using Belgrade.SqlClient;
using Belgrade.SqlClient.SqlDb;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.FileProviders;
using Microsoft.Extensions.Logging;
using System.Data.SqlClient;
using System.IO;

namespace AngularHeroApp
{
    public class Startup
    {
        public Startup(IHostingEnvironment env)
        {
            var builder = new ConfigurationBuilder()
                .SetBasePath(env.ContentRootPath)
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
                .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)
                .AddEnvironmentVariables();
            Configuration = builder.Build();
        }

        public IConfigurationRoot Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            string ConnString = Configuration["ConnectionStrings:HeroDb"];
            
            if (ConnString == null)
                throw new System.Exception("Cannot read config: " + ConnString);
            services.AddTransient<IQueryPipe>( _=> new QueryPipe(new SqlConnection(ConnString)));
            services.AddTransient<ICommand>( _=> new Command(new SqlConnection(ConnString)));

            // Add framework services.
            services.AddMvc();
            
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
        {
            loggerFactory.AddConsole(Configuration.GetSection("Logging"));
            loggerFactory.AddDebug();

            app.UseMvc();
            app.UseStaticFiles();

            // Expose node_modules as virtual folder
            // becasue AngularJS uses some libraries from node_modules folder.
            app.UseStaticFiles(new StaticFileOptions()
            {
                FileProvider =
                    new PhysicalFileProvider(
                        Path.Combine(Directory.GetCurrentDirectory(), @"node_modules")),
                        RequestPath = new PathString("/node_modules")
            });
        }
    }
}