namespace DTLib.Console;

public static class ColoredConsole
{
    public static int Width => System.Console.WindowWidth;
    public static int Height => System.Console.WindowHeight;
    
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static void Fg(ConsoleColor color) => System.Console.ForegroundColor = color;

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static void Bg(ConsoleColor color) => System.Console.BackgroundColor = color;

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static void ResetColor() => System.Console.ResetColor();
    
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static void Clear()
    {
        ResetColor();
        System.Console.Clear();
    }

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static void Write(char c) => System.Console.Write(c);

    public static void Write(string msg, ConsoleColor? fg = null, ConsoleColor? bg = null)
    {
        if(fg != null) Fg(fg.Value);
        if(bg != null) Bg(bg.Value);
#if NETSTANDARD2_0
        var chars = msg.ToCharArray();
#else
        var chars = msg.AsSpan();
#endif
        for (int i = 0; i < chars.Length; ++i)
        {
            Write(chars[i]);
        }
    }

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static void WriteLine() => Write('\n');

    public static void WriteLine(string msg, ConsoleColor? fg = null, ConsoleColor? bg = null)
    {
        Write(msg, fg, bg);
        WriteLine();
    }

    public static string? ReadLine(string query, ConsoleColor? fg = null, ConsoleColor? bg = null)
    {
        Write(query, fg, bg);
        Write(':');
        Write(' ');
        return System.Console.ReadLine();
    }
    
    public static void WriteHLine(char c, ConsoleColor? fg = null, ConsoleColor? bg = null)
    {
        WriteLine(c.Multiply(Width - 1), fg, bg);
    }
    
    public static void WriteTitle(string title, char spacing = '-', 
        string left_framing = "[", string right_framing = "]",
        ConsoleColor? fg = null, ConsoleColor? bg = null)
    {
        int both_spacing_length = Width - title.Length - left_framing.Length - right_framing.Length - 1;
        int left_spacing_length = both_spacing_length / 2;
        int right_spacing_length = left_spacing_length + both_spacing_length % 2;

        var b = new StringBuilder();
        if(left_spacing_length > 0)
            b.Append(spacing.Multiply(left_spacing_length));
        b.Append(left_framing);
        b.Append(title);
        b.Append(right_framing);
        if(right_spacing_length > 0)
            b.Append(spacing.Multiply(right_spacing_length));
        
        WriteLine(b.ToString(), fg, bg);
    }

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static void WriteCentred(string title, ConsoleColor? fg = null, ConsoleColor? bg = null)
    {
        WriteTitle(title, ' ', "", "", fg, bg);
    }
}