using UIKit;
using Foundation;
using Shared.IO;
using CoreFoundation;
using System.Collections.Generic;
using System;
using System.Runtime;
using WebKit;

namespace Shared
{
    /// <summary>
    /// MyEchartsView
    /// 2020-06-19 UIWebView替换为WKWebView
    /// UIWebView已经弃用，后面再使用的APP将不能发布上架
    /// </summary>
    public class MyEchartsView : View
    {
        JsonData jsonData = new JsonData { };
        WKWebView uIWebView;
        public MyEchartsView()
        {
            //默认布局，宽高为0的话会异常
            var mFrame = new CoreGraphics.CGRect(base.X, base.Y, 10, 10);
            uIWebView = new WKWebView(mFrame, new WKWebViewConfiguration()) { };
            uiView = uIWebView;
            uIWebView.ScrollView.Bounces = false;
            uIWebView.ScrollView.ScrollEnabled = false;
            uIWebView.NavigationDelegate = new OnWKNavigationDelegate(this);
            var filePath = NSBundle.MainBundle.PathForResource("echarts", "html");
            var url = new NSUrl(filePath, false);
            uIWebView.LoadFileUrl(url, url);
        }

        public void Show(string title, string[] xArray, object[] yArray)
        {
            jsonData.Title = title;
            jsonData.XArray = xArray;
            jsonData.YArray = yArray;
            EvaluateJavascript();
        }

        public string Unit
        {
            get
            {
                return jsonData.Unit;
            }
            set
            {
                jsonData.Unit = value;
            }
        }

        public void EvaluateJavascript()
        {
            WKJavascriptEvaluationResult handler = (NSObject result, NSError err) => {
                if (err != null)
                {
                    HDLUtils.WriteLine("EvaluateJavascript:" + err);
                }
                if (result != null)
                {
                    HDLUtils.WriteLine("EvaluateJavascript:" + result);
                }
            };
            uIWebView.EvaluateJavaScript($"loadEcharts({Newtonsoft.Json.JsonConvert.SerializeObject(jsonData)},'undefined')", handler);

        }


        public class OnWKNavigationDelegate : WKNavigationDelegate
        {
            [Weak] MyEchartsView _MyEchartsView;

            public OnWKNavigationDelegate(MyEchartsView view)
            {
                _MyEchartsView = view;
            }


            public override void DidFinishNavigation(WKWebView webView, WKNavigation navigation)
            {
                Console.WriteLine("WKWebView DidFinishNavigation");
                _MyEchartsView.EvaluateJavascript();
            }
        }


        [Serializable]
        class JsonData
        {
            /// <summary>
            /// 标题内容
            /// </summary>
            /// <value>The title.</value>
            [Newtonsoft.Json.JsonIgnore]
            public string Title
            {
                get
                {
                    return title["text"].ToString();
                }
                set
                {
                    title["text"] = value;
                }
            }
            [Newtonsoft.Json.JsonProperty]
            readonly Dictionary<string, object> title = new Dictionary<string, object> { ["text"] = "" };
            [Newtonsoft.Json.JsonProperty]
            readonly Dictionary<string, object> tooltip = new Dictionary<string, object> { ["trigger"] = "axis" };
            /// <summary>
            /// X轴坐标点
            /// </summary>
            /// <value>The XA rray.</value>
            [Newtonsoft.Json.JsonIgnore]
            public string[] XArray
            {
                get
                {
                    return (xAxis[0] as Dictionary<string, object>)["data"] as string[];
                }
                set
                {
                    (xAxis[0] as Dictionary<string, object>)["data"] = value;
                }
            }
            [Newtonsoft.Json.JsonProperty]
            readonly List<object> xAxis = new List<object> { new Dictionary<string, object> { ["type"] = "category", ["boundaryGap"] = false, ["data"] = new object[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 } } };
            [Newtonsoft.Json.JsonIgnore]
            public string Unit
            {
                get
                {
                    return ((yAxis[0] as Dictionary<string, object>)["axisLabel"] as Dictionary<string, object>)["formatter"].ToString().Substring("{value}".Length);
                }
                set
                {
                    ((yAxis[0] as Dictionary<string, object>)["axisLabel"] as Dictionary<string, object>)["formatter"] = "{value}" + value;
                }
            }
            [Newtonsoft.Json.JsonProperty]
            readonly List<object> yAxis = new List<object> { new Dictionary<string, object> { ["type"] = "value", ["axisLabel"] = new Dictionary<string, object> { ["formatter"] = "{value}" } } };
            /// <summary>
            /// Y轴坐标点
            /// </summary>
            /// <value>The YA rray.</value>
            [Newtonsoft.Json.JsonIgnore]
            public object[] YArray
            {
                get
                {
                    return (series[0] as Dictionary<string, object>)["data"] as object[];
                }
                set
                {
                    (series[0] as Dictionary<string, object>)["data"] = value;
                }
            }
            [Newtonsoft.Json.JsonProperty]
            readonly List<object> series = new List<object> { new Dictionary<string, object> { ["name"] = "Value", ["type"] = "line", ["data"] = new object[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, ["markPoint"] = new Dictionary<string, object> { ["data"] = new List<object> { new Dictionary<string, object> { ["type"] = "max", ["name"] = "Max" }, new Dictionary<string, object> { ["type"] = "min", ["name"] = "Min" } } }, ["markLine"] = new Dictionary<string, object> { ["data"] = new List<object> { new Dictionary<string, object> { ["type"] = "average", ["name"] = "Average" } } } } };
        }
    }
}