using System;
using System.Linq;
using AlicizaX.AnimationFlow.Runtime;
using UnityEditor;
using UnityEditor.Experimental.GraphView;
using UnityEngine;
using UnityEngine.UIElements;
using static UnityEditor.Experimental.GraphView.Port;

namespace AlicizaX.AnimationFlow.Editor {
    public class NodeView : Node {
        public readonly ActionNode actionNode;
        public Port portIn;
        public Port portOut;
        private readonly GraphWindow graphWindow;
        private ProgressBar progressPlaying;
        private Image imageComplete;
        private Image imageWarning;
        private Label sub_title;

        public NodeView(ActionNode node, GraphWindow graphWindow) {
            this.actionNode = node;
            this.graphWindow = graphWindow;
            Draw();
        }
        private void Draw() {
            Type type = actionNode.GetType();
            NameAttribute nameAttribute = type.GetCustomAttributes(typeof(NameAttribute), true).FirstOrDefault() as NameAttribute;
            title = nameAttribute != null && !string.IsNullOrEmpty(nameAttribute.name) ? nameAttribute.name : type.Name;
            if (actionNode.HasInputPort()) {
                portIn = InstantiatePort(Orientation.Horizontal, Direction.Input, actionNode.MultiInputPort() ? Capacity.Multi : Capacity.Single, typeof(bool));
                inputContainer.Add(portIn);
                portIn.portName = "in";
            }
            if (actionNode.HasOutPort()) {
                portOut = InstantiatePort(Orientation.Horizontal, Direction.Output, actionNode.MultiOutPort() ? Capacity.Multi : Capacity.Single, typeof(bool));
                outputContainer.Add(portOut);
                portOut.portName = "out";
            }
            titleContainer.Remove(titleButtonContainer);
            imageComplete = new() {
                image = AssetDatabase.LoadAssetAtPath<Texture2D>(EditorResourceTool.editorAssets + "/Complete.png"),
                tintColor = new Color(0.4f, 0.7f, 0.2f),
                style = { marginLeft = 3, marginRight = 10, visibility = Visibility.Hidden }
            };
            titleContainer.Add(imageComplete);

            imageWarning = new() {
                image = AssetDatabase.LoadAssetAtPath<Texture2D>(EditorResourceTool.editorAssets + "/Warning.png"),
                tintColor = Color.red,
                style = { position = Position.Absolute, right = 0, top = 5 }
            };
            titleContainer.Add(imageWarning);

            RefreshState();

            if (actionNode.HasSubTitle()) {
                sub_title = new(actionNode.SubTitle()) {
                    style = { fontSize = 12, paddingLeft = 8, paddingBottom = 5, backgroundColor = new Color(0.23f, 0.23f, 0.23f, 1f) }
                };
                this.Q<VisualElement>("node-border").Insert(1, sub_title);
            }
            this.Q<VisualElement>("title").style.height = 25;
        }

        public void RefreshState() {
            imageWarning.style.visibility = actionNode.Valid() ? Visibility.Hidden : Visibility.Visible;
            if (sub_title != null) {
                if (string.IsNullOrEmpty(actionNode.SubTitle())) {
                    sub_title.text = "<Empty>";
                    sub_title.style.color = Color.red;
                } else {
                    sub_title.text = actionNode.SubTitle();
                    sub_title.style.color = new Color(0.82f, 0.82f, 0.82f, 1f);
                }
            }
        }

        public void AddComplete() {
            imageComplete.style.visibility = Visibility.Visible;
        }

        public void RemoveComplete() {
            imageComplete.style.visibility = Visibility.Hidden;
        }

        public void AddProgress() {
            if (actionNode.Duration() == 0) {
                return;
            }
            progressPlaying = new();
            progressPlaying.style.height = 10;
            contentContainer.Add(progressPlaying);
            progressPlaying.highValue = actionNode.Duration();
            progressPlaying.value = 0;
            RefreshExpandedState();
        }

        public void UpdateProgress() {
            if (actionNode.Duration() == 0) {
                return;
            }
            if (progressPlaying == null) {
                AddProgress();
            }
            progressPlaying.value = actionNode.elapsedTime;
        }

        public void RemoveProgress() {
            if (progressPlaying == null) {
                return;
            }
            contentContainer.Remove(progressPlaying);
            progressPlaying = null;
            RefreshExpandedState();
        }

        public override void OnSelected() {
            base.OnSelected();
            graphWindow.OnSelect(this);
        }
    }
}