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

/// <summary>
/// 报警记录面板
/// 显示系统报警历史记录，支持滚动查看
/// </summary>
public class AlarmRecordPanel : BasePanel
{
    [Header("滚动列表")]
    public ScrollableListView AlarmListView; // 新的滚动列表组件
                                             // public RectTransform ContentRoot; // 保留兼容性
                                             // public GameObject RecordItemTemplate; // 预制体：包含Index, Priority, Reason, Time四个TMP文本

    [Header("操作按钮")]
    public Button HomeButton;
    public Button BackButton;
    public Button RefreshButton; // 刷新按钮
    public Button ClearButton; // 清空记录按钮
    
    [Header("状态显示")]
    public TextMeshProUGUI StatusText; // 状态文本
    public TextMeshProUGUI RecordCountText; // 记录数量文本

    public override void Init()
    {
        InitializeUI();
        Populate();
    }
    
    private void InitializeUI()
    {
        if (HomeButton != null)
            HomeButton.onClick.AddListener(() =>
            {
                ReturnToHome();
            });

        if (BackButton != null)
            BackButton.onClick.AddListener(() => ClosePanel());
        
        if (RefreshButton != null)
            RefreshButton.onClick.AddListener(OnRefreshClicked);
        
        if (ClearButton != null)
            ClearButton.onClick.AddListener(OnClearClicked);
        
        SetStatus("正在加载报警记录...", true);
    }
    

    
    private void SetStatus(string message, bool isSuccess)
    {
        if (StatusText != null)
        {
            StatusText.text = message;
            StatusText.color = isSuccess ? Color.green : Color.red;
        }
    }
    
    private void UpdateRecordCount(int count)
    {
        if (RecordCountText != null)
        {
            RecordCountText.text = $"共 {count} 条记录";
        }
    }
    
    private void OnRefreshClicked()
    {
        Populate();
        SetStatus("记录已刷新", true);
    }
    
    private void OnClearClicked()
    {
        // 显示确认对话框
        ConfirmDialog.ShowDeleteConfirm(
            "所有报警记录",
            () => ClearAllRecords(),
            () => Debug.Log("取消清空记录")
        );
    }
    
    private void ClearAllRecords()
    {
        // 优先使用DCSAlarmManager清空记录
        if (DCSAlarmManager.Instance != null)
        {
            DCSAlarmManager.Instance.ClearAlarmRecords();
        }
        
        // 清空UI显示
        if (AlarmListView != null)
        {
            AlarmListView.ClearItems();
        }
        
        UpdateRecordCount(0);
        SetStatus("记录已清空", true);
    }
    
    private void Populate()
    {
        var list = DCSAlarmManager.Instance.GetAlarmRecords(1000);
        if (list == null) 
        {
            SetStatus("无报警记录", false);
            UpdateRecordCount(0);
            return;
        }
        
        // 优先使用新的ScrollableListView
        if (AlarmListView != null)
        {
            PopulateWithScrollableList(list);
        }
        
        UpdateRecordCount(list.Count);
        SetStatus($"成功加载 {list.Count} 条记录", true);
    }
    
    private void PopulateWithScrollableList(IReadOnlyList<AlarmEvent> records)
    {
        AlarmListView.ClearItems();
        
        for (int i = 0; i < records.Count; i++)
        {
            var evt = records[i];
            var listItem = AlarmListView.AddItem(evt);
            if (listItem != null)
            {
                var alarmItem = listItem.gameObject.GetComponent<AlarmRecordItem>();
                alarmItem.Initialize(evt, i + 1);
            }
        }
        
        // 滚动到底部显示最新记录
        AlarmListView.ScrollToBottom();
    }
    
}