using Godot;
using Theriapolis.GodotHost.UI;

namespace Theriapolis.GodotHost.Scenes;

/// <summary>
/// Right-rail summary of the in-progress character. Single
/// <see cref="Refresh"/> rebuilds every section per
/// GODOT_PORTING_GUIDE.md §10 — the panel is small enough that full
/// rebuild is cheap and partial-update logic isn't worth it. Connect
/// the draft via <see cref="SetDraft"/>; the Wizard does this on _Ready.
/// </summary>
public partial class Aside : MarginContainer
{
    private CharacterDraft? _draft;
    private VBoxContainer _content = null!;

    public override void _Ready()
    {
        AddThemeConstantOverride("margin_left", 18);
        AddThemeConstantOverride("margin_right", 18);
        AddThemeConstantOverride("margin_top", 18);
        AddThemeConstantOverride("margin_bottom", 18);

        _content = new VBoxContainer();
        _content.AddThemeConstantOverride("separation", 18);
        AddChild(_content);
    }

    public void SetDraft(CharacterDraft draft)
    {
        _draft = draft;
        _draft.Changed += Refresh;
        Refresh();
    }

    private void Refresh()
    {
        if (_draft is null || _content is null) return;
        foreach (var c in _content.GetChildren()) c.QueueFree();

        _content.AddChild(new Label { Text = "SUMMARY" });

        if (_draft.IsHybrid)
        {
            AddBlock("Origin", "Hybrid");
            AddBlock(_draft.DominantParent == "sire" ? "Sire (dominant)" : "Sire",
                FormatLineage(_draft.SireCladeId, _draft.SireSpeciesId));
            AddBlock(_draft.DominantParent == "dam" ? "Dam (dominant)" : "Dam",
                FormatLineage(_draft.DamCladeId, _draft.DamSpeciesId));
        }
        else
        {
            AddBlock("Clade",   CodexContent.Clade(_draft.CladeId)?.Name);
            AddBlock("Species", CodexContent.SpeciesById(_draft.SpeciesId)?.Name);
        }

        AddBlock("Calling",    CodexContent.Class(_draft.ClassId)?.Name);
        AddBlock("Background", CodexContent.Background(_draft.BackgroundId)?.Name);
        AddBlock("Name",       string.IsNullOrEmpty(_draft.CharacterName) ? null : _draft.CharacterName);
    }

    private static string? FormatLineage(string cladeId, string speciesId)
    {
        var clade = CodexContent.Clade(cladeId);
        var species = CodexContent.SpeciesById(speciesId);
        if (clade is null && species is null) return null;
        if (species is not null) return $"{species.Name} ({clade?.Name ?? cladeId})";
        return clade?.Name;
    }

    private void AddBlock(string label, string? value)
    {
        var v = new VBoxContainer();
        v.AddThemeConstantOverride("separation", 4);
        _content.AddChild(v);
        v.AddChild(new Label { Text = label.ToUpperInvariant() });
        v.AddChild(new Label { Text = value ?? "—" });
    }
}