using UnityEngine;
using UnityEditor;
using UnityEngine.UIElements;
using UnityEditor.UIElements;
using System.Net;
using System.Net.Sockets;

[CustomEditor(typeof(StreamDeckServerManager))]
public class StreamDeckServerManagerEditor : Editor
{
    private const string UxmlPath = "Assets/Scripts/Streamdeck/Editor/UXML/StreamDeckServerManagerEditor.uxml";
    private const string UssPath = "Assets/Scripts/Streamdeck/Editor/UXML/StreamDeckServerManagerEditor.uss";
    private const string CommonUssPath = "Assets/Scripts/Streamingle/StreamingleControl/Editor/UXML/StreamingleCommon.uss";

    private StreamDeckServerManager manager;
    private VisualElement playStatusContainer;
    private Label playStatusLabel;
    private Label lanIPLabel;
    private Label dashboardUrlLabel;
    private VisualElement dashboardPortField;

    public override VisualElement CreateInspectorGUI()
    {
        manager = (StreamDeckServerManager)target;
        var root = new VisualElement();

        // Load stylesheets
        var commonUss = AssetDatabase.LoadAssetAtPath<StyleSheet>(CommonUssPath);
        if (commonUss != null) root.styleSheets.Add(commonUss);

        var uss = AssetDatabase.LoadAssetAtPath<StyleSheet>(UssPath);
        if (uss != null) root.styleSheets.Add(uss);

        // Load UXML
        var uxml = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>(UxmlPath);
        if (uxml != null) uxml.CloneTree(root);

        // Cache references
        playStatusContainer = root.Q("playStatusContainer");
        playStatusLabel = root.Q<Label>("playStatusLabel");
        lanIPLabel = root.Q<Label>("lanIPLabel");
        dashboardUrlLabel = root.Q<Label>("dashboardUrlLabel");
        dashboardPortField = root.Q("dashboardPortField");

        // Open Dashboard button (LAN IP 우선)
        var openBtn = root.Q<Button>("openDashboardBtn");
        if (openBtn != null)
            openBtn.clicked += () =>
            {
                string ip = GetLocalIPAddress();
                string host = !string.IsNullOrEmpty(ip) ? ip : "localhost";
                Application.OpenURL($"http://{host}:{manager.dashboardPort}");
            };

        // LAN IP detection
        string lanIP = GetLocalIPAddress();
        if (lanIPLabel != null)
            lanIPLabel.text = !string.IsNullOrEmpty(lanIP) ? $"LAN IP: {lanIP}" : "LAN IP: not available";

        UpdateDashboardUrl(lanIP);

        // Track enableDashboard for conditional visibility
        var enableProp = serializedObject.FindProperty("enableDashboard");
        UpdateDashboardPortVisibility(enableProp.boolValue);
        root.TrackPropertyValue(enableProp, prop => UpdateDashboardPortVisibility(prop.boolValue));

        // Track port changes to update URL display
        var dashboardPortProp = serializedObject.FindProperty("dashboardPort");
        var wsPortProp = serializedObject.FindProperty("port");
        root.TrackPropertyValue(dashboardPortProp, _ => UpdateDashboardUrl(lanIP));
        root.TrackPropertyValue(wsPortProp, _ => UpdateDashboardUrl(lanIP));

        // Play mode polling
        root.schedule.Execute(UpdatePlayModeState).Every(500);

        return root;
    }

    private void UpdateDashboardUrl(string lanIP)
    {
        if (dashboardUrlLabel == null || manager == null) return;

        string local = $"http://localhost:{manager.dashboardPort}";
        if (!string.IsNullOrEmpty(lanIP))
            dashboardUrlLabel.text = $"{local}  |  http://{lanIP}:{manager.dashboardPort}";
        else
            dashboardUrlLabel.text = local;
    }

    private void UpdateDashboardPortVisibility(bool enabled)
    {
        if (dashboardPortField == null) return;
        dashboardPortField.style.display = enabled ? DisplayStyle.Flex : DisplayStyle.None;
    }

    private void UpdatePlayModeState()
    {
        if (playStatusContainer == null || manager == null) return;

        bool isPlaying = Application.isPlaying;
        if (isPlaying)
        {
            if (!playStatusContainer.ClassListContains("sdm-play-status--visible"))
                playStatusContainer.AddToClassList("sdm-play-status--visible");

            if (playStatusLabel != null)
                playStatusLabel.text = $"Running ({manager.ConnectedClientCount} clients)";
        }
        else
        {
            if (playStatusContainer.ClassListContains("sdm-play-status--visible"))
                playStatusContainer.RemoveFromClassList("sdm-play-status--visible");
        }
    }

    private static string GetLocalIPAddress()
    {
        try
        {
            var host = Dns.GetHostEntry(Dns.GetHostName());
            foreach (var ip in host.AddressList)
            {
                if (ip.AddressFamily == AddressFamily.InterNetwork)
                    return ip.ToString();
            }
        }
        catch { }
        return "";
    }
}