using System;
using Android.Webkit;
using System.Collections.Generic;

namespace Shared
{
    /// <summary>
    /// Button 按键
    /// </summary>
    public class MyEchartsView : View
    {
        JsonData jsonData = new JsonData { };
        public MyEchartsView()
        {
            webView = new MyWebView(Application.Activity, this);
            webView.SetWebViewClient(new MyWebViewClient
            {
                pageFinishedAction = () =>
                {
                    refresh($"javascript:loadEcharts({Newtonsoft.Json.JsonConvert.SerializeObject(jsonData)},'undefined')");
                }
            });

            webView.LoadUrl("file:///android_asset/Echarts/index.html");
        }
        public void Show(string title, string[] xArray, object[] yArray)
        {
            jsonData.Title = title;
            jsonData.XArray = xArray;
            jsonData.YArray = yArray;
            refresh($"javascript:refreshWithOption({ Newtonsoft.Json.JsonConvert.SerializeObject(jsonData)})");
        }

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

        /// <summary>
        /// 创新界面
        /// </summary>
        void refresh(string js)
        {
            if ((int)Android.OS.Build.VERSION.SdkInt < 18)
            {
                webView.LoadUrl(js);
            }
            else
            {
                webView.EvaluateJavascript(js, webView);
            }
        }

        MyWebView webView
        {
            get
            {
                return AndroidView as MyWebView;
            }
            set
            {
                AndroidView = value;
            }
        }

        internal class MyWebViewClient : Android.Webkit.WebViewClient
        {
            [Obsolete]
            public override bool ShouldOverrideUrlLoading(Android.Webkit.WebView view, string url)
            {
                view.LoadUrl(url);
                return true;
            }
            public override void OnPageFinished(WebView view, string url)
            {
                base.OnPageFinished(view, url);
                pageFinishedAction?.Invoke();
            }
            internal Action pageFinishedAction;
        }

        class MyWebView : Android.Webkit.WebView, IValueCallback
        {
            View view;
            public MyWebView(Android.Content.Context context, View view)
                : base(context)
            {
                this.view = view;
                SetBackgroundColor(Android.Graphics.Color.Transparent);
                Settings.AllowFileAccess = true;
                Settings.JavaScriptEnabled = true;
                HorizontalScrollBarEnabled = false;
                VerticalScrollBarEnabled = false;
                Settings.SetSupportZoom(true);
                Settings.JavaScriptCanOpenWindowsAutomatically = true;
            }

            public void OnReceiveValue(Java.Lang.Object value)
            {
                Shared.HDLUtils.WriteLine("Respone " + value);
            }
        }

        [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" } } } } };
        }
    }
}