using InboxIntel.Domain.Common;

namespace InboxIntel.Domain.Entities;

/// <summary>
/// System-wide feature flag (docs/discovery/multi-provider/04). The admin master switches:
/// a disabled flag turns its feature off for EVERYONE regardless of user preferences.
/// Reads are fail-closed — an unknown key counts as disabled.
/// </summary>
public class FeatureFlag : AuditableEntity
{
    /// <summary>Stable key, e.g. "ai.enabled", "provider.google".</summary>
    public string Key { get; set; } = string.Empty;

    public bool Enabled { get; set; }

    /// <summary>True = a user preference may turn the feature OFF for themselves
    /// (never on beyond the flag); false = system-only switch.</summary>
    public bool UserOverridable { get; set; }

    public string? Description { get; set; }
}

/// <summary>
/// Per-user preferences (docs/discovery/multi-provider/04). One row per user, created
/// lazily; absent row = defaults. AiOptIn defaults true so enabling the ai.enabled flag
/// behaves exactly like today until a user opts out.
/// </summary>
public class UserSetting : AuditableEntity
{
    public Guid UserId { get; set; }
    public User? User { get; set; }

    /// <summary>"system" | "light" | "dark".</summary>
    public string Theme { get; set; } = "dark";

    /// <summary>Master per-user AI opt-in (effective only while ai.enabled is on).</summary>
    public bool AiOptIn { get; set; } = true;

    /// <summary>Free-form UI preferences (layout, density, notifications) as JSON.</summary>
    public string? PreferencesJson { get; set; }
}