using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace ChangeloggerMVC
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
            AppConfig = configuration.GetSection("Config");
        }

        public IConfiguration Configuration { get; }

        private IConfigurationSection AppConfig { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            string oLogPath = AppConfig["LogPath"];
            bool.TryParse(AppConfig["LogDebug"], out bool oLogDebug);

            services.Configure<Config>(Configuration.GetSection("Config"));
            services.AddSingleton<ILogging>(sp => new Logging(oLogPath, oLogDebug));
            services.AddSingleton((Func<IServiceProvider, IDatabase>)(sp => {
                var logging = sp.GetService<ILogging>();
                var config = sp.GetService<IConfiguration>();

                return new Database(logging, config);
            }));

            services.AddControllersWithViews();
        }

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

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Home}/{action=Index}/{id?}");
            });
        }
    }
}