using TriInspector;
using UnityEngine;

namespace R0bbie.Timeline
{
    /// <summary>
    /// Wait for an action to be completed, allowing to trigger an incorrect step
    /// </summary>
    [AddComponentMenu("Timeline/StepSwitches/Correct Action (Step Switch)")]
    public class CorrectActionStepSwitch : StepSwitch
    {
        [System.Serializable]
        struct ActionSwitch
        {
            public TimelineTrigger trigger;
            public Step stepOption;
        }
        
        // Exposed Variables
        
        [Title("Correct Action Step Switch")] 
        [SerializeField] ActionSwitch incorrectStep;
        [SerializeField] bool keepPlaying;
        [Space(10)]
        [SerializeField] ActionSwitch correctStep;
        
        
        // Private variables

        bool incorrectPlayed;
        bool correctPlayed;
        
        
        /// <summary>
        /// Init by Timeline
        /// </summary>
        /// <param name="_stepTimeline"></param>
        public override void Init(StepTimeline _stepTimeline)
        {  
            // Setup necessary refs such as parent timeline
            attachedStepTimeline = _stepTimeline;
            
            // Inactive by default
            activeMode = Mode.Inactive;
            
            // Init all step switch options
            if (incorrectStep.stepOption)
                incorrectStep.stepOption.Init(attachedStepTimeline, this);
            incorrectStep.trigger.AddStep(this);
            
            if (correctStep.stepOption)
                correctStep.stepOption.Init(attachedStepTimeline, this);
            correctStep.trigger.AddStep(this);
            
            init = true;
        }
        
        
        /// <summary>
        /// Init switch by StepController
        /// </summary>
        /// <param name="_controller"></param>
        public override void Init(StepController _controller)
        {  
            // Setup necessary refs such as parent controller
            attachedController = _controller;
            
            // Inactive by default
            activeMode = Mode.Inactive;
            
            // Init all step switch options
            if (incorrectStep.stepOption)
                incorrectStep.stepOption.Init(attachedController, this);
            incorrectStep.trigger.AddStep(this);
            
            if (correctStep.stepOption)
                correctStep.stepOption.Init(attachedController, this);
            correctStep.trigger.AddStep(this);
            
            init = true;
        }
        
        
        public override void Play()
        {
            Debug.Log(name + " - Started");
            
            isActive = true;
            waitingForExternalTrigger = true;

            // Wait for event from the player
            activeMode = Mode.WaitingForEvent;
        }
        
        
        /// <summary>
        /// Trigger command received from external TimelineTrigger
        /// </summary>
        public override void TriggerContinue(TimelineTrigger _trigger)
        {
            if (!isActive || activeMode != Mode.WaitingForEvent)
                return;

            if (_trigger == incorrectStep.trigger)
            {
                if (!incorrectPlayed || keepPlaying)
                    PlaySelectedStepOption(incorrectStep.stepOption);

                incorrectPlayed = true;
            }
            else
            {
                // Change the status only if the correct action have been completed
                // If is not completed we still want to be able to receive input from triggers
                activeMode = Mode.PlayingChildStep;

                correctPlayed = true;
                PlaySelectedStepOption(correctStep.stepOption);
            }
        }


        void PlaySelectedStepOption(Step _option)
        {
            activeStepOption = _option;
            
            // Play the selected option, unless it's null (in which case just play next step in timeline)
            if (activeStepOption)
            {
                activeStepOption.Play();
            }
            else
            {
                Debug.Log("The option selected by the step switch was null, so just proceeding to next step in timeline.");
                Continue();
            }
        }


        public override void Continue()
        {
            if (!correctPlayed)
                return;
            
            // If the correct step have been played, then continue to the next step
            base.Continue();
        }
        
        
    }
}