Library/OwnChar/Data/Managers/DefaultDataManager.cs

using OwnChar.Model;

namespace OwnChar.Data.Managers;

public class DefaultDataManager : IDataManager
{
    private const string defaultUsername = "admin";
    private const string defaultPassword = "admin";

    public IDataProvider DataProvider { get; }

    public DefaultDataManager(IDataProvider dataProvider)
    {
        DataProvider = dataProvider;
        Initialize(false);
    }

    public IEnumerable<UserProfile>? GetMembers(Group group)
    {
        return DataProvider.GetGroupMembers(group);
    }

    public UserProfile? GetOwner(Group group)
    {
        return DataProvider.GetOwner(group);
    }

    public UserProfile? GetUserProfile(UserAccount account)
    {
        ArgumentException.ThrowIfNullOrWhiteSpace(account.Username, nameof(account.Username));
        return DataProvider.GetUserProfile(account.Username);
    }

    public UserAccount? Login(string username, string password)
    {
        return DataProvider.GetUserAccount(username, password);
    }

    public bool Logout(UserAccount? account)
    {
        return true;
    }

    public bool Initialize(bool force)
    {
        var result = false;

        if (force || !DataProvider.IsInitialized())
        {
            result = CreateUserAccount(defaultUsername, Utils.HashPassword(defaultUsername, defaultPassword)) != null;
            DataProvider.SetInitialized();
        }

        return result;
    }

    public UserAccount? CreateUserAccount(string username, string password)
    {
        var account = DataProvider.Create<UserAccount>();
        var profile = DataProvider.Create<UserProfile>();
        var group = DataProvider.Create<Group>();

        ArgumentNullException.ThrowIfNull(account, nameof(account));
        ArgumentNullException.ThrowIfNull(profile, nameof(profile));
        ArgumentNullException.ThrowIfNull(group, nameof(group));

        account.Username = username;
        account.Password = password;

        profile.Name = username;
        DataProvider.SetParent(profile, account);

        group.IsInternal = true;
        DataProvider.SetOwner(group, profile);

        DataProvider.Save(account);
        DataProvider.Save(profile);
        DataProvider.Save(group);

        return account;
    }

    public bool DeleteUserAccount(UserAccount account)
    {
        if (!string.IsNullOrWhiteSpace(account.Username) && DataProvider.GetUserProfile(account.Username) is UserProfile userProfile)
            userProfile.Name = "Deleted user";
        DataProvider.Delete(account);
        return true;
    }
}