using System;
using System.Collections;
using AibisDream;
using AibisDream.Framework;
using AibisDream.Kit;
using AibisDream.SaveSystem;
using UnityEngine;

namespace AibisDream.FixSystem
{
    public class FixSystemCenter : Singleton<FixSystemCenter>, ISceneDialogueGate
    {
        public FixSceneMode CurrentMode => Director.CurrentMode;

        public FixSceneMode defaultMode = FixSceneMode.Default;

        public bool IsDirectorReady { get; private set; }

        public bool IsDialogueReady => IsDirectorReady;

        public static IOCContainer SystemDic = new();
        public static FixSceneContext Context;
        public static FixSceneDirector Director;

        public override void OnSingletonInit()
        {
            SystemDic ??= new IOCContainer();
            Context = new FixSceneContext(SystemDic);
            Director = new FixSceneDirector();
            IsDirectorReady = false;
        }

        private void Start()
        {
            if (SaveRestoreOrchestrator.IsRestoring)
            {
                return;
            }

            StartCoroutine(InitDirectorRoutine());
        }

        private IEnumerator InitDirectorRoutine()
        {
            IsDirectorReady = false;
            yield return Director.Init(defaultMode);
            IsDirectorReady = true;
        }

        public override void OnSingletonDestroy()
        {
            IsDirectorReady = false;
            CameraKit.Instance?.RemoveAllCam();
            BubbleSlotKit.Instance?.RemoveAll();
            Director?.Reset();
            Context?.Clear();
        }

        public IEnumerator TransitionTo(FixSceneMode nextMode, string args = "")
        {
            yield return Director.TransitionTo(nextMode, args);
        }

        public IEnumerator TransitionToImmediate(FixSceneMode nextMode, string args = "")
        {
            yield return Director.TransitionToImmediate(nextMode, args);
        }

        /// <summary>Captures the macro Fix scene cue snapshot.</summary>
        public FixSnapshotDto CaptureSnapshot()
        {
            return new FixSnapshotDto
            {
                state = Director.CurrentMode.ToString(),
                args = Director.CurrentArgs
            };
        }

        /// <summary>Restores the macro Fix scene snapshot by jumping directly to the target cue endpoint.</summary>
        public IEnumerator RestoreSnapshot(FixSnapshotDto dto)
        {
            if (dto == null || string.IsNullOrEmpty(dto.state))
            {
                yield break;
            }

            if (!Enum.TryParse<FixSceneMode>(dto.state, out var mode))
            {
                Debug.LogWarning($"[FixSystemCenter] Could not parse FixSceneMode: {dto.state}");
                yield break;
            }

            yield return Director.TransitionToImmediate(mode, dto.args ?? "");
            IsDirectorReady = true;
        }
    }
}