using System.Collections.Generic;
using System.Linq;
using xCommons.Extensions;
using xIdentityModels.Configurations;
using xIdentityModels.Constants;
using xIdentityModels.Dtos;
using xIdentityModels.Models;

namespace xIdentityModels.Extensions
{
    public static class xIdentityModelsExtensions
    {
        /// <summary>
        /// Converts a User Entity to Profile Dto ...
        /// </summary>
        /// <param name="source"></param>
        /// <param name="isAdmin"></param>
        /// <param name="isSameUser"></param>
        /// <param name="roles"></param>
        /// <param name="friendship"></param>
        /// <param name="profileConfig"></param>
        /// <returns></returns>
        public static XUserProfileDto ToXProfileDto(
            this XUser source,
            bool isAdmin = false,
            bool isSameUser = false,
            IEnumerable<string> roles = null,
            XFriendshipInfoDto friendship = null,
            XIdentityProfile profileConfig = null
        )
        {
            //
            XUserProfileDto result = null;

            //
            if (roles == null)
            {
                roles = new List<string>();
            }

            //
            // Prepare Dto ...
            if (!source.IsNullOrDefault())
            {
                //
                result = new XUserProfileDto
                {
                    Bio = source.Bio,
                    UserId = source.Id,
                    Email = source.Email,
                    Roles = roles.ToList(),
                    Avatar = source.Avatar,
                    IsEnable = source.IsEnable,
                    IsBanned = source.IsBanned,
                    UserName = source.UserName,
                    LastName = source.LastName,
                    FriendshipInfo = friendship,
                    FirstName = source.FirstName,
                    LastLogin = source.LastLogin,
                    CoverImage = source.CoverImage,
                    PhoneNumber = source.PhoneNumber,
                    DateOfBirth = source.DateOfBirth,
                    CreationDate = source.CreationDate,
                    OpenToSearch = source.OpenToSearch,
                    Gender = (XGender)(int)source.Gender,
                    EmailConfirmed = source.EmailConfirmed,
                    PhoneNumberConfirmed = source.PhoneNumberConfirmed,
                    Avatars = source.Avatars.Select(pfi =>
                    {
                        //
                        return new XProfileImageDto
                        {
                            Id = pfi.Id,
                            Name = pfi.Name,
                            Path = pfi.Path,
                            Thumb = pfi.Thumb,
                            ThumbPath = pfi.ThumbPath,
                            CreationDate = pfi.CreationDate
                        };
                    }).ToList(),
                };
            }

            //
            // Apply Profiling Configuration ...

            //
            bool isPassed = false;

            //
            // Handle Friendship ...
            isPassed = !isSameUser;
            if (!isPassed)
            {
                result.FriendshipInfo = null;
            }

            //
            // Handle Email Info ...
            isPassed = isAdmin || isSameUser || (!profileConfig.IsNullOrDefault() && profileConfig.ContainsEmail);
            if (!isPassed)
            {
                result.Email = string.Empty;
                result.EmailConfirmed = false;
            }

            //
            // Handle PhoneNumber Info ...
            isPassed = isAdmin || isSameUser || (!profileConfig.IsNullOrDefault() && profileConfig.ContainsPhoneNumber);
            if (!isPassed)
            {
                source.PhoneNumber = string.Empty;
                source.PhoneNumberConfirmed = false;
            }

            //
            // Handle Last Login ...
            isPassed = isAdmin || isSameUser || (!profileConfig.IsNullOrDefault() && profileConfig.ContainsLastLogin);
            if (!isPassed)
            {
                result.LastLogin = null;
            }

            //
            // Handle Date Of Birth ...
            isPassed = isAdmin || isSameUser || (!profileConfig.IsNullOrDefault() && profileConfig.ContainsDateOfBirth);
            if (!isPassed)
            {
                result.DateOfBirth = null;
            }

            //
            // Handle Creation Date ...
            isPassed = isAdmin || isSameUser || (!profileConfig.IsNullOrDefault() && profileConfig.ContainsCreationDate);
            if (!isPassed)
            {
                result.CreationDate = null;
            }

            //
            // Handle Roles ...
            isPassed = isAdmin || isSameUser || (!profileConfig.IsNullOrDefault() && profileConfig.ContainsRoles);
            if (!isPassed)
            {
                result.Roles = new List<string>();
            }

            //
            return result;
        }

        /// <summary>
        /// Check Specified User Has Access to Provided Roles ...
        /// </summary>
        /// <param name="source"></param>
        /// <param name="roles"></param>
        /// <returns></returns>
        public static bool HasAccess(
            this XUserClaimsInfoDto source,
            string[] roles
        )
        {
            //
            var result = 
                !source.IsNullOrDefault() &&
                source.Roles
                    .Any(r => roles
                        .Any(ar => r.ToNormalString()
                            .Contains(ar.ToNormalString())));

            //
            return result;
        }

        /// <summary>
        /// Check Specified User Contains Specified UserSelectByParam or not ...
        /// </summary>
        /// <param name="source"></param>
        /// <param name="userSelectByParam"></param>
        /// <returns></returns>
        public static bool ContainsUserSelectByParam(
            this XUser source,
            string userSelectByParam
        )
        {
            //
            var result =
                !source.IsNull() &&
                !userSelectByParam.IsNullOrEmpty() &&
                (source.Id == userSelectByParam ||
                source.Email.ToNormalString() == userSelectByParam.ToNormalString() ||
                source.UserName.ToNormalString() == userSelectByParam.ToNormalString() ||
                source.PhoneNumber.ToNormalString() == userSelectByParam.ToNormalString());

            //
            return result;
        }
    }
}