namespace NetinaShop.Core.EntityServices;


public class UserService : IUserService
{
    private readonly ICurrentUserService _currentUserService;
    private readonly UserManager<ApplicationUser> _userManager;
    private readonly RoleManager<ApplicationRole> _roleManager;
    private readonly IExternalFilesService _externalFilesService;
    private readonly IRepositoryWrapper _repositoryWrapper;

    public UserService(ICurrentUserService currentUserService,
        UserManager<ApplicationUser> userManager,
        RoleManager<ApplicationRole> roleManager,
        IExternalFilesService externalFilesService,
        IRepositoryWrapper repositoryWrapper)
    {
        _currentUserService = currentUserService;
        _userManager = userManager;
        _roleManager = roleManager;
        _externalFilesService = externalFilesService;
        _repositoryWrapper = repositoryWrapper;
    }


    public async Task<ProfileResponseDto> GetUserProfileAsync(CancellationToken cancellationToken)
    {
        if (!Guid.TryParse(_currentUserService.UserId, out var userId))
            throw new AppException("Wrong Token", ApiResultStatusCode.UnAuthorized);
        var user = await _userManager.FindByIdAsync(userId.ToString());
        if (user == null)
            throw new AppException("User NotFound", ApiResultStatusCode.NotFound);

        var response = new ProfileResponseDto();

        //var userSDto = user.AdaptToSDto();

        response.User = new ApplicationUserSDto();
        var userRoles = await _userManager.GetRolesAsync(user);
        foreach (var role in userRoles)
        {

            var dbRole = await _roleManager.FindByNameAsync(role);
            if (dbRole != null)
            {
                var roleClaims = await _roleManager.GetClaimsAsync(dbRole);
                response.Permissions.AddRange(roleClaims.Where(c => c.Type == "Permission").Select(c => c.Value).ToList());
            }
        }

        response.Roles = userRoles.ToList();
        return response;
    }

    public async Task<List<ApplicationUserSDto>> GetUsersAsync(int page = 0, string? phoneNumber = null, CancellationToken cancellationToken = default)
    {
        List<ApplicationUserSDto> users;

        if (phoneNumber == null || phoneNumber.IsNullOrEmpty())
            users = await _userManager.Users
                .Where(u => u.UserName != "09214802813")
                .Skip(page * 15).Take(15)
                .Select(ApplicationUserMapper.ProjectToSDto)
                .ToListAsync(cancellationToken);
        else
            users = await _userManager.Users
                .Where(a => a.PhoneNumber == phoneNumber && a.UserName != "09214802813")
                .Skip(page * 15).Take(15)
                .Select(ApplicationUserMapper.ProjectToSDto)
                .ToListAsync(cancellationToken);
        foreach (var user in users)
        {
            var roles = await _userManager.GetRolesAsync(user.AdaptToApplicationUser());
            foreach (var roleName in roles)
            {
                var role = await _roleManager.FindByNameAsync(roleName);
                if (role != null)
                    user.RoleName += role.PersianName + " ";
            }
        }

        var returnUser = users.Where(r => r.FullName.Trim() != "همه کاره سیستم").ToList();
        return returnUser;
    }

    public async Task<ApplicationUserSDto> GetUserAsync(Guid userId, CancellationToken cancellationToken = default)
    {
        var user = await _userManager.FindByIdAsync(userId.ToString());
        if (user == null)
            throw new AppException("User not found", ApiResultStatusCode.NotFound);
        var dto = user.AdaptToSDto();
        var roles = await _userManager.GetRolesAsync(user);
        foreach (var roleName in roles)
        {
            var role = await _roleManager.FindByNameAsync(roleName);
            if (role != null)
                dto.RoleIds.Add(role.Id);
        }
        return dto;
    }

    public async Task<ApplicationUser> CreateUserAsync(string phoneNumber, CancellationToken cancellationToken = default)
    {
        var user = new ApplicationUser
        {
            UserName = phoneNumber,
            PhoneNumber = phoneNumber,
            SignUpStatus = SignUpStatus.StartSignOn
        };
        var result = await _userManager.CreateAsync(user);
        if (!result.Succeeded)
            throw new AppException(string.Join('|', result.Errors));
        return user;
    }

    public async Task<ApplicationUser> CreateUserAsync(UserActionRequestDto request, CancellationToken cancellationToken)
    {

        var user = await _userManager.FindByNameAsync(request.PhoneNumber);
        if (user == null)
        {
            user = new ApplicationUser
            {
                UserName = request.PhoneNumber,
                PhoneNumber = request.PhoneNumber,
                FirstName = request.FirstName,
                LastName = request.LastName,
                NationalId = request.NationalId,
                BirthDate = DateTimeExtensions.UnixTimeStampToDateTime(request.BirthDateTimeStamp),
                Gender = request.Gender,
                SignUpStatus = SignUpStatus.SignUpCompleted,
                PhoneNumberConfirmed = true
            };

            if (!request.Password.IsNullOrEmpty())
            {
                var result = await _userManager.CreateAsync(user, request.Password);
                if (!result.Succeeded)
                    throw new AppException(string.Join('|', result.Errors.Select(e => e.Description)));
            }
            else
            {
                var result = await _userManager.CreateAsync(user);
                if (!result.Succeeded)
                    throw new AppException(string.Join('|', result.Errors.Select(e => e.Description)));
            }

            if (request.RoleIds.Count > 0)
            {
                foreach (var roleId in request.RoleIds)
                {
                    var role = await _roleManager.FindByIdAsync(roleId.ToString());
                    if (role is { Name: not null })
                        await _userManager.AddToRoleAsync(user, role.Name);
                }
            }

            var customer = await _repositoryWrapper.SetRepository<Customer>()
                .TableNoTracking
                .FirstOrDefaultAsync(c => c.UserId == user.Id, cancellationToken);
            if (customer != null)
            {
                _repositoryWrapper.SetRepository<Customer>()
                    .Add(new Customer
                    {
                        UserId = user.Id
                    });
                await _repositoryWrapper.SaveChangesAsync(default);
            }

            _repositoryWrapper.SetRepository<Manager>()
                .Add(new Manager
                {
                    UserId = user.Id
                });
            await _repositoryWrapper.SaveChangesAsync(default);
        }
        return user;
    }

    public async Task<bool> EditUserAsync(UserActionRequestDto request, CancellationToken cancellationToken)
    {
        if (request.UserId == Guid.Empty)
            throw new AppException("Wrong authorize token , UserId needed");

        var user = await _userManager.FindByIdAsync(request.UserId.ToString());
        if (user == null)
            throw new AppException("User not found", ApiResultStatusCode.NotFound);
        user.LastName = request.LastName;
        user.FirstName = request.FirstName;
        user.UserName = request.PhoneNumber;
        user.PhoneNumber = request.PhoneNumber;
        user.FirstName = request.FirstName;
        user.LastName = request.LastName;
        user.NationalId = request.NationalId;
        user.BirthDate = DateTimeExtensions.UnixTimeStampToDateTime(request.BirthDateTimeStamp);
        user.Gender = request.Gender;

        var result = await _userManager.UpdateAsync(user);
        if (!result.Succeeded)
            throw new AppException(string.Join('|', result.Errors.Select(e => e.Description)));
        if (!request.Password.IsNullOrEmpty())
        {
            if (await _userManager.HasPasswordAsync(user))
                await _userManager.RemovePasswordAsync(user);

            var addPassResult = await _userManager.AddPasswordAsync(user, request.Password);
            if (!addPassResult.Succeeded)
                throw new AppException(string.Join('|', addPassResult.Errors.Select(e => e.Description)));
        }

        if (request.RoleIds.Count > 0)
        {
            var userRoles = await _userManager.GetRolesAsync(user);
            await _userManager.RemoveFromRolesAsync(user, userRoles);
            foreach (var roleId in request.RoleIds)
            {
                var role = await _roleManager.FindByIdAsync(roleId.ToString());
                if (role is { Name: not null })
                {
                    await _userManager.AddToRoleAsync(user, role.Name);
                }
            }
        }

        return true;
    }

    public async Task<bool> EditUserProfileAsync(UserActionRequestDto request, CancellationToken cancellationToken)
    {
        if (_currentUserService.UserId == null)
            throw new AppException("Wrong authorize token , UserId needed");

        var user = await _userManager.FindByIdAsync(_currentUserService.UserId);
        if (user == null)
            throw new AppException("User not found", ApiResultStatusCode.NotFound);
        user.LastName = request.LastName;
        user.FirstName = request.FirstName;
        user.UserName = request.PhoneNumber;
        user.PhoneNumber = request.PhoneNumber;
        user.FirstName = request.FirstName;
        user.LastName = request.LastName;
        user.NationalId = request.NationalId;
        user.BirthDate = DateTimeExtensions.UnixTimeStampToDateTime(request.BirthDateTimeStamp);
        user.Gender = request.Gender;

        var result = await _userManager.UpdateAsync(user);
        if (!result.Succeeded)
            throw new AppException(string.Join('|', result.Errors.Select(e => e.Description)));
        if (!request.Password.IsNullOrEmpty())
        {
            if (await _userManager.HasPasswordAsync(user))
                await _userManager.RemovePasswordAsync(user);

            var addPassResult = await _userManager.AddPasswordAsync(user, request.Password);
            if (!addPassResult.Succeeded)
                throw new AppException(string.Join('|', addPassResult.Errors.Select(e => e.Description)));
        }

        return true;
    }

    public async Task<bool> RemoveUserAsync(Guid userId, CancellationToken cancellationToken)
    {
        var user = await _userManager.FindByIdAsync(userId.ToString());
        if (user == null)
            throw new AppException("User not found", ApiResultStatusCode.NotFound);
        var roles = await _userManager.GetRolesAsync(user);
        await _userManager.RemoveFromRolesAsync(user, roles);
        var removeResult = await _userManager.DeleteAsync(user);
        if (!removeResult.Succeeded)
            throw new AppException(string.Join('|', removeResult.Errors.Select(e => e.Description)));

        var customer = await _repositoryWrapper.SetRepository<Customer>()
            .TableNoTracking
            .FirstOrDefaultAsync(c => c.UserId == userId, cancellationToken);
        if (customer != null)
        {

            _repositoryWrapper.SetRepository<Customer>()
                .Delete(customer);
            await _repositoryWrapper.SaveChangesAsync(default);
        }
        var manager = await _repositoryWrapper.SetRepository<Manager>()
            .TableNoTracking
            .FirstOrDefaultAsync(c => c.UserId == userId, cancellationToken);
        if (manager != null)
        {

            _repositoryWrapper.SetRepository<Manager>()
                .Delete(manager);
            await _repositoryWrapper.SaveChangesAsync(default);
        }

        return true;
    }

    public async Task<AdminChangeLogResponseDto> GetAdminChangeLogAsync(CancellationToken cancellationToken = default)
    {
        if (!Guid.TryParse(_currentUserService.UserId, out var userId))
            throw new AppException("Wrong Token", ApiResultStatusCode.UnAuthorized);
        var user = await _userManager.FindByIdAsync(userId.ToString());
        if (user == null)
            throw new AppException("User NotFound", ApiResultStatusCode.NotFound);

        var manager = await _repositoryWrapper.SetRepository<Manager>()
            .TableNoTracking
            .FirstOrDefaultAsync(m => m.UserId == userId, cancellationToken);

        var currentVersion = await _externalFilesService.GetAdminChangeLogAsync(cancellationToken);

        if (manager != null)
        {
            if (!(manager.LatestVersionUsed < currentVersion.VersionNumber)) return currentVersion;
            currentVersion.IsNewVersion = true;
            manager.LatestVersionUsed = currentVersion.VersionNumber;
            _repositoryWrapper.SetRepository<Manager>()
                .Update(manager);
            await _repositoryWrapper.SaveChangesAsync(cancellationToken);
        }

        return currentVersion;
    }


    public async Task<List<ApplicationRole>> GetRolesAsync(int page = 0, CancellationToken cancellationToken = default)
    {
        var roles = await _roleManager.Roles
            .Where(r => r.Name != "RootAdmin")
            .Skip(page * 15)
            .Take(15)
            .ToListAsync(cancellationToken);
        return roles;
    }

    public async Task<List<ApplicationRole>> GetRolesAsync(int? page, string? roleName, CancellationToken cancellationToken = default)
    {
        IQueryable<ApplicationRole> roles;
        if (roleName != null)
            roles = _roleManager.Roles.Where(r => r.Name != "RootAdmin" && r.Name != "Customer" && r.PersianName.Trim().ToLower().Contains(roleName));
        else
            roles = _roleManager.Roles.Where(r => r.Name != "RootAdmin" && r.Name != "Customer");
        if (page != null)
            roles = roles.Skip(page.Value * 15).Take(15);
        else
            roles = roles;
        return await roles.ToListAsync(cancellationToken);
    }

    public async Task<RoleActionRequestDto> GetRoleAsync(Guid roleId, CancellationToken cancellationToken = default)
    {
        var role = (await _roleManager.FindByIdAsync(roleId.ToString()));
        if (role == null)
            throw new AppException("نقش پیدا نشد", ApiResultStatusCode.NotFound);

        var roleDto = role.Adapt<RoleActionRequestDto>();
        roleDto.RoleId = roleId;
        roleDto.Permissions = (await _roleManager.GetClaimsAsync(role))
            .Where(c => c.Type == CustomClaimType.Permission)
            .Select(c => c.Value)
            .ToList();

        return roleDto;
    }

    public async Task<ApplicationRole> CreateRoleAsync(RoleActionRequestDto request, CancellationToken cancellationToken = default)
    {
        if (request.EnglishName.IsNullOrEmpty())
            throw new AppException("لطفا نام انگلیسی را وارد کنید");
        var applicationRole = new ApplicationRole
        {
            EnglishName = request.EnglishName,
            PersianName = request.PersianName,
            Description = request.Description,
            Name = $"{request.EnglishName}"
        };
        var createRoleResult = await _roleManager.CreateAsync(applicationRole);
        if (!createRoleResult.Succeeded)
            throw new AppException(string.Join('|', createRoleResult.Errors));

        foreach (var claim in request.Permissions)
            await _roleManager.AddClaimAsync(applicationRole, new Claim(CustomClaimType.Permission, claim));
        return applicationRole;
    }

    public async Task<bool> EditRoleAsync(RoleActionRequestDto request, CancellationToken cancellationToken = default)
    {
        if (request.EnglishName.IsNullOrEmpty())
            throw new AppException("لطفا نام انگلیسی را وارد کنید");
        var applicationRole = await _roleManager.FindByIdAsync(request.RoleId.ToString());
        if (applicationRole == null)
            throw new AppException("نقش پیدا نشد");

        applicationRole.EnglishName = request.EnglishName;
        applicationRole.PersianName = request.PersianName;
        applicationRole.Description = request.Description;
        applicationRole.Name = $"{request.EnglishName}";

        var createRoleResult = await _roleManager.UpdateAsync(applicationRole);
        if (!createRoleResult.Succeeded)
            throw new AppException(string.Join('|', createRoleResult.Errors));
        var roleClaims = (await _roleManager.GetClaimsAsync(applicationRole)).Where(c => c.Type == CustomClaimType.Permission).ToList();
        foreach (var roleClaim in roleClaims.ToList())
        {
            var removeResult = await _roleManager.RemoveClaimAsync(applicationRole, roleClaim);
            if (!removeResult.Succeeded)
                throw new AppException(string.Join(" | ", removeResult.Errors.Select(e => e.Description)));
        }

        foreach (var claim in request.Permissions)
        {
            var addResult = await _roleManager.AddClaimAsync(applicationRole, new Claim(CustomClaimType.Permission, claim));
            if (!addResult.Succeeded)
                throw new AppException(string.Join(" | ", addResult.Errors.Select(e => e.Description)));
        }

        return true;
    }

    public async Task<bool> RemoveRoleAsync(Guid roleId, CancellationToken cancellationToken = default)
    {
        var applicationRole = await _roleManager.FindByIdAsync(roleId.ToString());
        if (applicationRole == null)
            throw new AppException("User not found", ApiResultStatusCode.NotFound);
        var claims = await _roleManager.GetClaimsAsync(applicationRole);
        foreach (var claim in claims)
            await _roleManager.RemoveClaimAsync(applicationRole, claim);
        var users = await _userManager.GetUsersInRoleAsync(applicationRole.Name);
        foreach (var user in users)
            await _userManager.RemoveFromRoleAsync(user, applicationRole.Name);


        var removeResult = await _roleManager.DeleteAsync(applicationRole);
        if (!removeResult.Succeeded)
            throw new AppException(string.Join('|', removeResult.Errors.Select(e => e.Description)));
        return true;
    }

    public List<ClaimDto> GetPermissions()
    {
        return ApplicationClaims.AllClaimDtos;
    }
}