using S3.Modules.MeshLod;
using S3.Modules.PhysicsOptimizer;
using UnityEngine;

namespace S3.Modules.Profiler;

static class ProfilerSettingsUI
{
    public static void Draw()
    {
        ProfilerSettings s = ProfilerModule.Settings;
        bool changed = false;

        GUILayout.BeginVertical();

        GUILayout.Label("<b>Profiler</b>  — in-game frame-time overlay with module readouts");
        GUILayout.Space(4f);
        GUILayout.Label(
            "  Always shows the render and physics frame-time graph.\n" +
            "  Physics Optimizer and Mesh LOD sections appear when those modules are enabled.",
            GUI.skin.label);

        // ── Overlay visibility ────────────────────────────────────────────────
        GUILayout.Space(10f);
        GUILayout.Label("<b>Display</b>");
        GUILayout.Space(4f);

        bool newVisible = GUILayout.Toggle(s.visible, " Show overlay in-game");
        if (newVisible != s.visible)
        {
            s.visible = newVisible;
            if (ProfilerOverlayGUI.Instance != null)
                ProfilerOverlayGUI.Instance.Visible = newVisible;
            changed = true;
        }

        GUILayout.Space(4f);

        GUILayout.BeginHorizontal();
        GUILayout.Label($"Opacity:  {s.opacity * 100f:F0}%", GUILayout.Width(110f));
        float newOpacity = GUILayout.HorizontalSlider(s.opacity, 0.1f, 1.0f, GUILayout.Width(200f));
        GUILayout.EndHorizontal();
        if (Mathf.Abs(newOpacity - s.opacity) > 0.01f)
        {
            s.opacity = newOpacity;
            if (ProfilerOverlayGUI.Instance != null)
                ProfilerOverlayGUI.Instance.Opacity = newOpacity;
            changed = true;
        }

        // ── Section visibility ────────────────────────────────────────────────
        GUILayout.Space(10f);
        GUILayout.Label("<b>Sections</b>");
        GUILayout.Space(4f);

        bool physAvail = PhysicsOptimizerModule.Settings.enabled;
        GUI.enabled = physAvail;
        bool newPhys = GUILayout.Toggle(s.showPhysicsSection && physAvail,
            " Physics Optimizer" + (physAvail ? "" : "  (module not enabled)"));
        GUI.enabled = true;
        if (newPhys != s.showPhysicsSection && physAvail)
        { s.showPhysicsSection = newPhys; changed = true; }

        bool meshAvail = MeshLodModule.Settings.enabled;
        GUI.enabled = meshAvail;
        bool newMesh = GUILayout.Toggle(s.showMeshLodSection && meshAvail,
            " Mesh LOD" + (meshAvail ? "" : "  (module not enabled)"));
        GUI.enabled = true;
        if (newMesh != s.showMeshLodSection && meshAvail)
        { s.showMeshLodSection = newMesh; changed = true; }

        GUILayout.EndVertical();

        if (changed) ProfilerModule.Persist();
    }
}