using System;
using System.Collections.Generic;
using ModernUO.Serialization;
using Server.Targeting;

namespace Server.Items;

public class CrystalRechargeInfo
{
    private static CrystalRechargeInfo[] _table =
    {
        new(typeof(Citrine), 500),
        new(typeof(Amber), 500),
        new(typeof(Tourmaline), 750),
        new(typeof(Emerald), 1000),
        new(typeof(Sapphire), 1000),
        new(typeof(Amethyst), 1000),
        new(typeof(StarSapphire), 1250),
        new(typeof(Diamond), 2000)
    };

    private CrystalRechargeInfo(Type type, int amount)
    {
        Type = type;
        Amount = amount;
    }

    public Type Type { get; }

    public int Amount { get; }

    public static CrystalRechargeInfo Get(Type type)
    {
        foreach (var info in _table)
        {
            if (info.Type == type)
            {
                return info;
            }
        }

        return null;
    }
}

[SerializationGenerator(1)]
public partial class BroadcastCrystal : Item
{
    public const int MaxCharges = 2000;

    [InvalidateProperties]
    [SerializableField(0)]
    [SerializedCommandProperty(AccessLevel.GameMaster)]
    private int _charges;

    [InvalidateProperties]
    [SerializableField(1, getter: "private", setter: "private")]
    [SerializedCommandProperty(AccessLevel.GameMaster)]
    private List<ReceiverCrystal> _receivers;

    [Constructible]
    public BroadcastCrystal(int charges = 2000) : base(0x1ED0)
    {
        Light = LightType.Circle150;
        _charges = charges;
        _receivers = new List<ReceiverCrystal>();
    }

    public override int LabelNumber => 1060740; // communication crystal

    [CommandProperty(AccessLevel.GameMaster)]
    public bool Active
    {
        get => ItemID == 0x1ECD;
        set
        {
            ItemID = value ? 0x1ECD : 0x1ED0;
            InvalidateProperties();
        }
    }

    public override bool HandlesOnSpeech => true;

    public override void GetProperties(IPropertyList list)
    {
        base.GetProperties(list);

        list.Add(Active ? 1060742 : 1060743); // active / inactive
        list.Add(1060745);                    // broadcast
        list.Add(1060741, Charges);           // charges: ~1_val~

        if (_receivers.Count > 0)
        {
            list.Add(1060746, _receivers.Count); // links: ~1_val~
        }
    }

    public override void OnSingleClick(Mobile from)
    {
        base.OnSingleClick(from);

        LabelTo(from, Active ? 1060742 : 1060743);  // active / inactive
        LabelTo(from, 1060745);                     // broadcast
        LabelTo(from, 1060741, Charges.ToString()); // charges: ~1_val~

        if (_receivers.Count > 0)
        {
            LabelTo(from, 1060746, _receivers.Count.ToString()); // links: ~1_val~
        }
    }

    private void Deserialize(IGenericReader reader, int version)
    {
        _charges = reader.ReadEncodedInt();
        _receivers = reader.ReadEntityList<ReceiverCrystal>();
    }

    public override void OnSpeech(SpeechEventArgs e)
    {
        if (!Active || Receivers.Count == 0 || RootParent != null && RootParent is not Mobile || e.Type == MessageType.Emote)
        {
            return;
        }

        var from = e.Mobile;
        var speech = e.Speech;

        foreach (var receiver in new List<ReceiverCrystal>(Receivers))
        {
            if (receiver.Deleted)
            {
                RemoveReceiver(receiver);
            }
            else if (Charges > 0)
            {
                receiver.TransmitMessage(from, speech);
                Charges--;
            }
            else
            {
                Active = false;
                break;
            }
        }
    }

    public void AddReceiver(ReceiverCrystal receiver)
    {
        AddToReceivers(receiver);
        InvalidateProperties();
    }

    public void RemoveReceiver(ReceiverCrystal receiver)
    {
        RemoveFromReceivers(receiver);
        InvalidateProperties();
    }

    public override void OnDoubleClick(Mobile from)
    {
        if (!from.InRange(GetWorldLocation(), 2))
        {
            from.LocalOverheadMessage(MessageType.Regular, 0x3B2, 1019045); // I can't reach that.
            return;
        }

        from.Target = new InternalTarget(this);
    }

    private class InternalTarget : Target
    {
        private readonly BroadcastCrystal m_Crystal;

        public InternalTarget(BroadcastCrystal crystal) : base(2, false, TargetFlags.None) => m_Crystal = crystal;

        protected override void OnTarget(Mobile from, object targeted)
        {
            if (!m_Crystal.IsAccessibleTo(from))
            {
                return;
            }

            if (from.Map != m_Crystal.Map || !from.InRange(m_Crystal.GetWorldLocation(), 2))
            {
                from.LocalOverheadMessage(MessageType.Regular, 0x3B2, 1019045); // I can't reach that.
                return;
            }

            if (targeted == m_Crystal)
            {
                if (m_Crystal.Active)
                {
                    m_Crystal.Active = false;
                    from.SendLocalizedMessage(500672); // You turn the crystal off.
                }
                else
                {
                    if (m_Crystal.Charges > 0)
                    {
                        m_Crystal.Active = true;
                        from.SendLocalizedMessage(500673); // You turn the crystal on.
                    }
                    else
                    {
                        from.SendLocalizedMessage(500676); // This crystal is out of charges.
                    }
                }
            }
            else if (targeted is ReceiverCrystal receiver)
            {
                if (m_Crystal.Receivers.Count >= 10)
                {
                    from.SendLocalizedMessage(1010042); // This broadcast crystal is already linked to 10 receivers.
                }
                else if (receiver.Sender == m_Crystal)
                {
                    from.SendLocalizedMessage(500674); // This crystal is already linked with that crystal.
                }
                else if (receiver.Sender != null)
                {
                    // That receiver crystal is already linked to another broadcast crystal.
                    from.SendLocalizedMessage(1010043);
                }
                else
                {
                    receiver.Sender = m_Crystal;
                    from.SendLocalizedMessage(500675); // That crystal has been linked to this crystal.
                }
            }
            else if (targeted == from)
            {
                foreach (var rc in new List<ReceiverCrystal>(m_Crystal.Receivers))
                {
                    rc.Sender = null;
                }

                from.SendLocalizedMessage(1010046); // You unlink the broadcast crystal from all of its receivers.
            }
            else if (targeted is not Item targItem || !targItem.VerifyMove(from))
            {
                from.SendLocalizedMessage(500681); // You cannot use this crystal on that.
            }
            else
            {
                var info = CrystalRechargeInfo.Get(targItem.GetType());

                if (info == null)
                {
                    from.SendLocalizedMessage(500681); // You cannot use this crystal on that.
                }
                else if (m_Crystal.Charges >= MaxCharges)
                {
                    from.SendLocalizedMessage(500678); // This crystal is already fully charged.
                }
                else
                {
                    targItem.Consume();

                    if (m_Crystal.Charges + info.Amount >= MaxCharges)
                    {
                        m_Crystal.Charges = MaxCharges;
                        from.SendLocalizedMessage(500679); // You completely recharge the crystal.
                    }
                    else
                    {
                        m_Crystal.Charges += info.Amount;
                        from.SendLocalizedMessage(500680); // You recharge the crystal.
                    }
                }
            }
        }
    }
}

[SerializationGenerator(0)]
public partial class ReceiverCrystal : Item
{
    private BroadcastCrystal _sender;

    [Constructible]
    public ReceiverCrystal() : base(0x1ED0) => Light = LightType.Circle150;

    public ReceiverCrystal(Serial serial) : base(serial)
    {
    }

    public override int LabelNumber => 1060740; // communication crystal

    [CommandProperty(AccessLevel.GameMaster)]
    public bool Active
    {
        get => ItemID == 0x1ED1;
        set
        {
            ItemID = value ? 0x1ED1 : 0x1ED0;
            InvalidateProperties();
        }
    }

    [SerializableProperty(0, useField: nameof(_sender))]
    [CommandProperty(AccessLevel.GameMaster)]
    public BroadcastCrystal Sender
    {
        get => _sender;
        set
        {
            _sender?.RemoveReceiver(this);
            _sender = value;
            value?.AddReceiver(this);
            this.MarkDirty();
        }
    }

    public override void GetProperties(IPropertyList list)
    {
        base.GetProperties(list);

        list.Add(Active ? 1060742 : 1060743); // active / inactive
        list.Add(1060744);                    // receiver
    }

    public override void OnSingleClick(Mobile from)
    {
        base.OnSingleClick(from);

        LabelTo(from, Active ? 1060742 : 1060743); // active / inactive
        LabelTo(from, 1060744);                    // receiver
    }

    public void TransmitMessage(Mobile from, string message)
    {
        if (!Active)
        {
            return;
        }

        var text = $"{from.Name} says {message}";

        if (RootParent is Mobile mobile)
        {
            mobile.SendMessage(0x2B2, $"Crystal: {text}");
        }
        else if (RootParent is Item item)
        {
            item.PublicOverheadMessage(MessageType.Regular, 0x2B2, false, $"Crystal: {text}");
        }
        else
        {
            PublicOverheadMessage(MessageType.Regular, 0x2B2, false, text);
        }
    }

    public override void OnDoubleClick(Mobile from)
    {
        if (!from.InRange(GetWorldLocation(), 2))
        {
            from.LocalOverheadMessage(MessageType.Regular, 0x3B2, 1019045); // I can't reach that.
            return;
        }

        from.Target = new InternalTarget(this);
    }

    private class InternalTarget : Target
    {
        private readonly ReceiverCrystal m_Crystal;

        public InternalTarget(ReceiverCrystal crystal) : base(-1, false, TargetFlags.None) => m_Crystal = crystal;

        protected override void OnTarget(Mobile from, object targeted)
        {
            if (!m_Crystal.IsAccessibleTo(from))
            {
                return;
            }

            if (from.Map != m_Crystal.Map || !from.InRange(m_Crystal.GetWorldLocation(), 2))
            {
                from.LocalOverheadMessage(MessageType.Regular, 0x3B2, 1019045); // I can't reach that.
                return;
            }

            if (targeted == m_Crystal)
            {
                if (m_Crystal.Active)
                {
                    m_Crystal.Active = false;
                    from.SendLocalizedMessage(500672); // You turn the crystal off.
                }
                else
                {
                    m_Crystal.Active = true;
                    from.SendLocalizedMessage(500673); // You turn the crystal on.
                }
            }
            else if (targeted == from)
            {
                if (m_Crystal.Sender != null)
                {
                    m_Crystal.Sender = null;
                    from.SendLocalizedMessage(1010044); // You unlink the receiver crystal.
                }
                else
                {
                    from.SendLocalizedMessage(1010045); // That receiver crystal is not linked.
                }
            }
            else
            {
                if (targeted is Item targItem && targItem.VerifyMove(from))
                {
                    var info = CrystalRechargeInfo.Get(targItem.GetType());

                    if (info != null)
                    {
                        from.SendLocalizedMessage(500677); // This crystal cannot be recharged.
                        return;
                    }
                }

                from.SendLocalizedMessage(1010045); // That receiver crystal is not linked.
            }
        }
    }
}