// Copyright (C) 2015-2024 The Neo Project.
//
// MyApplicationEngine.cs file belongs to the neo project and is free
// software distributed under the MIT software license, see the
// accompanying file LICENSE in the main directory of the
// repository or http://www.opensource.org/licenses/mit-license.php
// for more details.
//
// Redistribution and use in source and binary forms with or without
// modifications are permitted.

using Neo.Network.P2P.Payloads;
using Neo.Persistence;
using Neo.SmartContract;
using Neo.VM;

namespace MyApp
{
    public class MyApplicationEngine : ApplicationEngine
    {
        protected MyApplicationEngine(
            TriggerType trigger,
            IVerifiable container,
            DataCache snapshot,
            Block persistingBlock,
            ProtocolSettings settings,
            long gas,
            IDiagnostic diagnostic,
            JumpTable jumpTable = null)
            : base(trigger, container, snapshot, persistingBlock, settings, gas, diagnostic, jumpTable)
        {
        }

        protected override void OnSysCall(InteropDescriptor descriptor)
        {
            // TODO: Implement OnSysCall
        }
    }

    public class MyApplicationEngineProvider : IApplicationEngineProvider
    {
        public ApplicationEngine Create(TriggerType trigger, IVerifiable container, DataCache snapshot, Block persistingBlock, ProtocolSettings settings, long gas, IDiagnostic diagnostic, JumpTable jumpTable)
        {
            return new MyApplicationEngine(trigger, container, snapshot, persistingBlock, settings, gas, diagnostic, new MyJumpTable());
        }
    }

    public class MyJumpTable : JumpTable
    {
        public MyJumpTable() : base()
        {
            this[OpCode.SYSCALL] = Syscall;
            this[OpCode.CALLT] = CallT;
        }

        public override void Syscall(ExecutionEngine engine, Instruction instruction)
        {
            // TODO: Implement Syscall
        }

        public override void CallT(ExecutionEngine engine, Instruction instruction)
        {
            // TODO: Implement CallT
        }
    }
}

ApplicationEngine.Provider = new MyApplicationEngineProvider();
ApplicationEngine.Run(script, snapshot, tx, settings: neoSystem.Settings);

// MyJumpTable Class ....
        public override void CallT(ExecutionEngine engine, Instruction instruction)
        {
            // TODO: Add work before
            base.CallT(engine, instruction);
            // TODO: Add work After
        }

public class MyApplicationEngineProvider : IApplicationEngineProvider
{
    public static Action<ExecutionEngine, Instruction> Original_OnCallT { get; private set; };

    public ApplicationEngine Create(TriggerType trigger, IVerifiable container, DataCache snapshot, Block persistingBlock, ProtocolSettings settings, long gas, IDiagnostic diagnostic, JumpTable jumpTable)
    {
        Original_OnCallT = jumpTable.CallT;

        return new MyApplicationEngine(trigger, container, snapshot, persistingBlock, settings, gas, diagnostic, new MyJumpTable());
    }
}

public class MyJumpTable : JumpTable
{
    public MyJumpTable() : base()
    {
    }

    public override void Syscall(ExecutionEngine engine, Instruction instruction)
    {
        // TODO: Implement Syscall
    }

    public override void CallT(ExecutionEngine engine, Instruction instruction)
    {
        // TODO: Implement CallT
        MyApplicationEngineProvider.Original_OnCallT(engine, instruction);
    }
}