using System.Collections.Generic;
using NeoModLoader.services;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.UI;

namespace IdleSpectator;

/// <summary>
/// Compact dossier: nametag (species/name/lv/task/sex), avatar + mini History, packed traits, reason.
/// </summary>
public static class WatchCaption
{
    private const float PanelWidthMax = 420f;
    private const float SpeciesSize = 16f;
    private const float SexSize = 14f;
    private const float LiveMax = 44f;
    private const float ChipIcon = 12f;
    private const float TraitIcon = 12f;
    private const float HistoryIcon = 10f;
    private const float HistoryColMinW = 118f;
    private const float PadX = 4f;
    /// <summary>Inset from the canvas top-right corner (grows left via pivot).</summary>
    private const float ScreenInset = 12f;
    private const float PadTop = 4f;
    private const float HeaderH = 18f;
    private const float BodyH = 44f;
    private const float TraitsH = 14f;
    private const float ReasonH = 14f;
    private const float HistoryLineMinH = 13f;
    private const float HistoryLineMaxH = 100f;
    private const float Gap = 2f;
    private const int HistoryPeekMax = 3;
    private const float BtnSize = 16f;
    private const float StatusBannerSeconds = 5f;

    /// <summary>History column grows with content until the dossier hits <see cref="PanelWidthMax"/>.</summary>
    private static float HistoryColMaxW =>
        Mathf.Max(HistoryColMinW, PanelWidthMax - PadX * 2f - LiveMax - 4f);

    private static float _panelWidth = LiveMax + PadX * 2f;

    private static readonly Color NameColor = new Color(0.95f, 0.93f, 0.88f, 1f);
    private static readonly Color StatValueColor = new Color(1f, 0.62f, 0.28f, 1f);
    private static readonly Color TaskColor = new Color(0.26f, 1f, 0.26f, 1f);
    private static readonly Color ReasonColor = new Color(0.95f, 0.72f, 0.38f, 1f);
    private static readonly Color TraitNameColor = new Color(0.78f, 0.8f, 0.84f, 1f);
    private static readonly Color HistoryTextColor = new Color(0.82f, 0.84f, 0.86f, 1f);
    private static readonly Color StatusBannerColor = new Color(1f, 0.55f, 0.18f, 1f);

    private static GameObject _root;
    private static RectTransform _rootRt;
    private static Image _speciesIcon;
    private static Image _sexIcon;
    private static Text _nameText;
    private static Text _reasonText;

    private static Image _levelIcon;
    private static Text _levelValue;
    private static Image _taskIcon;
    private static Text _taskText;

    private static readonly TraitSlot[] _traitSlots = new TraitSlot[3];
    private static GameObject _traitsRow;

    private static GameObject _historyCol;
    private static Image _activityBoxBg;
    private static RectTransform _lifeSep;
    private static readonly HistorySlot[] _historySlots = new HistorySlot[HistoryPeekMax];
    private static readonly float[] _historySlotHeights = new float[HistoryPeekMax];
    private static readonly bool[] _historySlotIsActivity = new bool[HistoryPeekMax];
    private static float _historyColW = HistoryColMinW;
    private static int _lastHistoryCount = -1;
    private static long _lastHistorySubjectId;
    private const float LifeSepH = 3f;

    private static Button _favoriteBtn;
    private static Image _favoriteIcon;
    private static Button _historyBtn;
    private static Image _historyIcon;
    private static bool _pinnedWhilePaused;

    private static UnitDossier _current;
    private static Actor _boundActor;
    private static bool _visible;
    private static string _statusBanner = "";
    private static float _statusBannerUntil;

    private sealed class TraitSlot
    {
        public GameObject Root;
        public Image Icon;
        public Text Label;
    }

    private sealed class HistorySlot
    {
        public GameObject Root;
        public Image Icon;
        public Text Label;
    }

    public static UnitDossier Current => _current;

    public static string LastHeadline { get; private set; } = "";

    public static string LastDetail { get; private set; } = "";

    public static string LastCaptionText { get; private set; } = "";

    /// <summary>Harness: newest mini-history line currently shown (if any).</summary>
    public static string LastHistoryPreview { get; private set; } = "";

    /// <summary>Harness: all visible peek lines joined (activity + life).</summary>
    public static string LastHistoryJoined { get; private set; } = "";

    /// <summary>Harness: how many history lines are currently visible on the dossier.</summary>
    public static int LastHistoryShown { get; private set; }

    /// <summary>Harness: activity feed lines currently visible.</summary>
    public static int LastActivityShown { get; private set; }

    /// <summary>Harness: Chronicle Life lines currently visible in the dossier column.</summary>
    public static int LastLifeShown { get; private set; }

    /// <summary>Current dossier subject id (0 if none).</summary>
    public static long CurrentUnitId => _current != null ? _current.UnitId : 0;

    /// <summary>True when dossier is shown while idle is paused for Lore browsing.</summary>
    public static bool PinnedWhilePaused => _pinnedWhilePaused;

    /// <summary>True when the history column fills the body width (no empty strip beside it).</summary>
    public static bool LastHistoryFillsBody { get; private set; }

    /// <summary>Legacy alias; dossier history is no longer scrollable.</summary>
    public static bool LastHistoryScrollable => false;

    /// <summary>Legacy alias for harness compatibility.</summary>
    public static bool HistoryExpanded => false;

    /// <summary>Harness: comma-joined top trait labels currently shown.</summary>
    public static string LastTraitsPreview { get; private set; } = "";

    public static Vector2 LastPanelSize { get; private set; }

    public static bool LastLayoutOk { get; private set; }

    /// <summary>True when the dossier card GameObject is active.</summary>
    public static bool Visible => _visible && _root != null && _root.activeSelf;

    /// <summary>Screen-pixel rect of the dossier card (Unity bottom-left origin), if visible.</summary>
    public static bool TryGetScreenPixelRect(out Rect pixelRect)
    {
        pixelRect = default;
        if (_rootRt == null || _root == null || !_root.activeInHierarchy)
        {
            return false;
        }

        Vector3[] corners = new Vector3[4];
        _rootRt.GetWorldCorners(corners);
        float xMin = float.MaxValue;
        float yMin = float.MaxValue;
        float xMax = float.MinValue;
        float yMax = float.MinValue;
        for (int i = 0; i < 4; i++)
        {
            Vector2 sp = RectTransformUtility.WorldToScreenPoint(null, corners[i]);
            xMin = Mathf.Min(xMin, sp.x);
            yMin = Mathf.Min(yMin, sp.y);
            xMax = Mathf.Max(xMax, sp.x);
            yMax = Mathf.Max(yMax, sp.y);
        }

        float pad = 4f;
        pixelRect = Rect.MinMaxRect(xMin - pad, yMin - pad, xMax + pad, yMax + pad);
        return pixelRect.width > 8f && pixelRect.height > 8f;
    }

    /// <summary>True if the mouse is over the dossier panel (including the live sprite).</summary>
    public static bool IsPointerOverPanel()
    {
        if (_rootRt == null || _root == null || !_root.activeInHierarchy)
        {
            return false;
        }

        return RectTransformUtility.RectangleContainsScreenPoint(_rootRt, Input.mousePosition, null);
    }

    /// <summary>True if the mouse is over the dossier live sprite only.</summary>
    public static bool IsPointerOverAvatar()
    {
        return DossierAvatar.ContainsScreenPoint(Input.mousePosition);
    }

    /// <summary>
    /// Favorite control (and the panel chrome around it).
    /// Used so idle does not treat those clicks as "manual pause".
    /// </summary>
    public static bool IsPointerOverInteractive()
    {
        if (!IsPointerOverPanel())
        {
            return false;
        }

        if (IsPointerOverButton(_favoriteBtn) || IsPointerOverButton(_historyBtn))
        {
            return true;
        }

        // Whole dossier counts as UI while visible so history/trait chrome is safe to click.
        return _root != null && _root.activeInHierarchy;
    }

    private static bool IsPointerOverButton(Button button)
    {
        if (button == null || !button.gameObject.activeInHierarchy)
        {
            return false;
        }

        RectTransform rt = button.GetComponent<RectTransform>();
        return rt != null
               && RectTransformUtility.RectangleContainsScreenPoint(rt, Input.mousePosition, null);
    }

    public static void ToggleFavorite()
    {
        Actor actor = _boundActor;
        if (actor == null || !actor.isAlive())
        {
            if (MoveCamera.hasFocusUnit())
            {
                actor = MoveCamera._focus_unit;
            }
        }

        if (actor != null && actor.isAlive())
        {
            try
            {
                actor.switchFavorite();
            }
            catch
            {
                return;
            }

            Chronicle.SyncFavoriteFromActor(actor);
            RefreshFavoriteVisual(actor);
            LogService.LogInfo(
                $"[IdleSpectator] Favorite toggled name={SafeActorName(actor)} favorite={actor.isFavorite()}");
            return;
        }

        // Fallen / archive: track in Chronicle so the Fallen filter stays consistent.
        long id = _current != null ? _current.UnitId : 0;
        if (id == 0)
        {
            id = Chronicle.CurrentHistorySubjectId();
        }

        if (id == 0)
        {
            return;
        }

        bool next = !Chronicle.IsFavoriteSubject(id);
        Chronicle.SetFavoriteSubject(id, next);
        if (_current != null && _current.UnitId == id)
        {
            _current.IsFavorite = next;
        }

        RefreshFavoriteVisual(null);
        LogService.LogInfo($"[IdleSpectator] Favorite toggled fallen id={id} favorite={next}");
    }

    public static void PinWhilePaused()
    {
        _pinnedWhilePaused = true;
        if (ModSettings.ShowDossierCaption)
        {
            SetVisible(true);
        }
    }

    public static void ClearPausePin()
    {
        _pinnedWhilePaused = false;
    }

    /// <summary>Open this unit's full history in the Lore panel and pause idle auto-follow.</summary>
    public static void OpenFullHistoryInLore()
    {
        // Prefer the live camera focus so a pinned dossier cannot open the wrong unit's lore.
        long id = Chronicle.CurrentHistorySubjectId();
        if (id == 0 && _current != null)
        {
            id = _current.UnitId;
        }

        if (id == 0)
        {
            return;
        }

        ChronicleHud.OpenUnitHistory(id, pauseIdle: true, followFocus: true);
        LogService.LogInfo($"[IdleSpectator] Open full history in Lore unitId={id}");
    }

    private static string SafeActorName(Actor actor)
    {
        try
        {
            string n = actor.getName();
            if (!string.IsNullOrEmpty(n))
            {
                return n;
            }
        }
        catch
        {
            // ignore
        }

        return "unit";
    }

    public static void Clear()
    {
        _current = null;
        _boundActor = null;
        LastHeadline = "";
        LastDetail = "";
        LastCaptionText = "";
        LastHistoryPreview = "";
        LastHistoryJoined = "";
        LastHistoryShown = 0;
        LastActivityShown = 0;
        LastLifeShown = 0;
        LastHistoryFillsBody = false;
        _pinnedWhilePaused = false;
        LastTraitsPreview = "";
        LastPanelSize = Vector2.zero;
        LastLayoutOk = false;
        _lastHistoryCount = -1;
        _lastHistorySubjectId = 0;
        _historyColW = HistoryColMinW;
        _statusBanner = "";
        _statusBannerUntil = 0f;
        ApplyVisual(null, null);
        SetVisible(false);
    }

    /// <summary>
    /// Show a short status line on the dossier (replaces the top WorldTip for pause exits).
    /// </summary>
    public static void ShowStatusBanner(string message, float seconds = StatusBannerSeconds)
    {
        if (!ModSettings.ShowDossierCaption || string.IsNullOrEmpty(message))
        {
            return;
        }

        EnsureBuilt();
        _statusBanner = message;
        _statusBannerUntil = Time.unscaledTime + Mathf.Max(0.5f, seconds);

        if (_nameText != null && (string.IsNullOrEmpty(_nameText.text) || _current == null))
        {
            _nameText.text = "Idle Spectator";
            LastHeadline = "Idle Spectator";
        }

        if (_reasonText != null)
        {
            _reasonText.text = message;
            _reasonText.color = StatusBannerColor;
            _reasonText.supportRichText = false;
            _reasonText.resizeTextForBestFit = false;
            _reasonText.horizontalOverflow = HorizontalWrapMode.Wrap;
            _reasonText.verticalOverflow = VerticalWrapMode.Overflow;
            _reasonText.gameObject.SetActive(true);
        }

        LastCaptionText = (LastHeadline ?? "Idle Spectator") + " | " + message;
        // Re-fill from the current subject so Relayout cannot resurrect stale history slots
        // from a previously focused unit (activeSelf stays true while the column is hidden).
        int hist = _current != null ? FillHistory(_current.UnitId) : 0;
        int traits = CountActiveTraitSlots();
        bool hasTask = _taskText != null && _taskText.gameObject.activeSelf;
        bool hasBody = _boundActor != null || hist > 0 || _current != null;
        Relayout(hasBody, traits, hasTask, hasReason: true, hist);
        SetVisible(true);
        LogService.LogInfo("[IdleSpectator][CAPTION] status=" + message);
    }

    public static void SetFromInterest(InterestEvent interest)
    {
        Actor unit = interest != null && interest.HasFollowUnit
            ? interest.FollowUnit
            : (MoveCamera.hasFocusUnit() ? MoveCamera._focus_unit : null);

        if (unit == null || !unit.isAlive())
        {
            if (interest != null)
            {
                LastHeadline = CameraDirector.FormatWatchTip(interest);
                LastDetail = "";
                LastCaptionText = LastHeadline;
                LastHistoryPreview = "";
                LastHistoryJoined = "";
                _current = null;
                _boundActor = null;
                EnsureBuilt();
                ApplyVisual(null, null);
                if (_nameText != null)
                {
                    _nameText.text = LastHeadline;
                }

                Relayout(false, 0, false, false, 0);
                SetVisible(ModSettings.ShowDossierCaption && SpectatorMode.Active);
            }

            return;
        }

        SetFromActor(unit, interest?.Tier, interest?.Label);
    }

    public static void SetFromActor(Actor actor, InterestTier? tier = null, string label = null)
    {
        if (!_pinnedWhilePaused)
        {
            ClearStatusBanner();
        }

        UnitDossier dossier = UnitDossier.FromActor(actor, tier, label);
        _current = dossier;
        _boundActor = actor;
        LastHeadline = dossier.Headline ?? "";
        LastDetail = dossier.DetailLine ?? "";
        LastCaptionText = dossier.CaptionText ?? "";
        EnsureBuilt();
        ApplyVisual(actor, dossier);
        SetVisible(ModSettings.ShowDossierCaption && (SpectatorMode.Active || _pinnedWhilePaused));
        LogService.LogInfo("[IdleSpectator][CAPTION] " + LastCaptionText.Replace("\n", " | "));
    }

    /// <summary>
    /// Show a stored dossier with no living actor (Fallen archive last living state).
    /// </summary>
    public static void SetFromDossier(UnitDossier dossier)
    {
        if (dossier == null || dossier.UnitId == 0)
        {
            return;
        }

        if (!_pinnedWhilePaused)
        {
            ClearStatusBanner();
        }

        _current = dossier;
        _boundActor = null;
        LastHeadline = dossier.Headline ?? "";
        LastDetail = dossier.DetailLine ?? "";
        LastCaptionText = dossier.CaptionText ?? "";
        EnsureBuilt();
        ApplyVisual(null, dossier);
        SetVisible(ModSettings.ShowDossierCaption && (SpectatorMode.Active || _pinnedWhilePaused));
        LogService.LogInfo(
            "[IdleSpectator][CAPTION] fallen dossier " + LastCaptionText.Replace("\n", " | "));
    }

    public static void Update()
    {
        // History / manual pause: keep dossier pinned even after the banner timer expires.
        if (_pinnedWhilePaused && ModSettings.ShowDossierCaption)
        {
            if (SpectatorMode.Active)
            {
                ClearPausePin();
                ClearStatusBanner();
            }
            else
            {
                if (!_visible)
                {
                    SetVisible(true);
                }

                // Keep the pause reason visible while browsing.
                if (!string.IsNullOrEmpty(_statusBanner))
                {
                    _statusBannerUntil = Time.unscaledTime + 1f;
                }

                RefreshLivePortrait();
                RefreshHistoryIfChanged();
                return;
            }
        }

        if (HasStatusBanner())
        {
            if (!_visible && ModSettings.ShowDossierCaption)
            {
                SetVisible(true);
            }

            if (!SpectatorMode.Active)
            {
                return;
            }

            // Idle resumed - drop banner and restore normal reason styling next ApplyVisual.
            ClearStatusBanner();
        }

        if (!SpectatorMode.Active || !ModSettings.ShowDossierCaption)
        {
            if (_visible)
            {
                SetVisible(false);
            }

            return;
        }

        if (_root == null && !string.IsNullOrEmpty(LastCaptionText))
        {
            EnsureBuilt();
            Actor focus = MoveCamera.hasFocusUnit() ? MoveCamera._focus_unit : null;
            if (_current != null)
            {
                ApplyVisual(focus ?? _boundActor, _current);
            }
            else if (_nameText != null)
            {
                _nameText.text = LastHeadline;
                Relayout(false, 0, false, false, 0);
            }

            SetVisible(true);
        }

        RefreshLivePortrait();
        RefreshHistoryIfChanged();
    }

    private static bool HasStatusBanner()
    {
        return !string.IsNullOrEmpty(_statusBanner) && Time.unscaledTime < _statusBannerUntil;
    }

    private static void ClearStatusBanner()
    {
        _statusBanner = "";
        _statusBannerUntil = 0f;
        if (_reasonText != null)
        {
            _reasonText.color = ReasonColor;
        }
    }

    private static int CountActiveHistorySlots()
    {
        if (_historyCol == null || !_historyCol.activeSelf)
        {
            return 0;
        }

        int n = 0;
        for (int i = 0; i < _historySlots.Length; i++)
        {
            if (_historySlots[i]?.Root != null && _historySlots[i].Root.activeSelf)
            {
                n++;
            }
        }

        return n;
    }

    private static int CountActiveTraitSlots()
    {
        int n = 0;
        for (int i = 0; i < _traitSlots.Length; i++)
        {
            if (_traitSlots[i]?.Root != null && _traitSlots[i].Root.activeSelf)
            {
                n++;
            }
        }

        return n;
    }

    private static void RefreshLivePortrait()
    {
        if (!_visible)
        {
            return;
        }

        Actor actor = _boundActor;
        if (actor == null || !actor.isAlive())
        {
            if (MoveCamera.hasFocusUnit())
            {
                actor = MoveCamera._focus_unit;
            }
        }

        if (actor == null || !actor.isAlive())
        {
            return;
        }

        if (_current != null && actor.getID() != _current.UnitId)
        {
            return;
        }

        DossierAvatar.Show(actor);
        BringHeaderFront();
    }

    private static void BringHeaderFront()
    {
        // Draw nametag above vanilla avatar chrome (which can paint outside its host).
        void Front(Component c)
        {
            if (c != null)
            {
                c.transform.SetAsLastSibling();
            }
        }

        Front(_speciesIcon);
        Front(_nameText);
        Front(_levelIcon);
        Front(_levelValue);
        Front(_taskIcon);
        Front(_taskText);
        Front(_sexIcon);
        Front(_favoriteBtn);
        Front(_historyBtn);
    }

    /// <summary>Harness: rebuild the dossier peek column after activity injects.</summary>
    public static void ForceRefreshHistory()
    {
        _lastHistoryCount = -1;
        if (!_visible || _current == null)
        {
            return;
        }

        RefreshHistoryIfChanged();
    }

    private static void RefreshHistoryIfChanged()
    {
        if (!_visible || _current == null)
        {
            return;
        }

        long id = _current.UnitId;
        int count = ActivityLog.CountFor(id) + Chronicle.HistoryCountFor(id);
        if (id == _lastHistorySubjectId && count == _lastHistoryCount)
        {
            return;
        }

        int shown = FillHistory(id);
        // Re-run layout only when history presence flips or line count changes.
        bool hasBody = _current != null;
        bool hasTask = _taskText != null && _taskText.gameObject.activeSelf;
        bool hasReason = _reasonText != null && _reasonText.gameObject.activeSelf;
        int traits = 0;
        if (_traitsRow != null && _traitsRow.activeSelf)
        {
            for (int i = 0; i < _traitSlots.Length; i++)
            {
                if (_traitSlots[i] != null && _traitSlots[i].Root != null && _traitSlots[i].Root.activeSelf)
                {
                    traits++;
                }
            }
        }

        Relayout(hasBody, traits, hasTask, hasReason, shown);
    }

    private static void ApplyVisual(Actor actor, UnitDossier dossier)
    {
        EnsureBuilt();
        if (_root == null)
        {
            return;
        }

        bool hasLive = actor != null
                       && actor.isAlive()
                       && dossier != null
                       && actor.getID() == dossier.UnitId;
        _boundActor = hasLive ? actor : null;

        if (_speciesIcon != null)
        {
            Sprite species = null;
            if (hasLive)
            {
                species = HudIcons.FromActor(actor);
            }
            else if (dossier != null)
            {
                species = HudIcons.FromSpeciesId(dossier.SpeciesId);
            }

            HudIcons.Apply(_speciesIcon, species);
        }

        bool hasSex = false;
        if (_sexIcon != null)
        {
            Sprite sexSprite = null;
            if (dossier != null)
            {
                if (dossier.IsMale)
                {
                    sexSprite = HudIcons.SexMale();
                }
                else if (dossier.IsFemale)
                {
                    sexSprite = HudIcons.SexFemale();
                }
            }

            HudIcons.Apply(_sexIcon, sexSprite);
            hasSex = sexSprite != null;
            _sexIcon.gameObject.SetActive(hasSex);
        }

        if (_nameText != null)
        {
            _nameText.text = dossier != null && !string.IsNullOrEmpty(dossier.Headline)
                ? dossier.Headline
                : "";
        }

        bool hasBody = dossier != null && dossier.UnitId != 0;
        DossierAvatar.SetActive(hasBody);

        // Live units always show level; archive snapshots hide a blank 0.
        bool hasLevel = hasBody && (hasLive || dossier.Level > 0);
        if (_levelIcon != null)
        {
            HudIcons.Apply(_levelIcon, hasLevel ? HudIcons.Level() : null);
            _levelIcon.gameObject.SetActive(hasLevel);
        }

        if (_levelValue != null)
        {
            _levelValue.text = hasLevel ? dossier.Level.ToString() : "";
            _levelValue.gameObject.SetActive(hasLevel);
        }

        if (hasLive)
        {
            DossierAvatar.Show(actor);
            ActivityLog.EnsureCurrentTask(actor);
        }
        else if (hasBody)
        {
            DossierAvatar.ShowSpecies(dossier.SpeciesId);
        }
        else
        {
            DossierAvatar.ClearActor();
        }

        bool hasTask = dossier != null && !string.IsNullOrEmpty(dossier.TaskText);
        if (_taskIcon != null)
        {
            HudIcons.Apply(_taskIcon, hasTask ? HudIcons.Task() : null);
            _taskIcon.gameObject.SetActive(hasTask);
        }

        if (_taskText != null)
        {
            string task = hasTask ? dossier.TaskText : "";
            if (task.Length > 14)
            {
                task = task.Substring(0, 13) + "...";
            }

            _taskText.text = task;
            _taskText.gameObject.SetActive(hasTask);
        }

        int traitCount = 0;
        LastTraitsPreview = "";
        if (_traitsRow != null)
        {
            if (dossier != null && dossier.TopTraits.Count > 0)
            {
                _traitsRow.SetActive(true);
                System.Text.StringBuilder traitPreview = new System.Text.StringBuilder();
                for (int i = 0; i < _traitSlots.Length; i++)
                {
                    TraitSlot slot = _traitSlots[i];
                    if (slot == null || slot.Root == null)
                    {
                        continue;
                    }

                    if (i < dossier.TopTraits.Count)
                    {
                        UnitDossier.TraitChip chip = dossier.TopTraits[i];
                        slot.Root.SetActive(true);
                        Sprite traitSprite = chip != null ? HudIcons.FromTrait(chip.Trait) : null;
                        if (traitSprite == null && chip != null && !string.IsNullOrEmpty(chip.Id))
                        {
                            traitSprite = HudIcons.FromUiIcon(chip.Id) ?? HudIcons.FromUiIcon("icon" + chip.Id);
                        }

                        HudIcons.Apply(slot.Icon, traitSprite);
                        string name = chip.Name ?? "";
                        if (slot.Label != null)
                        {
                            slot.Label.text = name;
                        }

                        if (traitPreview.Length > 0)
                        {
                            traitPreview.Append(", ");
                        }

                        traitPreview.Append(name);
                        traitCount++;
                    }
                    else
                    {
                        slot.Root.SetActive(false);
                    }
                }

                LastTraitsPreview = traitPreview.ToString();
            }
            else
            {
                _traitsRow.SetActive(false);
            }
        }

        int historyCount = 0;
        if (dossier != null)
        {
            historyCount = FillHistory(dossier.UnitId);
        }
        else
        {
            LastHistoryPreview = "";
            LastHistoryJoined = "";
            LastHistoryShown = 0;
            LastActivityShown = 0;
            LastLifeShown = 0;
            LastHistoryFillsBody = false;
            if (_historyCol != null)
            {
                _historyCol.SetActive(false);
            }
        }

        bool hasReason = dossier != null && !string.IsNullOrEmpty(dossier.ReasonLine);
        if (_reasonText != null)
        {
            _reasonText.text = hasReason ? dossier.ReasonLine : "";
            _reasonText.gameObject.SetActive(hasReason);
        }

        Relayout(hasBody, traitCount, hasTask, hasReason, historyCount);
        RefreshFavoriteVisual(hasLive ? actor : null);
    }

    private static int FillHistory(long unitId)
    {
        // Activity first (prominent), then Chronicle Life fills remaining peek slots.
        // Always reserve one Life slot when the subject has chronicle history so Life
        // does not vanish under a busy activity ring (and chronicle smoke stays valid).
        int chronicleCount = Chronicle.HistoryCountFor(unitId);
        int actCap = chronicleCount > 0 ? HistoryPeekMax - 1 : HistoryPeekMax;
        IReadOnlyList<ActivityEntry> activity =
            ActivityLog.LatestForSubject(unitId, actCap);
        int lifeNeed = Mathf.Max(0, HistoryPeekMax - (activity?.Count ?? 0));

        IReadOnlyList<ChronicleEntry> life =
            lifeNeed > 0
                ? Chronicle.LatestForSubject(unitId, lifeNeed)
                : System.Array.Empty<ChronicleEntry>();

        _lastHistorySubjectId = unitId;
        _lastHistoryCount = ActivityLog.CountFor(unitId) + chronicleCount;

        LastHistoryPreview = "";
        LastHistoryJoined = "";
        LastHistoryShown = 0;
        LastActivityShown = 0;
        LastLifeShown = 0;
        _historyColW = HistoryColMinW;
        for (int i = 0; i < _historySlotHeights.Length; i++)
        {
            _historySlotHeights[i] = HistoryLineMinH;
        }

        if (_historyCol == null)
        {
            return 0;
        }

        int total = (activity?.Count ?? 0) + (life?.Count ?? 0);
        if (total == 0)
        {
            // Soft fallback: show current task as a single activity line when the ring is empty.
            string taskFallback = "";
            try
            {
                Actor live = MoveCamera.hasFocusUnit() ? MoveCamera._focus_unit : null;
                if (live != null && live.isAlive() && live.getID() == unitId && live.hasTask()
                    && live.ai?.task != null)
                {
                    taskFallback = live.ai.task.getLocalizedText() ?? "";
                }
            }
            catch
            {
                taskFallback = "";
            }

            if (string.IsNullOrEmpty(taskFallback))
            {
                for (int i = 0; i < _historySlots.Length; i++)
                {
                    HistorySlot slot = _historySlots[i];
                    if (slot?.Root != null)
                    {
                        slot.Root.SetActive(false);
                    }

                    if (slot?.Label != null)
                    {
                        slot.Label.text = "";
                    }

                    _historySlotHeights[i] = 0f;
                }

                _historyCol.SetActive(false);
                LastHistoryShown = 0;
                LastActivityShown = 0;
                LastLifeShown = 0;
                LastHistoryFillsBody = false;
                LastHistoryPreview = "";
                LastHistoryJoined = "";
                return 0;
            }

            activity = new[]
            {
                new ActivityEntry
                {
                    DisplayLine = taskFallback,
                    Line = taskFallback,
                    Kind = ActivityKind.TaskStart
                }
            };
            total = 1;
        }

        _historyCol.SetActive(true);

        var lines = new List<(string rich, string plain, bool isActivity, ChronicleKind? kind)>(HistoryPeekMax);
        if (activity != null)
        {
            for (int i = 0; i < activity.Count && lines.Count < HistoryPeekMax; i++)
            {
                ActivityEntry e = activity[i];
                if (e == null)
                {
                    continue;
                }

                string plain = !string.IsNullOrEmpty(e.DisplayLine) ? e.DisplayLine : e.Line;
                if (string.IsNullOrEmpty(plain))
                {
                    continue;
                }

                string rich = !string.IsNullOrEmpty(e.DisplayLineRich) ? e.DisplayLineRich : plain;
                lines.Add((rich, plain, true, null));
            }
        }

        if (life != null)
        {
            for (int i = 0; i < life.Count && lines.Count < HistoryPeekMax; i++)
            {
                ChronicleEntry e = life[i];
                if (e == null)
                {
                    continue;
                }

                string plain = e.DisplayLine ?? e.HudLine ?? "";
                string rich = e.DisplayLineRich ?? plain;
                if (string.IsNullOrEmpty(plain) && string.IsNullOrEmpty(rich))
                {
                    continue;
                }

                lines.Add((rich, plain, false, e.Kind));
            }
        }

        float widestLabel = 0f;
        for (int i = 0; i < lines.Count && i < _historySlots.Length; i++)
        {
            HistorySlot slot = _historySlots[i];
            if (slot?.Label == null)
            {
                continue;
            }

            Text label = slot.Label;
            label.supportRichText = true;
            label.resizeTextForBestFit = false;
            label.horizontalOverflow = HorizontalWrapMode.Overflow;
            label.verticalOverflow = VerticalWrapMode.Overflow;
            label.alignment = TextAnchor.UpperLeft;
            label.text = lines[i].plain;
            Canvas.ForceUpdateCanvases();
            try
            {
                widestLabel = Mathf.Max(widestLabel, label.preferredWidth);
            }
            catch
            {
                widestLabel = Mathf.Max(widestLabel, lines[i].plain.Length * 6.2f);
            }
        }

        _historyColW = Mathf.Clamp(
            widestLabel + HistoryIcon + 4f,
            HistoryColMinW,
            HistoryColMaxW);
        ApplyCombinedSlotContents(lines, _historyColW);
        LastHistoryShown = CountActiveHistorySlots();
        return LastHistoryShown;
    }

    private static void ApplyCombinedSlotContents(
        List<(string rich, string plain, bool isActivity, ChronicleKind? kind)> lines,
        float colW)
    {
        float labelW = Mathf.Max(24f, colW - HistoryIcon - 2f);
        LastHistoryPreview = "";
        LastHistoryJoined = "";
        LastActivityShown = 0;
        LastLifeShown = 0;
        var joined = new List<string>(HistoryPeekMax);

        for (int i = 0; i < _historySlots.Length; i++)
        {
            HistorySlot slot = _historySlots[i];
            if (slot?.Root == null)
            {
                continue;
            }

            if (i >= lines.Count)
            {
                slot.Root.SetActive(false);
                _historySlotHeights[i] = 0f;
                _historySlotIsActivity[i] = false;
                continue;
            }

            var row = lines[i];
            _historySlotIsActivity[i] = row.isActivity;
            slot.Root.SetActive(true);
            Sprite icon = row.isActivity
                ? (HudIcons.FromUiIcon("iconClock")
                   ?? HudIcons.FromUiIcon("iconTask")
                   ?? HudIcons.ForChronicleKind(ChronicleKind.Other))
                : HudIcons.ForChronicleKind(row.kind ?? ChronicleKind.Other);
            HudIcons.Apply(slot.Icon, icon);

            if (slot.Label != null)
            {
                slot.Label.supportRichText = true;
                slot.Label.horizontalOverflow = HorizontalWrapMode.Wrap;
                slot.Label.verticalOverflow = VerticalWrapMode.Overflow;
                slot.Label.color = row.isActivity
                    ? new Color(0.88f, 0.9f, 0.78f, 1f)
                    : HistoryTextColor;
                slot.Label.text = row.rich ?? row.plain ?? "";
                RectTransform lrt = slot.Label.GetComponent<RectTransform>();
                lrt.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, labelW);
                Canvas.ForceUpdateCanvases();
                float needed = HistoryLineMinH;
                try
                {
                    needed = Mathf.Max(HistoryLineMinH, slot.Label.preferredHeight + 4f);
                }
                catch
                {
                    int chars = (row.plain ?? "").Length;
                    int perLine = Mathf.Max(12, (int)(labelW / 6.2f));
                    int wrapLines = Mathf.Max(1, (chars + perLine - 1) / perLine);
                    needed = HistoryLineMinH * wrapLines;
                }

                _historySlotHeights[i] = Mathf.Clamp(needed, HistoryLineMinH, HistoryLineMaxH);
            }
            else
            {
                _historySlotHeights[i] = HistoryLineMinH;
            }

            if (row.isActivity)
            {
                LastActivityShown++;
            }
            else
            {
                LastLifeShown++;
            }

            string plain = (row.plain ?? "").Replace("\n", " ");
            joined.Add(plain);
            if (string.IsNullOrEmpty(LastHistoryPreview))
            {
                LastHistoryPreview = plain;
            }
        }

        LastHistoryJoined = string.Join(" | ", joined);
    }

    private static void RemeasureHistoryForWidth(float colW)
    {
        _historyColW = Mathf.Clamp(colW, HistoryColMinW, HistoryColMaxW);
        float labelW = Mathf.Max(24f, _historyColW - HistoryIcon - 2f);
        for (int i = 0; i < _historySlots.Length; i++)
        {
            HistorySlot slot = _historySlots[i];
            if (slot?.Root == null || !slot.Root.activeSelf || slot.Label == null)
            {
                continue;
            }

            RectTransform lrt = slot.Label.GetComponent<RectTransform>();
            lrt.SetSizeWithCurrentAnchors(RectTransform.Axis.Horizontal, labelW);
            Canvas.ForceUpdateCanvases();
            float needed = HistoryLineMinH;
            try
            {
                needed = Mathf.Max(HistoryLineMinH, slot.Label.preferredHeight + 4f);
            }
            catch
            {
                needed = _historySlotHeights[i] > 0.01f ? _historySlotHeights[i] : HistoryLineMinH;
            }

            _historySlotHeights[i] = Mathf.Clamp(needed, HistoryLineMinH, HistoryLineMaxH);
        }
    }

    private static float MeasureHistoryContentHeight(int historyCount)
    {
        if (historyCount <= 0)
        {
            return BodyH;
        }

        float total = 0f;
        int used = 0;
        bool hasAct = false;
        bool hasLife = false;
        for (int i = 0; i < _historySlotHeights.Length && used < historyCount; i++)
        {
            if (_historySlotHeights[i] <= 0.01f)
            {
                continue;
            }

            total += _historySlotHeights[i];
            if (_historySlotIsActivity[i])
            {
                hasAct = true;
            }
            else
            {
                hasLife = true;
            }

            used++;
        }

        if (hasAct && hasLife)
        {
            total += LifeSepH;
        }

        return Mathf.Max(BodyH, total);
    }

    private static float MeasureHistoryColumnHeight(int historyCount)
    {
        return MeasureHistoryContentHeight(historyCount);
    }

    private static void Relayout(bool hasBody, int traitCount, bool hasTask, bool hasReason, int historyCount)
    {
        float headerW = MeasureHeaderWidth(hasTask);
        float traitsW = 0f;
        bool traitsBeside = hasBody && historyCount <= 0 && traitCount > 0;
        if (traitCount > 0 && !traitsBeside)
        {
            // Traits row spans panel; width contribution is handled after panel size.
            traitsW = HistoryColMinW;
        }
        else if (traitsBeside)
        {
            traitsW = HistoryColMinW;
        }

        float bodyW = 0f;
        if (hasBody)
        {
            if (historyCount > 0)
            {
                bodyW = LiveMax + 4f + _historyColW;
            }
            else if (traitsBeside)
            {
                bodyW = LiveMax + 4f + traitsW;
            }
            else
            {
                bodyW = LiveMax;
            }
        }

        _panelWidth = Mathf.Clamp(
            PadX * 2f + Mathf.Max(headerW, bodyW, traitsW, LiveMax),
            LiveMax + PadX * 2f,
            PanelWidthMax);

        LastHistoryFillsBody = historyCount <= 0;
        if (historyCount > 0)
        {
            float fillW = _panelWidth - PadX * 2f - LiveMax - 4f;
            if (fillW > _historyColW + 0.5f)
            {
                RemeasureHistoryForWidth(fillW);
            }
            else
            {
                _historyColW = Mathf.Min(_historyColW, fillW);
            }

            LastHistoryFillsBody = _historyColW >= fillW - 1f;
        }

        float y = PadTop;
        PlaceHeader(y, hasTask);
        y += HeaderH + Gap;

        if (hasBody)
        {
            float bodyH = historyCount > 0 ? MeasureHistoryColumnHeight(historyCount) : BodyH;
            PlaceBody(y, historyCount, bodyH);
            if (historyCount > 0)
            {
                y += bodyH + Gap;
            }
            else if (traitsBeside)
            {
                PlaceTraitsBesideAvatar(y, traitCount);
                y += BodyH + Gap;
            }
            else
            {
                y += BodyH + Gap;
            }
        }

        if (traitCount > 0 && !traitsBeside)
        {
            PlaceTraits(y, traitCount);
            y += TraitsH + Gap;
        }

        if (hasReason)
        {
            PlaceLine(_reasonText != null ? _reasonText.GetComponent<RectTransform>() : null, y, ReasonH, PadX);
            y += ReasonH + Gap;
        }

        float height = Mathf.Max(HeaderH + PadTop * 2f, y + PadTop - Gap);
        if (_rootRt != null)
        {
            ApplyRootPlacement();
            _rootRt.sizeDelta = new Vector2(_panelWidth, height);
            LastPanelSize = _rootRt.sizeDelta;
        }

        BringHeaderFront();

        LastLayoutOk = ProbeLayoutInside(height)
                       && headerW > SpeciesSize
                       && (historyCount <= 0 || LastHistoryFillsBody);
        if (!LastLayoutOk)
        {
            LogService.LogInfo(
                $"[IdleSpectator][CAPTION][LAYOUT_BAD] size={LastPanelSize} body={hasBody} traits={traitCount} hist={historyCount} headerW={headerW} histFill={LastHistoryFillsBody} histW={_historyColW}");
        }
    }

    /// <summary>Left-pack nametag on the root: [species] Name [lv]n [task] [sex].</summary>
    private static float PlaceHeader(float yFromTop, bool hasTask)
    {
        float x = PadX;

        if (_speciesIcon != null)
        {
            PlaceLeftChip(_speciesIcon.rectTransform, x, yFromTop + 1f, SpeciesSize, SpeciesSize);
            x += SpeciesSize + 3f;
        }

        if (_nameText != null)
        {
            float nameW = Mathf.Clamp(MeasureTextWidth(_nameText, 72f), 28f, 120f);
            PlaceLeftChip(_nameText.rectTransform, x, yFromTop, nameW, HeaderH);
            x += nameW + 5f;
        }

        if (_levelIcon != null && _levelIcon.gameObject.activeSelf)
        {
            PlaceLeftChip(_levelIcon.rectTransform, x, yFromTop + 3f, ChipIcon, ChipIcon);
            x += ChipIcon + 1f;
        }

        if (_levelValue != null && _levelValue.gameObject.activeSelf)
        {
            float lvW = Mathf.Clamp(MeasureTextWidth(_levelValue, 10f), 8f, 24f);
            PlaceLeftChip(_levelValue.rectTransform, x, yFromTop, lvW, HeaderH);
            x += lvW + 4f;
        }

        if (hasTask && _taskIcon != null && _taskText != null)
        {
            _taskIcon.gameObject.SetActive(true);
            _taskText.gameObject.SetActive(true);
            PlaceLeftChip(_taskIcon.rectTransform, x, yFromTop + 3f, ChipIcon, ChipIcon);
            x += ChipIcon + 1f;
            float taskW = Mathf.Clamp(MeasureTextWidth(_taskText, 36f), 20f, 72f);
            PlaceLeftChip(_taskText.rectTransform, x, yFromTop, taskW, HeaderH);
            x += taskW + 4f;
        }
        else
        {
            if (_taskText != null)
            {
                _taskText.gameObject.SetActive(false);
            }

            if (_taskIcon != null)
            {
                _taskIcon.gameObject.SetActive(false);
            }
        }

        if (_sexIcon != null && _sexIcon.gameObject.activeSelf)
        {
            PlaceLeftChip(_sexIcon.rectTransform, x, yFromTop + 2f, SexSize, SexSize);
            x += SexSize;
        }

        x += 6f;
        PlaceHeaderButton(_favoriteBtn, x, yFromTop);
        x += BtnSize + 2f;
        PlaceHeaderButton(_historyBtn, x, yFromTop);
        x += BtnSize;

        RefreshFavoriteVisual(_boundActor);

        BringHeaderFront();
        return Mathf.Max(0f, x - PadX);
    }

    private static float MeasureHeaderWidth(bool hasTask)
    {
        float x = PadX + SpeciesSize + 3f;
        if (_nameText != null)
        {
            x += Mathf.Clamp(MeasureTextWidth(_nameText, 72f), 28f, 120f) + 5f;
        }

        if (_levelIcon != null && _levelIcon.gameObject.activeSelf)
        {
            x += ChipIcon + 1f;
        }

        if (_levelValue != null && _levelValue.gameObject.activeSelf)
        {
            x += Mathf.Clamp(MeasureTextWidth(_levelValue, 10f), 8f, 24f) + 4f;
        }

        if (hasTask && _taskIcon != null && _taskText != null)
        {
            x += ChipIcon + 1f;
            x += Mathf.Clamp(MeasureTextWidth(_taskText, 36f), 20f, 72f) + 4f;
        }

        if (_sexIcon != null && _sexIcon.gameObject.activeSelf)
        {
            x += SexSize;
        }

        x += 6f + BtnSize + 2f + BtnSize;
        return Mathf.Max(0f, x - PadX);
    }

    private static void PlaceHeaderButton(Button button, float x, float yFromTop)
    {
        if (button == null)
        {
            return;
        }

        button.gameObject.SetActive(true);
        PlaceLeftChip(button.GetComponent<RectTransform>(), x, yFromTop + 1f, BtnSize, BtnSize);
    }

    private static void RefreshFavoriteVisual(Actor actor)
    {
        if (_favoriteIcon == null)
        {
            return;
        }

        bool fav = false;
        try
        {
            if (actor != null && actor.isAlive() && actor.isFavorite())
            {
                fav = true;
            }
        }
        catch
        {
            fav = false;
        }

        if (!fav)
        {
            long id = _current != null ? _current.UnitId : 0;
            if (id == 0 && actor != null)
            {
                try
                {
                    id = actor.getID();
                }
                catch
                {
                    id = 0;
                }
            }

            fav = Chronicle.IsFavoriteSubject(id) || (_current != null && _current.IsFavorite);
        }

        HudIcons.Apply(_favoriteIcon, HudIcons.Favorite());
        _favoriteIcon.color = fav
            ? new Color(1f, 0.85f, 0.25f, 1f)
            : new Color(0.55f, 0.58f, 0.62f, 1f);
    }

    private static void PlaceLeftChip(RectTransform rt, float x, float yFromTop, float width, float height)
    {
        if (rt == null)
        {
            return;
        }

        rt.anchorMin = new Vector2(0f, 1f);
        rt.anchorMax = new Vector2(0f, 1f);
        rt.pivot = new Vector2(0f, 1f);
        rt.anchoredPosition = new Vector2(x, -yFromTop);
        rt.sizeDelta = new Vector2(width, height);
    }

    private static float MeasureTextWidth(Text text, float fallback)
    {
        if (text == null || string.IsNullOrEmpty(text.text))
        {
            return fallback;
        }

        try
        {
            float w = text.preferredWidth;
            if (w > 1f)
            {
                return w + 2f;
            }
        }
        catch
        {
            // fall through
        }

        return fallback;
    }

    private static void PlaceBody(float yFromTop, int historyCount, float bodyH)
    {
        DossierAvatar.Place(PadX, yFromTop, LiveMax);

        if (_historyCol == null)
        {
            return;
        }

        if (historyCount <= 0)
        {
            _historyCol.SetActive(false);
            if (_activityBoxBg != null)
            {
                _activityBoxBg.gameObject.SetActive(false);
            }

            if (_lifeSep != null)
            {
                _lifeSep.gameObject.SetActive(false);
            }

            return;
        }

        _historyCol.SetActive(true);
        RectTransform col = _historyCol.GetComponent<RectTransform>();
        col.anchorMin = new Vector2(0f, 1f);
        col.anchorMax = new Vector2(0f, 1f);
        col.pivot = new Vector2(0f, 1f);
        col.anchoredPosition = new Vector2(PadX + LiveMax + 4f, -yFromTop);
        col.sizeDelta = new Vector2(_historyColW, bodyH);

        float top = 0f;
        float activityTop = -1f;
        float activityBottom = 0f;
        bool sawLife = false;
        bool placedSep = false;

        for (int i = 0; i < _historySlots.Length; i++)
        {
            HistorySlot slot = _historySlots[i];
            if (slot == null || slot.Root == null || !slot.Root.activeSelf)
            {
                continue;
            }

            bool isAct = _historySlotIsActivity[i];
            if (!isAct && !placedSep && activityTop >= 0f)
            {
                // Thin rule between Activity box and Life.
                if (_lifeSep != null)
                {
                    _lifeSep.gameObject.SetActive(true);
                    _lifeSep.SetParent(_historyCol.transform, false);
                    _lifeSep.anchorMin = new Vector2(0f, 1f);
                    _lifeSep.anchorMax = new Vector2(1f, 1f);
                    _lifeSep.pivot = new Vector2(0.5f, 1f);
                    _lifeSep.offsetMin = new Vector2(2f, -(top + LifeSepH));
                    _lifeSep.offsetMax = new Vector2(-2f, -top);
                }

                top += LifeSepH;
                placedSep = true;
            }

            if (!isAct)
            {
                sawLife = true;
            }

            float lineH = _historySlotHeights[i] > 0.01f ? _historySlotHeights[i] : HistoryLineMinH;
            if (isAct)
            {
                if (activityTop < 0f)
                {
                    activityTop = top;
                }

                activityBottom = top + lineH;
            }

            RectTransform rt = slot.Root.GetComponent<RectTransform>();
            rt.anchorMin = new Vector2(0f, 1f);
            rt.anchorMax = new Vector2(1f, 1f);
            rt.pivot = new Vector2(0.5f, 1f);
            rt.offsetMin = new Vector2(0f, -(top + lineH));
            rt.offsetMax = new Vector2(0f, -top);
            top += lineH;

            if (slot.Icon != null)
            {
                RectTransform irt = slot.Icon.GetComponent<RectTransform>();
                irt.anchorMin = new Vector2(0f, 1f);
                irt.anchorMax = new Vector2(0f, 1f);
                irt.pivot = new Vector2(0f, 1f);
                irt.anchoredPosition = new Vector2(0f, -1f);
                irt.sizeDelta = new Vector2(HistoryIcon, HistoryIcon);
            }

            if (slot.Label != null)
            {
                RectTransform lrt = slot.Label.GetComponent<RectTransform>();
                lrt.anchorMin = new Vector2(0f, 0f);
                lrt.anchorMax = new Vector2(1f, 1f);
                lrt.offsetMin = new Vector2(HistoryIcon + 2f, 0f);
                lrt.offsetMax = new Vector2(0f, -1f);
            }
        }

        if (_lifeSep != null && (!sawLife || activityTop < 0f))
        {
            _lifeSep.gameObject.SetActive(false);
        }

        if (_activityBoxBg != null)
        {
            if (activityTop >= 0f && activityBottom > activityTop)
            {
                _activityBoxBg.gameObject.SetActive(true);
                RectTransform box = _activityBoxBg.rectTransform;
                box.SetParent(_historyCol.transform, false);
                box.SetAsFirstSibling();
                box.anchorMin = new Vector2(0f, 1f);
                box.anchorMax = new Vector2(1f, 1f);
                box.pivot = new Vector2(0.5f, 1f);
                box.offsetMin = new Vector2(0f, -activityBottom);
                box.offsetMax = new Vector2(0f, -activityTop);
            }
            else
            {
                _activityBoxBg.gameObject.SetActive(false);
            }
        }
    }

    private static float PlaceTraits(float yFromTop, int traitCount)
    {
        if (_traitsRow == null)
        {
            return 0f;
        }

        RectTransform row = _traitsRow.GetComponent<RectTransform>();
        row.anchorMin = new Vector2(0f, 1f);
        row.anchorMax = new Vector2(1f, 1f);
        row.pivot = new Vector2(0.5f, 1f);
        row.offsetMin = new Vector2(PadX, -(yFromTop + TraitsH));
        row.offsetMax = new Vector2(-PadX, -yFromTop);

        float x = 0f;
        for (int i = 0; i < _traitSlots.Length; i++)
        {
            TraitSlot slot = _traitSlots[i];
            if (slot == null || slot.Root == null || !slot.Root.activeSelf)
            {
                continue;
            }

            float labelW = slot.Label != null
                ? Mathf.Max(MeasureTextWidth(slot.Label, 28f), 18f)
                : 28f;
            float slotW = TraitIcon + 2f + labelW;
            PlaceTraitSlot(slot, x, 0f, slotW, TraitsH);
            x += slotW + 3f;
        }

        return x > 0f ? x - 3f : 0f;
    }

    /// <summary>Vertical trait stack in the body-right slot when History is empty.</summary>
    private static float PlaceTraitsBesideAvatar(float yFromTop, int traitCount)
    {
        if (_traitsRow == null)
        {
            return 0f;
        }

        float colW = 0f;
        for (int i = 0; i < _traitSlots.Length; i++)
        {
            TraitSlot slot = _traitSlots[i];
            if (slot == null || slot.Root == null || !slot.Root.activeSelf || slot.Label == null)
            {
                continue;
            }

            float labelW = Mathf.Max(MeasureTextWidth(slot.Label, 36f), 24f);
            colW = Mathf.Max(colW, TraitIcon + 2f + labelW);
        }

        if (colW < 1f)
        {
            colW = 56f;
        }

        RectTransform row = _traitsRow.GetComponent<RectTransform>();
        row.anchorMin = new Vector2(0f, 1f);
        row.anchorMax = new Vector2(0f, 1f);
        row.pivot = new Vector2(0f, 1f);
        row.anchoredPosition = new Vector2(PadX + LiveMax + 4f, -yFromTop);
        row.sizeDelta = new Vector2(colW, BodyH);

        float line = Mathf.Min(HistoryLineMinH, BodyH / Mathf.Max(1, traitCount));
        int shown = 0;
        for (int i = 0; i < _traitSlots.Length; i++)
        {
            TraitSlot slot = _traitSlots[i];
            if (slot == null || slot.Root == null || !slot.Root.activeSelf)
            {
                continue;
            }

            PlaceTraitSlot(slot, 0f, -(shown * line), colW, line);
            shown++;
        }

        return colW;
    }

    private static void PlaceTraitSlot(TraitSlot slot, float x, float y, float slotW, float slotH)
    {
        RectTransform rt = slot.Root.GetComponent<RectTransform>();
        rt.anchorMin = new Vector2(0f, 1f);
        rt.anchorMax = new Vector2(0f, 1f);
        rt.pivot = new Vector2(0f, 1f);
        rt.anchoredPosition = new Vector2(x, y);
        rt.sizeDelta = new Vector2(slotW, slotH);

        if (slot.Icon != null)
        {
            RectTransform irt = slot.Icon.GetComponent<RectTransform>();
            irt.anchorMin = new Vector2(0f, 0.5f);
            irt.anchorMax = new Vector2(0f, 0.5f);
            irt.pivot = new Vector2(0f, 0.5f);
            irt.anchoredPosition = Vector2.zero;
            irt.sizeDelta = new Vector2(TraitIcon, TraitIcon);
        }

        if (slot.Label != null)
        {
            RectTransform lrt = slot.Label.GetComponent<RectTransform>();
            lrt.anchorMin = new Vector2(0f, 0f);
            lrt.anchorMax = new Vector2(1f, 1f);
            lrt.offsetMin = new Vector2(TraitIcon + 2f, 0f);
            lrt.offsetMax = Vector2.zero;
        }
    }

    private static bool ProbeLayoutInside(float panelHeight)
    {
        if (_nameText == null)
        {
            return false;
        }

        return LineInside(_nameText.GetComponent<RectTransform>(), panelHeight)
               && (_reasonText == null || !_reasonText.gameObject.activeSelf
                   || LineInside(_reasonText.GetComponent<RectTransform>(), panelHeight))
               && (_traitsRow == null || !_traitsRow.activeSelf
                   || LineInside(_traitsRow.GetComponent<RectTransform>(), panelHeight))
               && (_historyCol == null || !_historyCol.activeSelf
                   || LineInside(_historyCol.GetComponent<RectTransform>(), panelHeight));
    }

    private static bool LineInside(RectTransform line, float panelHeight)
    {
        if (line == null)
        {
            return true;
        }

        float top = -line.offsetMax.y;
        float bottom = -line.offsetMin.y;
        if (Mathf.Approximately(line.offsetMin.y, 0f) && Mathf.Approximately(line.offsetMax.y, 0f)
            && line.anchorMin.y == line.anchorMax.y)
        {
            float y = -line.anchoredPosition.y;
            float h = line.sizeDelta.y > 0.1f ? line.sizeDelta.y : TraitsH;
            return y >= 0f && y + h <= panelHeight + 0.5f;
        }

        if (line.anchorMin.y == line.anchorMax.y && line.anchorMin.x == line.anchorMax.x)
        {
            float y = -line.anchoredPosition.y;
            float h = line.sizeDelta.y > 0.1f ? line.sizeDelta.y : HeaderH;
            return y >= 0f && y + h <= panelHeight + 0.5f;
        }

        return top >= 0f && bottom <= panelHeight + 0.5f && top < bottom;
    }

    private static void SetVisible(bool visible)
    {
        EnsureBuilt();
        if (_root == null)
        {
            return;
        }

        _visible = visible;
        _root.SetActive(visible);
    }

    private static void EnsureBuilt()
    {
        if (_root != null && (_nameText == null || _nameText.transform.parent != _root.transform
                              || _historyCol == null
                              || _historyBtn == null
                              || _root.transform.Find("HistoryScroll") != null))
        {
            // Stale HUD from an older build (nested nametag row / non-scroll history) - rebuild.
            try
            {
                Object.Destroy(_root);
            }
            catch
            {
                // ignore
            }

            _root = null;
            _rootRt = null;
            _speciesIcon = null;
            _sexIcon = null;
            _nameText = null;
            _reasonText = null;
            _levelIcon = null;
            _levelValue = null;
            _taskIcon = null;
            _taskText = null;
            _traitsRow = null;
            _historyCol = null;
            _activityBoxBg = null;
            _lifeSep = null;
            _favoriteBtn = null;
            _favoriteIcon = null;
            _historyBtn = null;
            _historyIcon = null;
            DossierAvatar.ResetHost();
        }

        if (_root != null)
        {
            return;
        }

        Canvas canvas = HudCanvas.Resolve();
        if (canvas == null)
        {
            return;
        }

        _root = new GameObject("IdleSpectatorDossierHud", typeof(RectTransform), typeof(Image), typeof(CanvasGroup));
        _root.transform.SetParent(canvas.transform, false);

        _rootRt = _root.GetComponent<RectTransform>();
        ApplyRootPlacement();
        _rootRt.sizeDelta = new Vector2(LiveMax + PadX * 2f, HeaderH + PadTop * 2f);

        Image bg = _root.GetComponent<Image>();
        bg.raycastTarget = false;
        HudCanvas.StylePanel(bg, _root.transform, new Color(0.07f, 0.08f, 0.1f, 0.9f));

        CanvasGroup group = _root.GetComponent<CanvasGroup>();
        // Buttons need raycasts; panel chrome still ignores hits via raycastTarget=false on bg/text.
        group.blocksRaycasts = true;
        group.interactable = true;

        // Avatar/history/traits first so nametag chips can SetAsLastSibling on top.
        DossierAvatar.EnsureHost(_root.transform, LiveMax);

        _historyCol = new GameObject("HistoryCol", typeof(RectTransform));
        _historyCol.transform.SetParent(_root.transform, false);

        GameObject boxGo = new GameObject("ActivityBox", typeof(RectTransform), typeof(Image));
        boxGo.transform.SetParent(_historyCol.transform, false);
        _activityBoxBg = boxGo.GetComponent<Image>();
        _activityBoxBg.color = new Color(0.14f, 0.16f, 0.14f, 0.55f);
        _activityBoxBg.raycastTarget = false;
        boxGo.SetActive(false);

        GameObject sepGo = new GameObject("LifeSep", typeof(RectTransform), typeof(Image));
        sepGo.transform.SetParent(_historyCol.transform, false);
        _lifeSep = sepGo.GetComponent<RectTransform>();
        Image sepImg = sepGo.GetComponent<Image>();
        sepImg.color = new Color(0.55f, 0.58f, 0.62f, 0.55f);
        sepImg.raycastTarget = false;
        sepGo.SetActive(false);

        for (int i = 0; i < _historySlots.Length; i++)
        {
            GameObject slotGo = new GameObject("Hist" + i, typeof(RectTransform));
            slotGo.transform.SetParent(_historyCol.transform, false);
            Image icon = HudCanvas.MakeIcon(slotGo.transform, "Icon", HistoryIcon);
            Text label = HudCanvas.MakeText(slotGo.transform, "Label", "", 8);
            label.color = HistoryTextColor;
            label.alignment = TextAnchor.MiddleLeft;
            label.horizontalOverflow = HorizontalWrapMode.Overflow;
            label.supportRichText = true;
            label.resizeTextMinSize = 6;
            label.resizeTextMaxSize = 8;
            _historySlots[i] = new HistorySlot { Root = slotGo, Icon = icon, Label = label };
            slotGo.SetActive(false);
        }

        _traitsRow = new GameObject("TraitsRow", typeof(RectTransform));
        _traitsRow.transform.SetParent(_root.transform, false);
        for (int i = 0; i < _traitSlots.Length; i++)
        {
            GameObject slotGo = new GameObject("Trait" + i, typeof(RectTransform));
            slotGo.transform.SetParent(_traitsRow.transform, false);
            Image icon = HudCanvas.MakeIcon(slotGo.transform, "Icon", TraitIcon);
            Text label = HudCanvas.MakeText(slotGo.transform, "Label", "", 8);
            label.color = TraitNameColor;
            label.alignment = TextAnchor.MiddleLeft;
            label.horizontalOverflow = HorizontalWrapMode.Overflow;
            label.resizeTextMinSize = 6;
            label.resizeTextMaxSize = 8;
            _traitSlots[i] = new TraitSlot { Root = slotGo, Icon = icon, Label = label };
            slotGo.SetActive(false);
        }

        _reasonText = HudCanvas.MakeText(_root.transform, "Reason", "", 8);
        _reasonText.color = ReasonColor;
        _reasonText.alignment = TextAnchor.MiddleLeft;

        _speciesIcon = HudCanvas.MakeIcon(_root.transform, "SpeciesIcon", SpeciesSize);
        _sexIcon = HudCanvas.MakeIcon(_root.transform, "SexIcon", SexSize);

        _nameText = HudCanvas.MakeText(_root.transform, "Name", "", 11);
        _nameText.fontStyle = FontStyle.Bold;
        _nameText.color = NameColor;
        _nameText.alignment = TextAnchor.MiddleLeft;
        _nameText.horizontalOverflow = HorizontalWrapMode.Overflow;

        _levelIcon = HudCanvas.MakeIcon(_root.transform, "LevelIcon", ChipIcon);
        _levelValue = HudCanvas.MakeText(_root.transform, "LevelValue", "", 9);
        _levelValue.color = StatValueColor;
        _levelValue.fontStyle = FontStyle.Bold;
        _levelValue.alignment = TextAnchor.MiddleLeft;
        _levelValue.horizontalOverflow = HorizontalWrapMode.Overflow;

        _taskIcon = HudCanvas.MakeIcon(_root.transform, "TaskIcon", ChipIcon);
        _taskText = HudCanvas.MakeText(_root.transform, "Task", "", 8);
        _taskText.color = TaskColor;
        _taskText.alignment = TextAnchor.MiddleLeft;
        _taskText.horizontalOverflow = HorizontalWrapMode.Overflow;

        BuildHeaderButtons();

        DossierAvatar.SetActive(false);
        _historyCol.SetActive(false);
        _traitsRow.SetActive(false);
        _reasonText.gameObject.SetActive(false);
        _levelIcon.gameObject.SetActive(false);
        _levelValue.gameObject.SetActive(false);
        _taskIcon.gameObject.SetActive(false);
        _taskText.gameObject.SetActive(false);
        Relayout(false, 0, false, false, 0);
        _root.SetActive(false);
        _visible = false;
        LogService.LogInfo("[IdleSpectator] Dossier HUD ready (nametag chips + mini history)");
    }

    private static void BuildHeaderButtons()
    {
        _favoriteBtn = BuildIconButton(_root.transform, "FavoriteBtn", HudIcons.Favorite(), ToggleFavorite);
        _favoriteIcon = _favoriteBtn.transform.Find("Icon")?.GetComponent<Image>();
        _historyBtn = BuildIconButton(_root.transform, "HistoryBtn", HudIcons.ExpandHistory(), OpenFullHistoryInLore);
        _historyIcon = _historyBtn.transform.Find("Icon")?.GetComponent<Image>();
        if (_historyIcon != null)
        {
            _historyIcon.color = new Color(0.75f, 0.78f, 0.85f, 1f);
        }
    }

    private static Button BuildIconButton(Transform parent, string name, Sprite icon, UnityAction onClick)
    {
        GameObject go = new GameObject(name, typeof(RectTransform), typeof(Image), typeof(Button));
        go.transform.SetParent(parent, false);
        RectTransform rt = go.GetComponent<RectTransform>();
        rt.sizeDelta = new Vector2(BtnSize, BtnSize);

        Image bg = go.GetComponent<Image>();
        bg.color = new Color(0.12f, 0.13f, 0.16f, 0.85f);
        bg.raycastTarget = true;

        Image iconImg = HudCanvas.MakeIcon(go.transform, "Icon", BtnSize - 4f);
        RectTransform iconRt = iconImg.GetComponent<RectTransform>();
        iconRt.anchorMin = new Vector2(0.5f, 0.5f);
        iconRt.anchorMax = new Vector2(0.5f, 0.5f);
        iconRt.pivot = new Vector2(0.5f, 0.5f);
        iconRt.anchoredPosition = Vector2.zero;
        iconImg.raycastTarget = false;
        HudIcons.Apply(iconImg, icon);

        Button button = go.GetComponent<Button>();
        button.transition = Selectable.Transition.ColorTint;
        button.navigation = new Navigation { mode = Navigation.Mode.None };
        button.targetGraphic = bg;
        button.onClick.AddListener(onClick);
        ColorBlock colors = button.colors;
        colors.normalColor = Color.white;
        colors.highlightedColor = new Color(1.15f, 1.15f, 1.2f, 1f);
        colors.pressedColor = new Color(0.8f, 0.8f, 0.85f, 1f);
        button.colors = colors;
        return button;
    }

    /// <summary>
    /// Pin the card to the canvas top-right. Pivot (1,1) so width growth expands left and stays on-screen.
    /// </summary>
    private static void ApplyRootPlacement()
    {
        if (_rootRt == null)
        {
            return;
        }

        _rootRt.anchorMin = new Vector2(1f, 1f);
        _rootRt.anchorMax = new Vector2(1f, 1f);
        _rootRt.pivot = new Vector2(1f, 1f);
        _rootRt.anchoredPosition = new Vector2(-ScreenInset, -ScreenInset);
        _rootRt.localScale = Vector3.one;
    }

    private static void PlaceLine(RectTransform lineRt, float yFromTop, float height, float left)
    {
        if (lineRt == null)
        {
            return;
        }

        lineRt.anchorMin = new Vector2(0f, 1f);
        lineRt.anchorMax = new Vector2(1f, 1f);
        lineRt.pivot = new Vector2(0.5f, 1f);
        lineRt.offsetMin = new Vector2(left, -(yFromTop + height));
        lineRt.offsetMax = new Vector2(-PadX, -yFromTop);
    }
}