namespace Registration.Data;

/// <summary>
/// Abstraction over registration data. 
/// MockDataService for development, SqlDataService when DB is connected.
/// </summary>
public interface IRegistrationDataService
{
    Task<RegistrationListResult> GetPendingAsync(CancellationToken ct = default);
    Task<Applicant?> GetByIdAsync(string registrationId, CancellationToken ct = default);
    Task<RegistrationResult> RegisterAsync(RegisterRequest request, CancellationToken ct = default);
    Task<RegistrationResult> RejectAsync(string registrationId, string? reason, string? rejectedBy, CancellationToken ct = default);
    Task<RegistrationResult> CompleteAsync(string registrationId, string? platformClientId, CancellationToken ct = default);
}

// ── Models ──

public sealed class Applicant
{
    public string RegistrationId { get; set; } = "";
    public string BusinessName { get; set; } = "";
    public string? WebsiteUrl { get; set; }
    public string? BusinessCategory { get; set; }
    public string? BusinessDescription { get; set; }
    public string? FirstName { get; set; }
    public string? LastName { get; set; }
    public string? ContactName { get; set; }
    public string? ContactEmail { get; set; }
    public string? ContactPhone { get; set; }
    public string? EntraSubjectId { get; set; }
    public string? ClientCategory { get; set; }          // General | Franchisee | Franchisor
    public string Status { get; set; } = "Pending";      // Pending, Approved, Rejected
    public bool PaymentVerified { get; set; }
    public DateTime RegisteredUtc { get; set; }
    public DateTime? ReviewedUtc { get; set; }
    public string? ReviewedBy { get; set; }
    public string? RejectionReason { get; set; }
    public string? PlatformClientId { get; set; }         // Set after approval
}

public sealed class RegisterRequest
{
    public string? BusinessName { get; set; }
    public string? WebsiteUrl { get; set; }
    public string? BusinessCategory { get; set; }
    public string? BusinessDescription { get; set; }
    public string? FirstName { get; set; }
    public string? LastName { get; set; }
    public string? ContactName { get; set; }      // Combined first + last, set by client
    public string? ContactEmail { get; set; }
    public string? ContactPhone { get; set; }
    public string? EntraSubjectId { get; set; }
    public string? ClientCategory { get; set; }          // General | Franchisee | Franchisor
}

public sealed class RegistrationListResult
{
    public bool Ok { get; set; }
    public List<Applicant> Applicants { get; set; } = new();
    public int TotalCount { get; set; }
}

public sealed class RegistrationResult
{
    public bool Ok { get; set; }
    public string? Error { get; set; }
    public string? RegistrationId { get; set; }
}