using Arch.Core;
using HSchool.Ai;
using HSchool.Content;
using HSchool.People;

namespace HSchool.Simulation.Tests;

public class PersonDayLogTests
{
    private static readonly DateTime TuesdayFive = new(2012, 4, 3, 5, 0, 0, DateTimeKind.Utc);
    private static readonly DateTime TuesdayNoon = new(2012, 4, 3, 12, 0, 0, DateTimeKind.Utc);
    private static readonly DateTime TuesdayEvening = new(2012, 4, 3, 22, 0, 0, DateTimeKind.Utc);

    [Fact]
    public void TryStartAndFinish_WriteStartAndEndRows()
    {
        using var school = OpenCafeteria(TuesdayNoon);
        Spawn(school, "a", hunger: 0.3f);

        Assert.True(school.TryStartAction("a", "EatLunch"));
        Assert.Contains(
            school.DayLog,
            row => row.PersonId == "a"
                && row.Type == PersonLogTypes.ActionStarted
                && row.ThingDef == "EatLunch");

        TickMinutes(school, 16);

        Assert.Contains(
            school.DayLog,
            row => row.PersonId == "a"
                && row.Type == PersonLogTypes.ActionEnded
                && row.ThingDef == "EatLunch");
        Assert.Equal(
            "начал: Обед",
            school.DayLog.First(row => row.Type == PersonLogTypes.ActionStarted).Caption(school.Catalog!, "ru"));
    }

    [Fact]
    public void AfterSix_YesterdaysRowsAreGone()
    {
        using var school = OpenCafeteria(TuesdayFive);
        Spawn(school, "a", hunger: 0.3f);
        Assert.True(school.TryStartAction("a", "EatLunch"));
        Assert.NotEmpty(school.DayLog);

        TickMinutes(school, 61);

        Assert.True(school.Clock.Time >= new DateTime(2012, 4, 3, 6, 0, 0, DateTimeKind.Utc));
        Assert.Empty(school.DayLog);
    }

    [Fact]
    public void SkipEmpty_ClearsYesterdaysRows()
    {
        using var school = OpenEmpty(TuesdayEvening);
        school.AppendDayLog(new PersonLogEvent("f0.c0", TuesdayEvening, PersonLogTypes.ActionStarted, "EatLunch"));
        Assert.NotEmpty(school.DayLog);

        var result = school.TrySkipEmpty();

        Assert.True(result.Succeeded);
        Assert.Empty(school.DayLog);
    }

    [Fact]
    public void Pages_DoNotOverlap()
    {
        var time = TuesdayNoon;
        var log = new List<PersonLogEvent>();
        for (var i = 0; i < 25; i++)
        {
            log.Add(new PersonLogEvent("p", time.AddMinutes(i), PersonLogTypes.ActionStarted, "EatLunch"));
        }

        var first = PersonLogBrowser.Apply(log, "p", new PersonLogQuery(null, Descending: false, Page: 1, PageSize: 10), catalog: null, "ru");
        var second = PersonLogBrowser.Apply(log, "p", new PersonLogQuery(null, Descending: false, Page: 2, PageSize: 10), catalog: null, "ru");

        Assert.Equal(25, first.Total);
        Assert.Equal(10, first.Entries.Count);
        Assert.Equal(10, second.Entries.Count);
        Assert.Empty(first.Entries.Select(row => row.Time).Intersect(second.Entries.Select(row => row.Time)));
        Assert.Equal(time, first.Entries[0].Time);
        Assert.Equal(time.AddMinutes(10), second.Entries[0].Time);
    }

    [Fact]
    public void Search_FiltersByCaption()
    {
        var log = new[]
        {
            new PersonLogEvent("p", TuesdayNoon, PersonLogTypes.ActionStarted, "EatLunch"),
            new PersonLogEvent("p", TuesdayNoon.AddMinutes(1), PersonLogTypes.ActionStarted, "UseToilet"),
        };

        var page = PersonLogBrowser.Apply(log, "p", new PersonLogQuery("toilet", Descending: false, Page: 1, PageSize: 20), catalog: null, "en");
        Assert.Equal(1, page.Total);
        Assert.Equal("action-started", page.Entries[0].Type);
        Assert.Equal("UseToilet", page.Entries[0].ThingDef);
    }

    private static void TickMinutes(School school, int minutes)
    {
        for (var i = 0; i < minutes; i++)
        {
            school.Tick(0.2d, 5d);
        }
    }

    private static School OpenCafeteria(DateTime start)
    {
        var catalog = new CatalogLoader().Load(
            [CatalogLoader.CorePackId],
            [
                new ContentDocument("core", "defs/actions/sit.jsonc", """{ "defName": "Sit", "abstract": true }"""),
                new ContentDocument(
                    "core",
                    "defs/actions/eat.jsonc",
                    """
                    {
                      "defName": "EatLunch",
                      "room": "Cafeteria",
                      "thing": "Chair",
                      "minutes": 15,
                      "need": "Hunger",
                      "needGain": 0.5,
                      "roles": ["student"]
                    }
                    """),
                new ContentDocument(
                    "core",
                    "defs/needs/hunger.jsonc",
                    """{ "defName": "Hunger", "initial": 1, "decayPerHour": 0, "min": 0, "max": 1 }"""),
                new ContentDocument("core", "defs/things/chair.jsonc", """{ "defName": "Chair", "actions": ["Sit"] }"""),
                new ContentDocument("core", "defs/territories/yard.jsonc", """{ "defName": "Yard", "travelMinutes": 1 }"""),
                new ContentDocument("core", "defs/buildings/main.jsonc", """{ "defName": "Main" }"""),
                new ContentDocument("core", "defs/floors/floor.jsonc", """{ "defName": "Floor" }"""),
                new ContentDocument(
                    "core",
                    "defs/rooms/cafeteria.jsonc",
                    """
                    {
                      "defName": "Cafeteria",
                      "slots": [{ "key": "seats", "thing": "Chair" }],
                      "travelMinutes": 1
                    }
                    """),
                new ContentDocument("core", "localizations/ru.jsonc", """{ "EatLunch": "Обед", "ActionStarted": "начал: {0}", "ActionEnded": "закончил: {0}" }"""),
            ]);
        var map = new MapLayout
        {
            Territory = new TerritoryNode { Id = "yard", Def = "Yard" },
            Buildings = [new BuildingNode { Id = "main", Def = "Main" }],
            Floors = [new FloorNode { Id = "floor-1", Def = "Floor", Building = "main" }],
            Rooms =
            [
                new RoomNode
                {
                    Id = "cafe",
                    Def = "Cafeteria",
                    Building = "main",
                    Floor = "floor-1",
                    Slots = [new SlotFill { Key = "seats", Thing = "Chair", Count = 8 }],
                },
            ],
            Links = [new MapLink { A = "yard", B = "cafe" }],
        };
        MapValidator.Validate(map, catalog);
        return School.Create(1, "Столовая", start, catalog, map);
    }

    private static void Spawn(School school, string id, float hunger)
    {
        school.World.Create(
            new PersonIdentity(id, "f", false, TuesdayNoon, DummyName()),
            new PersonRoles(true, false, false, null, null, null),
            new PersonNeeds(new Dictionary<string, float>(StringComparer.Ordinal) { ["Hunger"] = hunger }),
            new Presence("cafe", 0f, "cafe", false, []),
            PersonActivity.Idle);
    }

    private static School OpenEmpty(DateTime start)
    {
        var (catalog, map) = Vanilla();
        var roster = RosterGenerator.Generate(catalog, map, schoolSeed: 1, "Russia", start);
        var pool = ApplicantPool.Create(catalog, roster, schoolSeed: 1, "Russia", start);
        var school = School.Create(1, "Пустая", start, catalog, map);
        school.InstallPeople(roster, seed: 1, "Russia", pool);
        school.ConfigurePresence(weekDays: 5, maxDecisionsPerTick: 10_000);
        return school;
    }

    private static (DefCatalog Catalog, MapLayout Map) Vanilla()
    {
        var root = Path.Combine(AppContext.BaseDirectory, "vanilla");
        var documents = new List<ContentDocument>();
        foreach (var path in Directory.EnumerateFiles(root, "*.*", SearchOption.AllDirectories))
        {
            if (!path.EndsWith(".jsonc", StringComparison.OrdinalIgnoreCase)
                && !path.EndsWith(".json", StringComparison.OrdinalIgnoreCase))
            {
                continue;
            }

            var relative = Path.GetRelativePath(root, path).Replace('\\', '/');
            documents.Add(new ContentDocument(CatalogLoader.CorePackId, relative, File.ReadAllText(path)));
        }

        var catalog = new CatalogLoader().Load([CatalogLoader.CorePackId], documents);
        var map = CatalogLoader.LastDefaultMap([CatalogLoader.CorePackId], documents);
        Assert.NotNull(map);
        return (catalog, map);
    }

    private static PersonName DummyName()
    {
        var cases = new CaseTable
        {
            Nom = "А",
            Gen = "А",
            Dat = "А",
            Acc = "А",
            Ins = "А",
            Pre = "А",
        };
        return new PersonName("А", "А", "А", cases, cases, cases);
    }
}