local show_armor = false
if minetest.get_modpath("3d_armor") ~= nil then show_armor = true end

local function item_drop(itemstack, dropper, pos)
	if dropper:is_player() then
		local v = dropper:get_look_dir()
		local p = {x=pos.x, y=pos.y+1.2, z=pos.z}
		p.x = p.x+(math.random(1,3)*0.2)
		p.z = p.z+(math.random(1,3)*0.2)
		local obj = minetest.env:add_item(p, itemstack)
		if obj then
			v.x = v.x*4
			v.y = v.y*4 + 2
			v.z = v.z*4
			obj:setvelocity(v)
		end
	else
		minetest.add_item(pos, itemstack)
	end
	return itemstack
end

local function drop_fields(player, name)
	local inv = player:get_inventory()
	for i,stack in ipairs(inv:get_list(name)) do
		item_drop(stack, player, player:getpos())
		stack:clear()
		inv:set_stack(name, i, stack)
	end
end

local player_armor = {}

local function update_armor(player)
	local out = ""
	if not player then return end
	local name = player:get_player_name()
	if not armor or not armor.textures then return end
	local armor_str = armor.textures[name].armor
	if string.find(armor_str, "leggings") then
		out = out .. "^crafting_armor_legs.png"
	end
	if string.find(armor_str, "boots") then
		out = out .. "^crafting_armor_boots.png"
	end
	if string.find(armor_str, "helmet") then
		out = out .. "^crafting_armor_helmet.png"
	end
	if string.find(armor_str, "chestplate") then
		out = out .. "^crafting_armor_chest.png"
	end
	player_armor[name] = out
end

local function set_inventory(player)
	if minetest.setting_getbool("creative_mode") then
		crafting.set_creative_formspec(player, 0, 1)
		return
	end
	player:get_inventory():set_width("craft", 2)
	player:get_inventory():set_size("craft", 4)

	local player_name = player:get_player_name()
	local img = "crafting_inventory_player.png"
	local armor_img = ""
	if show_armor then
		armor_img = "^crafting_inventory_armor.png"
		if player_armor[player_name] ~= nil then
			img = img .. player_armor[player_name]
		end
	end
	local img_element = "image[1,0;3,4;"..img.."]"
	if show_armor and armor.textures[player_name] and armor.textures[player_name].preview then
		img = armor.textures[player_name].preview
		local s1 = img:find("character_preview")
		if s1 ~= nil then
			s1 = img:sub(s1+21)
			img = "crafting_player2d.png"..s1
		end
		img_element = "image[1.5,0;2,4;"..img.."]"
	end

	local form = "size[9,8.75]"..
	"background[-0.19,-0.25;9.41,9.49;crafting_formspec_bg.png^crafting_inventory.png"..armor_img.."]"..
	default.inventory_header..
	img_element..
	--armor
	"list[detached:"..player_name.."_armor;armor;0,0;1,1;1]"..
	"list[detached:"..player_name.."_armor;armor;0,1;1,1;2]"..
	"list[detached:"..player_name.."_armor;armor;0,2;1,1;3]"..
	"list[detached:"..player_name.."_armor;armor;0,3;1,1;4]"..
	-- craft and inventory
	"list[current_player;main;0,4.5;9,3;9]"..
	"list[current_player;main;0,7.74;9,1;]"..
	"list[current_player;craft;4,1;2,2]"..
	"list[current_player;craftpreview;7,1.5;1,1;]"..
	-- for shortcuts
	"listring[current_player;main]"..
	"listring[current_player;craft]"..
	"listring[current_player;main]"..
	"listring[detached:"..player_name.."_armor;armor]"..
	"inv"
	
	player:set_inventory_formspec(form)
end

local function set_workbench(player)
	player:get_inventory():set_width("craft", 3)
	player:get_inventory():set_size("craft", 9)

	local form = "size[9,8.75]"..
	"background[-0.19,-0.25;9.41,9.49;crafting_formspec_bg.png^crafting_inventory_workbench.png]"..
	default.inventory_header..
	"list[current_player;main;0,4.5;9,3;9]"..
	"list[current_player;main;0,7.74;9,1;]"..
	"list[current_player;craft;1.75,0.5;3,3;]"..
	"list[current_player;craftpreview;5.75,1.5;1,1;]"..
	"listring[current_player;main]"..
	"listring[current_player;craft]"..
	"wob"

	--player:set_inventory_formspec(form)
	minetest.show_formspec(player:get_player_name(), "main", form)
end

--drop craf items and reset inventory on closing
minetest.register_on_player_receive_fields(function(player, formname, fields)
	if fields.quit then
		local formspec = player:get_inventory_formspec()
		local size = string.len(formspec)
		local marker = string.sub(formspec,size-2)
		if marker == "inv" or marker == "wob" then
			set_inventory(player)
			drop_fields(player,"craft")			
		end
	end
end)

minetest.register_on_joinplayer(function(player)
 	if minetest.setting_getbool("creative_mode") then
		dofile(minetest.get_modpath("crafting").."/creative.lua")
  	end
	--init inventory
	set_inventory(player)
	player:get_inventory():set_width("main", 9)
	player:get_inventory():set_size("main", 36)

	--set hotbar size
	player:hud_set_hotbar_itemcount(9)
	--add hotbar images
	player:hud_set_hotbar_image("crafting_hotbar.png")
 	player:hud_set_hotbar_selected_image("crafting_hotbar_selected.png")

	if show_armor then
		local armor_orginal = armor.set_player_armor
		armor.set_player_armor = function(self, player)
			armor_orginal(self, player)
			update_armor(player)
			set_inventory(player)
		end
	end
end)

minetest.register_node("crafting:workbench", {
	description = "Crafting Table",
	tiles = {"crafting_workbench_top.png", "default_wood.png", "crafting_workbench_side.png",
		"crafting_workbench_side.png", "crafting_workbench_front.png", "crafting_workbench_front.png"},
	paramtype2 = "facedir",
	paramtype = "light",
	groups = {choppy=2,oddly_breakable_by_hand=2,flammable=2},
	on_rightclick = function(pos, node, clicker, itemstack)
		set_workbench(clicker)
	end,
	sounds = default.node_sound_wood_defaults(),
})

minetest.register_craft({
	output = "crafting:workbench",
	recipe = {
		{"group:wood", "group:wood"},
		{"group:wood", "group:wood"}
	}
})