/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * SPDX-License-Identifier: MIT-0
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the "Software"), to deal in the Software
 * without restriction, including without limitation the rights to use, copy, modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using InventoryService.Data;
using InventoryService.Interface;
using InventoryService.Repository;
using InventoryService.Service;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

namespace InventoryService
{
    public class Startup
    {
        // Connection string to be used while connecting to the database.
        private const string ConnectionStringKey = "RDSConnection";

        private const string OrchestrationEnvironmentVariableName = "ORCHESTRARTION_ENVIRONMENT";

        private const string InMemoryDbName = "UnishopDev";

        public Startup(IConfiguration configuration)
        {
            this.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)
        {
            services.AddCors();

            services.AddControllers();

            services.AddTransient<IUnicornRepository, UnicornRepository>();

            services.AddTransient<IUnicornService, UnicornService>();

            services.AddTransient<IRekognitionService, RekognitionService>();

            services.AddTransient<IS3UnicornRepository, S3UnicornRepository>();

            services.AddTransient<ISNSService, SNSService>();

            // Using in-memory database for EKS lab demo.
            if (Environment.GetEnvironmentVariable(OrchestrationEnvironmentVariableName) == "EKS")
            {
                services.AddDbContext<UnicornShop>(options => options.UseInMemoryDatabase(databaseName: InMemoryDbName));
            }
            else
            {
                services.AddDbContext<UnicornShop>(options => options.UseSqlServer(this.Configuration.GetConnectionString(ConnectionStringKey)));
            }
        }

        // 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.UseCors(builder =>
            {
                builder.AllowAnyOrigin()
                .AllowAnyMethod()
                .AllowAnyHeader();
            });

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }
}