namespace SeaHaven.Services.DTOs
{
    public enum VendorOperationOutcomeKind { Ok, NotFound, BadRequest, Conflict }

    public sealed class VendorOperationOutcome<T>
    {
        public VendorOperationOutcomeKind Kind { get; init; }
        public T? Value { get; init; }
        public string? Message { get; init; }

        public static VendorOperationOutcome<T> Ok(T value) => new() { Kind = VendorOperationOutcomeKind.Ok, Value = value };
        public static VendorOperationOutcome<T> NotFound(string? message = null) => new() { Kind = VendorOperationOutcomeKind.NotFound, Message = message };
        public static VendorOperationOutcome<T> BadRequest(string message) => new() { Kind = VendorOperationOutcomeKind.BadRequest, Message = message };
        public static VendorOperationOutcome<T> Conflict(string message) => new() { Kind = VendorOperationOutcomeKind.Conflict, Message = message };
    }

    public abstract class VendorNotificationItem
    {
        public DateTime TriggeredAt { get; set; }
    }

    public sealed class NotificationActionDto
    {
        public string Label { get; set; } = "";
        public string Href { get; set; } = "";
    }

    public sealed class NoVendorNotification : VendorNotificationItem
    {
        public string Id { get; set; } = "";
        public string Type { get; set; } = "";
        public string Severity { get; set; } = "";
        public string Group { get; set; } = "";
        public string Title { get; set; } = "";
        public int WorkOrderId { get; set; }
        public string? WorkOrderNumber { get; set; }
        public DateTime ScheduledAt { get; set; }
        public NotificationActionDto Action { get; set; } = new();
    }

    public sealed class ConflictWorkOrderDto
    {
        public int WorkOrderId { get; set; }
        public string? WorkOrderNumber { get; set; }
        public DateTime Start { get; set; }
        public DateTime End { get; set; }
    }

    public sealed class VendorConflictNotification : VendorNotificationItem
    {
        public string Id { get; set; } = "";
        public string Type { get; set; } = "";
        public string Severity { get; set; } = "";
        public string Group { get; set; } = "";
        public string Title { get; set; } = "";
        public int VendorId { get; set; }
        public string? VendorName { get; set; }
        public IReadOnlyList<ConflictWorkOrderDto> WorkOrders { get; set; } = Array.Empty<ConflictWorkOrderDto>();
        public IReadOnlyList<NotificationActionDto> Actions { get; set; } = Array.Empty<NotificationActionDto>();
    }

    public sealed class VendorNotificationsResult
    {
        public DateTime GeneratedAt { get; set; }
        public IReadOnlyList<VendorNotificationItem> Items { get; set; } = Array.Empty<VendorNotificationItem>();
    }

    public sealed class AvailabilityConflictDto
    {
        public int? WorkOrderId { get; set; }
        public string? WorkOrderNumber { get; set; }
        public DateTime Start { get; set; }
        public DateTime End { get; set; }
    }

    public sealed class VendorAvailabilityRow
    {
        public int Id { get; set; }
        public string? CompanyName { get; set; }
        public string? ContactName { get; set; }
        public string? TradeSpecialties { get; set; }
        public string AvailabilityStatus { get; set; } = "";
        public DateTime? AvailabilityUpdatedAt { get; set; }
        public bool IsPreferred { get; set; }
        public int? PreferenceRank { get; set; }
        public IReadOnlyList<AvailabilityConflictDto> Conflicts { get; set; } = Array.Empty<AvailabilityConflictDto>();
    }

    public sealed class VendorAvailabilityResult
    {
        public DateTime GeneratedAt { get; set; }
        public int StaleAfterHours { get; set; }
        public IReadOnlyList<VendorAvailabilityRow> Data { get; set; } = Array.Empty<VendorAvailabilityRow>();
    }

    public sealed class VendorAvailabilityUpdateResult
    {
        public int Id { get; set; }
        public string? AvailabilityStatus { get; set; }
        public DateTime? AvailabilityUpdatedAt { get; set; }
    }

    public sealed class SitePreferenceRow
    {
        public int Id { get; set; }
        public int LocationId { get; set; }
        public int VendorId { get; set; }
        public string? VendorName { get; set; }
        public string? Trade { get; set; }
        public int? SortOrder { get; set; }
        public bool IsStale { get; set; }
        public DateTime? LastModificationTime { get; set; }
        public string? UpdatedBy { get; set; }
    }

    public sealed class DocumentReviewResult
    {
        public int Id { get; set; }
        public string? ReviewStatus { get; set; }
        public string? RejectionReason { get; set; }
        public DateTime? ReviewedAt { get; set; }
    }

    public sealed class CommercialStatusResult
    {
        public int Id { get; set; }
        public string? PONumber { get; set; }
        public string? InvoiceNumber { get; set; }
        public string? InvoiceStatus { get; set; }
        public string? PaymentStatus { get; set; }
        public DateTime? CommercialStatusUpdatedAt { get; set; }
    }

    public sealed class VendorAssignmentResult
    {
        public int Id { get; set; }
        public int VendorId { get; set; }
        public string? VendorName { get; set; }
        public DateTime? EstimatedArrivalAt { get; set; }
        public bool EtaManualOverride { get; set; }
        public string AvailabilityStatus { get; set; } = "";
        public IReadOnlyList<AvailabilityConflictDto> Conflicts { get; set; } = Array.Empty<AvailabilityConflictDto>();
    }

    public sealed class VendorInsightRow
    {
        public int VendorId { get; set; }
        public string Vendor { get; set; } = "";
        public int CompletedJobs { get; set; }
        public decimal CancellationRefusalRate { get; set; }
        public decimal OnTimeArrivalRate { get; set; }
        public decimal OnTimeCompletionRate { get; set; }
        public double? AverageCycleHours { get; set; }
    }
}