using System;
using TMPro;
using UnityEngine;
using Cinemachine;
using System.Collections;

namespace TPSBR.UI
{
    public class UIAgentSelectionView : UICloseView
    {
        [SerializeField] private CinemachineVirtualCamera _camera;
        [SerializeField] private UIList _agentList;
        [SerializeField] private UIButton _selectButton;
        [SerializeField] private TextMeshProUGUI _agentName;
        [SerializeField] private TextMeshProUGUI _agentDescription;
        [SerializeField] private string _agentNameFormat = "{0}";
        [SerializeField] private UIBehaviour _selectedAgentGroup;
        [SerializeField] private UIBehaviour _selectedEffect;
        [SerializeField] private AudioSetup _selectedSound;
        [SerializeField] private float _closeDelayAfterSelection = 0.5f;

        private string _previewAgent;
        private const string ShopKey = "Characters";

        protected override void OnInitialize()
        {
            base.OnInitialize();
            _agentList.SelectionChanged += OnSelectionChanged;
            _agentList.UpdateContent += OnListUpdateContent;
            _selectButton.onClick.AddListener(OnSelectButton);
        }

        private void OnListUpdateContent(int index, MonoBehaviour content)
        {
            StartCoroutine(OnListUpdateContentRoutine(index,content));
        }
        IEnumerator OnListUpdateContentRoutine(int index, MonoBehaviour content)
        {
            yield return new WaitForSeconds(0.2f);
            var behaviour = content as UIBehaviour;
            var setup = Context.Settings.Agent.Agents[index];
            behaviour.Image.sprite = setup.Icon;

            bool owned = index == 0 || ShopUnlocks.IsUnlocked(setup.ID, ShopKey);
            var item = content.GetComponentInParent<UIListItem>();
            if (item != null) item.SetLocked(!owned); // lockGO active when NOT bought
        }
        protected override void OnOpen()
        {
            base.OnOpen();
            _camera.enabled = true;
            _selectedEffect.SetActive(false);

            var agents = Context.Settings.Agent.Agents;
            if (agents != null && agents.Length > 0)
                ShopUnlocks.EnsureUnlocked(agents[0].ID, ShopKey); // first is free

            _previewAgent = Context.PlayerData.AgentID;
            _agentList.Refresh(agents.Length, false);
            UpdateAgent();
        }

        protected override void OnClose()
        {
            _camera.enabled = false;
            Context.PlayerPreview.ShowAgent(Context.PlayerData.AgentID);
            base.OnClose();
        }

        protected override void OnDeinitialize()
        {
            _agentList.SelectionChanged -= OnSelectionChanged;
            _agentList.UpdateContent -= OnListUpdateContent;
            _selectButton.onClick.RemoveListener(OnSelectButton);
            base.OnDeinitialize();
        }

        private void OnSelectionChanged(int index)
        {
            var setup = Context.Settings.Agent.Agents[index];
            bool owned = index == 0 || ShopUnlocks.IsUnlocked(setup.ID, ShopKey);
            if (!owned) return; // block selecting locked
            _previewAgent = setup.ID;
            UpdateAgent();
        }

        private void OnSelectButton()
        {
            bool isSame = Context.PlayerData.AgentID == _previewAgent;
            if (isSame == false)
            {
                Context.PlayerData.AgentID = _previewAgent;
                _selectedEffect.SetActive(false);
                _selectedEffect.SetActive(true);
                PlaySound(_selectedSound);
                UpdateAgent();
                Invoke("CloseWithBack", _closeDelayAfterSelection);
            }
            else
            {
                CloseWithBack();
            }
        }

        private void UpdateAgent()
        {
            var agentSetups = Context.Settings.Agent.Agents;
            _agentList.Selection = Array.FindIndex(agentSetups, t => t.ID == _previewAgent);

            if (_agentList.Selection < 0)
            {
                int firstOwned = Array.FindIndex(agentSetups, t => ShopUnlocks.IsUnlocked(t.ID, ShopKey));
                _agentList.Selection = firstOwned >= 0 ? firstOwned : 0;
                _previewAgent = agentSetups[_agentList.Selection].ID;
            }

            if (_previewAgent.HasValue() == false)
            {
                Context.PlayerPreview.HideAgent();
                _agentName.text = string.Empty;
                _agentDescription.text = string.Empty;
                _selectButton.interactable = false;
            }
            else
            {
                var setup = Context.Settings.Agent.GetAgentSetup(_previewAgent);
                Context.PlayerPreview.ShowAgent(_previewAgent);
                _agentName.text = string.Format(_agentNameFormat, setup.DisplayName);
                _agentDescription.text = setup.Description;
                _selectButton.interactable = ShopUnlocks.IsUnlocked(_previewAgent, ShopKey);
            }

            _selectedAgentGroup.SetActive(_previewAgent == Context.PlayerData.AgentID);
        }
    }
}


//using System;
//using TMPro;
//using UnityEngine;
//using Cinemachine;
//using System.Collections.Generic;
//using System.Collections;

//namespace TPSBR.UI
//{
//    public class UIAgentSelectionView : UICloseView
//    {
//        [SerializeField] private CinemachineVirtualCamera _camera;
//        [SerializeField] private UIList _agentList;
//        [SerializeField] private UIButton _selectButton;
//        [SerializeField] private TextMeshProUGUI _agentName;
//        [SerializeField] private TextMeshProUGUI _agentDescription;
//        [SerializeField] private string _agentNameFormat = "{0}";
//        [SerializeField] private UIBehaviour _selectedAgentGroup;
//        [SerializeField] private UIBehaviour _selectedEffect;
//        [SerializeField] private AudioSetup _selectedSound;
//        [SerializeField] private float _closeDelayAfterSelection = 0.5f;

//        private string _previewAgent;
//        private const string ShopKey = "Characters";

//        protected override void OnInitialize()
//        {
//            base.OnInitialize();
//            _agentList.SelectionChanged += OnSelectionChanged;
//            _agentList.UpdateContent += OnListUpdateContent;
//            _selectButton.onClick.AddListener(OnSelectButton);
//        }

//        private void OnListUpdateContent(int index, MonoBehaviour content)
//        {
//            StartCoroutine(OnListUpdateContentRoutine(index, content));
//        }
//        IEnumerator OnListUpdateContentRoutine(int index, MonoBehaviour content)
//        {
//            yield return new WaitForSeconds(0.1f);
//            var behaviour = content as UIBehaviour;
//            var setup = Context.Settings.Agent.Agents[index];
//            behaviour.Image.sprite = setup.Icon;

//            bool unlocked = index == 0 || ShopUnlocks.IsUnlocked(setup.ID, ShopKey);
//            var item = content.GetComponentInParent<UIListItem>();
//            if (item != null) item.SetLocked(!unlocked);
//        }
//        protected override void OnOpen()
//        {
//            base.OnOpen();
//            _camera.enabled = true;
//            _selectedEffect.SetActive(false);

//            var agents = Context.Settings.Agent.Agents;
//            if (agents != null && agents.Length > 0)
//                ShopUnlocks.EnsureUnlocked(agents[0].ID, ShopKey);

//            _previewAgent = Context.PlayerData.AgentID;
//            _agentList.Refresh(agents.Length, false);
//            UpdateAgent();
//        }

//        protected override void OnClose()
//        {
//            _camera.enabled = false;
//            Context.PlayerPreview.ShowAgent(Context.PlayerData.AgentID);
//            base.OnClose();
//        }

//        protected override void OnDeinitialize()
//        {
//            _agentList.SelectionChanged -= OnSelectionChanged;
//            _agentList.UpdateContent -= OnListUpdateContent;
//            _selectButton.onClick.RemoveListener(OnSelectButton);
//            base.OnDeinitialize();
//        }

//        private void OnSelectionChanged(int index)
//        {
//            var setup = Context.Settings.Agent.Agents[index];
//            bool unlocked = index == 0 || ShopUnlocks.IsUnlocked(setup.ID, ShopKey);
//            if (!unlocked) return;
//            _previewAgent = setup.ID;
//            UpdateAgent();
//        }

//        private void OnSelectButton()
//        {
//            bool isSame = Context.PlayerData.AgentID == _previewAgent;
//            if (isSame == false)
//            {
//                Context.PlayerData.AgentID = _previewAgent;
//                _selectedEffect.SetActive(false);
//                _selectedEffect.SetActive(true);
//                PlaySound(_selectedSound);
//                UpdateAgent();
//                Invoke("CloseWithBack", _closeDelayAfterSelection);
//            }
//            else
//            {
//                CloseWithBack();
//            }
//        }

//        private void UpdateAgent()
//        {
//            var agentSetups = Context.Settings.Agent.Agents;
//            _agentList.Selection = Array.FindIndex(agentSetups, t => t.ID == _previewAgent);

//            if (_agentList.Selection < 0)
//            {
//                int firstUnlocked = Array.FindIndex(agentSetups, t => ShopUnlocks.IsUnlocked(t.ID, ShopKey));
//                _agentList.Selection = firstUnlocked >= 0 ? firstUnlocked : 0;
//                _previewAgent = agentSetups[_agentList.Selection].ID;
//            }

//            if (_previewAgent.HasValue() == false)
//            {
//                Context.PlayerPreview.HideAgent();
//                _agentName.text = string.Empty;
//                _agentDescription.text = string.Empty;
//                _selectButton.interactable = false;
//            }
//            else
//            {
//                var setup = Context.Settings.Agent.GetAgentSetup(_previewAgent);
//                Context.PlayerPreview.ShowAgent(_previewAgent);
//                _agentName.text = string.Format(_agentNameFormat, setup.DisplayName);
//                _agentDescription.text = setup.Description;
//                _selectButton.interactable = ShopUnlocks.IsUnlocked(_previewAgent, ShopKey);
//            }

//            _selectedAgentGroup.SetActive(_previewAgent == Context.PlayerData.AgentID);
//        }
//    }
//}