using System.Collections.Generic;
using System.Threading.Tasks;
using UnityEngine;
using VContainer;
using VContainer.Unity;

namespace Common
{
    public class GameLauncher : IStartable
    {
        [Inject] private LifetimeScope _globalScope;
        
        protected LifetimeScope lifetimeScope;
        
        protected List<Task<bool>> ResourceTasks = new();

        protected bool IsResourcesLoaded;
        
        public async void Start()
        {
            CreateLifetimeScope();
            CreateResourcesList();
            
            await LoadResources();
            
            Launch();
        }
        
        private void CreateLifetimeScope()
        {
            var lifetimeScopeName = ResolveLifetimeScopePrefab();
            var g = Resources.Load<LifetimeScope>($"Scopes/{lifetimeScopeName}");

            lifetimeScope = _globalScope.CreateChildFromPrefab(g);
        }
        
        protected virtual string ResolveLifetimeScopePrefab()
        {
            return "GameScope";
        }
        
        protected virtual void CreateResourcesList()
        {
        }

        protected virtual void Launch()
        {
        }
        
        private async Task<bool> LoadResources()
        {
            await Task.WhenAll(ResourceTasks);

            IsResourcesLoaded = true;

            foreach (var task in ResourceTasks)
            {
                if (!task.Result)
                {
                    IsResourcesLoaded = false;
                    break;
                }
            }

            if (!IsResourcesLoaded)
            {
                return false;
            }

            return true;
        }
    }
}