using HTEXScreen.Service;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using PuppeteerSharp;
using PuppeteerSharp.Media;
using System.Configuration;
using System.Drawing;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Text.Json;
using System.Text.RegularExpressions;
using System.Web;
using TEAMModelOS.SDK.DI;

namespace HTEX.Screen.Controllers
{
    [ApiController]
    [Route("screen")]
    public class ScreenController : ControllerBase
    {
        private readonly AzureStorageFactory _azureStorage;
        private readonly HttpClient _httpClient;
        private readonly IConfiguration _configuration;
        //  private readonly HttpContext _httpContext;
        public ScreenController(HttpClient httpClient, AzureStorageFactory azureStorage, IConfiguration configuration)
        {
            _httpClient = httpClient;
            _azureStorage = azureStorage;
            _configuration = configuration;
            //   _httpContext=httpContext;
        }


        /// <summary>
        ///  上传到blob
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpPost("from-miniapp-delete")]
        [Authorize(Roles = "AClassONE")]
        [RequestSizeLimit(102_400_000_00)] //最大10000m左右
        public async Task<IActionResult> FromMiniAPPDelete(JsonElement json)
        {

            List<string>? urls = json.GetProperty("urls").Deserialize<List<string>>();
            string? cnt = json.GetProperty("cnt").GetString();
            string? test = json.GetProperty("test").GetString();
            if (urls!=null)
            {
                foreach (var url in urls)
                {
                    string dev = "Default";
                    if (test.Equals("Test", StringComparison.OrdinalIgnoreCase))
                    {
                        dev="Test";
                    }
                    string uri = url.Split("?")[0];
                    var blobinfo = BlobUrlString(uri);
                    if (blobinfo.ContainerName.Equals(cnt))
                    {
                        var uld = HttpUtility.UrlDecode(blobinfo.blob);
                        bool ds = await _azureStorage.GetBlobContainerClient(cnt, dev).DeleteBlobIfExistsAsync(uld);
                    }
                }
            }
            return Ok();
        }
        private static (string ContainerName, string blob) BlobUrlString(string sasUrl)
        {
            sasUrl = sasUrl.Substring(8);
            string[] sasUrls = sasUrl.Split("/");
            string ContainerName;
            ContainerName = sasUrls[1].Clone().ToString();
            string item = sasUrls[0] + "/" + sasUrls[1] + "/";
            string blob = sasUrl.Replace(item, "");
            return (ContainerName, blob);
        }
        /// <summary>
        ///  上传到blob
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpPost("from-miniapp-v2")]
        [Authorize(Roles = "AClassONE")]
        [RequestSizeLimit(102_400_000_00)] //最大10000m左右
        public async Task<IActionResult> FromMiniAPPV2()
        {

            try
            {
                List<dynamic> urls = new List<dynamic>();
                var request = HttpContext.Request;
                var files = request.Form.Files;
                var cnt = request.Form["cnt"].ToString();
                var test = request.Form["test"].ToString();
                var path = request.Form["path"].ToString();
                foreach (var file in files)
                {

                    string dev = "Default";
                    if (test.Equals("Test", StringComparison.OrdinalIgnoreCase))
                    {
                        dev="Test";
                    }
                    if (path.EndsWith("/"))
                    {
                        path=path.Substring(0, path.Length -1);
                    }
                    (string name, string url) = await _azureStorage.GetBlobContainerClient(cnt, dev).UploadFileByContainerBName(file.OpenReadStream(), path, $"{file.FileName}", true);
                    var auth = _azureStorage.GetBlobContainerClient(cnt, dev).GetBlobSasUriRead(_configuration, cnt, name, dev);
                    var ext = file.FileName.Split(".");
                    urls.Add(new { url = $"{url}?{auth.sas}", name = file.FileName, size = file.Length, extension = ext[ext.Length-1], type = file.ContentType.Split("/")[0], blob = name, cnt = cnt });
                }
                return Ok(new { code = 200, urls, });
            }
            catch (Exception vErr)
            {
                return Ok(new { code = 500, msg = vErr.Message });
            }
        }
        /// <summary>
        ///  上传到blob
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpPost("from-miniapp")]
        [Authorize(Roles = "AClassONE")]
        [RequestSizeLimit(102_400_000_00)] //最大10000m左右
        public async Task<IActionResult> FromMiniAPP([FromForm] IFormFile[] files, [FromForm] string path, [FromForm] string cnt, [FromForm] string test)
        {
            List<string> urls = new List<string>();
            foreach (var file in files)
            {
                string dev = "Default";
                if (test.Equals("Test", StringComparison.OrdinalIgnoreCase))
                {
                    dev="Test";
                }
                if (path.EndsWith("/"))
                {
                    path=path.Substring(0, path.Length -1);
                }
                (string name, string url) = await _azureStorage.GetBlobContainerClient(cnt, dev).UploadFileByContainerBName(file.OpenReadStream(), path, $"{file.FileName}", true);
                var auth = _azureStorage.GetBlobContainerClient(cnt, dev).GetBlobSasUriRead(_configuration, cnt, name, dev);
                urls.Add($"{url}?{auth.sas}");
            }
            return Ok(new { urls });
        }


        [HttpGet("download")]
        public async Task<IActionResult> Download([FromQuery] ScreenshotDto screenshot)
        {
            try
            {
                HttpResponseMessage response = await _httpClient.GetAsync(screenshot.url);
                if (!string.IsNullOrWhiteSpace(screenshot?.url))
                {
                    string? url = screenshot?.url;
                    string[] path = url.Split("/");
                    string fileName = path[path.Length - 1];
                    fileName=HttpUtility.UrlDecode(fileName);
                    Stream stream = response.Content.ReadAsStream();
                    if (!Directory.Exists("Download"))
                    {
                        Directory.CreateDirectory("Download");
                    }
                    FileStream fs = new FileStream($"Download/{fileName}", FileMode.Create);
                    byte[] bytes = new byte[stream.Length];
                    stream.Read(bytes, 0, bytes.Length);
                    stream.Seek(0, SeekOrigin.Begin);
                    BinaryWriter bw = new BinaryWriter(fs);
                    bw.Write(bytes);
                    bw.Close();
                    fs.Close();
                    return Ok(screenshot);
                }
                else
                {
                    return Ok("链接为空");
                }
            }
            catch (Exception ex)
            {
                return Ok($"{ex.Message}{ex.StackTrace}");
            }
        }

        /// <summary>
        /// C#使用Puppeteer  http://t.zoukankan.com/zhaotianff-p-13528507.html
        ///  文档https://learnku.com/docs/puppeteer/3.1.0/class-request/8559
        ///  https://www.w3cschool.cn/puppeteer/puppeteer-gp1737se.html
        /// </summary>
        /// <param name="screenshot"></param>
        /// <returns></returns>
        [HttpGet("screenshot-png")]
        public async Task<IActionResult> ScreenshotPng([FromQuery] ScreenshotDto screenshot)
        {

            //  进入容器的命令 docker exec -it f9e27d175498 /bin/bash

            //依赖包 https://blog.csdn.net/weixin_45447477/article/details/115188938
            //sudo apt-get install  libgdk-pixbuf2.0-0 libgdk-pixbuf-xlib-2.0-0  libdbusmenu-gtk3-4  libdbusmenu-glib4 libindicator3-7  ca-certificates fonts-liberation libappindicator3-1 libasound2 libatk-bridge2.0-0 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgbm1 libgcc1 libglib2.0-0 libgtk-3-0 libnspr4 libnss3 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 lsb-release wget xdg-utils -y
            //解决ubuntu18上使用puppeteer https://blog.csdn.net/qq_42414062/article/details/114539378

            //https://www.hardkoded.com/blog/running-puppeteer-sharp-azure-functions  使用。
            //string url = "https://teammodelos.blob.core.chinacloudapi.cn/0-public/pie-borderRadius.html";
            try
            {

                var bfOptions = new BrowserFetcherOptions();
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
                {
                    string dir = "/app";
                    if (!Directory.Exists(dir))
                    {
                        Directory.CreateDirectory(dir);
                    }
                    bfOptions.Path = dir;
                }
                var bf = new BrowserFetcher(bfOptions);
                var revisionInfo = bf.DownloadAsync(BrowserFetcher.DefaultChromiumRevision).Result;
                string BrowserExecutablePath = revisionInfo.ExecutablePath;
                var browser = await Puppeteer.LaunchAsync(new LaunchOptions
                {
                    ExecutablePath = BrowserExecutablePath,
                    Headless = true,
                    Args = new string[] { "--no-sandbox", "--disable-setuid-sandbox" }
                });
                var page = await browser.NewPageAsync();
                bool fullPage = true;
                await page.SetViewportAsync(new ViewPortOptions
                {
                    Width = screenshot.width,
                    Height = screenshot.height
                }); ;
                fullPage = false;
                await page.GoToAsync(System.Web.HttpUtility.UrlDecode(screenshot.url));
                await Task.Delay(screenshot.delay);
                string base64 = await page.ScreenshotBase64Async(new ScreenshotOptions { FullPage = fullPage, BurstMode = true });
                //关闭浏览器
                await browser.CloseAsync();
                await browser.DisposeAsync();
                return Ok(new { url = base64, type = "data:image/png;base64," });
            }
            catch (Exception ex)
            {
                return BadRequest($"{ex.Message}\n{ex.StackTrace}");
            }
        }
        [HttpPost("screenshot-pdf")]
        public async Task<IActionResult> ScreenshotPdf(ScreenshotDto screenshot)
        {

            //W3C School教程 https://www.w3cschool.cn/puppeteer/puppeteer-rip537tj.html
            //  进入容器的命令 docker exec -it f9e27d175498 /bin/bash

            //依赖包 https://blog.csdn.net/weixin_45447477/article/details/115188938
            //sudo apt-get install  libgdk-pixbuf2.0-0 libgdk-pixbuf-xlib-2.0-0  libdbusmenu-gtk3-4  libdbusmenu-glib4 libindicator3-7  ca-certificates fonts-liberation libappindicator3-1 libasound2 libatk-bridge2.0-0 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgbm1 libgcc1 libglib2.0-0 libgtk-3-0 libnspr4 libnss3 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 lsb-release wget xdg-utils -y
            //解决ubuntu18上使用puppeteer https://blog.csdn.net/qq_42414062/article/details/114539378

            //https://www.hardkoded.com/blog/running-puppeteer-sharp-azure-functions  使用。
            //string url = "https://teammodelos.blob.core.chinacloudapi.cn/0-public/pie-borderRadius.html";
            Browser browser = null;
            try
            {

                var bfOptions = new BrowserFetcherOptions();
                if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
                {
                    string dir = "/app";
                    if (!Directory.Exists(dir))
                    {
                        Directory.CreateDirectory(dir);
                    }
                    bfOptions.Path = dir;
                }
                var bf = new BrowserFetcher(bfOptions);
                var revisionInfo = bf.DownloadAsync(BrowserFetcher.DefaultChromiumRevision).Result;
                string BrowserExecutablePath = revisionInfo.ExecutablePath;
                browser = await Puppeteer.LaunchAsync(new LaunchOptions
                {
                    ExecutablePath = BrowserExecutablePath,
                    Headless = true,
                    Args = new string[] { "--no-sandbox", "--disable-setuid-sandbox" }
                });
                double unitPX = 37.7813;
                ViewPortOptions viewPortOptions = new ViewPortOptions
                {
                    // Width = (int)Math.Ceiling(unitPX * 21),
                    //  Height = (int)Math.Ceiling(unitPX * 29.7 * 1)
                };
                //ViewPortOptions viewPortOptions = new ViewPortOptions
                //{
                //    Width = screenshot.width,
                //    Height = screenshot.height
                //};
                PdfOptions pdfOptions = new PdfOptions { DisplayHeaderFooter = true, FooterTemplate = "", PreferCSSPageSize = true, Format = PaperFormat.A4 };
                //ScreenshotOptions screenshotOptions= new ScreenshotOptions { FullPage = fullPage, BurstMode = true };
                List<(string name, string url)> urls = new List<(string name, string url)>();

                if (screenshot.urls.Count <= screenshot.pagesize)
                {
                    urls.AddRange(await PageToPdfStream(screenshot.urls, screenshot.fileNameKey, screenshot.cnt, screenshot.root, screenshot.env, browser, viewPortOptions, pdfOptions));
                }
                else
                {
                    List<Task<List<(string name, string url)>>> tasks = new List<Task<List<(string name, string url)>>>();
                    int pages = (screenshot.urls.Count + screenshot.pagesize) / screenshot.pagesize;
                    for (int i = 0; i < pages; i++)
                    {
                        var lists = screenshot.urls.Skip((i) * screenshot.pagesize).Take(screenshot.pagesize).ToList();
                        tasks.Add(PageToPdfStream(lists, screenshot.fileNameKey, screenshot.cnt, screenshot.root, screenshot.env, browser, viewPortOptions, pdfOptions));
                    }
                    var tsk = await Task.WhenAll(tasks);
                    foreach (var ts in tsk)
                    {
                        urls.AddRange(ts);
                    }
                }

                //browser.NewPageAsync();
                //foreach (var url in screenshot.urls) {
                //    var page = await browser.NewPageAsync();
                //    await page.SetViewportAsync(viewPortOptions);

                //    string file = $"E://pdfs//{Guid.NewGuid().ToString()}.pdf";
                //    var respons = await page.GoToAsync(System.Web.HttpUtility.UrlDecode(url), WaitUntilNavigation.Networkidle2);
                //    if (respons.Ok)
                //    {
                //        await page.PdfAsync(file, pdfOptions);
                //        // string base64 = await page.ScreenshotBase64Async(screenshotOptions);
                //    }
                //}

                //关闭浏览器
                await browser.CloseAsync();
                await browser.DisposeAsync();
                return Ok(new { urls = urls.Select(z => z.url) });
            }
            catch (Exception ex)
            {
                StreamWriter file = new StreamWriter("erorr_log.txt", append: true);
                await file.WriteLineAsync($"{this.GetType().Name} {JsonSerializer.Serialize(screenshot)}-----{ex.Message}----{ex.StackTrace}");
                file.Close();
                return BadRequest($"{ex.Message}\n{ex.StackTrace}");
            }
            finally
            {
                if (browser != null && !browser.IsClosed)
                {
                    await browser.CloseAsync();
                    await browser.DisposeAsync();
                }
            }
        }
        private async Task<List<(string name, string url)>> PageToPdfStream(List<string> urls, string fileNameKey, string cnt, string root, string env, Browser browser, ViewPortOptions viewPortOptions, PdfOptions pdfOptions)
        {
            string name = env.Equals("release") ? "Default" : "Test";
            List<Task<Page>> pages = new List<Task<Page>>();
            urls.ForEach(x => {
                pages.Add(browser.NewPageAsync());
            });
            var page_tasks = await Task.WhenAll(pages);
            List<Task<Response>> responses = new List<Task<Response>>();
            page_tasks.ToList().ForEach(x => {
                x.SetViewportAsync(viewPortOptions);

            });
            for (int i = 0; i < urls.Count; i++)
            {
                responses.Add(page_tasks[i].GoToAsync(urls[i], 30000, new WaitUntilNavigation[] { WaitUntilNavigation.Networkidle2 }));
            }
            var responses_tasks = await Task.WhenAll(responses);
            //List<Task<Stream>> streams = new List<Task<Stream>>();
            List<Task> tasks = new List<Task>();
            List<Task<(string name, string url)>> uploads = new List<Task<(string name, string url)>>();
            foreach (var page_task in page_tasks)
            {
                string url = page_task.Url;
                string[] paths = HttpUtility.UrlDecode(url).Split("/");
                var reg = $"(?<=\\b{fileNameKey}=)[^&]*";
                Regex regex = new Regex(reg);
                string decode = HttpUtility.UrlDecode(url);
                Match match = Regex.Match(decode, reg);
                string id = "";
                while (match.Success)
                {
                    id = id + $"{match.Value}";
                    match = match.NextMatch();
                }
                //需要解析参数。paths[paths.Length-1]
                Stream stream = await page_task.PdfStreamAsync(pdfOptions);
                if (string.IsNullOrWhiteSpace(cnt))
                {
                    uploads.Add(_azureStorage.GetBlobContainerClient("teammodelos", name).UploadFileByContainerBName(stream, root, $"{id}.pdf", true));
                }
                else
                {
                    uploads.Add(_azureStorage.GetBlobContainerClient(cnt, name).UploadFileByContainerBName(stream, root, $"{id}.pdf", true));
                }
            }
            (string name, string url)[] uploadUrls = await Task.WhenAll(uploads);
            page_tasks.ToList().ForEach(x => {
                tasks.Add(x.DisposeAsync().AsTask());
            });
            await Task.WhenAll(tasks);
            return uploadUrls.ToList();
        }
        private async Task PageToPdf(List<string> urls, Browser browser, ViewPortOptions viewPortOptions, PdfOptions pdfOptions)
        {
            List<Task<Page>> pages = new List<Task<Page>>();
            urls.ForEach(x => {
                pages.Add(browser.NewPageAsync());
            });
            var page_tasks = await Task.WhenAll(pages);
            List<Task<Response>> responses = new List<Task<Response>>();
            page_tasks.ToList().ForEach(x => {
                x.SetViewportAsync(viewPortOptions);

            });
            for (int i = 0; i <  urls.Count; i++)
            {
                responses.Add(page_tasks[i].GoToAsync(System.Web.HttpUtility.UrlDecode(urls[i]), WaitUntilNavigation.Networkidle2));
            }
            var responses_tasks = await Task.WhenAll(responses);
            List<Task> tasks = new List<Task>();
            page_tasks.ToList().ForEach(x => {
                string file = $"{Guid.NewGuid()}.pdf";
                tasks.Add(x.PdfAsync(file, pdfOptions));
            });
            await Task.WhenAll(tasks);
            tasks.Clear();
            page_tasks.ToList().ForEach(x => {
                tasks.Add(x.DisposeAsync().AsTask());
            });
            await Task.WhenAll(tasks);
        }
    }
}