--[[

  ITB (insidethebox) minetest game - Copyright (C) 2017-2018 sofar & nore

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public License
  as published by the Free Software Foundation; either version 2.1
  of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free
  Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  MA 02111-1307 USA

]]--
local S = minetest.get_translator("boxes")
local FE = minetest.formspec_escape

local callback = {}

local function register_teleport(name, def)
	local function teleport_update_particles(pos, pname)
		local tm = math.random(10, 50) / 10
		minetest.add_particlespawner({
			amount = tm * 3,
			time = tm,
			minpos = {x = pos.x - 7/16, y = pos.y - 5/16, z = pos.z - 7/16},
			maxpos = {x = pos.x + 7/16, y = pos.y - 5/16, z = pos.z + 7/16},
			minvel = vector.new(-1, 2, -1),
			maxvel = vector.new(1, 5, 1),
			minacc = vector.new(0, -9.81, 0),
			maxacc = vector.new(0, -9.81, 0),
			--collisiondetection = true,
			--collision_removal = true,
			texture = def.tiles[1],
			playername = pname,
		})
		minetest.get_node_timer(pos):start(tm)
	end

	def.drawtype = "nodebox"
	def.node_box = {
		type = "fixed",
		fixed = {{-7/16, -1/2, -7/16, 7/16, -7/16, 7/16}},
	}
	def.paramtype = "light"
	def.groups = def.groups or {}
	def.sounds = def.sounds or sounds.metal
	def.on_construct = function(pos)
		teleport_update_particles(pos, nil)
	end
	def.on_timer = function(pos)
		teleport_update_particles(pos, nil)
	end
	def.after_box_construct = function(pos)
		teleport_update_particles(pos, nil)
	end

	-- on_teleport: return true to nudge
	-- player back off the teleport
	--
	-- return true only when displaying a formspec or
	-- when the player is not teleported into a box
	local on_teleport = def.on_teleport
	def.on_walk_over = function(pos, node, player)
		if on_teleport(pos, node, player) then
			local dir = player:get_look_dir()
			dir.y = 0
			player:set_pos(vector.subtract(pos, vector.normalize(dir)))
		end
	end

	minetest.register_node(name, def)
end

local function series_progress_reset(player, id)
	-- show a formspec to the user where they can explicitly reset
	-- series progress, and explain why they might not want to do so

	local name = player:get_player_name()

	--FIXME change this to a bunch of labels.
	fsc.show(name,
		"size[10,7]" ..
		-- TODO: Make translatable
		"textlist[0.5,0.5;8.7,4.5;restettext;You have already completed this series.,," ..
		"If you want\\, you can reset your progress for this series," ..
		"and start it again from the start.,," ..
		"Or\\, you can wait for more boxes to get added to this," ..
		"series later\\, and come back regularly to check if that," ..
		"has happened.;0;0]" ..
		"button[0.6,5.5;4.4,1.5;btn_cancel;"..
			FE(S("I'll come back later"))..
		"]" ..
		"button[5.0,5.5;4.4,1.5;btn_reset;"..
			FE(S("Reset progress"))..
		"]",
		id,
		callback.progress_reset
	)
end

function callback.progress_reset(player, fields, context)
	local name = player:get_player_name()

	if not fields.btn_reset then
		return true
	end

	-- reset series progress
	local pmeta = db.player_get_meta(name)
	pmeta.series_progress[context] = nil
	db.player_set_meta(name, pmeta)

	minetest.chat_send_player(player:get_player_name(),
		S("Progress for series @1 was reset.", context))

	return true
end

local function series_enter_choice(player, id, b_sel)
	-- Show a formspec allowing the user to choose what box they want to enter
	local name = player:get_player_name()

	local f = "size[6,9]"

	f = f .. "textlist[0.2,0.5;5.4,7.4;in_series;"
	local boxes = db.series_get_boxes(id)
	local player_id = db.player_get_id(name)
	local completed = db.player_get_series_boxes(player_id, id)
	local complete = {}
	for _, v in ipairs(completed) do
		complete[v] = true
	end
	for k, box_id in pairs(boxes) do
		local bmeta = db.box_get_meta(box_id)
		local bname = bmeta.meta.box_name or "[unnamed]"
		local color = "#c0c0c0"
		if complete[box_id] then
			color = "#00ff00"
		end
		f = f .. color
		f = f .. minetest.formspec_escape("[" .. box_id .. "] " .. bname)
		if k ~= #boxes then
			f = f .. ","
		end
	end
	f = f .. ";]"
	f = f .. "button[1.4,8.1;3.4,1;enter;"..FE(S("Play")).."]"

	fsc.show(name, f, {id = id, boxes = boxes, b_sel = b_sel}, callback.enter_choice)
end

function callback.enter_choice(player, fields, context)
	local name = player:get_player_name()

	if fields.in_series then
		local i = tonumber(string.match(fields.in_series, ":(%d+)", 1))
		if i == nil then
			minetest.log("error", "callback.enter_choice: " .. dump(fields.in_series))
			return
		end
		if i > #context.boxes or i < 1 then
			return true
		end
		series_enter_choice(player, context.id, i)
		return
	end

	if fields.enter then
		if not context.id or not context.b_sel then
			return true
		end
		local i = context.b_sel
		local id = context.id
		local pmeta = db.player_get_meta(name)
		pmeta.series_progress[id] = i
		db.player_set_meta(name, pmeta)
		boxes.next_series(player, id, true)
		return true
	end
end

register_teleport("boxes:enter_teleport", {
	description = S("Box enter teleporter"),
	tiles = {"diamond.png"},
	on_teleport = function(pos, node, player)
		local meta = minetest.get_meta(pos)
		local id = meta:get_int("box")
		local is_series = meta:get_int("is_series")
		if is_series == 1 then
			local smeta = db.series_get_meta(id)
			if not smeta then
				return
			end
			if smeta.meta.type == db.SEQUENTIAL_TYPE then
				if not boxes.next_series(player, id, true) then
					series_progress_reset(player, id)
					return true
				end
			elseif smeta.meta.type == db.RANDOM_ACCESS_TYPE then
				series_enter_choice(player, id)
				return true
			end

			return
		elseif is_series == 2 then
			if not ranks or not ranks.categories then
				minetest.log("error", "ranks mod not found, can't use category teleport")
				return true
			end

			-- get the list of boxes for category (id)
			local catboxes = ranks.categories[tostring(id)]

			-- first, find first unplayed box in dynamic series
			local name = player:get_player_name()
			local player_id = db.player_get_id(name)
			local playerboxes = db.player_get_completed_boxes(player_id)
			for _, catbox in pairs(catboxes) do
				if not playerboxes[tonumber(catbox)] then
					local bmeta = db.box_get_meta(tonumber(catbox))
					if bmeta.type ~= db.BOX_TYPE then
						return true
					end

					boxes.open_box(player, {0, tonumber(catbox), 1})
					return
				end
			end

			-- fallback to a random one ?
			-- FIXME implement
			minetest.chat_send_player(name,
				S("You've completed every box in this category! Come back later to see if there are new boxes in it.")
			)
			return true
		end
		local bmeta = db.box_get_meta(id)
		if bmeta.type ~= db.BOX_TYPE then
			return
		end
		boxes.open_box(player, {0, id, 1})
	end,
	on_punch = function(pos, node, puncher, pointed_thing)
		if not puncher or not minetest.check_player_privs(puncher, "server") then
			return
		end
		local meta = minetest.get_meta(pos)
		if puncher:get_player_control().sneak then
			-- 0: a box portal
			-- 1: a numbered series portal
			-- 2: a category portal
			local is_series = meta:get_int("is_series") + 1
			if is_series > 2 then
				is_series = 0
			end
			meta:set_int("is_series", is_series)
			local smsg
			if is_series == 0 then
				smsg = S("Teleporter is a box portal.")
			elseif is_series == 1 then
				smsg = S("Teleporter is a numbered series portal.")
			else
				smsg = S("Teleporter is a category portal.")
			end
			minetest.chat_send_player(puncher:get_player_name(), smsg)
			return
		end
		local id = meta:get_int("box")
		local newid = id + 1
		local is_series = meta:get_int("is_series")
		if is_series == 1 and not db.box_exists(newid) then
			newid = 0
		end
		meta:set_int("box", newid)
		minetest.chat_send_player(puncher:get_player_name(), S("Destination set to @1.", newid))
	end,
	on_rightclick = function(pos, node, puncher, pointed_thing)
		if not puncher or not minetest.check_player_privs(puncher, "server") then
			return
		end
		local meta = minetest.get_meta(pos)
		local id = meta:get_int("box")
		local newid = id - 1
		local is_series = meta:get_int("is_series")
		if is_series == 1 and not db.box_exists(newid) then
			newid = db.get_last_box_id()
		end
		meta:set_int("box", newid)
		minetest.chat_send_player(puncher:get_player_name(), S("Destination set to @1.", newid))
	end,
})

register_teleport("boxes:exit_teleport", {
	description = S("Box exit teleporter"),
	tiles = {"diamond.png"},
	on_teleport = function(pos, node, player)
		local name = player:get_player_name()
		if not boxes.players_in_boxes[name] then
			return
		end
		local bx = boxes.players_in_boxes[name]
		local stars = 0
		for _, p in ipairs(bx.star_positions) do
			local star_node = minetest.get_node(p)
			local nodedef = minetest.registered_nodes[star_node.name]
			if nodedef and nodedef.groups and nodedef.groups.star and nodedef.groups.star > 0 then
				stars = stars + 1
			end
		end
		local icons = {}
		local icon_ids = {}
		for _, p in ipairs(bx.category_positions) do
			local sign_node = minetest.get_node(p)
			local nodedef = minetest.registered_nodes[sign_node.name]
			if nodedef and nodedef.groups and nodedef.groups.icon and nodedef.groups.icon > 0 and
			nodedef.icon_name and nodedef.icon_name ~= "nil" then
				icons[#icons + 1] = nodedef.icon_name
				-- omit "nil" icon - nothing selected
				if nodedef.icon_id > 1 then
					icon_ids[#icon_ids + 1] = nodedef.icon_id
				end
			end
		end
		local ic = ""
		for i, iname in ipairs(icons) do
			if i > 1 then
				ic = ic .. ", "
			end
			ic = ic .. iname
		end

		-- record rating/icons if needed
		if stars > 0 then
			boxes.score(name, bx.box_id, "rating", {stars})
		end
		if #icon_ids > 0 then
			boxes.score(name, bx.box_id, "category", icon_ids)
		end

		local sid = boxes.players_in_boxes[name].in_series
		boxes.close_box(player)
		if sid then
			boxes.next_series(player, sid)
		else
			players.return_to_lobby(player)
		end
	end,
})

register_teleport("boxes:lobby_teleport", {
	description = S("Lobby teleporter"),
	tiles = {"blocks_tiles.png^[sheet:8x8:1,2"},
	on_teleport = function(pos, node, player)
		local name = player:get_player_name()
		if not boxes.players_in_boxes[name] then
			return
		end
		boxes.close_box(player)
		players.return_to_lobby(player)
	end,
})

local get_sizes = function(player)
	--FIXME link to scoring and limit box sizes for novice builders
	return {20, 25, 30, 35, 40}
end

local do_series_if = function(player, context)
	local name = player:get_player_name()
	assert(context)

	local f = "size[12,9]"

	if context.exc_sel then
		f = f .. "button[5.6,3;1,1;add;<<]"
	end
	if context.inc_sel then
		f = f .. "button[5.6,4;1,1;remove;>>]"
	end

	local showall = context.showall == "true"
	if showall then
		f = f .. "checkbox[6.5,1;showall;"..FE(S("Show all boxes"))..";true]"
	else
		f = f .. "checkbox[6.5,1;showall;"..FE(S("Show all boxes"))..";false]"
	end

	f = f .. "dropdown[0.5,1;5.45;series;"
	local series = db.series_get_series()
	local s_sel
	local i = 0
	for k, v in pairs(series) do
		i = i + 1
		f = f .. "{" .. v.id .. "} " .. minetest.formspec_escape(v.name)
		if k ~= #series then
			f = f .. ","
		end
		if context.series_id and context.series_id == v.id then
			s_sel = i
		end
	end
	if s_sel then
		f = f .. ";" .. s_sel .. "]"
	else
		f = f .. ";]"
	end

	local series_id = context.series_id
	if series_id then
		local smeta = db.series_get_meta(series_id)

		f = f .. "field[0.8,2.35;5.2,1;series_name;"..FE(S("Name"))..";" ..
			minetest.formspec_escape(smeta.name) .. "]" ..
			"field_close_on_enter[series_name;false]"

		f = f .. "dropdown[6.5,2;5.45;series_type;" ..
			""..FE(S("Sequential"))..","..FE(S("Random access")).."" ..
			";" .. (1 + smeta.meta.type) .. "]"

		f = f .. "textlist[0.5,3;5,6;list_included;"

		local boxes = db.series_get_boxes(series_id)
		context.inc = boxes
		for k, box_id in pairs(boxes) do
			local bmeta = db.box_get_meta(box_id)
			local bname = bmeta.meta.box_name or "[unnamed]"
			if bmeta.meta.status == db.STATUS_SUBMITTED then
				f = f .. "#FF8800"
			elseif bmeta.meta.status == db.STATUS_ACCEPTED then
				f = f .. "#00FF00"
			elseif bmeta.meta.builder ~= name then
				f = f .. "#FFFFAA"
			end
			f = f .. minetest.formspec_escape("[" .. box_id .. "] " .. bname)
			if k ~= #boxes then
				f = f .. ","
			end
		end
		f = f .. ";]"

		f = f .. "textlist[6.5,3;5,6;list_excluded;"

		local b_all
		if showall then
			-- list all boxes not in current series
			b_all = db.series_get_boxes_not_in(series_id)
		else
			-- list boxes not in any series (unreachable)
			b_all = db.series_get_boxes_not_in()
		end
		-- don't show non-accepted boxes here, at all
		local b = {}
		local b_size = 1
		for k, box_id in ipairs(b_all) do
			local bmeta = db.box_get_meta(box_id)
			if bmeta.meta.status == db.STATUS_ACCEPTED then
				b[b_size] = box_id
				b_size = b_size + 1
			end
		end
		context.exc = b
		for k, box_id in ipairs(b) do
			local bmeta = db.box_get_meta(box_id)
			if bmeta.meta.status == db.STATUS_SUBMITTED then
				f = f .. "#FF8800"
			elseif bmeta.meta.status == db.STATUS_ACCEPTED then
				f = f .. "#00FF00"
			elseif bmeta.meta.builder ~= name then
				f = f .. "#FFFFAA"
			end
			local bname = bmeta.meta.box_name or "[unnamed]"
			f = f .. minetest.formspec_escape("[" .. box_id .. "] " .. bname)
			if k ~= #b then
				f = f .. ","
			end
		end

		f = f .. ";]"
	end
	fsc.show(name, f, context, callback.series)
end

function callback.series(player, fields, context)
	local name = player:get_player_name()

	-- minimum required permissions
	if not minetest.check_player_privs(name, "server") then
		return true
	end

	if fields.showall then
		context.showall = fields.showall
		do_series_if(player, context)
		return
	end
	if fields.list_included then
		local i = tonumber(string.match(fields.list_included, ":(%d+)", 1))
		context.inc_sel = context.inc[i]
		do_series_if(player, context)
		return
	end
	if fields.list_excluded then
		local i = tonumber(string.match(fields.list_excluded, ":(%d+)", 1))
		context.exc_sel = context.exc[i]
		do_series_if(player, context)
		return
	end
	if fields.add then
		if context.exc_sel and context.series_id then
			db.series_add_at_end(context.series_id, context.exc_sel)
			minetest.log("action", name .. " added box " .. context.exc_sel ..
				" to series " .. context.series_id)
			minetest.chat_send_player(name, S("Added box @1 to series @2.", context.exc_sel,
				context.series_id))
			context.exc_sel = nil
		end
		do_series_if(player, context)
		return
	end
	if fields.remove then
		if context.inc_sel and context.series_id then
			db.series_delete_box(context.series_id, context.inc_sel)
			minetest.log("action", name .. " removed box " .. context.inc_sel ..
				" from series " .. context.series_id)
			minetest.chat_send_player(name, S("Removed box @1 from series @2.", context.inc_sel,
				context.series_id))
			context.inc_sel = nil
		end
		do_series_if(player, context)
		return
	end

	-- These three fields are dropdowns or text fields, and sent every time
	-- We need to handle every one of them
	if fields.series then
		context.series_id = tonumber(string.match(fields.series, "{(%d+)}", 1))
	end
	if fields.series_type and not fields.key_enter_field then
		if context.series_id then
			local smeta = db.series_get_meta(context.series_id)
			local ntype = smeta.meta.type
			if fields.series_type == FE(S("Sequential")) then
				minetest.chat_send_player(name, S("Changing series @1 to type Sequential.",
					context.series_id))
				minetest.log("action", name .. " changes series " .. context.series_id ..
					" to type Sequential")
				ntype = db.SEQUENTIAL_TYPE
			elseif fields.series_type == FE(S("Random access")) then
				minetest.chat_send_player(name, S("Changing series @1 to type Random.",
					context.series_id))
				minetest.log("action", name .. " changes series " .. context.series_id ..
					" to type Random")
				ntype = db.RANDOM_ACCESS_TYPE
			end
			smeta.meta.type = ntype
			db.series_set_meta(context.series_id, smeta)
		end
	end
	if fields.series_name and fields.key_enter_field == "series_name" then
		if context.series_id then
			local smeta = db.series_get_meta(context.series_id)
			smeta.name = fields.series_name
			db.series_set_meta(context.series_id, smeta)
			minetest.chat_send_player(name, S("Renamed series @1 to \"@2\".",
				context.series_id, fields.series_name))
			minetest.log("action", name .. " renamed series " .. context.series_id ..
				" to \"" .. fields.series_name .. "\"")
		end
	end
	if fields.series or fields.series_type or fields.series_name then
		do_series_if(player, context)
		return
	end

	return true
end

do_creator_if = function(player, context)
	local name = player:get_player_name()
	if not context.boxes or not context.sizes then
		context.boxes = boxes.get_player_boxes(name)
		context.sizes = get_sizes(name)
	end

	local counts = {
		accepted = 0,
		submitted = 0,
		editing = 0
		}

	local f =
		"size[12, 8]" ..
		"field_close_on_enter[input;false]" ..
		"textlist[0.4,0.5;7.2,7.3;boxes;"
	--list of boxes owned, or all in case of admin
	for i, v in ipairs(context.boxes) do
		if i > 1 then f = f .. "," end
		local text = ""
		if v.status == db.STATUS_SUBMITTED then
			text = "#FF8800"
			counts.submitted = counts.submitted + 1
		elseif v.status == db.STATUS_ACCEPTED then
			text = "#00FF00"
			counts.accepted = counts.accepted + 1
		else
			if v.builder ~= name then
				text = "#FFFFAA"
			end
			counts.editing = counts.editing + 1
		end
		text = text .. v.id .. " - " .. minetest.formspec_escape(v.name)
		if v.builder ~= name then
			text = text .. " (" .. minetest.formspec_escape(v.builder or "") .. ")"
		end
		f = f .. text
	end
	f = f .. "]"

	if minetest.check_player_privs(name, "server") then
		f = f .. "button[8.4,0;3.4,1;series;"..FE(S("Manage Series")).."]"
	end

	local limit = tonumber(player:get_attribute("box_create_limit") or "3")

	if (minetest.check_player_privs(name, "create") and counts.editing + counts.submitted <= limit) or
	   minetest.check_player_privs(name, "server") then
		context.cancreate = true
		f = f .. "button[8.4,1;3.4,1;new;"..FE(S("Create new")).."]"
	elseif not context.limitreached then
		context.limitreached = true
		minetest.chat_send_player(name,
			S("You have too many unfinished boxes. Box creation will become available again once your boxes get accepted."))
	end

	if context.box and context.box.status == db.STATUS_EDITING then
		f = f .. "button[8.4,3;3.4,1;submit;"..FE(S("Submit")).."]"
	elseif minetest.check_player_privs(name, "server") and context.box and
	       context.box.status == db.STATUS_SUBMITTED then
		f = f .. "button[8.4,3;3.4,1;reject;"..FE(S("Reject")).."]"
		f = f .. "button[8.4,4;3.4,1;accept;"..FE(S("Accept")).."]"
	elseif context.box and context.box.status == db.STATUS_SUBMITTED then
		f = f .. "button[8.4,3;3.4,1;retract;"..FE(S("Retract")).."]"
	end

	if not context.box or context.box.status == db.STATUS_EDITING then
		f = f .. "button[8.4,7;3.4,1;edit;"..FE(S("Edit")).."]"
	elseif minetest.check_player_privs(name, "server") then
		f = f .. "button[8.4,7;3.4,1;edit;"..FE(S("Force edit")).."]"
	end

	if context.box then
		f = f .. "button[8.4,6;3.4,1;play;"..FE(S("Play")).."]"
	end

	fsc.show(name, f, context, callback.boxes_create)
end

local do_creator_size_if = function(player, context)
	local name = player:get_player_name()

	local f =
		"size[6.2, 6]" ..
		"field_close_on_enter[input;false]" ..
		"textlist[0.4,0.5;5.2,4.3;sizes;"

	for i, v in ipairs(context.sizes) do
		if i > 1 then f = f .. "," end
		f = f .. tostring(v)
	end
	f = f ..
		"]" ..
		"button[0.4,5;5.4,1;create;"..FE(S("Choose selected size")).."]"

	fsc.show(name, f, context, callback.boxes_create)
end

function callback.boxes_create(player, fields, context)
	local name = player:get_player_name()

	-- minimum required permissions
	if not minetest.check_player_privs(name, "create") and
	   not minetest.check_player_privs(name, "server") then
		return true
	end

	local meta = nil

	-- makes reading the code below a bit easier
	local function box_set_status(id, status)
		if not meta then
			meta = db.box_get_meta(id)
			assert(meta.meta)
		end
		meta.meta.status = status
		db.box_set_meta(id, meta)
	end

	local function box_get_status(id)
		if not meta then
			meta = db.box_get_meta(id)
			assert(meta.meta)
		end
		return meta.meta.status
	end

	local is_admin = minetest.check_player_privs(name, "server")

	-- sadly a function, because meta may be nil
	local function is_builder(id)
		if not meta then
			meta = db.box_get_meta(id)
			assert(meta.meta)
		end
		return meta.meta.builder == name
	end

	if fields.boxes and fields.boxes ~= "INV" then
		local s, _ = fields.boxes:gsub(".*:(.*)", "%1")
		if not s then
			return true
		end
		local n = tonumber(s, 10)
		if n and context.boxes[n] then
			context.box = context.boxes[n]
			do_creator_if(player, context)
			return
		else
			return true
		end
	elseif fields.play and context.box then
		local id = context.box.id
		if is_admin or box_get_status(id) == db.STATUS_ACCEPTED or is_builder(id) then
			minetest.chat_send_player(name, S("Playing box @1", tostring(id)))
			minetest.registered_chatcommands["enter"].func(name, tostring(id))
		end
		return true
	elseif fields.edit and context.box then
		local id = context.box.id
		if is_admin or (box_get_status(id) == db.STATUS_EDITING and is_builder(id)) then
			minetest.chat_send_player(name, S("Editing box @1",  tostring(id)))
			minetest.registered_chatcommands["edite"].func(name, tostring(id))
		end
		return true
	elseif fields.submit and context.box then
		local id = context.box.id
		if is_admin or (box_get_status(id) == db.STATUS_EDITING and is_builder(id)) then
			if not meta then
				meta = db.box_get_meta(id)
			end
			if meta.meta.builder == name and not meta.meta.tested then
				minetest.chat_send_player(name, S("Box @1 was not tested yet.\n" ..
					"You need to play through this box once before you are allowed to submit it.", tostring(id)))
				return true
			end
			minetest.chat_send_player(name, S("Submitting box @1", tostring(id)))
			announce.all(name .. " submits box " .. tostring(id))
			announce.admins(name .. " submits box " .. tostring(id))
			box_set_status(id, db.STATUS_SUBMITTED)
		end
		return true
	elseif fields.accept and context.box then
		local id = context.box.id
		if is_admin and box_get_status(id) == db.STATUS_SUBMITTED then
			minetest.chat_send_player(name, S("Accepting box @1", tostring(id)))
			announce.all(name .. " accepts box " .. tostring(id) .. "!")
			announce.admins(name .. " accepts box " .. tostring(id) .. "!")
			box_set_status(id, db.STATUS_ACCEPTED)
			-- grant perks to box builder
			local box_meta = db.box_get_meta(id)
			perks.grant(box_meta.meta.builder)
		end
		return true
	elseif fields.retract and context.box then
		local id = context.box.id
		if is_builder(id) and box_get_status(id) == db.STATUS_SUBMITTED then
			minetest.chat_send_player(name, S("Retracted box @1", tostring(id)))
			announce.all(name .. " retracts box " .. tostring(id))
			announce.admins(name .. " retracts box " .. tostring(id))
			box_set_status(id, db.STATUS_EDITING)
		end
		return true
	elseif fields.reject and context.box then
		local id = context.box.id
		if is_admin and box_get_status(id) == db.STATUS_SUBMITTED then
			minetest.chat_send_player(name, S("Rejecting box @1", tostring(id)))
			announce.all(name .. " rejects box " .. tostring(id))
			announce.admins(name .. " rejects box " .. tostring(id))
			box_set_status(id, db.STATUS_EDITING)
		end
		return true
	elseif fields.new and context.cancreate then
		do_creator_size_if(player, context)
		return
	elseif fields.series and is_admin then
		do_series_if(player, {})
		return
	elseif fields.sizes then
		local s, _ = fields.sizes:gsub(".*:(.*)", "%1")
		context.size = context.sizes[tonumber(s, 10)]
		return
	elseif fields.create and context.size and context.cancreate then
		minetest.close_formspec(name, "")
		minetest.chat_send_player(name, S("Creating a new box with size @1", context.size))
		minetest.log("action", name .. " creates a new box with size " .. context.size)
		boxes.make_new(player, context.size)
		return true
	end
	return true
end

register_teleport("boxes:creator_teleport", {
	description = S("Creator teleporter"),
	tiles = {"blocks_tiles.png^[sheet:8x8:2,2"},
	on_teleport = function(pos, node, player)
		do_creator_if(player, {})
		return true
	end,
})

minetest.register_node("boxes:nexus", {
	description = S("Nexus"),
	drawtype = "mesh",
	mesh = "nexus.obj",
	paramtype = "light",
	paramtype2 = "facedir",
	light_source = 6,
	tiles = {
		{
			name = "nexus.png",
			animation = {
				type = "vertical_frames",
				aspect_w = 48,
				aspect_h = 16,
				length = 6.25,
			}
		},
	},
	selection_box = {
		type = "fixed",
		fixed = {-3/8, -3/8, -3/8, 3/8, 3/8, 3/8},
	},
	collision_box = {
		type = "fixed",
		fixed = {-3/8, -3/8, -3/8, 3/8, 3/8, 3/8},
	},
	group = {node = 0, nexus = 1},
	node_placement_prediction = "",
	on_place = function(itemstack, placer, pointed_thing, param2)
		-- Can't be placed, will only trigger on_rightclick if defined
		if pointed_thing.type == "node" then
			local n = minetest.get_node(pointed_thing.under)
			local nn = n.name
			if minetest.registered_nodes[nn] and minetest.registered_nodes[nn].on_rightclick then
				return minetest.registered_nodes[nn].on_rightclick(pointed_thing.under, n,
						placer, itemstack, pointed_thing) or itemstack, false
			end
		end

		return itemstack
	end,
	on_trigger = function() end,
	on_untrigger = function() end,
	groups = {not_in_creative_inventory = 1},
})

minetest.register_node("boxes:nexus_large", {
	description = S("Mega nexus"),
	drawtype = "mesh",
	mesh = "nexus.obj",
	paramtype = "light",
	paramtype2 = "facedir",
	visual_scale = 4.0,
	wield_scale = { x=3.2, y=3.2, z=3.2 },
	tiles = {
		{
			name = "nexus.png",
			animation = {
				type = "vertical_frames",
				aspect_w = 48,
				aspect_h = 16,
				length = 6.25,
			}
		},
	},
	selection_box = {
		type = "fixed",
		fixed = {-3/8, -3/8, -3/8, 3/8, 3/8, 3/8},
	},
	collision_box = {
		type = "fixed",
		fixed = {-3/8, -3/8, -3/8, 3/8, 3/8, 3/8},
	},
	group = {node = 0},
	on_construct = function(pos)
		-- flip after 2 cycles
		minetest.get_node_timer(pos):start(12.5)
	end,
	on_timer = function(pos, node)
		-- make it self-rotate randomly
		minetest.swap_node(pos, {name = "boxes:nexus_large", param2 = math.random(24) - 1})
	end,
	groups = {not_in_creative_inventory = 1},
})


minetest.register_craftitem("boxes:set_door", {
	description = S("Box door placement tool").."\n"..
		S("Place or move entry and exit doors and box number").."\n" ..
		S("Entry door must be on the west wall.").."\n" ..
		S("Exit door must be on the east wall.").."\n" ..
		S("Box number must be on the south wall."),
	inventory_image = "set_door_tool.png",
	on_place = function(itemstack, placer, pointed_thing)
		if pointed_thing.type ~= "node" or not placer then
			return
		end

		local name = placer:get_player_name()
		local pos = pointed_thing.under
		if not boxes.players_editing_boxes[name] then
			return
		end
		local box = boxes.players_editing_boxes[name]
		local pos1
		local pos2
		local dir
		local wallnode = {name = "nodes:marbleb"}
		if pos.x == box.minp.x then
			if pos.y <= box.minp.y or pos.y >= box.maxp.y - 2
				or pos.z <= box.minp.z or pos.z >= box.maxp.z - 2
			then
				return
			end
			pos1 = pos
			pos2 = {x = pos.x, y = pos.y, z = pos.z + 1}
			dir = 3
			for y = box.entry.y, box.entry.y + 1 do
				for z = box.entry.z, box.entry.z + 1 do
					minetest.set_node({x = pos.x, y = y, z = z}, wallnode)
				end
			end
			box.entry = {x = pos.x, y = pos.y, z = pos.z}
		elseif pos.x == box.maxp.x then
			if pos.y <= box.minp.y or pos.y >= box.maxp.y - 2
				or pos.z <= box.minp.z + 1 or pos.z >= box.maxp.z - 1
			then
				return
			end
			pos1 = pos
			pos2 = {x = pos.x, y = pos.y, z = pos.z - 1}
			dir = 1
			for y = box.exit.y, box.exit.y + 1 do
				for z = box.exit.z, box.exit.z + 1 do
					minetest.set_node({x = pos.x, y = y, z = z}, wallnode)
				end
			end
			box.exit = {x = pos.x + 1, y = pos.y, z = pos.z - 1}
		elseif pos.z == box.minp.z then
			pos.x = math.min(pos.x, box.maxp.x - ((string.len(box.box_id) * 4) - 1))
			pos.y = math.min(pos.y, box.maxp.y - 5)
			boxes.move_digits(placer, pos)
			return
		else
			return
		end
		local door_name = "doors:door_steel"
		local state1 = 0
		local state2 = 2
		local meta1 = minetest.get_meta(pos1)
		local meta2 = minetest.get_meta(pos2)
		local above1 = vector.add(pos1, {x = 0, y = 1, z = 0})
		local above2 = vector.add(pos2, {x = 0, y = 1, z = 0})
		minetest.set_node(pos1, {name = door_name .. "_a", param2 = dir})
		minetest.set_node(above1, {name = "doors:hidden", param2 = dir})
		meta1:set_int("state", state1)
		meta1:set_string("doors_owner", "boxes:door owner")
		minetest.set_node(pos2, {name = door_name .. "_b", param2 = dir})
		minetest.set_node(above2, {name = "doors:hidden", param2 = (dir + 3) % 4})
		meta2:set_int("state", state2)
		meta2:set_string("doors_owner", "boxes:door owner")
	end,
})
frame.register("boxes:set_door")