Split the person card into overview, clothes, carry and now tabs.

Today's history is a paged HTTP log on the worker, not on the card or in people.json.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/HSchool.Simulation/HSchool.Simulation.csproj

@@ -9,6 +9,10 @@
       <PackageReference Include="Arch" />
     </ItemGroup>
 
+    <ItemGroup>
+      <InternalsVisibleTo Include="HSchool.Simulation.Tests" />
+    </ItemGroup>
+
     <ItemGroup>
       <ProjectReference Include="..\HSchool.Ai\HSchool.Ai.csproj" />
       <ProjectReference Include="..\HSchool.Content\HSchool.Content.csproj" />

src/HSchool.Simulation/PersonLog.cs

@@ -0,0 +1,179 @@
+using System.Globalization;
+using Arch.Core;
+using HSchool.Content;
+
+namespace HSchool.Simulation;
+
+/// <summary>
+/// Log row types the person card pages. Captions for morning issue are ready even while phase 34
+/// is the one that appends that row.
+/// </summary>
+public static class PersonLogTypes
+{
+    public const string ActionStarted = "action-started";
+    public const string ActionEnded = "action-ended";
+    public const string ApparelReplaced = "apparel-replaced";
+    public const string ApparelChanged = "apparel-changed";
+}
+
+/// <summary>
+/// One thing that happened to a person today. Stored on the school worker, not in <c>people.json</c>.
+/// The day boundary is six in the morning — the same hour skip lands on.
+/// </summary>
+public sealed record PersonLogEvent(string PersonId, DateTime Time, string Type, string? ThingDef)
+{
+    public string Caption(DefCatalog catalog, string locale)
+    {
+        ArgumentNullException.ThrowIfNull(catalog);
+        if (ThingDef is null)
+        {
+            return Type;
+        }
+
+        if (Type.Equals(PersonLogTypes.ApparelReplaced, StringComparison.Ordinal))
+        {
+            var name = catalog.Things.TryGetValue(ThingDef, out var def)
+                ? catalog.Label(locale, def)
+                : ThingDef;
+            return string.Format(CultureInfo.InvariantCulture, catalog.Text(locale, "ApparelReplaced"), name);
+        }
+
+        if (Type.Equals(PersonLogTypes.ActionStarted, StringComparison.Ordinal)
+            || Type.Equals(PersonLogTypes.ActionEnded, StringComparison.Ordinal))
+        {
+            var name = catalog.Actions.TryGetValue(ThingDef, out var action)
+                ? catalog.Label(locale, action)
+                : ThingDef;
+            var key = Type.Equals(PersonLogTypes.ActionStarted, StringComparison.Ordinal)
+                ? "ActionStarted"
+                : "ActionEnded";
+            return string.Format(CultureInfo.InvariantCulture, catalog.Text(locale, key), name);
+        }
+
+        return Type;
+    }
+}
+
+public readonly record struct PersonLogQuery(string? Search, bool Descending, int Page, int PageSize);
+
+public sealed record PersonLogPage(int Total, int Page, int PageSize, IReadOnlyList<PersonLogRow> Entries);
+
+public sealed record PersonLogRow(DateTime Time, string Type, string Label, string? ThingDef);
+
+/// <summary>Filters, sorts and pages today's log for one person. Does not touch a World.</summary>
+public static class PersonLogBrowser
+{
+    public const int DefaultPageSize = 20;
+
+    public const int MaxPageSize = 100;
+
+    public static PersonLogPage Apply(
+        IReadOnlyList<PersonLogEvent> log,
+        string personId,
+        PersonLogQuery query,
+        DefCatalog? catalog,
+        string locale)
+    {
+        ArgumentNullException.ThrowIfNull(log);
+        ArgumentException.ThrowIfNullOrWhiteSpace(personId);
+
+        var page = Math.Max(1, query.Page);
+        var pageSize = Math.Clamp(query.PageSize, 1, MaxPageSize);
+        var search = string.IsNullOrWhiteSpace(query.Search) ? null : query.Search.Trim();
+        var rows = new List<PersonLogRow>();
+        foreach (var row in log)
+        {
+            if (!row.PersonId.Equals(personId, StringComparison.Ordinal))
+            {
+                continue;
+            }
+
+            var label = catalog is null ? row.Type : row.Caption(catalog, locale);
+            if (search is not null
+                && !label.Contains(search, StringComparison.OrdinalIgnoreCase)
+                && !row.Type.Contains(search, StringComparison.OrdinalIgnoreCase)
+                && (row.ThingDef is null || !row.ThingDef.Contains(search, StringComparison.OrdinalIgnoreCase)))
+            {
+                continue;
+            }
+
+            rows.Add(new PersonLogRow(row.Time, row.Type, label, row.ThingDef));
+        }
+
+        rows.Sort((left, right) =>
+        {
+            var byTime = left.Time.CompareTo(right.Time);
+            return query.Descending ? -byTime : byTime;
+        });
+
+        var skip = (page - 1) * pageSize;
+        var slice = skip >= rows.Count ? Array.Empty<PersonLogRow>() : rows.Skip(skip).Take(pageSize).ToArray();
+        return new PersonLogPage(rows.Count, page, pageSize, slice);
+    }
+}
+
+/// <summary>Records action start/end and clears yesterday at six in the morning.</summary>
+internal static class PersonDayLog
+{
+    private static readonly QueryDescription IdentityAndActivity =
+        new QueryDescription().WithAll<PersonIdentity, PersonActivity>();
+
+    internal static bool CrossedDayStart(DateTime before, DateTime after)
+    {
+        if (after <= before)
+        {
+            return false;
+        }
+
+        var cursor = DateTime.SpecifyKind(before.Date, DateTimeKind.Utc).Add(SchoolDay.DayStart.ToTimeSpan());
+        if (before >= cursor)
+        {
+            cursor = cursor.AddDays(1);
+        }
+
+        return after >= cursor;
+    }
+
+    internal static void Sync(School school)
+    {
+        var world = school.World;
+        var seen = new HashSet<string>(StringComparer.Ordinal);
+        var query = IdentityAndActivity;
+        world.Query(in query, (ref PersonIdentity identity, ref PersonActivity activity) =>
+        {
+            seen.Add(identity.Id);
+            Record(school, identity.Id, activity.ActionId);
+        });
+
+        foreach (var id in school.LoggedActivity.Keys.ToArray())
+        {
+            if (!seen.Contains(id))
+            {
+                Record(school, id, current: null);
+                school.LoggedActivity.Remove(id);
+            }
+        }
+    }
+
+    private static void Record(School school, string personId, string? current)
+    {
+        school.LoggedActivity.TryGetValue(personId, out var last);
+        if (string.Equals(last, current, StringComparison.Ordinal))
+        {
+            school.LoggedActivity[personId] = current;
+            return;
+        }
+
+        if (last is not null)
+        {
+            school.AppendDayLog(new PersonLogEvent(personId, school.Clock.Time, PersonLogTypes.ActionEnded, last));
+        }
+
+        if (current is not null)
+        {
+            school.AppendDayLog(new PersonLogEvent(personId, school.Clock.Time, PersonLogTypes.ActionStarted, current));
+        }
+
+        school.LoggedActivity[personId] = current;
+    }
+}

src/HSchool.Simulation/School.cs

@@ -16,6 +16,7 @@ public sealed class School : IDisposable
     public const int MaxNameLength = 40;
 
     private bool _disposed;
+    private readonly List<PersonLogEvent> _dayLog = [];
 
     internal School(int id, string name, DateTime startDate, DefCatalog? catalog, MapLayout? map)
     {
@@ -111,6 +112,21 @@ public sealed class School : IDisposable
 
     public int PendingDecisionCount => DecisionQueue.Count;
 
+    /// <summary>
+    /// Today's history for the person card. Cleared at six in the morning. Not written to disk.
+    /// </summary>
+    public IReadOnlyList<PersonLogEvent> DayLog => _dayLog;
+
+    internal Dictionary<string, string?> LoggedActivity { get; } = new(StringComparer.Ordinal);
+
+    internal void ResetDayLog()
+    {
+        _dayLog.Clear();
+        LoggedActivity.Clear();
+    }
+
+    internal void AppendDayLog(PersonLogEvent row) => _dayLog.Add(row);
+
     public void QueueDecision(string personId)
     {
         ObjectDisposedException.ThrowIf(_disposed, this);
@@ -137,6 +153,7 @@ public sealed class School : IDisposable
         LastDecisionSlot = null;
         Plans.Clear();
         DecisionQueue.Clear();
+        LoggedActivity.Clear();
     }
 
     public bool TryStartAction(string personId, string actionId)
@@ -144,7 +161,13 @@ public sealed class School : IDisposable
         ObjectDisposedException.ThrowIf(_disposed, this);
         ArgumentException.ThrowIfNullOrWhiteSpace(personId);
         ArgumentException.ThrowIfNullOrWhiteSpace(actionId);
-        return ActivitySystem.TryStart(this, personId, actionId);
+        var started = ActivitySystem.TryStart(this, personId, actionId);
+        if (started)
+        {
+            PersonDayLog.Sync(this);
+        }
+
+        return started;
     }
 
     public void ConfigurePresence(int weekDays = 5, int maxDecisionsPerTick = 64, int maxSkipDays = 400)
@@ -203,6 +226,7 @@ public sealed class School : IDisposable
 
         var before = Clock.Time;
         Clock.JumpTo(next.Value);
+        ResetDayLog();
         var peopleChanged = TryYearlyIntake(before, next.Value);
         peopleChanged |= TryApplicantRefresh();
         PlanDay = null;
@@ -257,6 +281,11 @@ public sealed class School : IDisposable
         var peopleChanged = false;
         if (gameMinutes > 0)
         {
+            if (PersonDayLog.CrossedDayStart(before, Clock.Time))
+            {
+                ResetDayLog();
+            }
+
             peopleChanged = TryYearlyIntake(before, Clock.Time);
             peopleChanged |= TryApplicantRefresh();
             if (peopleChanged)
@@ -271,6 +300,8 @@ public sealed class School : IDisposable
                 PresenceSystem.Enqueue(this, id);
             }
 
+            PersonDayLog.Sync(this);
+
             if (Catalog is not null)
             {
                 var below = PresenceSystem.BelowThreshold(this);