using _29WxOrderWpf.CefHelper;
using CefSharp;
using CefSharp.Handler;
using CefSharp.Wpf;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows.Controls;
using Work._29Tools.CefTools;
using Work.BaseForms;
using WxOrder.Framework.Helpers;

namespace _29WxOrderWpf.Ctrls.PDDInvoice.ViewModels;

public partial class PDDInvoiceViewModel
{
	/// <summary>
	/// 内容浏览器
	/// 订单详情
	/// 发票详情
	/// 申请发票
	/// </summary>
	public ChromiumWebBrowser BrowserDetail { get; private set; }
	partial void InitBrowserDetail()
	{
		BrowserDetailZIndex = -1;

		BrowserDetail = WPFCEFBrowser.CreateChromiumWebBrowser("about:blank", false);
		LocalResourceRequestHandler resourceRequestHandler = new LocalResourceRequestHandler();

		LocalResourceRequestHandler detailResourceRequestHandler = new LocalResourceRequestHandler();
		detailResourceRequestHandler.ResourceLoadCompleteEvent += DetailRequestHandler_ResourceLoadComplete;
		BrowserDetail.RequestHandler = new LocalRequestHandler(resourceRequestHandler);
		BrowserDetail.LifeSpanHandler = new LocalLifeSpanHandler(PopWindowType.SelfWindow);
		BrowserDetail.KeyboardHandler = new KeyboardHandler();
		BrowserDetail.LoadingStateChanged += BrowserDetail_LoadingStateChanged;
	}
	public int BrowserDetailZIndex
	{
		get => GetValue<int>();
		set => SetValue(value);
	}
	/// <summary>
	/// 显示子浏览器
	/// </summary>
	public void ShowOrderBrowserDetail()
	{
		BrowserZIndex = -1;
		BrowserDetailZIndex = 10;
	}
	public void HidenOrderBrowserDetail()
	{
		BrowserDetailZIndex = -1;
	}
	private void BrowserDetail_LoadingStateChanged(object sender, LoadingStateChangedEventArgs e)
	{
		if (e.IsLoading == false)
		{
			var b = (ChromiumWebBrowser)sender;
			b.Dispatcher.InvokeAsync(async () =>
			{
				if (b.Address != null && b.Address.StartsWith("https://mobile.yangkeduo.com/transac_return_compensation.html"))
				{
					string orderSN = Regex.Match(b.Address, "order_sn=(?<sn>\\d+-\\d+)").Groups["sn"].Value;
					string html = await b.GetBrowser().GetSourceAsync();
					if (html.Contains("window.rawData"))
					{
						await ExecuteInvoiceApplyScriptAsync(b, orderSN);
					}
					else
					{
						// 页面异常（未渲染出发票表单）时直接判定失败，避免批量开票长时间等待
						_currentInvoiceTcs?.TrySetResult(false);
					}
				}
			});
		}
	}

	/// <summary>
	/// 注入发票填写脚本并执行。
	/// 单张申请模式保持原有行为；批量开票模式下轮询脚本写入的
	/// <c>window.__invoiceApplyResult</c>，完成后通过 <see cref="_currentInvoiceTcs"/> 回传结果。
	/// </summary>
	private async Task ExecuteInvoiceApplyScriptAsync(ChromiumWebBrowser b, string orderSn)
	{
		string content = ResourceHelper.GetResourceText("/Ctrls/PDDInvoice/Resources/invoice.js", "29WxFindOrder");
		content = content.Replace("{公司}", Config.Title);
		content = content.Replace("{税号}", Config.TaxNo);
		if (string.IsNullOrEmpty(content)) return;

		await b.EvaluateScriptAsync(content);

		if (_currentInvoiceTcs == null)
		{
			var temp = Orders?.FirstOrDefault(a => a.order_sn == orderSn);
			if (temp != null) temp.IsInvoiced = true;
			return; // 单张申请模式：保持原有行为
		}

		// 捕获当前 TCS，避免批量循环超时进入下一个订单后，迟到的轮询误触发新订单的结果
		var tcs = _currentInvoiceTcs;

		// 检查是否注入成功
		if (await IsInstalledDetailAsync(b) == false)
		{
			IsBatchInvoicing = false;
			BaseMsgForm.ShowError("JS错误，开票失败");
			tcs.TrySetResult(false);
			return;
		}




		for (int i = 0; i < 120; i++)
		{
			await Task.Delay(500);
			try
			{
				var res = await b.EvaluateScriptAsync("window.__invoiceApplyResult");
				if (res.Success && res.Result != null)
				{
					tcs.TrySetResult(Convert.ToBoolean(res.Result));
					return;
				}
			}
			catch
			{
			}
		}
		tcs.TrySetResult(false);
	}


	public async Task<bool> IsInstalledDetailAsync(ChromiumWebBrowser frame, int timeoutMs = 3000)
	{
		var deadline = DateTime.Now.AddMilliseconds(timeoutMs);
		while (DateTime.Now < deadline)
		{
			var r = await frame.EvaluateScriptAsync("!!(window.InvoiceApply && window.InvoiceApply.__installed)")
							   .ConfigureAwait(false);
			if (r != null && r.Success && r.Result is bool && (bool)r.Result) return true;
			await Task.Delay(100).ConfigureAwait(false);
		}
		return false;
	}

	private void DetailRequestHandler_ResourceLoadComplete(object sender, string url, string postData, string responseData, IRequest request)
	{
		if (url.StartsWith("https://mobile.yangkeduo.com/transac_return_compensation.html"))
		{

		}
	}
}