using HSchool.Content;

namespace HSchool.Schedule.Tests;

internal static class PackDocuments
{
    public static IReadOnlyList<ContentDocument> FromDirectory(string packId, string packRoot)
    {
        var documents = new List<ContentDocument>();
        foreach (var path in Directory.EnumerateFiles(packRoot, "*.*", SearchOption.AllDirectories))
        {
            if (!path.EndsWith(".jsonc", StringComparison.OrdinalIgnoreCase)
                && !path.EndsWith(".json", StringComparison.OrdinalIgnoreCase))
            {
                continue;
            }

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

        return documents;
    }
}

internal static class Fixtures
{
    public static DefCatalog Catalog()
    {
        var root = Path.Combine(AppContext.BaseDirectory, "vanilla");
        return new CatalogLoader().Load(
            [CatalogLoader.CorePackId],
            PackDocuments.FromDirectory(CatalogLoader.CorePackId, root));
    }

    public static MapLayout ClassroomsAndGym(int classes, int desks = 16)
    {
        var rooms = new List<RoomNode>(classes + 1);
        for (var i = 0; i < classes; i++)
        {
            rooms.Add(Classroom(i, desks));
        }

        rooms.Add(new RoomNode
        {
            Id = "gym-hall",
            Def = "GymHall",
            Building = "gym",
            Floor = "gym-floor",
            Slots = [new SlotFill { Key = "benches", Thing = "Bench", Count = 4 }],
        });

        return new MapLayout { Rooms = rooms };
    }

    public static MapLayout ClassroomAndLab(int desks = 16, int computers = 12)
    {
        return new MapLayout
        {
            Rooms =
            [
                Classroom(0, desks),
                new RoomNode
                {
                    Id = "computer-lab",
                    Def = "ComputerLab",
                    Building = "main",
                    Floor = "floor-1",
                    Slots =
                    [
                        new SlotFill { Key = "teacherDesk", Thing = "Desk", Count = 1 },
                        new SlotFill { Key = "teacherChair", Thing = "Chair", Count = 1 },
                        new SlotFill { Key = "computers", Thing = "Computer", Count = computers },
                    ],
                },
            ],
        };
    }

    public static PlannerClass Class(int index, int year, int pupils, string letter = "A") =>
        new($"y{year}{letter}", year, letter, $"classroom-{index:00}", pupils);

    public static PlannerTeacher Teacher(string id, params string[] subjects) =>
        new(id, subjects);

    public static RoomNode Classroom(int index, int desks) =>
        new()
        {
            Id = $"classroom-{index:00}",
            Def = "Classroom",
            Building = "main",
            Floor = "floor-1",
            Label = $"{101 + index}",
            Seats = desks,
        };

    public static string RepoRoot()
    {
        var dir = new DirectoryInfo(AppContext.BaseDirectory);
        while (dir is not null && !File.Exists(Path.Combine(dir.FullName, "h-school.sln")))
        {
            dir = dir.Parent;
        }

        if (dir is null)
        {
            throw new InvalidOperationException("Could not find h-school.sln from the test output directory.");
        }

        return dir.FullName;
    }
}