namespace SeaHaven.Services.DTOs
{
    public class UpliftListItemDTO
    {
        public int Id { get; set; }
        public int DispatchId { get; set; }
        public string? DispatchNumber { get; set; }
        public string? PONumber { get; set; }
        public int? WorkOrderId { get; set; }
        public string? VendorCompanyName { get; set; }
        // Approval queue read contract: flattened work-order context and requester.
        public string? WorkOrderNumber { get; set; }
        public string? WorkOrderSite { get; set; }
        public string? WorkOrderService { get; set; }
        // SH-209: detail modal work-order context.
        public DateTime? WorkOrderScheduledDate { get; set; }
        public string? WorkOrderDispatcherName { get; set; }
        public string? TechnicianName { get; set; }
        public string? RequestedByName { get; set; }
        public string? DecidedByName { get; set; }
        public decimal? CurrentNTE { get; set; }
        public decimal RequestedNTE { get; set; }
        public decimal Delta { get; set; }
        public string? VendorReason { get; set; }
        public int RequiredTier { get; set; }
        public string? Status { get; set; }
        public DateTime? RequestedAt { get; set; }
        public DateTime? DecidedAt { get; set; }
        public string? DecisionNote { get; set; }
        public bool CanDecide { get; set; }
        // SH-101 additions
        public int? EvidenceDocumentId { get; set; }
        public string? EvidenceFileName { get; set; }
        public string? EvidenceContentType { get; set; }
        public long? EvidenceSizeBytes { get; set; }
        public DateTime? ExpiresAt { get; set; }
        public string? NotificationStatus { get; set; }
        public string? NotificationError { get; set; }
        public int AttachmentCount { get; set; }
        public bool WorkOrderClosed { get; set; }
        // Approved-on-WO exposure totals for this item's work order: auto-approved and
        // admin-approved amounts; pending, rejected, cancelled/withdrawn, and revoked
        // requests are excluded.
        public decimal WorkOrderAutoApprovedTotal { get; set; }
        public decimal WorkOrderAdminApprovedTotal { get; set; }
        public decimal WorkOrderApprovedExposureTotal { get; set; }
    }

    public class UpliftListResultDTO
    {
        public int Total { get; set; }
        public int Page { get; set; }
        public int PageSize { get; set; }
        public decimal PendingExposureTotal { get; set; }
        public IEnumerable<UpliftListItemDTO> Items { get; set; } = Enumerable.Empty<UpliftListItemDTO>();
    }

    public class UpliftForDispatchDTO
    {
        public int Id { get; set; }
        public int DispatchId { get; set; }
        public decimal? CurrentNTE { get; set; }
        public decimal RequestedNTE { get; set; }
        public decimal Delta { get; set; }
        public string? VendorReason { get; set; }
        public string? Status { get; set; }
        public int RequiredTier { get; set; }
        public string? RequestedByVendorName { get; set; }
        public DateTime? RequestedAt { get; set; }
        public DateTime? DecidedAt { get; set; }
        public string? DecisionNote { get; set; }
        public string? DecidedByName { get; set; }
        public bool CanDecide { get; set; }
        // SH-101 additions
        public int? EvidenceDocumentId { get; set; }
        public string? EvidenceFileName { get; set; }
        public string? EvidenceContentType { get; set; }
        public long? EvidenceSizeBytes { get; set; }
        public bool EvidenceScanPassed { get; set; }
        public DateTime? ExpiresAt { get; set; }
        public string? NotificationStatus { get; set; }
        public string? NotificationError { get; set; }
    }

    public class UpliftApproveResultDTO
    {
        public int Id { get; set; }
        public string? Status { get; set; }
        public decimal? NTEAmount { get; set; }
    }

    public class UpliftDecisionResultDTO
    {
        public int Id { get; set; }
        public string? Status { get; set; }
    }

    // SH-101: deny alias retained for route compatibility; canonical result is Rejected.
    public class UpliftDenyResultDTO
    {
        public int Id { get; set; }
        public string? Status { get; set; }
    }

    public class UpliftForbiddenException : Exception
    {
        public const string RequestUpliftsDeniedMessage =
            "Your role can't request uplifts on this work order.";

        public UpliftForbiddenException(string message) : base(message) { }
    }

    // SH-101: internal (authorized) download of a Passed UpliftEvidence file linked to a
    // specific uplift request. Outcome-driven so the controller returns 404/423 without
    // exception disclosure. Completion documents are never exposed through this path.
    public sealed class UpliftEvidenceDownloadResultDTO
    {
        public VendorDocumentDownloadOutcome Outcome { get; set; }
        public Stream? Content { get; set; }
        public string? ContentType { get; set; }
        public string? FileName { get; set; }

        public static UpliftEvidenceDownloadResultDTO Ok(Stream content, string contentType, string fileName) => new()
        {
            Outcome = VendorDocumentDownloadOutcome.Ok,
            Content = content,
            ContentType = contentType,
            FileName = fileName
        };

        public static UpliftEvidenceDownloadResultDTO Locked() => new() { Outcome = VendorDocumentDownloadOutcome.Locked };
        public static UpliftEvidenceDownloadResultDTO NotFound() => new() { Outcome = VendorDocumentDownloadOutcome.NotFound };
    }
}