using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using Cinemachine;
using MessagePack;
using UniRx;
using UnityEngine;
using Unity.Mathematics;
using UnityEngine.InputSystem;
using static Unity.Mathematics.math;
using float2 = Unity.Mathematics.float2;

public class ActionGameManager : MonoBehaviour
{
    public GameSettings Settings;
    public SectorRenderer SectorRenderer;
    public CinemachineVirtualCamera TopDownCamera;
    public CinemachineVirtualCamera FollowCamera;
    //public PlayerInput Input;
    
    private DirectoryInfo _filePath;
    private bool _editMode;
    private float _time;
    private AetheriaInput _input;
    private int _zoomLevelIndex;
    
    public DatabaseCache Cache { get; private set; }
    public GameContext Context { get; private set; }
    public Zone Zone { get; private set; }

    void Start()
    {
        ConsoleController.MessageReceiver = this;
        _filePath = new DirectoryInfo(Application.dataPath).Parent.CreateSubdirectory("GameData");
        Cache = new DatabaseCache();
        Cache.Load(_filePath.FullName);
        Context = new GameContext(Cache, Debug.Log);

        var zoneFile = Path.Combine(_filePath.FullName, "Home.zone");
        
        // If the game has already been run, there will be a Home file containing a ZonePack; if not, generate one
        var zonePack = File.Exists(zoneFile) ? 
            MessagePackSerializer.Deserialize<ZonePack>(File.ReadAllBytes(zoneFile)) : 
            ZoneGenerator.GenerateZone(
                settings: Settings.ZoneSettings,
                mapLayers: Context.MapLayers,
                resources: Context.Resources,
                mass: Settings.DefaultZoneMass,
                radius: Settings.DefaultZoneRadius
            );
        
        Zone = new Zone(Settings.PlanetSettings, zonePack);
        SectorRenderer.LoadZone(Zone);

        _input = new AetheriaInput();
        _input.Player.Enable();

        _zoomLevelIndex = Settings.DefaultMinimapZoom;
        _input.Player.MinimapZoom.performed += context =>
        {
            _zoomLevelIndex = (_zoomLevelIndex + 1) % Settings.MinimapZoomLevels.Length;
            SectorRenderer.MinimapDistance = Settings.MinimapZoomLevels[_zoomLevelIndex];
        };

        ConsoleController.AddCommand("editmode", _ => ToggleEditMode());
        ConsoleController.AddCommand("savezone", args =>
        {
            if (args.Length > 0)
                Zone.Data.Name = args[0];
            SaveZone();
        });
    }

    public void SaveZone() => File.WriteAllBytes(
        Path.Combine(_filePath.FullName, $"{Zone.Data.Name}.zone"), MessagePackSerializer.Serialize(Zone.Pack()));

    public void ToggleEditMode()
    {
        _editMode = !_editMode;
        FollowCamera.gameObject.SetActive(!_editMode);
        TopDownCamera.gameObject.SetActive(_editMode);
    }

    void Update()
    {
        if(!_editMode)
        {
            _time += Time.deltaTime;
            Context.Time = Time.time;
        }
        Zone.Update(_time, Time.deltaTime);
        SectorRenderer.Time = _time;
    }
}