using ADOFAIRenderer.Core;
using HarmonyLib;

namespace ADOFAIRenderer.Patch.Game;

/// <summary>
/// Hides the "press any key to begin" text of the first level start of a render.
/// <para>
/// Patched member: <c>scrPressToStart.ShowText()</c>, which sets the press/tap-to-begin text and shows the difficulty
/// selector (<c>scrUIController.ShowDifficultyContainer</c>). <c>scrController</c> calls it before waiting for the start input.
/// </para>
/// <para>
/// Active once per render: <c>RenderManager.skipPressToStart</c> is set when the render loads <c>scnGame</c> and cleared by
/// the first ShowText call (or when the render stops). Later ShowText calls run the original.
/// </para>
/// </summary>
[HarmonyPatch(typeof(scrPressToStart))]
// ReSharper disable once InconsistentNaming
public class scrPressToStartPatch
{
    /// <summary>
    /// Prefix of <c>scrPressToStart.ShowText</c>. When <c>skipPressToStart</c> is set, clears it, hides the difficulty
    /// selector and skips the original.
    /// </summary>
    /// <returns>True to run the original method; false to skip it (first ShowText of a render).</returns>
    [HarmonyPrefix]
    [HarmonyPatch("ShowText")]
    private static bool PreventShowText()
    {
        if (!RenderManager.Instance || !RenderManager.Instance.skipPressToStart) return true;

        RenderManager.Instance.skipPressToStart = false;

        // scrPressToStart.ShowText ends with ShowDifficultyContainer(mode). Skipping ShowText skips that call too,
        // which leaves the difficulty selector active and clickable. DontShow deactivates difficultyContainer
        // and makes the keyboard difficulty shortcuts (difficultyUIMode != DontShow checks) do nothing.
        if (scrUIController.instance)
            scrUIController.instance.ShowDifficultyContainer(DifficultyUIMode.DontShow);
        return false;
    }
}