using System;

namespace pkNX.Structures;

/// <summary>
/// Feature flags for the <see cref="AmxHeader"/>
/// </summary>
/// <remarks>
/// Flag version listed here is for CUR_FILE_VERSION = 10, circa 2008
/// </remarks>
[Flags]
public enum AmxFlags : ushort
{
    NONE,

    /// <summary> All function calls use overlays </summary>
    OVERLAY = 0x01,

    /// <summary> Symbolic info is available </summary>
    DEBUG = 0x02,

    /// <summary> Compact encoding </summary>
    COMPACT = 0x04,

    /// <summary> Script uses the sleep instruction (possible re-entry or power-down mode) </summary>
    SLEEP = 0x08,

    /// <summary> No array bounds checking; no BREAK opcodes </summary>
    NOCHECKS = 0x10,

    /// <summary> Data section is explicitly initialized </summary>
    DSEG_INIT = 0x20,

    /// <summary> Script new (optimized) version of SYSREQ opcode </summary>
    SYSREQN = 0x800,

    /// <summary> All native functions are registered </summary>
    NTVREG = 0x1000,

    /// <summary> Abstract machine is JIT compiled </summary>
    JITC = 0x2000,

    /// <summary> Busy verifying P-code </summary>
    VERIFY = 0x4000,

    /// <summary> AMX has been initialized </summary>
    INIT = 0x8000,
}

public static class AmxFlagsExtensions
{
    public static bool HasFlagFast(this AmxFlags value, AmxFlags flag)
    {
        return (value & flag) != 0;
    }
}