using System;

using YesNt.Interpreter.Attributes;
using YesNt.Interpreter.Enums;
using YesNt.Interpreter.Runtime;
using YesNt.Interpreter.Utilities;

namespace YesNt.Interpreter.Statements;

internal class PredefinedVariableStatements : StatementRuntimeInformation
{
    private readonly Random random = new Random();

    [Statement("%time", SearchMode.Contains, SpaceAround.None, ConsoleColor.Blue, KeepStatementInArgs = true, Priority = Priority.Highest)]
    public void GetUnixTimestamp(string args)
    {
        args = args.Replace("%time", DateTimeOffset.Now.ToUnixTimeSeconds().ToString());

        RuntimeInfo.CurrentLine = args.TrimEnd();
    }

    [Statement("%os", SearchMode.Contains, SpaceAround.None, ConsoleColor.Blue, KeepStatementInArgs = true, Priority = Priority.Highest)]
    public void GetOperatingSystem(string args)
    {
        args = args.Replace("%os", Environment.OSVersion.Platform.ToString());

        RuntimeInfo.CurrentLine = args.TrimEnd();
    }

    [Statement("%cpu", SearchMode.Contains, SpaceAround.None, ConsoleColor.Blue, KeepStatementInArgs = true, Priority = Priority.Highest)]
    public void GetProcessorArchitecture(string args)
    {
        args = args.Replace("%cpu", System.Runtime.InteropServices.RuntimeInformation.ProcessArchitecture.ToString());

        RuntimeInfo.CurrentLine = args.TrimEnd();
    }

    [Statement("%is64", SearchMode.Contains, SpaceAround.None, ConsoleColor.Blue, KeepStatementInArgs = true, Priority = Priority.Highest)]
    public void GetIsOperatingSystem64Bit(string args)
    {
        args = args.Replace("%is64", $"{Environment.Is64BitOperatingSystem}");

        RuntimeInfo.CurrentLine = args.TrimEnd();
    }

    [Statement("%pi", SearchMode.Contains, SpaceAround.None, ConsoleColor.Blue, KeepStatementInArgs = true, Priority = Priority.Highest)]
    public void GetPi(string args)
    {
        args = args.Replace("%pi", Math.PI.ToString());

        RuntimeInfo.CurrentLine = args.TrimEnd();
    }

    [Statement("%rand", SearchMode.Contains, SpaceAround.None, ConsoleColor.Blue, KeepStatementInArgs = true, Priority = Priority.Highest)]
    public void GetRandom(string args)
    {
        while (args.Contains("%rand"))
        {
            args = args.ReplaceFirstOccurrence("%rand", random.Next(32767, int.MaxValue).ToString());
        }

        RuntimeInfo.CurrentLine = args.TrimEnd();
    }
}