#nullable enable
using System.Collections.Generic;
using Content.Server.GameObjects.Components.Power.ApcNetComponents;
using Content.Server.GameObjects.Components.VendingMachines;
using Content.Server.Utility;
using Content.Shared.GameObjects.Components;
using Content.Shared.GameObjects.Components.Arcade;
using Content.Shared.GameObjects.EntitySystems.ActionBlocker;
using Content.Shared.Interfaces.GameObjects.Components;
using Robust.Server.GameObjects;
using Robust.Shared.Audio;
using Robust.Shared.GameObjects;
using Robust.Shared.IoC;
using Robust.Shared.Localization;
using Robust.Shared.Maths;
using Robust.Shared.Player;
using Robust.Shared.Prototypes;
using Robust.Shared.Random;
using Robust.Shared.Serialization;
using Robust.Shared.Serialization.Manager.Attributes;
using Robust.Shared.ViewVariables;

namespace Content.Server.GameObjects.Components.Arcade
{
    [RegisterComponent]
    [ComponentReference(typeof(IActivate))]
    public class SpaceVillainArcadeComponent : SharedSpaceVillainArcadeComponent, IActivate, IWires
    {
        [Dependency] private readonly IRobustRandom _random = null!;

        [ComponentDependency] private readonly PowerReceiverComponent? _powerReceiverComponent = default!;
        [ComponentDependency] private readonly WiresComponent? _wiresComponent = default!;

        private bool Powered => _powerReceiverComponent != null && _powerReceiverComponent.Powered;

        [ViewVariables] private BoundUserInterface? UserInterface => Owner.GetUIOrNull(SpaceVillainArcadeUiKey.Key);
        [ViewVariables] private bool _overflowFlag;
        [ViewVariables] private bool _playerInvincibilityFlag;
        [ViewVariables] private bool _enemyInvincibilityFlag;
        [ViewVariables] private SpaceVillainGame _game = null!;

        [ViewVariables(VVAccess.ReadWrite)] [DataField("possibleFightVerbs")] private List<string> _possibleFightVerbs = new List<string>()
            {"Defeat", "Annihilate", "Save", "Strike", "Stop", "Destroy", "Robust", "Romance", "Pwn", "Own"};
        [ViewVariables(VVAccess.ReadWrite)] [DataField("possibleFirstEnemyNames")] private List<string> _possibleFirstEnemyNames = new List<string>(){
            "the Automatic", "Farmer", "Lord", "Professor", "the Cuban", "the Evil", "the Dread King",
            "the Space", "Lord", "the Great", "Duke", "General"
        };
        [ViewVariables(VVAccess.ReadWrite)] [DataField("possibleLastEnemyNames")] private List<string> _possibleLastEnemyNames = new List<string>()
        {
            "Melonoid", "Murdertron", "Sorcerer", "Ruin", "Jeff", "Ectoplasm", "Crushulon", "Uhangoid",
            "Vhakoid", "Peteoid", "slime", "Griefer", "ERPer", "Lizard Man", "Unicorn"
        };
        [ViewVariables(VVAccess.ReadWrite)] [DataField("possibleRewards")] private List<string> _possibleRewards = new List<string>()
        {
            "ToyMouse", "ToyAi", "ToyNuke", "ToyAssistant", "ToyGriffin", "ToyHonk", "ToyIan",
            "ToyMarauder", "ToyMauler", "ToyGygax", "ToyOdysseus", "ToyOwlman", "ToyDeathRipley",
            "ToyPhazon", "ToyFireRipley", "ToyReticence", "ToyRipley", "ToySeraph", "ToyDurand", "ToySkeleton"
        };

        void IActivate.Activate(ActivateEventArgs eventArgs)
        {
            if(!eventArgs.User.TryGetComponent(out IActorComponent? actor))
            {
                return;
            }
            if (!Powered)
            {
                return;
            }
            if(!ActionBlockerSystem.CanInteract(actor.playerSession.AttachedEntity)) return;

            _game ??= new SpaceVillainGame(this);

            if (_wiresComponent?.IsPanelOpen == true)
            {
                _wiresComponent.OpenInterface(actor.playerSession);
            } else
            {
                UserInterface?.Toggle(actor.playerSession);
            }
        }

        public override void Initialize()
        {
            base.Initialize();

            if (UserInterface != null)
            {
                UserInterface.OnReceiveMessage += UserInterfaceOnOnReceiveMessage;
            }
        }

        public override void HandleMessage(ComponentMessage message, IComponent? component)
        {
            base.HandleMessage(message, component);
            switch (message)
            {
                case PowerChangedMessage powerChanged:
                    OnOnPowerStateChanged(powerChanged);
                    break;
            }
        }

        private void OnOnPowerStateChanged(PowerChangedMessage e)
        {
            if(e.Powered) return;

            UserInterface?.CloseAll();
        }


        private void UserInterfaceOnOnReceiveMessage(ServerBoundUserInterfaceMessage serverMsg)
        {
            if (!Powered)
                return;

            if (serverMsg.Message is not SpaceVillainArcadePlayerActionMessage msg) return;

            switch (msg.PlayerAction)
            {
                case PlayerAction.Attack:
                    _game?.ExecutePlayerAction(msg.PlayerAction);
                    break;
                case PlayerAction.Heal:
                    _game?.ExecutePlayerAction(msg.PlayerAction);
                    break;
                case PlayerAction.Recharge:
                    _game?.ExecutePlayerAction(msg.PlayerAction);
                    break;
                case PlayerAction.NewGame:
                    SoundSystem.Play(Filter.Pvs(Owner), "/Audio/Effects/Arcade/newgame.ogg", Owner, AudioParams.Default.WithVolume(-4f));
                    _game = new SpaceVillainGame(this);
                    UserInterface?.SendMessage(_game.GenerateMetaDataMessage());
                    break;
                case PlayerAction.RequestData:
                    UserInterface?.SendMessage(_game.GenerateMetaDataMessage());
                    break;
            }
        }

        public enum Wires
        {
            /// <summary>
            /// Disables Max Health&Mana for both Enemy and Player.
            /// </summary>
            Overflow,
            /// <summary>
            /// Makes Player Invincible.
            /// </summary>
            PlayerInvincible,
            /// <summary>
            /// Makes Enemy Invincible.
            /// </summary>
            EnemyInvincible
        }

        public void RegisterWires(WiresComponent.WiresBuilder builder)
        {
            builder.CreateWire(Wires.Overflow);
            builder.CreateWire(Wires.PlayerInvincible);
            builder.CreateWire(Wires.EnemyInvincible);
            builder.CreateWire(4);
            builder.CreateWire(5);
            builder.CreateWire(6);
            IndicatorUpdate();
        }

        public void WiresUpdate(WiresUpdateEventArgs args)
        {
            var wire = (Wires) args.Identifier;
            var value = args.Action != SharedWiresComponent.WiresAction.Mend;
            switch (wire)
            {
                case Wires.Overflow:
                    _overflowFlag = value;
                    break;
                case Wires.PlayerInvincible:
                    _playerInvincibilityFlag = value;
                    break;
                case Wires.EnemyInvincible:
                    _enemyInvincibilityFlag = value;
                    break;
            }

            IndicatorUpdate();
        }

        public void IndicatorUpdate()
        {
            _wiresComponent?.SetStatus(Indicators.HealthManager,
                new SharedWiresComponent.StatusLightData(Color.Purple,
                    _playerInvincibilityFlag || _enemyInvincibilityFlag
                        ? SharedWiresComponent.StatusLightState.BlinkingSlow
                        : SharedWiresComponent.StatusLightState.On,
                    "MNGR"));
            _wiresComponent?.SetStatus(Indicators.HealthLimiter,
                new SharedWiresComponent.StatusLightData(Color.Red,
                    _overflowFlag
                        ? SharedWiresComponent.StatusLightState.BlinkingSlow
                        : SharedWiresComponent.StatusLightState.On,
                    "LIMT"));
        }

        /// <summary>
        /// Called when the user wins the game.
        /// </summary>
        public void ProcessWin()
        {
            var entityManager = IoCManager.Resolve<IEntityManager>();
            entityManager.SpawnEntity(_random.Pick(_possibleRewards), Owner.Transform.MapPosition);
        }

        /// <summary>
        /// Picks a fight-verb from the list of possible Verbs.
        /// </summary>
        /// <returns>A fight-verb.</returns>
        public string GenerateFightVerb()
        {
            return _random.Pick(_possibleFightVerbs);
        }

        /// <summary>
        /// Generates an enemy-name comprised of a first- and last-name.
        /// </summary>
        /// <returns>An enemy-name.</returns>
        public string GenerateEnemyName()
        {
            return $"{_random.Pick(_possibleFirstEnemyNames)} {_random.Pick(_possibleLastEnemyNames)}";
        }

        /// <summary>
        /// A Class to handle all the game-logic of the SpaceVillain-game.
        /// </summary>
        public class SpaceVillainGame
        {
            [Dependency] private readonly IRobustRandom _random = default!;

            [ViewVariables] private readonly SpaceVillainArcadeComponent _owner;

            [ViewVariables] public string Name => $"{_fightVerb} {_enemyName}";
            [ViewVariables(VVAccess.ReadWrite)] private int _playerHp = 30;
            [ViewVariables(VVAccess.ReadWrite)] private int _playerHpMax = 30;
            [ViewVariables(VVAccess.ReadWrite)] private int _playerMp = 10;
            [ViewVariables(VVAccess.ReadWrite)] private int _playerMpMax = 10;
            [ViewVariables(VVAccess.ReadWrite)] private int _enemyHp = 45;
            [ViewVariables(VVAccess.ReadWrite)] private int _enemyHpMax = 45;
            [ViewVariables(VVAccess.ReadWrite)] private int _enemyMp = 20;
            [ViewVariables(VVAccess.ReadWrite)] private int _enemyMpMax = 20;
            [ViewVariables(VVAccess.ReadWrite)] private int _turtleTracker;

            [ViewVariables(VVAccess.ReadWrite)] private readonly string _fightVerb;
            [ViewVariables(VVAccess.ReadWrite)] private readonly string _enemyName;

            [ViewVariables] private bool _running = true;

            private string _latestPlayerActionMessage = "";
            private string _latestEnemyActionMessage = "";

            public SpaceVillainGame(SpaceVillainArcadeComponent owner) : this(owner, owner.GenerateFightVerb(), owner.GenerateEnemyName()){}

            public SpaceVillainGame(SpaceVillainArcadeComponent owner, string fightVerb, string enemyName)
            {
                IoCManager.InjectDependencies(this);
                _owner = owner;
                //todo defeat the curse secret game mode
                _fightVerb = fightVerb;
                _enemyName = enemyName;
            }

            /// <summary>
            /// Validates all vars incase they overshoot their max-values.
            /// Does not check if vars surpass 0.
            /// </summary>
            private void ValidateVars()
            {
                if(_owner._overflowFlag) return;

                if (_playerHp > _playerHpMax) _playerHp = _playerHpMax;
                if (_playerMp > _playerMpMax) _playerMp = _playerMpMax;
                if (_enemyHp > _enemyHpMax) _enemyHp = _enemyHpMax;
                if (_enemyMp > _enemyMpMax) _enemyMp = _enemyMpMax;
            }

            /// <summary>
            /// Called by the SpaceVillainArcadeComponent when Userinput is received.
            /// </summary>
            /// <param name="action">The action the user picked.</param>
            public void ExecutePlayerAction(PlayerAction action)
            {
                if (!_running) return;

                switch (action)
                {
                    case PlayerAction.Attack:
                        var attackAmount = _random.Next(2, 6);
                        _latestPlayerActionMessage = Loc.GetString("You attack {0} for {1}!", _enemyName, attackAmount);
                        SoundSystem.Play(Filter.Pvs(_owner.Owner), "/Audio/Effects/Arcade/player_attack.ogg", _owner.Owner, AudioParams.Default.WithVolume(-4f));
                        if(!_owner._enemyInvincibilityFlag) _enemyHp -= attackAmount;
                        _turtleTracker -= _turtleTracker > 0 ? 1 : 0;
                        break;
                    case PlayerAction.Heal:
                        var pointAmount = _random.Next(1, 3);
                        var healAmount = _random.Next(6, 8);
                        _latestPlayerActionMessage = Loc.GetString("You use {0} magic to heal for {1} damage!", pointAmount, healAmount);
                        SoundSystem.Play(Filter.Pvs(_owner.Owner), "/Audio/Effects/Arcade/player_heal.ogg", _owner.Owner, AudioParams.Default.WithVolume(-4f));
                        if(!_owner._playerInvincibilityFlag) _playerMp -= pointAmount;
                        _playerHp += healAmount;
                        _turtleTracker++;
                        break;
                    case PlayerAction.Recharge:
                        var chargeAmount = _random.Next(4, 7);
                        _latestPlayerActionMessage = Loc.GetString("You regain {0} points", chargeAmount);
                        SoundSystem.Play(Filter.Pvs(_owner.Owner), "/Audio/Effects/Arcade/player_charge.ogg", _owner.Owner, AudioParams.Default.WithVolume(-4f));
                        _playerMp += chargeAmount;
                        _turtleTracker -= _turtleTracker > 0 ? 1 : 0;
                        break;
                }

                if (!CheckGameConditions())
                {
                    return;
                }

                ValidateVars();
                ExecuteAiAction();

                if (!CheckGameConditions())
                {
                    return;
                }
                ValidateVars();
                UpdateUi();
            }

            /// <summary>
            /// Checks the Game conditions and Updates the Ui & Plays a sound accordingly.
            /// </summary>
            /// <returns>A bool indicating if the game should continue.</returns>
            private bool CheckGameConditions()
            {
                if ((_playerHp > 0 && _playerMp > 0) && (_enemyHp <= 0 || _enemyMp <= 0))
                {
                    _running = false;
                    UpdateUi(Loc.GetString("You won!"), Loc.GetString("{0} dies.", _enemyName), true);
                    SoundSystem.Play(Filter.Pvs(_owner.Owner), "/Audio/Effects/Arcade/win.ogg", _owner.Owner, AudioParams.Default.WithVolume(-4f));
                    _owner.ProcessWin();
                    return false;
                }

                if (_playerHp > 0 && _playerMp > 0) return true;

                if ((_enemyHp > 0 && _enemyMp > 0))
                {
                    _running = false;
                    UpdateUi(Loc.GetString("You lost!"), Loc.GetString("{0} cheers.", _enemyName), true);
                    SoundSystem.Play(Filter.Pvs(_owner.Owner), "/Audio/Effects/Arcade/gameover.ogg", _owner.Owner, AudioParams.Default.WithVolume(-4f));
                    return false;
                }
                if (_enemyHp <= 0 || _enemyMp <= 0)
                {
                    _running = false;
                    UpdateUi(Loc.GetString("You lost!"), Loc.GetString("{0} dies, but takes you with him.", _enemyName), true);
                    SoundSystem.Play(Filter.Pvs(_owner.Owner), "/Audio/Effects/Arcade/gameover.ogg", _owner.Owner, AudioParams.Default.WithVolume(-4f));
                    return false;
                }

                return true;
            }

            /// <summary>
            /// Updates the UI.
            /// </summary>
            private void UpdateUi(bool metadata = false)
            {
                _owner.UserInterface?.SendMessage(metadata ? GenerateMetaDataMessage() : GenerateUpdateMessage());
            }

            private void UpdateUi(string message1, string message2, bool metadata = false)
            {
                _latestPlayerActionMessage = message1;
                _latestEnemyActionMessage = message2;
                UpdateUi(metadata);
            }

            /// <summary>
            /// Handles the logic of the AI
            /// </summary>
            /// <returns>An Enemyaction-message.</returns>
            private void ExecuteAiAction()
            {
                if (_turtleTracker >= 4)
                {
                    var boomAmount = _random.Next(5, 10);
                    _latestEnemyActionMessage = Loc.GetString("{0} throws a bomb, exploding you for {1} damage!", _enemyName, boomAmount);
                    if (_owner._playerInvincibilityFlag) return;
                    _playerHp -= boomAmount;
                    _turtleTracker--;
                }else if (_enemyMp <= 5 && _random.Prob(0.7f))
                {
                    var stealAmount = _random.Next(2, 3);
                    _latestEnemyActionMessage = Loc.GetString("{0} steals {1} of your power!", _enemyName, stealAmount);
                    if (_owner._playerInvincibilityFlag) return;
                    _playerMp -= stealAmount;
                    _enemyMp += stealAmount;
                }else if (_enemyHp <= 10 && _enemyMp > 4)
                {
                    _enemyHp += 4;
                    _enemyMp -= 4;
                    _latestEnemyActionMessage = Loc.GetString("{0} heals for 4 health!", _enemyName);
                }
                else
                {
                    var attackAmount = _random.Next(3, 6);
                    _latestEnemyActionMessage =
                        Loc.GetString("{0} attacks you for {1} damage!", _enemyName, attackAmount);
                    if (_owner._playerInvincibilityFlag) return;
                    _playerHp -= attackAmount;
                }
            }

            /// <summary>
            /// Generates a Metadata-message based on the objects values.
            /// </summary>
            /// <returns>A Metadata-message.</returns>
            public SpaceVillainArcadeMetaDataUpdateMessage GenerateMetaDataMessage()
            {
                return new(_playerHp, _playerMp, _enemyHp, _enemyMp, _latestPlayerActionMessage, _latestEnemyActionMessage, Name, _enemyName, !_running);
            }

            /// <summary>
            /// Creates an Update-message based on the objects values.
            /// </summary>
            /// <returns>An Update-Message.</returns>
            public SpaceVillainArcadeDataUpdateMessage
                GenerateUpdateMessage()
            {
                return new(_playerHp, _playerMp, _enemyHp, _enemyMp, _latestPlayerActionMessage,
                    _latestEnemyActionMessage);
            }
        }
    }
}