using System;
using Continentis.MainGame.Character;
using SLSFramework.General;
using SLSFramework.UModAssistance;
using UniRx;
using UnityEngine;

namespace Continentis.MainGame.Commands
{
    public class Cmd_PlaySFX : CommandBase
    {
        public AudioClip sfxClip;
        public bool useTargetPosition;
        public Vector3 playPosition;
        public Vector3 playPositionOffset;
        public float volume;
        public float overrideDuration;
        public bool willWaitUntilFinish;
        
        public Cmd_PlaySFX(string sfxClipID, bool useTargetPosition = true, Vector3 positionOrOffset = default,
            bool willWaitUntilFinish = false, float volume = 1f, float overrideDuration = -1f)
        {
            this.sfxClip = ModManager.GetAsset<AudioClip>(sfxClipID);
            this.useTargetPosition = useTargetPosition;
            
            if (useTargetPosition)
            {
                this.playPosition = Vector3.zero;
                this.playPositionOffset = positionOrOffset;
            }
            else
            {
                this.playPosition = positionOrOffset;
                this.playPositionOffset = Vector3.zero;
            }
            
            this.volume = volume;
            this.overrideDuration = overrideDuration;
            this.willWaitUntilFinish = willWaitUntilFinish;
        }
        
        protected override IObservable<Unit> OnExecute(CommandContext outerContext)
        {
            if (sfxClip == null)
            {
                Debug.LogWarning("SFX Clip is null.");
                return Observable.Return(Unit.Default);
            }

            if (useTargetPosition)
            {
                if (selfContext.context["Target"] is CharacterBase character)
                {
                    playPosition = character.characterView.centerPoint.transform.position;
                }
            }

            AudioManager.PlaySFX(sfxClip, playPosition + playPositionOffset, volume);
            float sfxDuration = overrideDuration > 0 ? overrideDuration : sfxClip.length;

            if (willWaitUntilFinish)
            {
                return Observable.Timer(TimeSpan.FromSeconds(sfxDuration)).AsUnitObservable();
            }
            else
            {
                return Observable.Return(Unit.Default);
            }
        }
    }
}