using SeaHaven.DataServices.Models;

namespace SeaHaven.DataServices.Interfaces
{
    /// <summary>
    /// Live work-order conditions behind the notification feed. Every query applies the
    /// base scope (no templates, no deleted rows), the caller's account scope, and the
    /// shared open rule (not Completed/Canceled, including legacy terminal statuses).
    /// </summary>
    public interface INotificationFeedDataService
    {
        /// <summary>Open work orders with no dispatcher assigned in <paramref name="accountId"/> (null is org-wide).</summary>
        Task<UnassignedWorkOrdersSummary> GetUnassignedSummaryAsync(int? accountId, CancellationToken cancellationToken);

        /// <summary>
        /// Open, Aveta-required work orders scheduled on <paramref name="today"/> or the next day with no
        /// Aveta document attached. Items are the <paramref name="limit"/> latest scheduled.
        /// </summary>
        Task<NotificationCandidatePage> GetAvetaMissingAsync(
            NotificationFeedScope scope, DateOnly today, int limit, CancellationToken cancellationToken);

        /// <summary>
        /// Open work orders scheduled at or before <paramref name="cutoff"/> with no active vendor dispatch,
        /// direct or linked. Items are the <paramref name="limit"/> latest scheduled.
        /// </summary>
        Task<NotificationCandidatePage> GetNoVendorAsync(
            NotificationFeedScope scope, DateTime cutoff, int limit, CancellationToken cancellationToken);

        /// <summary>
        /// Open work orders assigned to the user whose latest assignment happened at or after
        /// <paramref name="since"/> and was made by someone else, read from the latest AssignTo audit
        /// entry (board create writes one too). Returns at most <paramref name="limit"/>, newest first.
        /// </summary>
        Task<IReadOnlyList<NotificationAssignmentCandidate>> GetRecentAssignmentsAsync(
            NotificationPersonalScope scope, DateTime since, int limit, CancellationToken cancellationToken);

        /// <summary>
        /// Comments posted at or after <paramref name="since"/> by someone other than the user, on work orders
        /// the user is assigned to, has commented on, or that mention the user, and that the user has not
        /// commented after. Returns at most <paramref name="limit"/>, newest first.
        /// </summary>
        Task<IReadOnlyList<NotificationCommentCandidate>> GetUnansweredCommentsAsync(
            NotificationPersonalScope scope, DateTime since, int limit, CancellationToken cancellationToken);

        /// <summary>
        /// Approve, reject and revoke decisions made at or after <paramref name="since"/> by someone else on
        /// uplifts the user requested. Returns at most <paramref name="limit"/>, newest first.
        /// </summary>
        Task<IReadOnlyList<NotificationUpliftDecisionCandidate>> GetUpliftDecisionsAsync(
            NotificationPersonalScope scope, DateTime since, int limit, CancellationToken cancellationToken);

        /// <summary>
        /// Open Reactive/Emergency work orders with a SEV 1–5 level, split by creation time: at risk when
        /// created at or before <paramref name="atRisk"/> but after <paramref name="breached"/>, breached when
        /// created at or before <paramref name="breached"/> and not yet acknowledged for their current level.
        /// Breaches are the <paramref name="breachedLimit"/> newest; the at-risk set is bounded by the longest window.
        /// </summary>
        Task<NotificationSlaCandidates> GetSlaCandidatesAsync(
            NotificationFeedScope scope,
            NotificationSlaCutoffs atRisk,
            NotificationSlaCutoffs breached,
            int breachedLimit,
            CancellationToken cancellationToken);

        /// <summary>The work order as an SLA candidate inside <paramref name="scope"/>, or null when it is not one.</summary>
        Task<NotificationSlaCandidate?> GetSlaCandidateAsync(
            NotificationFeedScope scope, int workOrderId, CancellationToken cancellationToken);
    }
}