using System;
using System.Collections.Specialized;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Infrastructure;
using SelectPdf;

namespace SelectPdf.Samples
{
    public class Startup
    {
        public static string ServerPath;
        public static string WebRootPath;
        public static NameValueCollection collectionDummy;

        // Public marketing site the chrome (nav menu, logo, footer) links at.
        // Set once in Configure: the staging mirror is selectpdf.net; dev and
        // production use selectpdf.com. Stored without a trailing slash.
        public static string MarketingBaseUrl = "https://selectpdf.com";

        // Host-only form (no scheme, no trailing slash) for the footer label.
        public static string MarketingHost =>
            MarketingBaseUrl.Replace("https://", string.Empty)
                            .Replace("http://", string.Empty)
                            .TrimEnd('/');

        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            // Echo the client's download token back as a cookie on file responses
            // so the page JS can restore the "Working …" button when the download
            // is delivered (see DownloadTokenPageFilter).
            services.AddMvc(options =>
                options.Filters.Add<DownloadTokenPageFilter>());
            services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();
            services.TryAddSingleton<IActionContextAccessor, ActionContextAccessor>();
            services.AddScoped<IViewRenderService, ViewRenderService>();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseBrowserLink();
            }
            else
            {
                app.UseExceptionHandler("/Error");
            }

            ServerPath = env.ContentRootPath;
            WebRootPath = env.WebRootPath;

            // Marketing site the chrome links at — env-specific: staging mirror is
            // selectpdf.net, dev + production both use selectpdf.com. A
            // "MarketingBaseUrl" config value overrides this if ever needed.
            MarketingBaseUrl =
                (Configuration["MarketingBaseUrl"]
                    ?? (env.IsStaging() ? "https://selectpdf.net" : "https://selectpdf.com"))
                .TrimEnd('/');


            // Apply the DenyLocalFileAccess flag from appsettings.json globally.
            // When true, SelectPdf rejects any attempt to convert local files / file:// URLs.
            GlobalProperties.ForceDenyLocalFileAccess =
                Configuration.GetValue<bool>("DenyLocalFileAccess", false);
            app.UseStaticFiles();

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller}/{action=Index}/{id?}");
            });
        }
    }
}
