// AI EYE
//
// An invisible (no icon) mob that the AI controls to look around the station with.
// It streams chunks as it moves around, which will show it what the AI can and cannot see.

/mob/camera/aiEye
	name = "Inactive AI Eye"
	anchored = TRUE

	var/list/visibleCameraChunks = list()
	var/mob/living/silicon/ai/ai = null
	var/high_res = 0
	glide_size = WORLD_ICON_SIZE //AI eyes are hyperspeed, who knows
	flags = HEAR_ALWAYS | TIMELESS

// Use this when setting the aiEye's location.
// It will also stream the chunk that the new loc is in.

/mob/camera/aiEye/forceMove(atom/destination, step_x = 0, step_y = 0, no_tp = FALSE, harderforce = TRUE, glide_size_override = 0, var/holo_bump = FALSE)
	if(ai)
		var/obj/machinery/hologram/holopad/H
		if(istype(ai.current, /obj/machinery/hologram/holopad))
			H = ai.current
		if(istype(ai.current, /obj/machinery/turret))
			var/obj/machinery/turret/T = ai.current
			T.malf_release_control()
		if(!isturf(ai.loc))
			return
		if(istype(H))
			if(harderforce && H.advancedholo && !holo_bump)  // If we double click while controlling an advanced hologram, remove the hologram.
				H.clear_holo()
				return
			else if(H.advancedholo && !holo_bump) // Otherwise, if we're controlling an advanced hologram, check to see if we can enter the tile normally
				if(destination.density)
					return
				for(var/atom/movable/A in destination)
					if(A.density)
						return

		if(!isturf(destination) && destination)
			for(destination = destination.loc; !isturf(destination); destination = destination.loc);

		forceEnter(destination)

		cameranet.visibility(src)
		if(ai.client && ai.client.eye != src) // Set the eye to us and give the AI the sight & visibility flags it needs.
			ai.client.eye = src
			ai.change_sight(adding = SEE_TURFS|SEE_MOBS|SEE_OBJS)
			ai.see_in_dark = 8
			ai.see_invisible = SEE_INVISIBLE_LEVEL_ONE

		if(istype(H) && !holo_bump)  // move our hologram to our new location (unless our advanced hologram was bumped, in which case we're moving to the hologram)
			H.move_hologram(harderforce)

		if(ai.camera_light_on)
			ai.light_cameras()

		if (ai.station_holomap)
			ai.station_holomap.update_holomap(TRUE)

/mob/camera/aiEye/Move(NewLoc, Dir = 0, step_x = 0, step_y = 0, glide_size_override = 0)
	return 0

/mob/camera/aiEye/on_see(var/message, var/blind_message, var/drugged_message, var/blind_drugged_message, atom/A) //proc for eye seeing visible messages from atom A, only possible with the high_res camera module
	if(!high_res)
		return
	if(ai && cameranet.checkCameraVis(A)) //check it's actually in view of a camera
		ai.show_message( message, 1, blind_message, 2)

//An AI eyeobj mob cant hear unless it updates high_res with a Malf Module
/mob/camera/aiEye/Hear(var/datum/speech/speech, var/rendered_speech="")
	if(!high_res)
		return
	if(speech.frequency) //HOW CAN IT POSSIBLY READ LIPS THROUGH RADIOS
		return

	var/mob/M = speech.speaker
	if(istype(M))
		if(ishuman(M))
			var/mob/living/carbon/human/H = speech.speaker
			if(H.check_body_part_coverage(MOUTH)) //OR MASKS
				return
		ai.Hear(speech, rendered_speech) //He can only read the lips of mobs, I cant think of objects using lips


// AI MOVEMENT


/mob/living/silicon/ai/Destroy()
	if(eyeobj)
		eyeobj.ai = null
		QDEL_NULL(eyeobj) // No AI, no Eye
	..()

/atom/proc/move_camera_by_click()
	if(istype(usr, /mob/living/silicon/ai))
		var/mob/living/silicon/ai/AI = usr
		if(AI.eyeobj && AI.client.eye == AI.eyeobj)
			AI.stop_ai_tracking()
			if (isturf(src.loc) || isturf(src))
				AI.eyeobj.forceMove(src)

// This will move the AIEye. It will also cause lights near the eye to light up, if toggled.
// This is handled in the proc below this one.

/client/proc/AIMove(n, direct, var/mob/living/silicon/ai/user)

	var/initial = initial(user.sprint)
	var/max_sprint = 50

	var/obj/machinery/turret/T = user.current
	var/obj/machinery/hologram/holopad/H = user.current

	if(istype(T))
		T.malf_release_control()

	if((user.cooldown && user.cooldown < world.timeofday) || istype(H)) // 3 seconds
		user.sprint = initial

	if(istype(H))
		CAN_MOVE_DIAGONALLY = FALSE
		user.eyeobj.glide_size = DELAY2GLIDESIZE(1)
		user.delayNextMove(1)
	else
		user.eyeobj.glide_size = WORLD_ICON_SIZE
		CAN_MOVE_DIAGONALLY = TRUE

	for(var/i = 0; i < max(user.sprint, initial); i += 20)
		var/turf/step = get_turf(get_step(user.eyeobj, direct))
		if(step)
			if (user.client.prefs.get_pref(/datum/preference_setting/toggle/stumble) && ((world.time - user.last_movement) > 4))
				user.delayNextMove(3)	//if set, delays the second step when a mob starts moving to attempt to make precise high ping movement easier
			else if(istype(H) && H.advancedholo)
				H.holo.dir = direct
				if(step.density)
					return
				for(var/atom/movable/A in step)
					if(A.density)
						if(A.flow_flags&ON_BORDER)
							if(!A.Cross(H.holo, H.holo.loc))
								return
						else
							return
				user.eyeobj.forceMove(destination = step, harderforce = FALSE)
			else
				user.eyeobj.forceMove(destination = step, harderforce = FALSE)
	user.last_movement=world.time

	user.cooldown = world.timeofday + 5
	if(user.acceleration && !istype(H))
		user.sprint = min(user.sprint + 0.5, max_sprint)
	else
		user.sprint = initial

	user.stop_ai_tracking()

	//user.unset_machine() //Uncomment this if it causes problems.
	//user.lightNearbyCamera()

/mob/living/silicon/ai/proc/view_core()

	var/obj/machinery/hologram/holopad/H  = current
	if(istype(H))
		H.clear_holo()
	var/obj/machinery/turret/T = current
	if(istype(T))
		T.malf_release_control()

	current = null
	stop_ai_tracking()
	unset_machine()

	if(!loc)
		return

	if(!eyeobj)
		make_eyeobj()
	else
		eyeobj.forceMove(loc)

	if(client && client.eye) // Reset these things so the AI can't view through walls and stuff.
		client.eye = src
		change_sight(removing = SEE_TURFS | SEE_MOBS | SEE_OBJS)
		see_in_dark = 0
		see_invisible = SEE_INVISIBLE_LIVING

	for(var/datum/camerachunk/c in eyeobj.visibleCameraChunks)
		c.remove(eyeobj)

/mob/living/silicon/ai/proc/make_eyeobj()
	eyeobj = new(loc)
	eyeobj.ai = src
	refresh_eyeobj_name()
	eyeobj.forceMove(loc)

/mob/living/silicon/ai/proc/refresh_eyeobj_name()
	eyeobj.name = "[name] (AI Eye)"

/mob/living/silicon/ai/proc/jump_to_area(var/area/A)
	if(!A)
		return
	if(!eyeobj)
		make_eyeobj()
	var/list/turfs = list()
	for(var/turf/T in A)
		turfs.Add(T)
	var/turf/T = pick(turfs)
	if(!T)
		to_chat(src, "<span class='danger'>Nowhere to jump to!</span>")
		return
	stop_ai_tracking()
	eyeobj.forceMove(T)

/mob/living/silicon/ai/proc/toggleholopadoverlays() //shows holopads above all static
	if (!holopadoverlays.len)
		for(var/obj/machinery/hologram/holopad/holopads in machines)
			var/image/holopadoverlay = image('icons/obj/stationobjs.dmi',holopads,"holopad0", ABOVE_HUD_PLANE)
			holopadoverlay.plane = ABOVE_HUD_PLANE
			if(client)
				client.images += holopadoverlay
				holopadoverlays += holopadoverlay
	else
		if(client)
			for(var/image/ol in holopadoverlays)
				client.images -= ol
			holopadoverlays.Cut()


/mob/living/silicon/ai/verb/toggle_acceleration()
	set category = "AI Commands"
	set name = "Toggle Camera Acceleration"

	acceleration = !acceleration
	to_chat(usr, "Camera acceleration has been toggled [acceleration ? "on" : "off"].")