/// <summary>
/// Service method to pull single user by username
/// </summary>
/// <param name="username">Username as string</param>
/// <returns>Domain Model User</returns>
public async Task <UserModel> GetUserByUsername(string username)
{
//validate parameter is not null or empty
if (username == null || username == "")
{
throw new ArgumentException("Username not provided");
}
//create new domain user
UserModel user = new UserModel();
//pull user from db
var dbuser = await _userRepository.GetUserByUserName(username);
//validate db call returned user
if (dbuser == null)
{
throw new Exception("User not found");
}
//convert db user to domain user
user = EfUserMapper.DbEntityToCoreModel(dbuser);
if (dbuser.PhotoId != null && dbuser.PhotoId > 0)
{
var photo = await _stockPhoto.GetPhotoById((long)dbuser.PhotoId);
user.Photo = new DomainPhoto()
{
Id = photo.Id, URL = photo.Source.Medium
};
}
return(user);
}
/// <summary>
/// Service method to Create new Core User
/// </summary>
/// <param name="newUser">User Model</param>
/// <returns>User Id </returns>
public async Task <UserModel> CreateNewUser(UserModel newUser)
{
//validate new user
bool validUser = ValidateUser(newUser);
if (validUser)
{
//if user properties are valid
try
{
//check to see if user by user name exists
var existingUser = await _userRepository.GetUserByUserName(newUser.Username);
if (existingUser == null)
{
throw new Exception("User does not exist");
}
}
catch
{
//if user doesn't exist, create new user
var createdUser = await _userRepository.CreateNewUser(EfUserMapper.CoreModelToDbEntity(newUser));
//map db user to domain user
var newDomainUser = EfUserMapper.DbEntityToCoreModel(createdUser);
//map photo id to photo for domain user
if (createdUser.PhotoId != null && createdUser.PhotoId > 0)
{
var photo = await _stockPhoto.GetPhotoById((long)createdUser.PhotoId);
newDomainUser.Photo = new DomainPhoto()
{
Id = photo.Id, URL = photo.Source.Medium
};
}
//return newly created user
return(newDomainUser);
}
// if user exists, throw exception
throw new Exception("Username already exists");
}
else
{
//if input isn't valid, throw exception
throw new Exception("Invalid User");
}
}
/// <summary>
/// Service method to log a user in
/// </summary>
/// <param name="userName">Username</param>
/// <param name="password">Password</param>
/// <returns>username</returns>
public async Task <UserModel> Login(string userName, string password)
{
//validate inputs
if (userName == null || password == null)
{
throw new Exception("Invalid input");
}
//pull user account
var user = await _userRepository.GetUserByUserName(userName);
//validate user exists
if (user == null)
{
throw new Exception("Invalid user");
}
//if user exists validate passwords match
if (user.Password != password)
{
throw new Exception("Invalid password");
}
//if passwords match, update user status
await _userRepository.UpdateUserStatus(user.Id, true);
//map db user to domain user
var domainUser = EfUserMapper.DbEntityToCoreModel(user);
if (user.PhotoId != null && user.PhotoId > 0)
{
var picture = await _stockPhoto.GetPhotoById((long)user.PhotoId);
domainUser.Photo = new DomainPhoto()
{
Id = picture.Id, URL = picture.Source.Medium
};
}
return(domainUser);
}
/// <summary>
/// Service method to pull users by location
/// </summary>
/// <param name="location">Location as string</param>
/// <returns>List of Domain User Models</returns>
public async Task <List <UserModel> > GetUsersByLocation(string location)
{
//validate location input
if (string.IsNullOrEmpty(location))
{
throw new ArgumentException("Location not provided");
}
//create empty list of domain users
List <UserModel> usersByLocation = new List <UserModel>();
var dbUsersList = await _userRepository.GetUsersByLocation(location);
//validate db users list is not empty
if (dbUsersList == null || dbUsersList.Count < 0)
{
throw new Exception("Users not found");
}
//map db users to domain list
foreach (var dbUser in dbUsersList)
{
var user = EfUserMapper.DbEntityToCoreModel(dbUser);
if (dbUser.PhotoId != null && dbUser.PhotoId > 0)
{
var picture = await _stockPhoto.GetPhotoById((long)dbUser.PhotoId);
user.Photo = new DomainPhoto()
{
Id = picture.Id, URL = picture.Source.Medium
};
}
usersByLocation.Add(user);
}
return(usersByLocation);
}
/// <summary>
/// Service method to pull users from database by User Id
/// </summary>
/// <param name="userIds">List of User Ids</param>
/// <returns>List of Domain Model Users</returns>
public async Task <List <UserModel> > GetUsersByUserId(List <long> userIds)
{
//create empty list of domain users
List <UserModel> allUsers = new List <UserModel>();
//pull all users from db
var dbUsers = await _userRepository.GetUsersByUserId(userIds);
if (dbUsers != null)
{
//map each db user to Domain Model and add to domain users list
foreach (var dbUser in dbUsers)
{
var user = EfUserMapper.DbEntityToCoreModel(dbUser);
if (dbUser.PhotoId != null && dbUser.PhotoId > 0)
{
var picture = await _stockPhoto.GetPhotoById((long)dbUser.PhotoId);
user.Photo = new DomainPhoto()
{
Id = picture.Id, URL = picture.Source.Medium
};
}
allUsers.Add(user);
}
}
else
{
throw new Exception("No Users found");
}
//return domain users list
return(allUsers);
}