using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Dough.Models;
using Dough.Utilities;
using Dough.Models.Database;
using Microsoft.AspNetCore.CookiePolicy;
using Microsoft.AspNetCore.Http;

namespace Dough
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }
        private const string MainCorsPolicy = "MainCorsPolicy";

        private string GetConnectionStringFromEnvironment()
        {
            var host = Configuration.GetValue<string>("DB_HOST");
            var port = Configuration.GetValue("DB_PORT", "3306");
            var user = Configuration.GetValue<string>("DB_USER");
            var password = Configuration.GetValue<string>("DB_PASSWORD");
            var name = Configuration.GetValue<string>("DB_NAME");
            return $"Server={host},{port};Database={name};User={user};Password={password}";
        }

        public void ConfigureServices(IServiceCollection services)
        {

            services.AddCors(options =>
            {
                options.AddPolicy(MainCorsPolicy, builder =>
                {
                    builder
                        .AllowAnyHeader()
                        .AllowAnyMethod()
                        .AllowCredentials()
                        .WithOrigins("http://localhost:8080");
                });
            });

            services.AddDbContext<MainDbContext>(options => {
                options.UseMySql(GetConnectionStringFromEnvironment(), settings =>
                {
                    settings.EnableRetryOnFailure(3);
                });
            });

            services.AddControllers();

            services.AddAuthentication(Constants.AuthenticationScheme)
                .AddCookie(Constants.AuthenticationScheme, options =>
                {
                    options.Cookie.Name = "dough_session";
                    options.Cookie.HttpOnly = true;
                    options.Cookie.SameSite = SameSiteMode.Strict;
                    options.Cookie.SecurePolicy = CookieSecurePolicy.SameAsRequest;
                    options.LoginPath = "/api/account/login";
                    options.SlidingExpiration = true;
                    options.LogoutPath = "/api/account/logout";
                });
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
                app.UseDeveloperExceptionPage();

            app.UseCors(MainCorsPolicy);
            app.UseRouting();
            app.UseStatusCodePages();
            app.UseAuthentication();
            app.UseAuthorization();
            app.UseEndpoints(endpoints => { endpoints.MapControllers(); });
        }
    }
}