using HTEXLib;
using HTEXLib.Builders;
using HTEXLib.DOCX.Models;
using HTEXLib.Helpers.ShapeHelpers;
using HTEXLib.Translator;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
 
using System;
using System.Collections.Generic;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.Json;
using System.Threading.Tasks;

namespace HTEXWeb.Controllers
{
    [ApiController]
    [Route("htex")]
    public class HtexController: ControllerBase
    {
        public PPTX2HTEXTranslator htexGenerator { get; set; }
        public DOXC2HTMLTranslator _DOXC2HTMLTranslator { get; set; }
        public HTML2ITEMTranslator _HTML2ITEMTranslator { get; set; }
      //  public HTML2IMGSTranslator _HTML2IMGSTranslator { get; set; }
        public HTML2ITEMV3Translator _HTML2ITEMV3Translator { get; set; }
        public HtexController(PPTX2HTEXTranslator htexGenerator, DOXC2HTMLTranslator DOXC2HTMLTranslator, // HTML2IMGSTranslator HTML2IMGSTranslator,
            HTML2ITEMV3Translator HTML2ITEMV3Translator) {
            _DOXC2HTMLTranslator = DOXC2HTMLTranslator;
           // _HTML2IMGSTranslator = HTML2IMGSTranslator;
            _HTML2ITEMV3Translator = HTML2ITEMV3Translator;
            this.htexGenerator = htexGenerator;
        }
        [HttpPost("generator")]
        public object Generator([FromForm] IFormFile file)
        {
            return JsonSerializer.Deserialize<JsonElement>(JsonHelper.ToJson(htexGenerator.Translate(file.OpenReadStream()),ignoreNullValue:false));
        }
        /// <summary>
        /// docUrl
        /// folder
        /// shaCode
        /// 
        /// UploadWord
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpPost("upload-word")]
        [RequestSizeLimit(102_400_000_00)] //最大10000m左右
        public IActionResult UploadWord([FromForm] IFormFile file)
        {
            var doc = _DOXC2HTMLTranslator.Translate(file.OpenReadStream());
            return Ok(new { htmlString =doc});
        }
        /// <summary>
        /// htmlString AnalyzeHtml
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpPost("parse-html")]
        public IActionResult AnalyzeHtml(JsonElement request)
        {
            if (!request.TryGetProperty("htmlString", out JsonElement htmlString)) { return BadRequest(); }
            (List<HTEXLib.DOCX.Models.ItemInfo> tests, List<string> error) = _HTML2ITEMV3Translator.Translate(htmlString.GetString());
            return Ok(new { tests, error });
        }
        /// <summary>
        /// htmlString AnalyzeHtml
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        //[HttpPost("html-screenshot")]
        //public IActionResult HtmlScreenshot(JsonElement request)
        //{
        //    request.TryGetProperty("htmlUrl",out JsonElement htmlUrl);
        //    var base64 = "data:image/png;base64,"+ _HTML2IMGSTranslator.PageScreenshotAll($"{htmlUrl}");
        //    return Ok(new { base64 });
        //}

        /// <summary>
        /// htmlString AnalyzeHtml
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpPost("parse-emf")]
        public IActionResult EmfToPng(JsonElement request)
        {
            if (!request.TryGetProperty("htmlString", out JsonElement htmlString)) { return BadRequest(); }

            MemoryStream memoryStream = new MemoryStream();
            Metafile inFile = new Metafile(memoryStream);
            //Metafile outFile = new Metafile(memoryStream, Graphics.FromHwnd(IntPtr.Zero).GetHdc(), EmfType.EmfOnly);
            inFile.Save(memoryStream, ImageFormat.Png);
            var ba = memoryStream.ToArray();
            var base64 = System.Convert.ToBase64String(ba);
           // var exercises = _HTML2ITEMV3Translator.Translate(htmlString.GetString());
            return Ok(base64);
        }
    }
}