FlowAPI.Domain/Entities/User.cs

namespace FlowAPI.Domain.Entities
{
    public class User
    {
        public Guid Id { get; set; }
        public string Email { get; set; } = string.Empty;
        public string PasswordHash { get; set; } = string.Empty;
        public string DisplayName { get; set; } = string.Empty;
        public bool IsPremium { get; set; }
        public string? AvatarUrl { get; set; }
        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;

        // Subscription Tier info
        public string SubscriptionTier { get; set; } = "Free"; // "Free", "Pro", "Ultra"
        public int DailyAiGenerationsCount { get; set; }
        public DateTime LastAiGenerationDate { get; set; } = DateTime.UtcNow;

        // Navigation properties
        public ICollection<Graph> Graphs { get; set; } = new List<Graph>();
        public ICollection<HabitRecord> HabitRecords { get; set; } = new List<HabitRecord>();
        public ICollection<UserAchievement> UserAchievements { get; set; } = new List<UserAchievement>();
        public ICollection<SharedGraph> SharedGraphs { get; set; } = new List<SharedGraph>();
    }
}