using System.Collections.Generic;
using AibisDream.Utility;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace AibisDream.UI.Terminal
{
    public class TerminalRecordPanel : MonoBehaviour
    {
        [SerializeField] private TerminalPanelAnimator panelAnimator;
        [SerializeField] private Button backButton;
        [SerializeField] private ScrollRect scrollRect;
        [SerializeField] private Transform recordRoot;
        [SerializeField] private TerminalRecordItemView recordItemPrefab;
        [SerializeField] private TMP_Text emptyText;

        private readonly List<LineInfo> _recordDataList = new List<LineInfo>();

        public bool IsOpen => gameObject.activeSelf;
        private TerminalPanel _owner;

        public void SetOwner(TerminalPanel owner)
        {
            _owner = owner;
        }

        private void Awake()
        {
            backButton?.onClick.AddListener(ReturnGame);
        }

        private void OnDestroy()
        {
            backButton?.onClick.RemoveListener(ReturnGame);
        }

        public void Show()
        {
            _owner?.SetHeader("<诊疗记录>", "EMR 511/42 - Clinical Record");
            DrawRecords();
            if (panelAnimator != null)
            {
                panelAnimator.Show();
            }
            else
            {
                gameObject.SetActive(true);
            }
        }

        public void Hide()
        {
            ClearRecordItems();
            if (panelAnimator != null)
            {
                panelAnimator.Hide();
            }
            else
            {
                gameObject.SetActive(false);
            }

        }

        public void AppendDialogLine(LineInfo lineInfo)
        {
            _recordDataList.Add(lineInfo);
        }

        public void ClearDialog()
        {
            _recordDataList.Clear();
        }

        private void DrawRecords()
        {
            ClearRecordItems();
            var hasRecords = _recordDataList.Count > 0;
            if (emptyText != null)
            {
                emptyText.gameObject.SetActive(!hasRecords);
            }

            foreach (var recordData in _recordDataList)
            {
                var item = Instantiate(recordItemPrefab, recordRoot);
                item.Init(recordData);
            }

            if (scrollRect != null)
            {
                scrollRect.verticalNormalizedPosition = 0f;
            }
        }

        private void ClearRecordItems()
        {
            if (recordRoot != null)
            {
                recordRoot.DestroyAllChildren();
            }
        }

        private void ReturnGame()
        {
            _owner.Back();
        }
    }
}