#define TIME_LEFT (SSshuttle.emergency.timeLeft())
#define ENGINES_START_TIME 100
#define ENGINES_STARTED (SSshuttle.emergency.mode == SHUTTLE_IGNITING)
#define IS_DOCKED (SSshuttle.emergency.mode == SHUTTLE_DOCKED || (ENGINES_STARTED))

/obj/machinery/computer/emergency_shuttle
	name = "emergency shuttle console"
	desc = "For shuttle control."
	icon_screen = "shuttle"
	icon_keyboard = "tech_key"
	var/auth_need = 3
	var/list/authorized = list()

/obj/machinery/computer/emergency_shuttle/attackby(obj/item/I, mob/user,params)
	if(istype(I, /obj/item/weapon/card/id))
		say("Please equip your ID card into your ID slot to authenticate.")
	. = ..()

/obj/machinery/computer/emergency_shuttle/ui_interact(mob/user, ui_key = "main", datum/tgui/ui = null, force_open = 0, datum/tgui/master_ui = null, datum/ui_state/state = GLOB.human_adjacent_state)

	ui = SStgui.try_update_ui(user, src, ui_key, ui, force_open)
	if(!ui)
		ui = new(user, src, ui_key, "emergency_shuttle_console", name,
			400, 400, master_ui, state)
		ui.open()

/obj/machinery/computer/emergency_shuttle/ui_data()
	var/list/data = list()

	data["timer_str"] = SSshuttle.emergency.getTimerStr()
	data["engines_started"] = ENGINES_STARTED
	data["authorizations_remaining"] = max((auth_need - authorized.len), 0)
	var/list/A = list()
	for(var/i in authorized)
		var/obj/item/weapon/card/id/ID = i
		var/name = ID.registered_name
		var/job = ID.assignment

		if(emagged)
			name = Gibberish(name, 0)
			job = Gibberish(job, 0)
		A += list(list("name" = name, "job" = job))
	data["authorizations"] = A

	data["enabled"] = (IS_DOCKED && !ENGINES_STARTED)
	data["emagged"] = emagged
	return data

/obj/machinery/computer/emergency_shuttle/ui_act(action, params, datum/tgui/ui)
	if(..())
		return
	if(ENGINES_STARTED) // past the point of no return
		return
	if(!IS_DOCKED) // shuttle computer only has uses when onstation
		return

	var/mob/user = usr
	. = FALSE

	var/obj/item/weapon/card/id/ID = user.get_idcard()

	if(!ID)
		to_chat(user, "<span class='warning'>You don't have an ID.</span>")
		return

	if(!(GLOB.access_heads in ID.access))
		to_chat(user, "<span class='warning'>The access level of your card is not high enough.</span>")
		return

	var/old_len = authorized.len

	switch(action)
		if("authorize")
			. = authorize(user)

		if("repeal")
			authorized -= ID

		if("abort")
			if(authorized.len)
				// Abort. The action for when heads are fighting over whether
				// to launch early.
				authorized.Cut()
				. = TRUE

	if((old_len != authorized.len) && !ENGINES_STARTED)
		var/alert = (authorized.len > old_len)
		var/repeal = (authorized.len < old_len)
		var/remaining = auth_need - authorized.len
		if(authorized.len && remaining)
			minor_announce("[remaining] authorizations needed until shuttle is launched early", null, alert)
		if(repeal)
			minor_announce("Early launch authorization revoked, [remaining] authorizations needed")

/obj/machinery/computer/emergency_shuttle/proc/authorize(mob/user, source)
	var/obj/item/weapon/card/id/ID = user.get_idcard()

	if(ID in authorized)
		return FALSE
	for(var/i in authorized)
		var/obj/item/weapon/card/id/other = i
		if(other.registered_name == ID.registered_name)
			return FALSE // No using IDs with the same name

	authorized += ID

	message_admins("[key_name_admin(user.client)] \
		(<A HREF='?_src_=holder;adminmoreinfo=\ref[user]'>?</A>) \
		(<A HREF='?_src_=holder;adminplayerobservefollow=\ref[user]'>FLW</A>) \
		has authorized early shuttle launch", 0, 1)
	log_game("[key_name(user)] has authorized early shuttle launch in \
		([x],[y],[z])")
	// Now check if we're on our way
	. = TRUE
	process()

/obj/machinery/computer/emergency_shuttle/process()
	// Launch check is in process in case auth_need changes for some reason
	// probably external.
	. = FALSE
	if(!SSshuttle.emergency)
		return

	if(SSshuttle.emergency.mode == SHUTTLE_STRANDED)
		authorized.Cut()
		emagged = FALSE

	if(ENGINES_STARTED || (!IS_DOCKED))
		return .

	// Check to see if we've reached criteria for early launch
	if((authorized.len >= auth_need) || emagged)
		// shuttle timers use 1/10th seconds internally
		SSshuttle.emergency.setTimer(ENGINES_START_TIME)
		var/system_error = emagged ? "SYSTEM ERROR:" : null
		minor_announce("The emergency shuttle will launch in \
			[TIME_LEFT] seconds", system_error, alert=TRUE)
		. = TRUE

/obj/machinery/computer/emergency_shuttle/emag_act(mob/user)
	// How did you even get on the shuttle before it go to the station?
	if(!IS_DOCKED)
		return

	if(emagged || ENGINES_STARTED)	//SYSTEM ERROR: THE SHUTTLE WILL LA-SYSTEM ERROR: THE SHUTTLE WILL LA-SYSTEM ERROR: THE SHUTTLE WILL LAUNCH IN 10 SECONDS
		to_chat(user, "<span class='warning'>The shuttle is already about to launch!</span>")
		return

	var/time = TIME_LEFT
	message_admins("[key_name_admin(user.client)] \
	(<A HREF='?_src_=holder;adminmoreinfo=\ref[user]'>?</A>) \
	(<A HREF='?_src_=holder;adminplayerobservefollow=\ref[user]'>FLW</A>) \
	has emagged the emergency shuttle [time] seconds before launch.", 0, 1)
	log_game("[key_name(user)] has emagged the emergency shuttle in \
		[COORD(src)] [time] seconds before launch.")
	emagged = TRUE
	var/datum/species/S = new
	for(var/i in 1 to 10)
		// the shuttle system doesn't know who these people are, but they
		// must be important, surely
		var/obj/item/weapon/card/id/ID = new(src)
		var/datum/job/J = pick(SSjob.occupations)
		ID.registered_name = S.random_name(pick(MALE, FEMALE))
		ID.assignment = J.title

		authorized += ID

	process()

/obj/machinery/computer/emergency_shuttle/Destroy()
	// Our fake IDs that the emag generated are just there for colour
	// They're not supposed to be accessible

	for(var/obj/item/weapon/card/id/ID in src)
		qdel(ID)
	if(authorized && authorized.len)
		authorized.Cut()
	authorized = null

	. = ..()

/obj/docking_port/mobile/emergency
	name = "emergency shuttle"
	id = "emergency"

	dwidth = 9
	width = 22
	height = 11
	dir = EAST
	port_angle = -90
	roundstart_move = "emergency_away"
	var/sound_played = 0 //If the launch sound has been sent to all players on the shuttle itself

/obj/docking_port/mobile/emergency/canDock(obj/docking_port/stationary/S)
	return SHUTTLE_CAN_DOCK //If the emergency shuttle can't move, the whole game breaks, so it will force itself to land even if it has to crush a few departments in the process

/obj/docking_port/mobile/emergency/register()
	. = ..()
	SSshuttle.emergency = src

/obj/docking_port/mobile/emergency/Destroy(force)
	if(force)
		// This'll make the shuttle subsystem use the backup shuttle.
		if(src == SSshuttle.emergency)
			// If we're the selected emergency shuttle
			SSshuttle.emergencyDeregister()

	. = ..()

/obj/docking_port/mobile/emergency/request(obj/docking_port/stationary/S, coefficient=1, area/signalOrigin, reason, redAlert)
	var/call_time = SSshuttle.emergencyCallTime * coefficient
	switch(mode)
		// The shuttle can not normally be called while "recalling", so
		// if this proc is called, it's via admin fiat
		if(SHUTTLE_RECALL, SHUTTLE_IDLE, SHUTTLE_CALL)
			mode = SHUTTLE_CALL
			setTimer(call_time)
		else
			return

	SSshuttle.emergencyCallAmount++

	if(prob(70))
		SSshuttle.emergencyLastCallLoc = signalOrigin
	else
		SSshuttle.emergencyLastCallLoc = null

	priority_announce("The emergency shuttle has been called. [redAlert ? "Red Alert state confirmed: Dispatching priority shuttle. " : "" ]It will arrive in [timeLeft(600)] minutes.[reason][SSshuttle.emergencyLastCallLoc ? "\n\nCall signal traced. Results can be viewed on any communications console." : "" ]", null, 'sound/AI/shuttlecalled.ogg', "Priority")

/obj/docking_port/mobile/emergency/cancel(area/signalOrigin)
	if(mode != SHUTTLE_CALL)
		return

	invertTimer()
	mode = SHUTTLE_RECALL

	if(prob(70))
		SSshuttle.emergencyLastCallLoc = signalOrigin
	else
		SSshuttle.emergencyLastCallLoc = null
	priority_announce("The emergency shuttle has been recalled.[SSshuttle.emergencyLastCallLoc ? " Recall signal traced. Results can be viewed on any communications console." : "" ]", null, 'sound/AI/shuttlerecalled.ogg', "Priority")

/obj/docking_port/mobile/emergency/proc/is_hijacked()
	var/has_people = FALSE

	for(var/mob/living/player in GLOB.player_list)
		if(player.mind)
			if(player.stat != DEAD)
				if(issilicon(player)) //Borgs are technically dead anyways
					continue
				if(isanimal(player)) //animals don't count
					continue
				if(isbrain(player)) //also technically dead
					continue
				if(get_area(player) == areaInstance)
					has_people = TRUE
					var/location = get_turf(player.mind.current)
					if(!(player.mind.special_role == "traitor" || player.mind.special_role == "Syndicate") && !istype(location, /turf/open/floor/plasteel/shuttle/red) && !istype(location, /turf/open/floor/mineral/plastitanium/brig))
						return FALSE

	return has_people

/obj/docking_port/mobile/emergency/check()
	if(!timer)
		return
	var/time_left = timeLeft(1)

	// The emergency shuttle doesn't work like others so this
	// ripple check is slightly different
	if(!ripples.len && (time_left <= SHUTTLE_RIPPLE_TIME) && ((mode == SHUTTLE_CALL) || (mode == SHUTTLE_ESCAPE)))
		var/destination
		if(mode == SHUTTLE_CALL)
			destination = SSshuttle.getDock("emergency_home")
		else if(mode == SHUTTLE_ESCAPE)
			destination = SSshuttle.getDock("emergency_away")
		create_ripples(destination)

	switch(mode)
		if(SHUTTLE_RECALL)
			if(time_left <= 0)
				mode = SHUTTLE_IDLE
				timer = 0
		if(SHUTTLE_CALL)
			if(time_left <= 0)
				//move emergency shuttle to station
				if(dock(SSshuttle.getDock("emergency_home")))
					setTimer(20)
					return
				mode = SHUTTLE_DOCKED
				setTimer(SSshuttle.emergencyDockTime)
				send2irc("Server", "The Emergency Shuttle has docked with the station.")
				priority_announce("The Emergency Shuttle has docked with the station. You have [timeLeft(600)] minutes to board the Emergency Shuttle.", null, 'sound/AI/shuttledock.ogg', "Priority")
				feedback_add_details("emergency_shuttle", src.name)

				// Gangs only have one attempt left if the shuttle has
				// docked with the station to prevent suffering from
				// endless dominator delays
				for(var/datum/gang/G in SSticker.mode.gangs)
					if(G.is_dominating)
						G.dom_attempts = 0
					else
						G.dom_attempts = min(1,G.dom_attempts)


		if(SHUTTLE_DOCKED)
			if(time_left <= ENGINES_START_TIME)
				mode = SHUTTLE_IGNITING
				SSshuttle.checkHostileEnvironment()
				if(mode == SHUTTLE_STRANDED)
					return
				for(var/A in SSshuttle.mobile)
					var/obj/docking_port/mobile/M = A
					if(M.launch_status == UNLAUNCHED) //Pods will not launch from the mine/planet, and other ships won't launch unless we tell them to.
						M.check_transit_zone()

		if(SHUTTLE_IGNITING)
			var/success = TRUE
			SSshuttle.checkHostileEnvironment()
			if(mode == SHUTTLE_STRANDED)
				return

			success &= (check_transit_zone() == TRANSIT_READY)
			for(var/A in SSshuttle.mobile)
				var/obj/docking_port/mobile/M = A
				if(M.launch_status == UNLAUNCHED)
					success &= (M.check_transit_zone() == TRANSIT_READY)
			if(!success)
				setTimer(ENGINES_START_TIME)

			if(time_left <= 50 && !sound_played) //4 seconds left:REV UP THOSE ENGINES BOYS. - should sync up with the launch
				sound_played = 1 //Only rev them up once.
				var/list/areas = list()
				for(var/area/shuttle/escape/E in GLOB.sortedAreas)
					areas += E
				hyperspace_sound(HYPERSPACE_WARMUP, areas)

			if(time_left <= 0 && !SSshuttle.emergencyNoEscape)
				//move each escape pod (or applicable spaceship) to its corresponding transit dock
				for(var/A in SSshuttle.mobile)
					var/obj/docking_port/mobile/M = A
					if(M.launch_status == UNLAUNCHED) //Pods will not launch from the mine/planet, and other ships won't launch unless we tell them to.
						M.launch_status = ENDGAME_LAUNCHED
						M.enterTransit()

				//now move the actual emergency shuttle to its transit dock
				var/list/areas = list()
				for(var/area/shuttle/escape/E in GLOB.sortedAreas)
					areas += E
				hyperspace_sound(HYPERSPACE_LAUNCH, areas)
				enterTransit()
				mode = SHUTTLE_ESCAPE
				launch_status = ENDGAME_LAUNCHED
				setTimer(SSshuttle.emergencyEscapeTime)
				priority_announce("The Emergency Shuttle has left the station. Estimate [timeLeft(600)] minutes until the shuttle docks at Central Command.", null, null, "Priority")

		if(SHUTTLE_STRANDED)
			SSshuttle.checkHostileEnvironment()

		if(SHUTTLE_ESCAPE)
			if(sound_played && time_left <= HYPERSPACE_END_TIME)
				var/list/areas = list()
				for(var/area/shuttle/escape/E in GLOB.sortedAreas)
					areas += E
				hyperspace_sound(HYPERSPACE_END, areas)
			if(areaInstance.parallax_movedir && time_left <= PARALLAX_LOOP_TIME)
				parallax_slowdown()
				for(var/A in SSshuttle.mobile)
					var/obj/docking_port/mobile/M = A
					if(M.launch_status == ENDGAME_LAUNCHED)
						if(istype(M, /obj/docking_port/mobile/pod))
							M.parallax_slowdown()

			if(time_left <= 0)
				//move each escape pod to its corresponding escape dock
				for(var/A in SSshuttle.mobile)
					var/obj/docking_port/mobile/M = A
					if(M.launch_status == ENDGAME_LAUNCHED)
						if(istype(M, /obj/docking_port/mobile/pod))
							M.dock(SSshuttle.getDock("[M.id]_away")) //Escape pods dock at centcomm
						else
							continue //Mapping a new docking point for each ship mappers could potentially want docking with centcomm would take up lots of space, just let them keep flying off into the sunset for their greentext

				// now move the actual emergency shuttle to centcomm
				// unless the shuttle is "hijacked"
				var/destination_dock = "emergency_away"
				if(is_hijacked())
					destination_dock = "emergency_syndicate"
					minor_announce("Corruption detected in \
						shuttle navigation protocols. Please contact your \
						supervisor.", "SYSTEM ERROR:", alert=TRUE)

				dock_id(destination_dock)
				mode = SHUTTLE_ENDGAME
				timer = 0

/obj/docking_port/mobile/pod
	name = "escape pod"
	id = "pod"
	dwidth = 1
	width = 3
	height = 4
	launch_status = UNLAUNCHED

/obj/docking_port/mobile/pod/request()
	var/obj/machinery/computer/shuttle/S = getControlConsole()

	if(GLOB.security_level == SEC_LEVEL_RED || GLOB.security_level == SEC_LEVEL_DELTA || (S && S.emagged))
		if(launch_status == UNLAUNCHED)
			launch_status = EARLY_LAUNCHED
			return ..()
	else
		to_chat(usr, "<span class='warning'>Escape pods will only launch during \"Code Red\" security alert.</span>")
		return 1

/obj/docking_port/mobile/pod/New()
	..()
	if(id == "pod")
		WARNING("[type] id has not been changed from the default. Use the id convention \"pod1\" \"pod2\" etc.")

/obj/docking_port/mobile/pod/cancel()
	return

/obj/machinery/computer/shuttle/pod
	name = "pod control computer"
	admin_controlled = 1
	shuttleId = "pod"
	possible_destinations = "pod_asteroid"
	icon = 'icons/obj/terminals.dmi'
	icon_state = "dorm_available"
	light_color = LIGHT_COLOR_BLUE
	density = 0
	clockwork = TRUE //it'd look weird

/obj/machinery/computer/shuttle/pod/update_icon()
	return

/obj/machinery/computer/shuttle/pod/emag_act(mob/user)
	if(!emagged)
		emagged = TRUE
		to_chat(user, "<span class='warning'>You fry the pod's alert level checking system.</span>")

/obj/docking_port/stationary/random
	name = "escape pod"
	id = "pod"
	dwidth = 1
	width = 3
	height = 4
	var/target_area = /area/lavaland/surface/outdoors
	var/edge_distance = 16
	// Minimal distance from the map edge, setting this too low can result in shuttle landing on the edge and getting "sliced"

/obj/docking_port/stationary/random/Initialize(mapload)
	..()
	if(!mapload)
		return

	var/list/turfs = get_area_turfs(target_area)
	var/turf/T = pick(turfs)

	while(turfs.len)
		if(T.x<edge_distance || T.y<edge_distance || (world.maxx+1-T.x)<edge_distance || (world.maxy+1-T.y)<edge_distance)
			turfs -= T
			T = pick(turfs)
		else
			src.loc = T
			break

//Pod suits/pickaxes


/obj/item/clothing/head/helmet/space/orange
	name = "emergency space helmet"
	icon_state = "syndicate-helm-orange"
	item_state = "syndicate-helm-orange"

/obj/item/clothing/suit/space/orange
	name = "emergency space suit"
	icon_state = "syndicate-orange"
	item_state = "syndicate-orange"
	slowdown = 3

/obj/item/weapon/pickaxe/emergency
	name = "emergency disembarkation tool"
	desc = "For extracting yourself from rough landings."

/obj/item/weapon/storage/pod
	name = "emergency space suits"
	desc = "A wall mounted safe containing space suits. Will only open in emergencies."
	anchored = 1
	density = 0
	icon = 'icons/obj/storage.dmi'
	icon_state = "safe"
	var/unlocked = FALSE

/obj/item/weapon/storage/pod/New()
	..()
	new /obj/item/clothing/head/helmet/space/orange(src)
	new /obj/item/clothing/head/helmet/space/orange(src)
	new /obj/item/clothing/suit/space/orange(src)
	new /obj/item/clothing/suit/space/orange(src)
	new /obj/item/clothing/mask/gas(src)
	new /obj/item/clothing/mask/gas(src)
	new /obj/item/weapon/tank/internals/oxygen/red(src)
	new /obj/item/weapon/tank/internals/oxygen/red(src)
	new /obj/item/weapon/pickaxe/emergency(src)
	new /obj/item/weapon/pickaxe/emergency(src)
	new /obj/item/weapon/survivalcapsule(src)

/obj/item/weapon/storage/pod/attackby(obj/item/weapon/W, mob/user, params)
	return

/obj/item/weapon/storage/pod/MouseDrop(over_object, src_location, over_location)
	if(GLOB.security_level == SEC_LEVEL_RED || GLOB.security_level == SEC_LEVEL_DELTA || unlocked)
		. = ..()
	else
		to_chat(usr, "The storage unit will only unlock during a Red or Delta security alert.")

/obj/item/weapon/storage/pod/attack_hand(mob/user)
	return MouseDrop(user)

/obj/item/weapon/storage/pod/onShuttleMove()
	unlocked = TRUE
	// If the pod was launched, the storage will always open.
	return ..()


/obj/docking_port/mobile/emergency/backup
	name = "backup shuttle"
	id = "backup"
	dwidth = 2
	width = 8
	height = 8
	dir = EAST
	roundstart_move = "backup_away"

/obj/docking_port/mobile/emergency/backup/New()
	// We want to be a valid emergency shuttle
	// but not be the main one, keep whatever's set
	// valid.
	// backup shuttle ignores `timid` because THERE SHOULD BE NO TOUCHING IT
	var/current_emergency = SSshuttle.emergency
	..()
	SSshuttle.emergency = current_emergency
	SSshuttle.backup_shuttle = src

#undef UNLAUNCHED
#undef LAUNCHED
#undef EARLY_LAUNCHED
#undef TIMELEFT
#undef ENGINES_START_TIME
#undef ENGINES_STARTED
#undef IS_DOCKED