using System;
using System.Text;
using System.Linq;

using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;
using Microsoft.OpenApi.Models;
using Newtonsoft.Json;
using NLog;
using NLog.Web;
using NLog.Web.AspNetCore;

using Icarus.Database.Contexts;

namespace Icarus;
public class Startup
{
    #region Constructors
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }
    #endregion

    #region Properties
    public IConfiguration Configuration { get; }
    #endregion


    #region Methods
    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllers();

        var auth_id = Configuration["Auth0:Domain"];
        var domain = $"https://{auth_id}/";
        var audience = Configuration["Auth0:ApiIdentifier"];

        var connString = Configuration.GetConnectionString("DefaultConnection");

        services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme).AddJwtBearer(options =>
        {
            options.RequireHttpsMetadata = false;
            options.SaveToken = true;
            options.TokenValidationParameters = new TokenValidationParameters()
            {
                ValidateIssuer = true,
                ValidateAudience = true,
                ValidAudience = Configuration["JWT:Audience"],
                ValidIssuer = Configuration["JWT:Issuer"],
                IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["JWT:Secret"]))
            };
        });

        services.AddDbContext<SongContext>(options => options.UseMySQL(connString));
        services.AddDbContext<AlbumContext>(options => options.UseMySQL(connString));
        services.AddDbContext<ArtistContext>(options => options.UseMySQL(connString));
        services.AddDbContext<UserContext>(options => options.UseMySQL(connString));
        services.AddDbContext<GenreContext>(options => options.UseMySQL(connString));
        services.AddDbContext<CoverArtContext>(options => options.UseMySQL(connString));

        services.AddControllers()
            .AddNewtonsoftJson();
        
        services.AddEndpointsApiExplorer();
        services.AddSwaggerGen(c =>
        {
            c.ResolveConflictingActions(apiDescriptions => apiDescriptions.First());

            c.SwaggerDoc("v1", new OpenApiInfo { Title = "Icarus", Version = "v1" });
            c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme()
            {
                Name = "Authorization",
                Scheme = "Bearer",
                BearerFormat = "JWT",
                Type = SecuritySchemeType.ApiKey,
                In = ParameterLocation.Header,
                Description = "Bearer *Auth Token*",
            });
            c.AddSecurityRequirement(new OpenApiSecurityRequirement
            {
                {
                    new OpenApiSecurityScheme
                    {
                        Reference = new OpenApiReference
                        {
                            Type = ReferenceType.SecurityScheme,
                            Id = "Bearer"
                        }
                    },
                    new string[] {}
                }
            });
        });
    }

    // Called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        // NOTE: Dev-related configuration can be done when env.IsDevelopment() evaluated to true
        if (env.IsDevelopment())
        {
            app.UseSwagger();
            app.UseSwaggerUI();
        }

        app.UseRouting();
        app.UseAuthentication();
        app.UseAuthorization();
        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });
    }
    #endregion
}