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

namespace BrewMonster.UI
{
    /// <summary>
    /// Change warehouse password (C++ CDlgStorageChangePW / Win_InputString3).
    /// Dialog id for <see cref="CECUIManager.ShowUI"/>: <see cref="DialogId"/>.
    /// </summary>
    public class DlgStorageChangePW : AUIDialog
    {
        public const string DialogId = "DlgStorageChangePW";

        const int StringIdPasswordMismatch = 254;

        [SerializeField] private TMP_InputField oldPasswordInput;
        [SerializeField] private TMP_InputField newPasswordInput;
        [SerializeField] private TMP_InputField confirmPasswordInput;
        [SerializeField] private Button confirmButton;
        [SerializeField] private Button cancelButton;
        [SerializeField] private Button closeButton;

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

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

        public override void OnShowDialogue()
        {
            base.OnShowDialogue();
            WireButtons();
            ClearFields();
        }

        void ResolveControls()
        {
            oldPasswordInput = DlgStoragePasswordUiHelper.FindInputField(transform, oldPasswordInput, "DEFAULT_Txt_Input");
            newPasswordInput = DlgStoragePasswordUiHelper.FindInputField(transform, newPasswordInput, "Txt_New");
            confirmPasswordInput = DlgStoragePasswordUiHelper.FindInputField(transform, confirmPasswordInput, "Txt_NewConfirm");
            EnsurePasswordFieldLayout();

            DlgStoragePasswordUiHelper.ConfigurePasswordField(oldPasswordInput);
            DlgStoragePasswordUiHelper.ConfigurePasswordField(newPasswordInput);
            DlgStoragePasswordUiHelper.ConfigurePasswordField(confirmPasswordInput);

            DlgStoragePasswordUiHelper.ResolveButton(ref confirmButton, transform, "confirm", "btn_decide", "btn_confirm", "ok");
            DlgStoragePasswordUiHelper.ResolveButton(ref cancelButton, transform, "cancel", "idcanel", "btn_cancel", "btn_exit");
            DlgStoragePasswordUiHelper.ResolveButton(ref closeButton, transform, "btn_close", "close");
        }

        void WireButtons()
        {
            DlgStoragePasswordUiHelper.ResolveButton(ref confirmButton, transform, "confirm", "btn_decide", "btn_confirm", "ok");
            DlgStoragePasswordUiHelper.WireConfirmButton(transform, OnConfirm, confirmButton);
            DlgStoragePasswordUiHelper.WireCancelButtons(transform, OnCancel);
        }

        void EnsurePasswordFieldLayout()
        {
            if (oldPasswordInput == null)
                return;
            if (newPasswordInput == null)
                newPasswordInput = DlgStoragePasswordUiHelper.ClonePasswordField(oldPasswordInput, "Txt_New", new Vector2(0f, -22f));
            if (confirmPasswordInput == null)
                confirmPasswordInput = DlgStoragePasswordUiHelper.ClonePasswordField(oldPasswordInput, "Txt_NewConfirm", new Vector2(0f, -44f));
        }

        void ClearFields()
        {
            if (oldPasswordInput != null)
                oldPasswordInput.SetTextWithoutNotify(string.Empty);
            if (newPasswordInput != null)
                newPasswordInput.SetTextWithoutNotify(string.Empty);
            if (confirmPasswordInput != null)
                confirmPasswordInput.SetTextWithoutNotify(string.Empty);
        }

        void OnConfirm()
        {
            string oldPw = oldPasswordInput != null ? oldPasswordInput.text : string.Empty;
            string newPw = newPasswordInput != null ? newPasswordInput.text : string.Empty;
            string confirmPw = confirmPasswordInput != null ? confirmPasswordInput.text : string.Empty;

            if (newPw != confirmPw)
            {
                var gameUi = EC_Game.GetGameRun()?.GetUIManager()?.GetInGameUIMan();
                gameUi?.ShowErrorMsg(GetStringFromTable(StringIdPasswordMismatch), string.Empty);
                return;
            }

            UnityGameSession.c2s_CmdNPCSevChgTrashPsw(oldPw, newPw);
            CloseDialog();
        }

        void OnCancel()
        {
            CECUIManager.Instance?.EndNpcTalkAfterStorageService();
        }

        void CloseDialog()
        {
            CECUIManager.Instance?.EndNpcTalkAfterStorageService();
        }
    }

    static class DlgStoragePasswordUiHelper
    {
        public static TMP_InputField FindInputField(Transform root, TMP_InputField assigned, string controlName)
        {
            if (assigned != null)
                return assigned;

            var direct = root.Find(controlName);
            if (direct != null && direct.TryGetComponent(out TMP_InputField directField))
                return directField;

            var all = root.GetComponentsInChildren<TMP_InputField>(true);
            for (int i = 0; i < all.Length; i++)
            {
                if (all[i] != null && string.Equals(all[i].name, controlName, StringComparison.OrdinalIgnoreCase))
                    return all[i];
            }

            if (all.Length == 1 && string.Equals(controlName, "DEFAULT_Txt_Input", StringComparison.OrdinalIgnoreCase))
                return all[0];

            return null;
        }

        public static void ConfigurePasswordField(TMP_InputField field)
        {
            if (field == null)
                return;
            field.contentType = TMP_InputField.ContentType.Password;
            field.inputType = TMP_InputField.InputType.Password;
        }

        public static TMP_InputField ClonePasswordField(TMP_InputField template, string name, Vector2 anchoredOffset)
        {
            if (template == null)
                return null;

            var clone = UnityEngine.Object.Instantiate(template, template.transform.parent);
            clone.name = name;
            var rt = clone.GetComponent<RectTransform>();
            if (rt != null)
                rt.anchoredPosition += anchoredOffset;
            ConfigurePasswordField(clone);
            return clone;
        }

        public static void ResolveButton(ref Button field, Transform root, params string[] nameHints)
        {
            if (field != null)
                return;

            var buttons = root.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;
                    }
                }
            }
        }

        public static void WireConfirmButton(Transform root, Action onConfirm, Button assignedConfirm = null)
        {
            if (onConfirm == null)
                return;

            if (assignedConfirm != null)
            {
                assignedConfirm.onClick.RemoveAllListeners();
                assignedConfirm.onClick.AddListener(() => onConfirm());
                return;
            }

            var buttons = root.GetComponentsInChildren<Button>(true);
            for (int i = 0; i < buttons.Length; i++)
            {
                var btn = buttons[i];
                if (btn == null || IsCancelButtonName(btn.name))
                    continue;
                string n = btn.name.ToLowerInvariant();
                if (n.Contains("confirm") || n.Contains("btn_decide") || n.Contains("btn_confirm") || n == "ok")
                {
                    btn.onClick.RemoveAllListeners();
                    btn.onClick.AddListener(() => onConfirm());
                    return;
                }
            }
        }

        public static void WireCancelButtons(Transform root, Action onCancel)
        {
            if (onCancel == null)
                return;

            var buttons = root.GetComponentsInChildren<Button>(true);
            for (int i = 0; i < buttons.Length; i++)
            {
                var btn = buttons[i];
                if (btn == null || !IsCancelButtonName(btn.name))
                    continue;
                btn.onClick.RemoveAllListeners();
                btn.onClick.AddListener(() => onCancel());
            }
        }

        static bool IsCancelButtonName(string buttonName)
        {
            if (string.IsNullOrEmpty(buttonName))
                return false;
            string n = buttonName.ToLowerInvariant();
            if (n.Contains("confirm") || n.Contains("decide") || n == "ok")
                return false;
            if (n.Contains("add") || n.Contains("minus") || n.Contains("max"))
                return false;
            return n.Contains("cancel") || n.Contains("btn_exit") || n.Contains("idcanel")
                || n.Contains("btn_close") || n == "close";
        }
    }
}