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

public class TopBarComponent : MonoBehaviour
{
	[Header("信息显示")]
	public TextMeshProUGUI PatientInfoText;
	public TextMeshProUGUI AlarmInfoText;
	public TextMeshProUGUI BatteryText;
	// public TextMeshProUGUI ACText;

    [Header("报警灯")]
    public AlarmLightComponent AlarmLight;
    
	[Header("电量显示")]
    public Slider BatterySlider;
	public Image BatteryFillImage;
	public Sprite[] BatteryFillSprites; // 不同电量段的图片 


    private IPatientInfoService _patientInfoService;
	private ISerialCommunicationService _serialService;
	private IAuthenticationService _authService;
	private bool _lastLoginState;
	private float _lastLoginStateCheckTime;
	private const float LOGIN_STATE_CHECK_INTERVAL = 0.5f;

    void Start()
    {
		_patientInfoService = ServiceLocator.Get<IPatientInfoService>();
		_serialService = ServiceLocator.Get<ISerialCommunicationService>();
		_authService = ServiceLocator.Get<IAuthenticationService>();

		// 订阅DCSAlarmManager的报警事件
		DCSAlarmManager.OnAlarmRaised += OnDCSAlarmRaised;
		DCSAlarmManager.OnAlarmCleared += OnAllAlarmsCleared;
		// DCSAlarmManager.OnMuteStateChanged += UpdateMuteButtonText;

		if (_patientInfoService != null)
		{
			_patientInfoService.OnPatientInfoChanged += LoadPatientInfo;
		}

		if (_serialService != null)
		{
			_serialService.OnDeviceStatusReceived += OnSerialDeviceStatusReceived;
		}

		if (BatteryText != null && string.IsNullOrEmpty(BatteryText.text))
		{
			BatteryText.text = "电量: --";
		}

		_lastLoginState = IsUserLoggedIn();
		if (!_lastLoginState)
		{
			ClearAlarmDisplay();
		}
    }


	void Update()
	{
		if (Time.unscaledTime - _lastLoginStateCheckTime < LOGIN_STATE_CHECK_INTERVAL)
		{
			return;
		}

		_lastLoginStateCheckTime = Time.unscaledTime;
		bool isLoggedIn = IsUserLoggedIn();
		if (isLoggedIn == _lastLoginState)
		{
			return;
		}

		_lastLoginState = isLoggedIn;
		if (isLoggedIn)
		{
			RestoreActiveAlarmAfterLogin();
		}
		else
		{
			ClearAlarmDisplay();
		}
	}


	private bool IsUserLoggedIn()
	{
		return _authService != null && _authService.IsLoggedIn;
	}


	private void RestoreActiveAlarmAfterLogin()
	{
		if (DCSAlarmManager.Instance == null)
		{
			OnAllAlarmsCleared();
			return;
		}

		var activeAlarms = DCSAlarmManager.Instance.GetActiveAlarms();
		if (activeAlarms == null || activeAlarms.Count == 0)
		{
			OnAllAlarmsCleared();
			return;
		}

		AlarmPriority highestPriority = AlarmPriority.None;
		string message = string.Empty;
		for (int i = 0; i < activeAlarms.Count; i++)
		{
			var current = activeAlarms[i];
			if (current.priority >= highestPriority)
			{
				highestPriority = current.priority;
				message = current.message;
			}
		}

		if (highestPriority != AlarmPriority.None)
		{
			OnDCSAlarmRaised(highestPriority, message);
		}
	}


	private void ClearAlarmDisplay()
	{
		if (AlarmInfoText != null)
		{
			AlarmInfoText.text = string.Empty;
		}

		if (AlarmLight != null)
		{
			AlarmLight.SetAlarmState(AlarmPriority.None, false);
		}
	}


	private void LoadPatientInfo(PatientInfo patient)
	{
		if (PatientInfoText == null)
		{
			return;
		}

		if (patient != null)
		{
			string ageText = patient.Age > 0 ? $"{patient.Age}岁" : "-";
			string heightText = patient.Height > 0f ? $"{patient.Height:F1}cm" : "-";
			string weightText = patient.Weight > 0f ? $"{patient.Weight:F1}kg" : "-";
			string genderText = string.IsNullOrEmpty(patient.Gender) ? "-" : patient.Gender;

			PatientInfoText.text =
				$"姓名: {patient.Name}  住院号: {patient.HospitalId}\n";
		}
		else
		{
			PatientInfoText.text = "未设置病人信息";
		}
	}


    /// <summary>
    /// 所有报警清除后显示健康状态
    /// </summary>
    private void OnAllAlarmsCleared()
    {
		ClearAlarmDisplay();
    }
	

    /// <summary>
	/// 处理DCSAlarmManager的报警事件
	/// </summary>
	private void OnDCSAlarmRaised(AlarmPriority priority, string reason)
	{
		if (!IsUserLoggedIn())
		{
			return;
		}

		if (AlarmInfoText != null)
		{
			var color = priority == AlarmPriority.High ? "#FF0000" : (priority == AlarmPriority.Medium ? "#FFFF00" : "#FFFFAA");
			// AlarmInfoText.text = $"<color={color}>{reason}</color>";
			AlarmInfoText.text = $"{reason}";
		}
		
		// 更新报警灯
		if (AlarmLight != null)
		{
			AlarmLight.SetAlarmState(priority, true);
		}
		

		// Debug.Log($"收到DCS报警 - [{priority}] {reason}");
	}


	/// <summary>
	/// 处理串口设备状态数据（来自SerialCommunicationService）
	/// </summary>
	private void OnSerialDeviceStatusReceived(DeviceStatusData status)
	{
		
		// 更新电池显示
		if (BatteryText != null)
		{
			BatteryText.text = $"电量: {status.BatteryLevel}%";
			// if (status.PowerType == 1)
			// {
			// 	if (ACText != null)
			// 	{
			// 		ACText.gameObject.SetActive(true);
			// 		ACText.text = "未连接交流电";
			// 		ACText.color = Color.yellow;
			// 	}
			// }
			// else
			// {
			// 	if (ACText != null)
			// 	{
			// 		ACText.gameObject.SetActive(false);
			// 	}
			// }
		}

		if (BatteryFillImage != null && BatteryFillSprites != null && BatteryFillSprites.Length >= 4)
		{
			if (status.BatteryLevel > 90)
			{
				BatteryFillImage.sprite = BatteryFillSprites[0];
			}
			else if (status.BatteryLevel > 60)
			{
				BatteryFillImage.sprite = BatteryFillSprites[1];
			}
			else if (status.BatteryLevel > 20)
			{
				BatteryFillImage.sprite = BatteryFillSprites[2];
			}
			else
			{
				BatteryFillImage.sprite = BatteryFillSprites[3];
			}
		}

		
		if (BatterySlider != null)
		{
			BatterySlider.value = Mathf.Clamp01(status.BatteryLevel / 100f);
		}
		

	}


	void OnDestroy()
	{
		
		// 取消订阅DCSAlarmManager事件
		DCSAlarmManager.OnAlarmRaised -= OnDCSAlarmRaised;
		DCSAlarmManager.OnAlarmCleared -= OnAllAlarmsCleared;
		// DCSAlarmManager.OnMuteStateChanged -= UpdateMuteButtonText;

		if (_patientInfoService != null)
		{
			_patientInfoService.OnPatientInfoChanged -= LoadPatientInfo;
		}
		
		if (_serialService != null)
		{
			_serialService.OnDeviceStatusReceived -= OnSerialDeviceStatusReceived;
		}

	} 
}