using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.OpenApi.Models;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace @Model.name_space{
 
    public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }
    public readonly string MyAllowSpecificOrigins = "_myAllowSpecificOrigins";
    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {

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

        });

        //配置JSON.NET
        services.AddControllers().AddNewtonsoftJson(opt =>
        {
                //忽略循环引用
                opt.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;

                //不改变字段大小
                opt.SerializerSettings.ContractResolver = new DefaultContractResolver();
        });

        //配置可以跨域
        services.AddCors(options =>
        {
            options.AddPolicy(MyAllowSpecificOrigins,
              builder => builder.AllowAnyOrigin()
                        .AllowAnyHeader()
                       .WithMethods("GET", "POST", "HEAD", "PUT", "DELETE", "OPTIONS")
                         );
        });
    }

    // 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.InjectJavascript("");
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "API");
                c.DocExpansion(Swashbuckle.AspNetCore.SwaggerUI.DocExpansion.None);
                c.DefaultModelsExpandDepth(-1);
            });
        }
        app.UseCors(MyAllowSpecificOrigins);//添加这个

        app.UseRouting();

        app.UseAuthorization();

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