using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Routing;
using Microsoft.AspNetCore.Authorization;
using Microsoft.Extensions.Logging;
using AyaNova.Models;
using AyaNova.Api.ControllerHelpers;
using AyaNova.Biz;
using AyaNova.Util;
using PuppeteerSharp;

namespace AyaNova.Api.Controllers
{
    [ApiController]
    [ApiVersion("8.0")]
    [Route("api/v{version:apiVersion}/report")]
    [Produces("application/json")]
    [Authorize]
    public class ReportController : ControllerBase
    {
        private readonly AyContext ct;
        private readonly ILogger<ReportController> log;
        private readonly ApiServerState serverState;

        /// <summary>
        /// ctor
        /// </summary>
        /// <param name="dbcontext"></param>
        /// <param name="logger"></param>
        /// <param name="apiServerState"></param>  
        public ReportController(AyContext dbcontext, ILogger<ReportController> logger, ApiServerState apiServerState)
        {
            ct = dbcontext;
            log = logger;
            serverState = apiServerState;
        }



        [HttpGet("render/{test}")]
        [AllowAnonymous]
        public async Task<IActionResult> GetTestReport([FromRoute] string test)
        {
            if (!serverState.IsOpen)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));

            string outputFile = FileUtil.NewRandomTempFilesFolderFileName;

            switch (test)
            {
                case "chrome-reddit-to-pdf":
                    //first test, just render a web page to pdf and return it
                    //return PhysicalFile(filePath, mimetype, dbObject.DisplayFileName);
                    outputFile += ".pdf";
                    //http://www.puppeteersharp.com/api/index.html
                    //https://github.com/hardkoded/puppeteer-sharp
                    await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
                    var browser = await Puppeteer.LaunchAsync(new LaunchOptions
                    {
                        Headless = true
                    });
                    var page = await browser.NewPageAsync();
                    await page.GoToAsync("https://github.com/hardkoded/puppeteer-sharp");

                    await page.PdfAsync(outputFile);
                    return PhysicalFile(outputFile, "application/pdf");
            }
            return NotFound(test);
        }


        [HttpGet("render/pdf/{url}")]
        [AllowAnonymous]
        public async Task<IActionResult> GetUrlPdfReport([FromRoute] string url)
        {
            if (!serverState.IsOpen)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
            string outputFile = FileUtil.NewRandomTempFilesFolderFileName;
            //first test, just render a web page to pdf and return it
            //return PhysicalFile(filePath, mimetype, dbObject.DisplayFileName);
            outputFile += ".pdf";
            //http://www.puppeteersharp.com/api/index.html
            //https://github.com/hardkoded/puppeteer-sharp
            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
            var browser = await Puppeteer.LaunchAsync(new LaunchOptions
            {
                Headless = true
            });
            var page = await browser.NewPageAsync();
            await page.GoToAsync(url);
            await page.PdfAsync(outputFile);
            return PhysicalFile(outputFile, "application/pdf");
        }

        //------------
        /*
        NOTES/TODO during testing

        Need job to automatically erase any temp files older than 5 minutes (or whatever)

        */

    }//eoc
}//eons