using System;
using ADOFAIRenderer;
using ADOFAIRenderer.Core;
using ADOFAIRenderer.Core.Data;
using ADOFAIRenderer.UI;
using FFmpeg.AutoGen;
using MelonLoader;
using MelonLoader.Utils;
using UnityEngine;
using Object = UnityEngine.Object;

[assembly: MelonInfo(typeof(RenderMod), "ADOFAI Renderer", "0.4.0-BETA", "ADOFAI Editor Forum")]
[assembly: MelonGame("7th Beat Games", "A Dance of Fire and Ice")]

namespace ADOFAIRenderer;

/// <summary>
/// MelonLoader entry point of the mod. Loads the settings and localization, points FFmpeg.AutoGen at the native
/// FFmpeg libraries, and creates the persistent manager objects (RenderManager, FirstUpdateHook, RendererUIManager).
/// </summary>
internal class RenderMod : MelonMod
{
    /// <summary>
    /// When true, the render button is not added to the level editor (scnEditorPatch checks it in scnEditor.Start).
    /// Set by the user from the NVIDIA driver warning dialog (FirstUpdateHook). Main thread only.
    /// </summary>
    // ReSharper disable once MemberCanBePrivate.Global
    public static bool IsFeatureDisabled = false;

    /// <summary>
    /// Expiration time of this build (UTC). After it, the render configuration window shows an "expired" note next to
    /// the version text. It does not block rendering.
    /// </summary>
    public static DateTime ExpirationTime = new(2026, 11, 21, 0, 0, 0, DateTimeKind.Utc);

    /// <summary>
    /// Called once by MelonLoader after the mod assembly is loaded.
    /// The native FFmpeg libraries are loaded from MelonLoader's UserLibs directory.
    /// The three manager GameObjects are marked DontDestroyOnLoad so they survive scene changes.
    /// </summary>
    public override void OnInitializeMelon()
    {
        GlobalSettings.Load();
        Localization.LocalizationManager.Initialize();
        ffmpeg.RootPath = MelonEnvironment.UserLibsDirectory;
            
        var renderManagerObj = new GameObject("Render Manager");
        var updateHookerObj = new GameObject("Update Hooker");
        var uiManagerObj = new GameObject("Renderer UI Manager");
        Object.DontDestroyOnLoad(renderManagerObj);
        Object.DontDestroyOnLoad(updateHookerObj);
        Object.DontDestroyOnLoad(uiManagerObj);
            
        renderManagerObj.AddComponent<RenderManager>();
        updateHookerObj.AddComponent<FirstUpdateHook>();
        uiManagerObj.AddComponent<RendererUIManager>();
        ModAssets.Load();
    }

    /// <summary>
    /// Called by MelonLoader when the game quits. Aborts an active render (encoders disposed, render thread joined,
    /// unfinished output file deleted) through RenderManager.CleanUpActiveRender.
    /// </summary>
    public override void OnApplicationQuit()
    {
        if (RenderManager.Instance == null) return;
        Melon<RenderMod>.Logger.Msg("MelonLoader shutdown detected: Forcefully terminating and cleaning up active RenderManager processes.");
        RenderManager.Instance.CleanUpActiveRender();
    }
}