local function get_chest_neighborpos(pos, param2, side)
	if side == "right" then
		if param2 == 0 then
			return {x=pos.x-1, y=pos.y, z=pos.z}
		elseif param2 == 1 then
			return {x=pos.x, y=pos.y, z=pos.z+1}
		elseif param2 == 2 then
			return {x=pos.x+1, y=pos.y, z=pos.z}
		elseif param2 == 3 then
			return {x=pos.x, y=pos.y, z=pos.z-1}
		end
	else
		if param2 == 0 then
			return {x=pos.x+1, y=pos.y, z=pos.z}
		elseif param2 == 1 then
			return {x=pos.x, y=pos.y, z=pos.z-1}
		elseif param2 == 2 then
			return {x=pos.x-1, y=pos.y, z=pos.z}
		elseif param2 == 3 then
			return {x=pos.x, y=pos.y, z=pos.z+1}
		end
	end
end

local register_chest = function(basename, desc, longdesc, usagehelp, large_desc, large_longdesc, large_usagehelp)

minetest.register_node("mcl_chests:"..basename, {
	description = desc,
	_doc_items_longdesc = longdesc,
	_doc_items_usagehelp = usagehelp,
	tiles = {"default_chest_top.png", "default_chest_top.png", "default_chest_side.png",
		"default_chest_side.png", "default_chest_side.png", "default_chest_front.png"},
	paramtype2 = "facedir",
	stack_max = 64,
	groups = {handy=1,axey=1, container=2, deco_block=1, material_wood=1},
	is_ground_content = false,
	sounds = mcl_sounds.node_sound_wood_defaults(),
	on_construct = function(pos)
		local param2 = minetest.get_node(pos).param2
		local meta = minetest.get_meta(pos)
		if minetest.get_node(get_chest_neighborpos(pos, param2, "right")).name == "mcl_chests:"..basename then
			minetest.set_node(pos, {name="mcl_chests:"..basename.."_right",param2=param2})
			local p = get_chest_neighborpos(pos, param2, "right")
			meta:set_string("formspec",
					"size[9,11.5]"..
					"background[-0.19,-0.25;9.41,12.5;crafting_inventory_chest_large.png]"..
					mcl_vars.inventory_header..
					"list[nodemeta:"..p.x..","..p.y..","..p.z..";main;0,0.5;9,3;]"..
					"list[current_name;main;0,3.5;9,3;]"..
					"list[current_player;main;0,7.5;9,3;9]"..
					"list[current_player;main;0,10.75;9,1;]"..
					"listring[current_player;main]"..
					"listring[nodemeta:"..p.x..","..p.y..","..p.z..";main]"..
					"listring[current_player;main]"..
					"listring[current_name;main]")
			minetest.swap_node(p, { name = "mcl_chests:"..basename.."_left", param2 = param2 })
			local m = minetest.get_meta(p)
			m:set_string("formspec",
					"size[9,11.5]"..
					"background[-0.19,-0.25;9.41,12.5;crafting_inventory_chest_large.png]"..
					mcl_vars.inventory_header..
					"list[current_name;main;0,0.5;9,3;]"..
					"list[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main;0,3.5;9,3;]"..
					"list[current_player;main;0,7.5;9,3;9]"..
					"list[current_player;main;0,10.75;9,1;]"..
					"listring[current_player;main]"..
					"listring[current_name;main]"..
					"listring[current_player;main]"..
					"listring[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main]")
		elseif minetest.get_node(get_chest_neighborpos(pos, param2, "left")).name == "mcl_chests:"..basename then
			minetest.set_node(pos, {name="mcl_chests:"..basename.."_left",param2=param2})
			local p = get_chest_neighborpos(pos, param2, "left")
			meta:set_string("formspec",
					"size[9,11.5]"..
					"background[-0.19,-0.25;9.41,12.5;crafting_inventory_chest_large.png]"..
					mcl_vars.inventory_header..
					"list[current_name;main;0,0.5;9,3;]"..
					"list[nodemeta:"..p.x..","..p.y..","..p.z..";main;0,3.5;9,3;]"..
					"list[current_player;main;0,7.5;9,3;9]"..
					"list[current_player;main;0,10.75;9,1;]"..
					"listring[current_player;main]"..
					"listring[current_name;main]"..
					"listring[current_player;main]"..
					"listring[nodemeta:"..p.x..","..p.y..","..p.z..";main]")
			minetest.swap_node(p, { name = "mcl_chests:"..basename.."_right", param2 = param2 })
			local m = minetest.get_meta(p)
			m:set_string("formspec",
					"size[9,11.5]"..
					"background[-0.19,-0.25;9.41,12.5;crafting_inventory_chest_large.png]"..
					mcl_vars.inventory_header..
					"list[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main;0,0.5;9,3;]"..
					"list[current_name;main;0,3.5;9,3;]"..
					"list[current_player;main;0,7.5;9,3;9]"..
					"list[current_player;main;0,10.75;9,1;]"..
					"listring[current_player;main]"..
					"listring[nodemeta:"..pos.x..","..pos.y..","..pos.z..";main]"..
					"listring[current_player;main]"..
					"listring[current_name;main]")
		else
			meta:set_string("formspec",
					"size[9,8.75]"..
					mcl_vars.inventory_header..
					"background[-0.19,-0.25;9.41,10.48;crafting_inventory_chest.png]"..
					"image[0,-0.2;5,0.75;fnt_chest.png]"..
					"list[current_name;main;0,0.5;9,3;]"..
					"list[current_player;main;0,4.5;9,3;9]"..
					"list[current_player;main;0,7.74;9,1;]"..
					"listring[current_name;main]"..
					"listring[current_player;main]")
		end
		local inv = meta:get_inventory()
		inv:set_size("main", 9*3)
	end,
	after_dig_node = function(pos, oldnode, oldmetadata, digger)
		local meta = minetest.get_meta(pos)
		local meta2 = meta
		meta:from_table(oldmetadata)
		local inv = meta:get_inventory()
		for i=1,inv:get_size("main") do
			local stack = inv:get_stack("main", i)
			if not stack:is_empty() then
				local p = {x=pos.x+math.random(0, 10)/10-0.5, y=pos.y, z=pos.z+math.random(0, 10)/10-0.5}
				minetest.add_item(p, stack)
			end
		end
		meta:from_table(meta2:to_table())
	end,
	on_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff in chest at "..minetest.pos_to_string(pos))
	end,
	on_metadata_inventory_put = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff to chest at "..minetest.pos_to_string(pos))
	end,
	on_metadata_inventory_take = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" takes stuff from chest at "..minetest.pos_to_string(pos))
	end,
	_mcl_blast_resistance = 2.5,
	_mcl_hardness = 2.5,
})

minetest.register_node("mcl_chests:"..basename.."_left", {
	tiles = {"default_chest_top_big.png", "default_chest_top_big.png", "default_chest_side.png",
		"default_chest_side.png", "default_chest_side_big.png^[transformFX", "default_chest_front_big.png"},
	paramtype2 = "facedir",
	groups = {handy=1,axey=1, container=2,not_in_creative_inventory=1, material_wood=1},
	drop = "mcl_chests:"..basename,
	is_ground_content = false,
	sounds = mcl_sounds.node_sound_wood_defaults(),
	on_destruct = function(pos)
		local n = minetest.get_node(pos)
		if n.name == "mcl_chests:"..basename then
			return
		end
		local param2 = n.param2
		local p = get_chest_neighborpos(pos, param2, "left")
		if not p or minetest.get_node(p).name ~= "mcl_chests:"..basename.."_right" then
			return
		end
		local meta = minetest.get_meta(p)
		meta:set_string("formspec",
				"size[9,8.75]"..
				"background[-0.19,-0.25;9.41,10.48;crafting_inventory_chest.png]"..
				"image[0,-0.2;5,0.75;fnt_chest.png]"..
				mcl_vars.inventory_header..
				"list[current_name;main;0,0.5;9,3;]"..
				"list[current_player;main;0,4.5;9,3;9]"..
				"list[current_player;main;0,7.74;9,1;]"..
				"listring[current_name;main]"..
				"listring[current_player;main]")
		minetest.swap_node(p, { name = "mcl_chests:"..basename, param2 = param2 })
	end,
	after_dig_node = function(pos, oldnode, oldmetadata, digger)
		local meta = minetest.get_meta(pos)
		local meta2 = meta
		meta:from_table(oldmetadata)
		local inv = meta:get_inventory()
		for i=1,inv:get_size("main") do
			local stack = inv:get_stack("main", i)
			if not stack:is_empty() then
				local p = {x=pos.x+math.random(0, 10)/10-0.5, y=pos.y, z=pos.z+math.random(0, 10)/10-0.5}
				minetest.add_item(p, stack)
			end
		end
		meta:from_table(meta2:to_table())
	end,
	on_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff in chest at "..minetest.pos_to_string(pos))
	end,
	on_metadata_inventory_put = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff to chest at "..minetest.pos_to_string(pos))
	end,
	on_metadata_inventory_take = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" takes stuff from chest at "..minetest.pos_to_string(pos))
	end,
	_mcl_blast_resistance = 2.5,
	_mcl_hardness = 2.5,
})

minetest.register_node("mcl_chests:"..basename.."_right", {
	tiles = {"default_chest_top_big.png^[transformFX", "default_chest_top_big.png^[transformFX", "default_chest_side.png",
		"default_chest_side.png", "default_chest_side_big.png", "default_chest_front_big.png^[transformFX"},
	paramtype2 = "facedir",
	groups = {handy=1,axey=1, container=2,not_in_creative_inventory=1, material_wood=1},
	drop = "mcl_chests:"..basename,
	is_ground_content = false,
	sounds = mcl_sounds.node_sound_wood_defaults(),
	on_destruct = function(pos)
		local n = minetest.get_node(pos)
		if n.name == "mcl_chests:"..basename then
			return
		end
		local param2 = n.param2
		local p = get_chest_neighborpos(pos, param2, "right")
		if not p or minetest.get_node(p).name ~= "mcl_chests:"..basename.."_left" then
			return
		end
		local meta = minetest.get_meta(p)
		meta:set_string("formspec",
				"size[9,8.75]"..
				"background[-0.19,-0.25;9.41,10.48;crafting_inventory_chest.png]"..
				"image[0,-0.2;5,0.75;fnt_chest.png]"..
				mcl_vars.inventory_header..
				"list[current_name;main;0,0.5;9,3;]"..
				"list[current_player;main;0,4.5;9,3;9]"..
				"list[current_player;main;0,7.74;9,1;]"..
				"listring[current_name;main]"..
				"listring[current_player;main]")
		minetest.swap_node(p, { name = "mcl_chests:"..basename, param2 = param2 })
	end,
	after_dig_node = function(pos, oldnode, oldmetadata, digger)
		local meta = minetest.get_meta(pos)
		local meta2 = meta
		meta:from_table(oldmetadata)
		local inv = meta:get_inventory()
		for i=1,inv:get_size("main") do
			local stack = inv:get_stack("main", i)
			if not stack:is_empty() then
				local p = {x=pos.x+math.random(0, 10)/10-0.5, y=pos.y, z=pos.z+math.random(0, 10)/10-0.5}
				minetest.add_item(p, stack)
			end
		end
		meta:from_table(meta2:to_table())
	end,
	on_metadata_inventory_move = function(pos, from_list, from_index, to_list, to_index, count, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff in chest at "..minetest.pos_to_string(pos))
	end,
	on_metadata_inventory_put = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" moves stuff to chest at "..minetest.pos_to_string(pos))
	end,
	on_metadata_inventory_take = function(pos, listname, index, stack, player)
		minetest.log("action", player:get_player_name()..
				" takes stuff from chest at "..minetest.pos_to_string(pos))
	end,
	_mcl_blast_resistance = 2.5,
	_mcl_hardness = 2.5,
	})
end

register_chest("chest",
	"Chest",
	"Chests are containers which provide 27 inventory slots. Chests can be turned into large chests with double the capacity by placing two chests next to each other.",
	"To acccess the inventory of a chest or large chest, rightclick it. When broken, the items of the chest will drop out."
)

register_chest("trapped_chest",
	"Trapped Chest",
	"A trapped chest is a container which provides 27 inventory slots. It looks identical to a regular chest, but when it is opened, it sends a redstone signal to its adjacent blocks. Trapped chests can be turned into large trapped chests with double the capacity by placing two trapped chests next to each other.",
	"To acccess the inventory of a trapped chest or a large trapped chest, rightclick it. When broken, the items will drop out."
)

minetest.register_craft({
	output = 'mcl_chests:chest',
	recipe = {
		{'group:wood', 'group:wood', 'group:wood'},
		{'group:wood', '', 'group:wood'},
		{'group:wood', 'group:wood', 'group:wood'},
	}
})

minetest.register_craft({
	type = 'fuel',
	recipe = 'mcl_chests:chest',
	burntime = 15
})

minetest.register_craft({
	type = 'fuel',
	recipe = 'mcl_chests:trapped_chest',
	burntime = 15
})

minetest.register_node("mcl_chests:ender_chest", {
	description = "Ender Chest",
	_doc_items_longdesc = "Ender chests grant you access to a single personal interdimensional inventory with 27 slots. This inventory is the same no matter from which ender chest you access it from. If you put one item into one ender chest, you will find it in all other ender chetss worldwide. Each player will only see their own items, but not the items of other players.",
	_doc_items_usagehelp = "Rightclick the ender chest to access your personal interdimensional inventory.",
	tiles = {"mcl_chests_ender_chest_top.png", "mcl_chests_ender_chest_bottom.png",
		"mcl_chests_ender_chest_right.png", "mcl_chests_ender_chest_left.png",
		"mcl_chests_ender_chest_back.png", "mcl_chests_ender_chest_front.png"},
	-- Note: The “container” group is missing here because the ender chest does not
	-- have an inventory on its own
	groups = {pickaxey=1, deco_block=1, material_stone=1},
	is_ground_content = false,
	paramtype = "light",
	light_source = 7,
	paramtype2 = "facedir",
	sounds = mcl_sounds.node_sound_stone_defaults(),
	drop = "mcl_core:obsidian 8",
	on_construct = function(pos)
		local meta = minetest.get_meta(pos)
		meta:set_string("formspec", 
				"size[9,8.75]"..
				mcl_vars.inventory_header..
				"background[-0.19,-0.25;9.41,10.48;crafting_inventory_chest.png]"..
				"image[0,-0.2;5,0.75;fnt_ender_chest.png]"..
				"list[current_player;enderchest;0,0.5;9,3;]"..
				"list[current_player;main;0,4.5;9,3;9]"..
				"list[current_player;main;0,7.74;9,1;]"..
				"listring[current_player;enderchest]"..
				"listring[current_player;main]")
	end,
	_mcl_blast_resistance = 3000,
	_mcl_hardness = 22.5,
})

minetest.register_on_joinplayer(function(player)
	local inv = player:get_inventory()
	inv:set_size("enderchest", 9*3)
end)

minetest.register_craft({
	output = 'mcl_chests:ender_chest',
	recipe = {
		{'mcl_core:obsidian', 'mcl_core:obsidian', 'mcl_core:obsidian'},
		{'mcl_core:obsidian', 'mcl_end:ender_eye', 'mcl_core:obsidian'},
		{'mcl_core:obsidian', 'mcl_core:obsidian', 'mcl_core:obsidian'},
	}
})

-- Shulker boxes
local boxtypes = {
	white = "White Shulker Box",
	grey = "Light Grey Shulker Box",
	orange = "Orange Shulker Box",
	cyan = "Cyan Shulker Box",
	magenta = "Magenta Shulker Box",
	violet = "Purple Shulker Box",
	lightblue = "Light Blue Shulker Box",
	blue = "Blue Shulker Box",
	yellow = "Yellow Shulker Box",
	brown = "Brown Shulker Box",
	green = "Lime Shulker Box",
	dark_green = "Green Shulker Box",
	pink = "Pink Shulker Box",
	red = "Red Shulker Box",
	dark_grey = "Grey Shulker Box",
	black = "Black Shulker Box",
}

for color, desc in pairs(boxtypes) do
	minetest.register_node("mcl_chests:"..color.."_shulker_box", {
		description = desc,
		_doc_items_longdesc = "A shulker box is a portable container which provides 27 inventory slots for any item except shulker boxes. Shulker boxes keep their inventory when broken, so shulker boxes as well as their contents can be taken as a single item. Shulker boxes come in many different colors.",
		_doc_items_usagehelp = "To access the inventory of a shulker box, place and right-click it. To take a shulker box and its contents with you, just break and collect it, the items will not fall out. Place the shulker box again to be able to retrieve its contents.",
		tiles = {"mcl_chests_"..color.."_shulker_box_top.png", "mcl_chests_"..color.."_shulker_box_bottom.png",
			"mcl_chests_"..color.."_shulker_box_side.png", "mcl_chests_"..color.."_shulker_box_side.png",
			"mcl_chests_"..color.."_shulker_box_side.png", "mcl_chests_"..color.."_shulker_box_side.png"},
		groups = {handy=1,pickaxey=1, container=3, deco_block=1, shulker_box=1},
		is_ground_content = false,
		sounds = mcl_sounds.node_sound_stone_defaults(),
		stack_max = 1,
		drop = "",
		on_construct = function(pos)
			local meta = minetest.get_meta(pos)
			meta:set_string("formspec",
					"size[9,8.75]"..
					mcl_vars.inventory_header..
					"background[-0.19,-0.25;9.41,10.48;crafting_inventory_chest.png]"..
					"image[0,-0.2;5,0.75;fnt_shulker_box.png]"..
					"list[current_name;main;0,0.5;9,3;]"..
					"list[current_player;main;0,4.5;9,3;9]"..
					"list[current_player;main;0,7.74;9,1;]"..
					"listring[current_name;main]"..
					"listring[current_player;main]")
			local inv = meta:get_inventory()
			inv:set_size("main", 9*3)
		end,
		after_place_node = function(pos, placer, itemstack, pointed_thing)
			local nmeta = minetest.get_meta(pos)
			local ninv = nmeta:get_inventory()
			local imeta = itemstack:get_metadata()
			local iinv_main = minetest.deserialize(imeta)
			ninv:set_list("main", iinv_main)
			ninv:set_size("main", 9*3)
			if minetest.setting_getbool("creative_mode") then
				if not ninv:is_empty("main") then
					return nil
				else
					return itemstack
				end
			else
				return nil
			end
		end,
		after_dig_node = function(pos, oldnode, oldmetadata, digger)
			local meta = minetest.get_meta(pos)
			meta:from_table(oldmetadata)
			local inv = meta:get_inventory()
			local items = {}
			for i=1, inv:get_size("main") do
				local stack = inv:get_stack("main", i)
				items[i] = stack:to_string()
			end
			local data = minetest.serialize(items)
			local boxitem = ItemStack("mcl_chests:"..color.."_shulker_box")
			boxitem:set_metadata(data)

			if minetest.setting_getbool("creative_mode") then
				if not inv:is_empty("main") then
					minetest.add_item(pos, boxitem)
				end
			else
				minetest.add_item(pos, boxitem)
			end
		end,
		allow_metadata_inventory_put = function(pos, listname, index, stack, player)
			-- Do not allow to place shulker boxes into shulker boxes
			local group = minetest.get_item_group(stack:get_name(), "shulker_box")
			if group == 0 or group == nil then
				return stack:get_count()
			else
				return 0
			end
		end,
		_mcl_blast_resistance = 30,
		_mcl_hardness = 6,
	})

	minetest.register_craft({
		type = "shapeless",
		output = 'mcl_chests:'..color..'_shulker_box',
		recipe = { 'group:shulker_box', 'mcl_dye:'..color }
	})
end

minetest.register_craft({
	output = 'mcl_chests:violet_shulker_box',
	recipe = {
		{'mcl_mobitems:shulker_shell'},
		{'mcl_chests:chest'},
		{'mcl_mobitems:shulker_shell'},
	}
})