using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Web;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;
using Microsoft.IdentityModel.Tokens.Experimental;
using Microsoft.OpenApi.Models;
using OnProfNext.Server.Data;
using System.Text;

var builder = WebApplication.CreateBuilder(args);

//Datenbankzugriff
builder.Services.AddDbContext<AppDbContext>(options =>
    options.UseSqlServer(
        builder.Configuration.GetConnectionString("DefaultConnection")
    )
);


//JWT Config

var jwtSettings = builder.Configuration.GetSection("Jwt");
var key = Encoding.UTF8.GetBytes(jwtSettings["Key"]!);


builder.Services.AddAuthentication(options =>
{
    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
})
.AddJwtBearer(options =>
{
    options.RequireHttpsMetadata = false;
    options.SaveToken = true;
    options.TokenValidationParameters = new TokenValidationParameters
    {
        ValidateIssuer = true,
        ValidateAudience = true,
        ValidateLifetime = true,
        ValidateIssuerSigningKey = true,
        ValidIssuer = jwtSettings["Issuer"],
        ValidAudience = jwtSettings["Audience"],
        IssuerSigningKey = new SymmetricSecurityKey(key),
        ClockSkew = TimeSpan.FromSeconds(30)
    };
});

builder.Services.AddAuthorization(options =>
{
    options.FallbackPolicy = options.DefaultPolicy;
});



//Controller & Swagger
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new() { Title = "OnProfNext API", Version = "v1" });
        var securityScheme = new OpenApiSecurityScheme
        {
            Name = "Authorization",
            Description = "JWT Token: Bearer {token}",
            In = ParameterLocation.Header,
            Type = SecuritySchemeType.Http,
            Scheme = "bearer",
            BearerFormat = "JWT",
            Reference = new OpenApiReference { Type = ReferenceType.SecurityScheme, Id = "Bearer" }
        };

        c.AddSecurityDefinition("Bearer", securityScheme);
        c.AddSecurityRequirement(new OpenApiSecurityRequirement { { securityScheme, Array.Empty<string>() } });
    }    
    
    
    
);

//Cors

builder.Services.AddCors(options =>
{
    options.AddPolicy("AllowAll", policy =>
    {
        policy.AllowAnyOrigin()
              .AllowAnyHeader()
              .AllowAnyMethod();
    });
});


var app = builder.Build();

if(app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseCors("AllowAll");


//Auth
app.UseAuthentication();
app.UseAuthorization();

app.MapControllers();

app.Run();