using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using iPackage.Core.Web.Extensions;
using iPackage.Core.Web.Models.Entity;
using iPackage.Core.Web.Models.Settings;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.IdentityModel.Tokens;

namespace iPackage.Core.Web.WebFramework.Configurations
{

    public static class ServiceConfigExtensions
    {
        public static void AddJwtCustomAuthentication(this IServiceCollection serviceCollection, JwtSettings jwtSettings)
        {
            serviceCollection.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
                .AddJwtBearer(options =>
                {
                    var secretKey = Encoding.UTF8.GetBytes(jwtSettings.SecretKey);
                    var validateParammetrs = new TokenValidationParameters
                    {
                        ClockSkew = TimeSpan.Zero,
                        RequireSignedTokens = true,
                        ValidateIssuerSigningKey = true,
                        IssuerSigningKey = new SymmetricSecurityKey(secretKey),
                        RequireExpirationTime = true,
                        ValidateLifetime = true,
                        ValidateAudience = true,
                        ValidAudience = jwtSettings.Audience,
                        ValidateIssuer = true,
                        ValidIssuer = jwtSettings.Issuer

                    };
                    options.RequireHttpsMetadata = true;
                    options.SaveToken = true;
                    options.TokenValidationParameters = validateParammetrs;

                });
        }

        public static void AddCustomIdentity<TApplicationContext>(this IServiceCollection serviceCollection) where TApplicationContext : DbContext
        {
            serviceCollection.AddIdentity<Admin, Role>(options =>
            {
                options.Password.RequireLowercase = false;
                options.Password.RequireUppercase = false;
                options.Password.RequireDigit = false;
                options.Password.RequireNonAlphanumeric = false;
                options.User.RequireUniqueEmail = false;
            }).AddEntityFrameworkStores<TApplicationContext>().AddDefaultTokenProviders();
        }

        public static void AddCustomApiVersioning(this IServiceCollection serviceCollection)
        {
            serviceCollection.AddApiVersioning(options =>
            {
                options.AssumeDefaultVersionWhenUnspecified = true;
                options.DefaultApiVersion = new ApiVersion(1, 0);
                options.ReportApiVersions = true;
            });
        }

        /// <summary>
        /// In this method we set db context , read github readme for set db context
        /// </summary>
        /// <typeparam name="ContextT">Type of your DataBase Context</typeparam>
        /// <typeparam name="StartUpAssembly">Type of your asp project startup for check assembly for model builder</typeparam>
        /// <param name="serviceCollection"></param>
        /// <param name="optionAction"></param>
        public static void AddiPackageDbContext<ContextT,StartUpAssembly>(
            this IServiceCollection serviceCollection,
            Action<DbContextOptionsBuilder> optionAction)
            where ContextT : DbContext
        {
            Action<DbContextOptionsBuilder> action = options =>
            {
                options.UseProjectAssembly(typeof(StartUpAssembly).Assembly);
            };
            serviceCollection.AddDbContext<ContextT>(action+optionAction);

        }
    }
}