using System.Collections.Generic;
using UnityEngine;

namespace IdleSpectator;

public enum InterestLeadKind
{
    EventLed = 0,
    CharacterLed = 1
}

public enum InterestCompletionKind
{
    /// <summary>One-shot narrative dwell (WorldLog, harness tips).</summary>
    FixedDwell = 0,
    /// <summary>Combat / hunt / fire while participants stay live.</summary>
    CombatActive = 1,
    /// <summary>Owning AI task / beat still live.</summary>
    ActivityActive = 2,
    /// <summary>Grief / family emotion with survivor + optional crying.</summary>
    HappinessGrief = 3,
    /// <summary>Status phase still present on subject.</summary>
    StatusPhase = 4,
    /// <summary>Character vignette until max watch or cold activity.</summary>
    CharacterVignette = 5,
    /// <summary>Harness-forced session; active until released or max cap.</summary>
    Manual = 6
}

/// <summary>
/// Durable interest scene candidate. <see cref="TotalScore"/> is the sole ranking signal;
/// typed fields (lead, completion, combat) gate interrupt policy.
/// </summary>
public sealed class InterestCandidate
{
    public string Key = "";
    public InterestLeadKind LeadKind = InterestLeadKind.EventLed;
    public string Category = "";
    public string Source = "";
    public float EventStrength;
    public float CharacterSignificance;
    public float Novelty = 1f;
    public float VisualConfidence = 0.5f;
    public float TotalScore;
    /// <summary>Live fighters / participants in a cluster (battles, multi-unit events).</summary>
    public int ParticipantCount;
    /// <summary>Peak fighters seen this combat scene (scale demotion hysteresis).</summary>
    public int CombatPeakParticipants;
    /// <summary>Sticky opposing camps for the orange tip (species/kingdom keys).</summary>
    public EnsembleFrame CombatSideFrame = EnsembleFrame.CountOnly;
    public string CombatSideAKey = "";
    public string CombatSideADisplay = "";
    public string CombatSideAKingdom = "";
    public int CombatSideACount;
    public string CombatSideBKey = "";
    public string CombatSideBDisplay = "";
    public string CombatSideBKingdom = "";
    public int CombatSideBCount;
    /// <summary>Tracked camp members for sticky scoreboard (kept until combat grace ends).</summary>
    public readonly List<long> CombatSideAIds = new List<long>(8);
    public readonly List<long> CombatSideBIds = new List<long>(8);
    /// <summary>Notable (king/favorite/leader/high renown) participants in the cluster.</summary>
    public int NotableParticipantCount;
    public Vector3 Position;
    public Actor FollowUnit;
    public Actor RelatedUnit;
    public long SubjectId;
    public long RelatedId;
    public string Label = "";
    public string AssetId = "";
    public string SpeciesId = "";
    public string Verb = "";
    public string CityKey = "";
    public string KingdomKey = "";
    public string RegionKey = "";
    public string HappinessEffectId = "";
    public string StatusId = "";
    public string CorrelationKey = "";
    public float CreatedAt;
    public float LastSeenAt;
    public float ExpiresAt;
    public float MinWatch = 1.5f;
    public float MaxWatch = 45f;
    public InterestCompletionKind Completion = InterestCompletionKind.FixedDwell;
    public bool Resumable = true;
    public bool ForceActive;
    public bool Selected;
    public string ScoreDetail = "";
    public readonly List<long> ParticipantIds = new List<long>(4);

    public bool HasFollowUnit => FollowUnit != null && FollowUnit.isAlive();

    public bool HasValidPosition =>
        HasFollowUnit || (Position != Vector3.zero && !float.IsNaN(Position.x));

    public bool HasStickyCombatSides =>
        !string.IsNullOrEmpty(CombatSideAKey)
        && !string.IsNullOrEmpty(CombatSideBKey)
        && (CombatSideFrame == EnsembleFrame.SpeciesVsSpecies
            || CombatSideFrame == EnsembleFrame.KingdomVsKingdom);

    public void ClearCombatSticky()
    {
        CombatPeakParticipants = 0;
        CombatSideFrame = EnsembleFrame.CountOnly;
        CombatSideAKey = "";
        CombatSideADisplay = "";
        CombatSideAKingdom = "";
        CombatSideACount = 0;
        CombatSideBKey = "";
        CombatSideBDisplay = "";
        CombatSideBKingdom = "";
        CombatSideBCount = 0;
        CombatSideAIds.Clear();
        CombatSideBIds.Clear();
    }

    public InterestEvent ToInterestEvent()
    {
        return new InterestEvent
        {
            Score = TotalScore,
            Position = Position,
            FollowUnit = FollowUnit,
            RelatedUnit = RelatedUnit,
            Label = Label,
            CreatedAt = CreatedAt,
            AssetId = AssetId,
            ParticipantCount = ParticipantCount,
            NotableParticipantCount = NotableParticipantCount,
            CharacterSignificance = CharacterSignificance
        };
    }

    public InterestCandidate CloneShallow()
    {
        var copy = new InterestCandidate
        {
            Key = Key,
            LeadKind = LeadKind,
            Category = Category,
            Source = Source,
            EventStrength = EventStrength,
            CharacterSignificance = CharacterSignificance,
            Novelty = Novelty,
            VisualConfidence = VisualConfidence,
            TotalScore = TotalScore,
            ParticipantCount = ParticipantCount,
            CombatPeakParticipants = CombatPeakParticipants,
            CombatSideFrame = CombatSideFrame,
            CombatSideAKey = CombatSideAKey,
            CombatSideADisplay = CombatSideADisplay,
            CombatSideAKingdom = CombatSideAKingdom,
            CombatSideACount = CombatSideACount,
            CombatSideBKey = CombatSideBKey,
            CombatSideBDisplay = CombatSideBDisplay,
            CombatSideBKingdom = CombatSideBKingdom,
            CombatSideBCount = CombatSideBCount,
            NotableParticipantCount = NotableParticipantCount,
            Position = Position,
            FollowUnit = FollowUnit,
            RelatedUnit = RelatedUnit,
            SubjectId = SubjectId,
            RelatedId = RelatedId,
            Label = Label,
            AssetId = AssetId,
            SpeciesId = SpeciesId,
            Verb = Verb,
            CityKey = CityKey,
            KingdomKey = KingdomKey,
            RegionKey = RegionKey,
            HappinessEffectId = HappinessEffectId,
            StatusId = StatusId,
            CorrelationKey = CorrelationKey,
            CreatedAt = CreatedAt,
            LastSeenAt = LastSeenAt,
            ExpiresAt = ExpiresAt,
            MinWatch = MinWatch,
            MaxWatch = MaxWatch,
            Completion = Completion,
            Resumable = Resumable,
            ForceActive = ForceActive,
            Selected = Selected,
            ScoreDetail = ScoreDetail
        };
        for (int i = 0; i < ParticipantIds.Count; i++)
        {
            copy.ParticipantIds.Add(ParticipantIds[i]);
        }

        for (int i = 0; i < CombatSideAIds.Count; i++)
        {
            copy.CombatSideAIds.Add(CombatSideAIds[i]);
        }

        for (int i = 0; i < CombatSideBIds.Count; i++)
        {
            copy.CombatSideBIds.Add(CombatSideBIds[i]);
        }

        return copy;
    }
}