namespace LocationsApi.Models;

public class UpsertLocationRequest
{
    public int Q { get; set; }
    public int R { get; set; }
    public string Terrain { get; set; } = "Field";
    public string? Label { get; set; }
    public int Level { get; set; } = 1;
}

public class ClaimLocationRequest
{
    public int Q { get; set; }
    public int R { get; set; }
}

public class LocationResponse
{
    public string Id { get; set; } = "";
    public int Q { get; set; }
    public int R { get; set; }
    public string Terrain { get; set; } = "Field";
    public string Kind { get; set; } = "Open";
    public string? OwnerUsername { get; set; }
    public string? Label { get; set; }
    public int Level { get; set; }
    public DateTime? HomeAssignedAtUtc { get; set; }
    public DateTime UpdatedAtUtc { get; set; }
    public bool IsVisible { get; set; } = true;

    public static LocationResponse FromLocation(Location location) => new()
    {
        Id = location.Id,
        Q = location.Q,
        R = location.R,
        Terrain = location.Terrain,
        Kind = location.Kind,
        OwnerUsername = location.OwnerUsername,
        Label = location.Label,
        Level = location.Level,
        HomeAssignedAtUtc = location.HomeAssignedAtUtc,
        UpdatedAtUtc = location.UpdatedAtUtc,
        IsVisible = true
    };

    public static LocationResponse FromCoordinate(int q, int r) => new()
    {
        Q = q,
        R = r,
        Terrain = LocationTerrain.FromCoordinate(q, r),
        Kind = "Open",
        Level = 1,
        UpdatedAtUtc = DateTime.UtcNow,
        IsVisible = true
    };
}

public static class LocationTerrain
{
    public static string FromCoordinate(int q, int r)
    {
        var height = Math.Max(Math.Max(Math.Abs(q), Math.Abs(r)), Math.Abs(-q - r));
        if (height <= 1)
        {
            return "Command";
        }
        if ((q * 19 + r * 7) % 5 == 0)
        {
            return "Highland";
        }
        if ((q + r) % 4 == 0)
        {
            return "Forest";
        }
        if ((q * 3 - r) % 6 == 0)
        {
            return "Ore";
        }
        return "Field";
    }
}