using BrewMonster.Network;
using BrewMonster.Scripts;
using BrewMonster.Scripts.Managers;
using System;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace BrewMonster.UI
{
    /// <summary>
    /// Numeric input dialog (C++ CDlgInputNO / DlgInputNO). Dialog id: <c>DlgQuantity</c>.
    /// </summary>
    public class DlgQuantity : AUIDialog
    {
        public enum QuantityMode
        {
            None = 0,
            /// <summary>Gửi tiền vào kho — C++ INPUTNO_STORAGE_IVTR_MONEY (Win_Inventory choosemoney + storage open).</summary>
            StorageDepositMoney,
            /// <summary>Rút tiền ra — C++ INPUTNO_STORAGE_TRASH_MONEY (Win_Storage choosemoney).</summary>
            StorageWithdrawMoney,
            /// <summary>Gửi tiền vào kho tài khoản — same C2S as storage, with is_accountbox=1.</summary>
            AccountStorageDepositMoney,
            /// <summary>Rút tiền ra từ kho tài khoản — same C2S as storage, with is_accountbox=1.</summary>
            AccountStorageWithdrawMoney,
        }

        [Header("Amount")]
        [SerializeField] private TMP_InputField amountInput;
        [SerializeField] private Text amountTextLegacy;

        [Header("Buttons (C++: confirm / IDCANCEL / add / minus / max)")]
        [SerializeField] private Button confirmButton;
        [SerializeField] private Button cancelButton;
        [SerializeField] private Button addButton;
        [SerializeField] private Button minusButton;
        [SerializeField] private Button maxButton;

        private QuantityMode _mode = QuantityMode.None;
        private int _min = 1;
        private int _max = 1;
        private int _current = 1;
        private Action<int, QuantityMode> _onConfirmed;

        public static DlgQuantity GetDialog()
        {
            return EC_Game.GetGameRun()?.GetUIManager()?.GetInGameUIMan()?.GetDialog("DlgQuantity") as DlgQuantity;
        }

        /// <summary>Open quantity panel; on confirm invokes callback then sends C2S when mode is storage money.</summary>
        public static void Show(QuantityMode mode, int maxAmount, int defaultAmount = 1, Action<int, QuantityMode> onConfirmed = null)
        {
            var dlg = GetDialog();
            if (dlg == null)
            {
                Debug.LogError("[DlgQuantity] Dialog 'DlgQuantity' not found. Add prefab to DialogScriptTableObject (id DlgQuantity).");
                return;
            }

            CECUIManager.Instance?.ShowDialogOverlay("DlgQuantity");
            dlg.Open(mode, maxAmount, defaultAmount, onConfirmed);
        }

        public override void Awake()
        {
            base.Awake();
            ResolveControls();
            WireButtons();
        }

        void ResolveControls()
        {
            if (amountInput == null)
            {
                amountInput = GetComponentInChildren<TMP_InputField>(true);
                if (amountInput != null && amountInput.name.Contains("DEFAULT", StringComparison.OrdinalIgnoreCase) == false)
                {
                    var all = GetComponentsInChildren<TMP_InputField>(true);
                    for (int i = 0; i < all.Length; i++)
                    {
                        if (all[i] != null && all[i].name.IndexOf("Txt_No", StringComparison.OrdinalIgnoreCase) >= 0)
                        {
                            amountInput = all[i];
                            break;
                        }
                    }
                }
            }

            ResolveButton(ref confirmButton, "confirm", "btn_confirm", "ok");
            ResolveButton(ref cancelButton, "cancel", "idcanel", "btn_cancel", "close");
            ResolveButton(ref addButton, "add", "btn_add", "incre", "plus");
            ResolveButton(ref minusButton, "minus", "btn_minus", "reduce", "decre");
            ResolveButton(ref maxButton, "max", "btn_max");
        }

        void ResolveButton(ref Button field, params string[] nameHints)
        {
            if (field != null)
                return;
            var buttons = GetComponentsInChildren<Button>(true);
            for (int i = 0; i < buttons.Length; i++)
            {
                var btn = buttons[i];
                if (btn == null)
                    continue;
                string n = btn.name.ToLowerInvariant();
                for (int h = 0; h < nameHints.Length; h++)
                {
                    if (n.Contains(nameHints[h]))
                    {
                        field = btn;
                        return;
                    }
                }
            }
        }

        void WireButtons()
        {
            if (confirmButton != null)
            {
                confirmButton.onClick.RemoveAllListeners();
                confirmButton.onClick.AddListener(OnConfirm);
            }
            if (cancelButton != null)
            {
                cancelButton.onClick.RemoveAllListeners();
                cancelButton.onClick.AddListener(OnCancel);
            }
            if (addButton != null)
            {
                addButton.onClick.RemoveAllListeners();
                addButton.onClick.AddListener(OnAdd);
            }
            if (minusButton != null)
            {
                minusButton.onClick.RemoveAllListeners();
                minusButton.onClick.AddListener(OnMinus);
            }
            if (maxButton != null)
            {
                maxButton.onClick.RemoveAllListeners();
                maxButton.onClick.AddListener(OnMax);
            }

            if (amountInput != null)
            {
                amountInput.onValueChanged.RemoveAllListeners();
                amountInput.onValueChanged.AddListener(OnAmountInputChanged);
                amountInput.contentType = TMP_InputField.ContentType.IntegerNumber;
            }
        }

        public void Open(QuantityMode mode, int maxAmount, int defaultAmount, Action<int, QuantityMode> onConfirmed)
        {
            _mode = mode;
            _onConfirmed = onConfirmed;
            _max = Mathf.Max(0, maxAmount);
            _min = _max > 0 ? 1 : 0;
            _current = Mathf.Clamp(defaultAmount, _min, Mathf.Max(_min, _max));
            if (_max <= 0)
                _current = 0;

            ApplyAmountToUi();
            Show(true);
        }

        void ApplyAmountToUi()
        {
            string text = _current.ToString();
            if (amountInput != null)
                amountInput.SetTextWithoutNotify(text);
            if (amountTextLegacy != null)
                amountTextLegacy.text = text;
        }

        int ReadAmountFromUi()
        {
            if (amountInput != null && int.TryParse(amountInput.text, out int v))
                return v;
            if (amountTextLegacy != null && int.TryParse(amountTextLegacy.text, out v))
                return v;
            return _current;
        }

        void SetAmount(int value)
        {
            if (_max <= 0)
            {
                _current = 0;
            }
            else
            {
                _current = Mathf.Clamp(value, _min, _max);
            }
            ApplyAmountToUi();
        }

        void OnAmountInputChanged(string _)
        {
            SetAmount(ReadAmountFromUi());
        }

        void OnAdd() => SetAmount(_current + 1);
        void OnMinus() => SetAmount(_current - 1);
        void OnMax() => SetAmount(_max);

        void OnConfirm()
        {
            if (_max <= 0)
            {
                OnCancel();
                return;
            }

            int n = ReadAmountFromUi();
            if (n < _min)
                n = _min;
            if (n > _max)
                n = _max;
            if (n <= 0)
                return;

            ExecuteMode(n);
            _onConfirmed?.Invoke(n, _mode);
            Close();
        }

        void ExecuteMode(int amount)
        {
            switch (_mode)
            {
                case QuantityMode.StorageDepositMoney:
                    // C++ INPUTNO_STORAGE_IVTR_MONEY: ExgTrashBoxMoney(iTrash=0, iIvtr=amount)
                    UnityGameSession.c2s_CmdExgTrashBoxMoney(amount, 0);
                    break;
                case QuantityMode.StorageWithdrawMoney:
                    // C++ INPUTNO_STORAGE_TRASH_MONEY: ExgTrashBoxMoney(iTrash=amount, iIvtr=0)
                    UnityGameSession.c2s_CmdExgTrashBoxMoney(0, amount);
                    break;
                case QuantityMode.AccountStorageDepositMoney:
                    UnityGameSession.c2s_CmdExgTrashBoxMoney(amount, 0, true);
                    break;
                case QuantityMode.AccountStorageWithdrawMoney:
                    UnityGameSession.c2s_CmdExgTrashBoxMoney(0, amount, true);
                    break;
            }
        }

        void OnCancel() => Close();

        void Close()
        {
            _mode = QuantityMode.None;
            _onConfirmed = null;
            CECUIManager.Instance?.HideDialogOverlay("DlgQuantity");
        }
    }
}