using Microsoft.AspNetCore.Components;
using Microsoft.JSInterop;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Threading.Tasks;

namespace Blog3000.Client.Pages
{
    public partial class PublicDl
    {

        /* Download within the url-space the blog
         * Authors can Download from /PublicDl/myfile
         * Server will be asked for actual url and the
         * and the download will be initiated from this url.
         * Server may anonymously count downloads, or create
         * one-time-urls for protected DLs.
         * Download-counting could be readlized with <a href.... ping=myserver" as well
         * 
         * The download-server should have another domain than the blog currently,
         * since otherwise the blogs router may take over and display a not found.
         * 
         * Otherwise we would need a own javascript based downloader, which may
         * be excessive work currently
         * 
         */ 

        [Parameter]
        public string Filename
        {
            get; set;
        }

        public string FinalUrl;

        [Inject]
        private HttpClient HttpClient { get; set; }

        protected override async Task OnInitializedAsync()
        {
            FinalUrl = await HttpClient.GetStringAsync($"PublicDl/{Filename}/getredirurl");
            this.StateHasChanged();

            await jsRuntime.InvokeVoidAsync("downloadURI", $"{FinalUrl}", ""); ;
        }
    }
}