/**
  * A component to reset the parent to its previous state after some time passes
  */
/datum/component/dejavu
	/// The turf the parent was on when this components was applied, they get moved back here after the duration
	var/turf/starting_turf
	/// Determined by the type of the parent so different behaviours can happen per type
	var/rewind_type
	/// How many rewinds will happen before the effect ends
	var/rewinds_remaining
	/// How long to wait between each rewind
	var/rewind_interval

	/// The starting value of clone loss at the beginning of the effect
	var/clone_loss = 0
	/// The starting value of toxin loss at the beginning of the effect
	var/tox_loss = 0
	/// The starting value of oxygen loss at the beginning of the effect
	var/oxy_loss = 0
	/// The starting value of brain loss at the beginning of the effect
	var/brain_loss = 0
	/// The starting value of brute loss at the beginning of the effect
	/// This only applies to simple animals
	var/brute_loss
	/// The starting value of integrity at the beginning of the effect
	/// This only applies to objects
	var/integrity
	/// A list of body parts saved at the beginning of the effect
	var/list/datum/saved_bodypart/saved_bodyparts

/datum/component/dejavu/Initialize(rewinds = 1, interval = 10 SECONDS)
	if(!isatom(parent))
		return COMPONENT_INCOMPATIBLE

	starting_turf = get_turf(parent)
	rewinds_remaining = rewinds
	rewind_interval = interval

	if(isliving(parent))
		var/mob/living/L = parent
		clone_loss = L.getCloneLoss()
		tox_loss = L.getToxLoss()
		oxy_loss = L.getOxyLoss()
		brain_loss = L.getOrganLoss(ORGAN_SLOT_BRAIN)
		rewind_type = .proc/rewind_living

	if(iscarbon(parent))
		var/mob/living/carbon/C = parent
		saved_bodyparts = C.save_bodyparts()
		rewind_type = .proc/rewind_carbon

	else if(isanimal(parent))
		var/mob/living/simple_animal/M = parent
		brute_loss = M.bruteloss
		rewind_type = .proc/rewind_animal

	else if(isobj(parent))
		var/obj/O = parent
		integrity = O.obj_integrity
		rewind_type = .proc/rewind_obj

	addtimer(CALLBACK(src, rewind_type), rewind_interval)

/datum/component/dejavu/Destroy()
	starting_turf = null
	saved_bodyparts = null
	return ..()

/datum/component/dejavu/proc/rewind()
	to_chat(parent, "<span class=notice>You remember a time not so long ago...</span>")

	//comes after healing so new limbs comically drop to the floor
	if(starting_turf)
		var/atom/movable/master = parent
		master.forceMove(starting_turf)

	rewinds_remaining --
	if(rewinds_remaining)
		addtimer(CALLBACK(src, rewind_type), rewind_interval)
	else
		to_chat(parent, "<span class=notice>But the memory falls out of your reach.</span>")
		qdel(src)

/datum/component/dejavu/proc/rewind_living()
	var/mob/living/master = parent
	master.setCloneLoss(clone_loss)
	master.setToxLoss(tox_loss)
	master.setOxyLoss(oxy_loss)
	master.setOrganLoss(ORGAN_SLOT_BRAIN, brain_loss)
	rewind()

/datum/component/dejavu/proc/rewind_carbon()
	if(saved_bodyparts)
		var/mob/living/carbon/master = parent
		master.apply_saved_bodyparts(saved_bodyparts)
	rewind_living()

/datum/component/dejavu/proc/rewind_animal()
	var/mob/living/simple_animal/master = parent
	master.bruteloss = brute_loss
	master.updatehealth()
	rewind_living()

/datum/component/dejavu/proc/rewind_obj()
	var/obj/master = parent
	master.obj_integrity = integrity
	rewind()