }
}


fn try_enable_ansi() -> bool
{
    if cfg!(target_os = "windows") {
        #[cfg(windows)]
        use kernel::windows_kernel::ansi_support::try_enable_ansi_support;

        if !try_enable_ansi_support()
            { return false; }
    }

    return true;
}