using Godot;
using Godot.Collections;
using Newlon;
using System.Text.Json;
using System.Collections.Generic;

public partial class SaveSerializer : Node
{
	const string SAVE_PATH = "user://save.json";
	public override void _Ready()
	{
		GetTree().AutoAcceptQuit = false;
		LoadGame();
	}

	public override void _Notification(int what)
	{
		if (what == NotificationWMCloseRequest)
		{
			SaveGame();
			GetTree().Quit();
		}
	}
	public static void SaveGame()
	{
		var access = FileAccess.Open(SAVE_PATH, FileAccess.ModeFlags.Write);
        var playerProgress = PlayerProgress.Instance;
        var save = new SaveData
        {

            SFXVolume = (float)Settings.SFX,
            MusicVolume = (float)Settings.Music,
            SplashSeen = Settings.Splash,
            Money = playerProgress.Money,
            SeedpacketSlots = playerProgress.MaxSeedpackets,
            PlayerPlants = [],

            SaveGameVersion = (string)ProjectSettings.GetSetting("application/config/version")
        };

        foreach (var plant in playerProgress.PlayerPlants)
		{
			save.PlayerPlants.Add(plant.internal_id);
		}

		access.StoreString(JsonSerializer.Serialize<SaveData>(save));

		access.Close();
	}
	public static void LoadGame()
	{
		if (FileAccess.FileExists(SAVE_PATH) == false)
		{
			InitiateCleanSave();
			return;
		}

		var access = FileAccess.Open(SAVE_PATH, FileAccess.ModeFlags.Read);

		var parsed = JsonSerializer.Deserialize<SaveData>(access.GetAsText());

		Settings.SFX = parsed.SFXVolume;
		Settings.Music = parsed.MusicVolume;
		Settings.Splash = parsed.SplashSeen;

		AudioServer.SetBusVolumeDb(2, Mathf.LinearToDb(Mathf.Exp((float)Settings.SFX) - 1));
		AudioServer.SetBusVolumeDb(1, Mathf.LinearToDb(Mathf.Exp((float)Settings.Music) - 1));

		var playerProgress = PlayerProgress.Instance;
		playerProgress.MaxSeedpackets = parsed.SeedpacketSlots;
		playerProgress.PlayerPlants = [];

		foreach (var plantId in parsed.PlayerPlants)
		{
			playerProgress.PlayerPlants.Add(GameRegistry.GetPlantByName(plantId));
		}


		access.Close();
	}
	private static void InitiateCleanSave()
	{
		PlayerProgress.Instance.PlayerPlants = new List<PlantResource>([GameRegistry.GetPlantByName("peashooter")]);
		PlayerProgress.Instance.Money = 0;

		SaveGame();
	}
	private partial class SaveData
	{
		public float SFXVolume { get; set; }
		public float MusicVolume { get; set; }
		public string SaveGameVersion { get; set; }
		public bool SplashSeen { get; set; }
		public List<string> PlayerPlants { get; set; }
		public int Money { get; set; } = 0;
		public int SeedpacketSlots { get; set; } = 6;
		public List<string> FinishedLevels { get; set; } = new();
	}
}