using System.IO;
using System.Text.Json.Serialization;
using Flexitime.DataAccess;
using Flexitime.Interfaces;
using FlexitimeAPI.Functions;
using FlexitimeAPI.Helpers;
using FlexitimeAPI.Interfaces;
using FlexitimeAPI.Models;
using FlexitimeAPI.Services;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.OpenApi.Models;

namespace FlexitimeAPI
{
    public class Startup
    {
        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)
        {
            var settings = InitialiseAppSettings();

            services.AddSingleton(typeof(IApplicationSettings), settings);
            services.AddSingleton<ILoginService, LoginService>();
            services.AddSingleton<IConnectionStringProvider, ConnectionStringProvider>();
            services.AddSingleton<IDataAccess, Database>();
            services.AddSingleton<IUserService, UserService>();

            services.AddCors(options =>
            {
                options.AddDefaultPolicy(
                    builder =>
                    {
                        builder
                            .WithOrigins("http://localhost:3000")
                            .AllowAnyMethod()
                            .AllowAnyHeader();
                    });
            });

            services.AddControllers().AddJsonOptions(opts =>
            {
                opts.JsonSerializerOptions.PropertyNameCaseInsensitive = true;
                opts.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());
            });

            services.AddSwaggerGen(c =>
            {
                c.SwaggerDoc("v1", new OpenApiInfo {Title = "FlexitimeAPI", Version = "v1"});
            });
        }

        private IApplicationSettings InitialiseAppSettings()
        {
            var appSettings= new ConfigurationBuilder()
                .SetBasePath(Directory.GetCurrentDirectory())
                .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
                .Build()
                .GetSection("Settings")
                .Get<AppSettings>();

            appSettings.Verify<AppSettings>();

            return appSettings;
        }

        // 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();
                app.UseSwagger();
                app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "FlexitimeAPI v1"));
            }

            app.UseCors();
            //app.UseHttpsRedirection();
            app.UseRouting();

            app.UseMiddleware<JwtMiddleware>();
            app.UseAuthorization();
            
            app.UseEndpoints(endpoints => { endpoints.MapControllers(); });
        }
    }
}