PowderCoatingLogix/src/PowderCoating.Core/Entities/Customer.cs

namespace PowderCoating.Core.Entities;

public class Customer : BaseEntity
{
    public string? CompanyName { get; set; }
    public string? ContactFirstName { get; set; }
    public string? ContactLastName { get; set; }
    public string? Email { get; set; }
    public string? BillingEmail { get; set; }  // Accounting/invoicing email for commercial customers
    public string? Phone { get; set; }
    public string? MobilePhone { get; set; }
    public string? Address { get; set; }
    public string? City { get; set; }
    public string? State { get; set; }
    public string? ZipCode { get; set; }
    public string? Country { get; set; } = "USA";
    
    // Business Information
    public bool IsCommercial { get; set; }
    public string? TaxId { get; set; }
    public decimal CreditLimit { get; set; }
    public decimal CurrentBalance { get; set; }
    public decimal CreditBalance { get; set; }  // Available store credit (credit memos)
    public string? PaymentTerms { get; set; }
    public int? PricingTierId { get; set; }

    // Tax Exemption
    public bool IsTaxExempt { get; set; }
    public byte[]? TaxExemptCertificateData { get; set; }
    public string? TaxExemptCertificateContentType { get; set; }
    public string? TaxExemptCertificateFileName { get; set; }

    // Relationships
    public virtual PricingTier? PricingTier { get; set; }
    public virtual ICollection<Job> Jobs { get; set; } = new List<Job>();
    public virtual ICollection<Quote> Quotes { get; set; } = new List<Quote>();
    public virtual ICollection<CustomerNote> CustomerNotes { get; set; } = new List<CustomerNote>();
    
    // Additional fields
    public string? GeneralNotes { get; set; }
    public bool IsActive { get; set; } = true;
    public DateTime? LastContactDate { get; set; }

    // Notification preferences
    public bool NotifyByEmail { get; set; } = true;
    // NotifyBySms is only set to true after explicit staff-recorded consent (TCPA compliance)
    public bool NotifyBySms { get; set; } = false;
    // Unique token used in email unsubscribe links (no auth required)
    public string UnsubscribeToken { get; set; } = Guid.NewGuid().ToString("N");
    // SMS consent tracking (TCPA compliance)
    public DateTime? SmsConsentedAt { get; set; }
    public string? SmsConsentMethod { get; set; }
    /// <summary>Set when the customer replies STOP or is manually opted out. Null means they have never opted out.</summary>
    public DateTime? SmsOptedOutAt { get; set; }

    public virtual ICollection<NotificationLog> NotificationLogs { get; set; } = new List<NotificationLog>();
    public virtual ICollection<Invoice> Invoices { get; set; } = new List<Invoice>();
}