obsidianmese = {}
-- save how many bullets owner fired
obsidianmese.fired_table = {}
local enable_particles = minetest.settings:get_bool("enable_particles")

-- particles
function obsidianmese.add_effects(pos)
	if not enable_particles then return end

	return minetest.add_particlespawner({
		amount = 2,
		time = 0,
		minpos = {x=pos.x-1, y=pos.y+0.5, z=pos.z-1},
		maxpos = {x=pos.x+1, y=pos.y+1.5, z=pos.z+1},
		minvel = {x=-0.1, y=-0.1, z=-0.1},
		maxvel = {x=0.3,  y=-0.3,  z=0.3},
		minacc = vector.new(),
		maxacc = vector.new(),
		minexptime = 1,
		maxexptime = 5,
		minsize = .5,
		maxsize = 1.5,
		texture = "obsidianmese_chest_particle.png",
	})
end

-- check for player near by to activate particles
function obsidianmese.check_around_radius(pos)
	local player_near = false

	for _,obj in ipairs(minetest.get_objects_inside_radius(pos, 16)) do
		if obj:is_player() then
			player_near = true
			break
		end
	end

	return player_near
end

-- check if within physical map limits (-30911 to 30927)
function obsidianmese.within_limits(pos, radius)
	if  (pos.x - radius) > -30913
	and (pos.x + radius) <  30928
	and (pos.y - radius) > -30913
	and (pos.y + radius) <  30928
	and (pos.z - radius) > -30913
	and (pos.z + radius) <  30928 then
		return true -- within limits
	end

	return false -- beyond limits
end

-- remember how many bullets player fired i.e. {SaKeL: 1,...}
function obsidianmese.sync_fired_table(owner)
	if obsidianmese.fired_table[owner] ~= nil then
		obsidianmese.fired_table[owner] = obsidianmese.fired_table[owner] - 1
		-- print(minetest.serialize(fired_table))
	end
end

function obsidianmese.fire_sword(itemstack, user, pointed_thing)
	if not user:get_player_control().RMB then return end

	local speed = 8
	local pos = user:getpos()
	local v = user:get_look_dir()
	local player_name = user:get_player_name()

	if obsidianmese.fired_table[player_name] ~= nil then

		if obsidianmese.fired_table[player_name] >= 1 then
			minetest.chat_send_player(player_name, "You can shoot 1 shot at the time!")
			return
		else
			obsidianmese.fired_table[player_name] = obsidianmese.fired_table[player_name] + 1
		end

	else
		obsidianmese.fired_table[player_name] = 1
	end
	
	print(minetest.serialize(obsidianmese.fired_table))

	-- adjust position from where the bullet will be fired based on the look direction
	-- prevents hitting the node when looking/shooting down from the edge 
	pos.x = pos.x + v.x
	pos.z = pos.z + v.z
	if v.y > 0.4 or v.y < -0.4 then
		pos.y = pos.y + v.y
	else
		pos.y = pos.y + 1
	end

	-- play shoot attack sound
	minetest.sound_play("throwing_sound", {
		pos = pos,
		gain = 1.0, -- default
		max_hear_distance = 10,
	})

	local obj = minetest.add_entity(pos, "obsidianmese:sword_bullet")
	local ent = obj:get_luaentity()

	if ent then
		ent._owner = player_name
		
		v.x = v.x * speed
		v.y = v.y * speed
		v.z = v.z * speed

		obj:setvelocity(v)
	end

	-- wear tool
	local wdef = itemstack:get_definition()
	itemstack:add_wear(65535 / (150 - 1))
	-- Tool break sound
	if itemstack:get_count() == 0 and wdef.sound and wdef.sound.breaks then
		minetest.sound_play(wdef.sound.breaks, {pos = pointed_thing.above, gain = 0.5})
	end
	return itemstack
end

function obsidianmese.add_wear(itemstack)
	-- wear tool
	local wdef = itemstack:get_definition()
	itemstack:add_wear(65535 / (400 - 1))
	-- Tool break sound
	if itemstack:get_count() == 0 and wdef.sound and wdef.sound.breaks then
		minetest.sound_play(wdef.sound.breaks, {pos = pointed_thing.above, gain = 0.5})
	end

	return itemstack
end

-- prevent pick axe engraved of placing item when clicken on one of the items from this list
local pick_engraved_place_blacklist = {
	["xdecor:itemframe"] = true
}

function obsidianmese.pick_engraved_place(itemstack, placer, pointed_thing)
	local idx = placer:get_wield_index() + 1 -- item to right of wielded tool
	local inv = placer:get_inventory()
	local stack = inv:get_stack("main", idx) -- stack to right of tool
	local stack_name = stack:get_name()
	local under = pointed_thing.under
	local above = pointed_thing.above
	local node_under = minetest.get_node(under)
	local udef = {}
	local temp_stack = ""

	-- handle nodes
	if pointed_thing.type == "node" then
		local pos =  minetest.get_pointed_thing_position(pointed_thing)
		local pointed_node = minetest.get_node(pos)

		-- check if have to use default on_place first
		if pick_engraved_place_blacklist[pointed_node.name] ~= nil then
			-- print("minetest.item_place")
			return minetest.item_place(itemstack, placer, pointed_thing)
		end
		
		if pointed_node ~= nil and stack_name ~= "" then
			local stack_def = minetest.registered_nodes[stack_name]
			local stack_name_split = string.split(stack_name, ":")
			local stack_mod = stack_name_split[1]

			udef = minetest.registered_nodes[stack_name]

			-- not for farming - that should be part of a hoe
			if stack_mod ~= "farming" or stack_mod ~= "farming_addons" then
				if udef and udef.on_place then
					temp_stack = udef.on_place(stack, placer, pointed_thing) or stack
					inv:set_stack("main", idx, temp_stack)

					-- itemstack = obsidianmese.add_wear(itemstack)
					return itemstack
				elseif udef and udef.on_use then
					temp_stack = udef.on_use(stack, placer, pointed_thing) or stack
					inv:set_stack("main", idx, temp_stack)

					-- itemstack = obsidianmese.add_wear(itemstack)
					return itemstack
				end
			end

			-- handle farming and farming_addons placement
			-- if stack_mod == "farming" or stack_mod == "farming_addons" then
			-- 	print("farming.place_seed")
				-- udef = minetest.registered_nodes[stack_name]

				-- if udef and udef.on_place then
				-- 	temp_stack = udef.on_place(stack, placer, pointed_thing) or stack
				-- elseif udef and udef.on_use then
				-- 	temp_stack = udef.on_use(stack, placer, pointed_thing) or stack
				-- end

				-- inv:set_stack("main", idx, temp_stack)

				-- itemstack = obsidianmese.add_wear(itemstack)
				-- return itemstack
			-- end

			-- handle default torch placement
			if stack_name == "default:torch" then
				local wdir = minetest.dir_to_wallmounted(vector.subtract(under, above))
				local fakestack = stack

				if wdir == 0 then
					fakestack:set_name("default:torch_ceiling")
				elseif wdir == 1 then
					fakestack:set_name("default:torch")
				else
					fakestack:set_name("default:torch_wall")
				end

				temp_stack = minetest.item_place(fakestack, placer, pointed_thing, wdir)

				temp_stack:set_name("default:torch")
				inv:set_stack("main", idx, temp_stack)

				-- itemstack = obsidianmese.add_wear(itemstack)
				return itemstack
			end
		end
		-- if everything else fails use default on_place
		stack = minetest.item_place(stack, placer, pointed_thing)
		inv:set_stack("main", idx, stack)
		return itemstack
	end
end

function obsidianmese.shovel_place(itemstack, placer, pointed_thing)
	local pt = pointed_thing

	-- check if pointing at a node
	if not pt then
		return
	end
	if pt.type ~= "node" then
		return
	end

	local under = minetest.get_node(pt.under)
	local p = {x=pt.under.x, y=pt.under.y+1, z=pt.under.z}
	local above = minetest.get_node(p)

	-- return if any of the nodes is not registered
	if not minetest.registered_nodes[under.name] then
		return
	end
	if not minetest.registered_nodes[above.name] then
		return
	end

	-- check if the node above the pointed thing is air
	if above.name ~= "air" then
		return
	end

	if minetest.is_protected(pt.under, placer:get_player_name()) then
		minetest.record_protection_violation(pt.under, placer:get_player_name())
		return
	end

	-- dirt path
	if under.name == "default:dirt" and
		 under.name ~= "obsidianmese:path_dirt" then
		minetest.set_node(pt.under, {name = "obsidianmese:path_dirt"})

	-- grass path
	elseif (under.name == "default:dirt_with_grass" or
				 under.name == "default:dirt_with_grass_footsteps" or
				 under.name == "default:dirt_with_dry_grass" or
				 under.name == "default:dirt_with_snow" or
				 under.name == "default:dirt_with_rainforest_litter") and
				 under.name ~= "obsidianmese:path_grass" then
		minetest.set_node(pt.under, {name = "obsidianmese:path_grass"})

	-- sand path
	elseif under.name == "default:sand" and
				 under.name ~= "obsidianmese:path_sand" then
		minetest.set_node(pt.under, {name = "obsidianmese:path_sand"})

	-- desert sand path
	elseif under.name == "default:desert_sand" and
				 under.name ~= "obsidianmese:path_desert_sand" then
		minetest.set_node(pt.under, {name = "obsidianmese:path_desert_sand"})

	-- silver sand path
	elseif under.name == "default:silver_sand" and
				 under.name ~= "obsidianmese:path_silver_sand" then
		minetest.set_node(pt.under, {name = "obsidianmese:path_silver_sand"})

	-- snow path
	elseif under.name == "default:snowblock" and
				 under.name ~= "obsidianmese:path_snowblock" then
		minetest.set_node(pt.under, {name = "obsidianmese:path_snowblock"})

	else
		return
	end

	-- play sound
	minetest.sound_play("default_dig_crumbly", {
		pos = pt.under,
		gain = 0.5
	})
	-- add wear
	itemstack = obsidianmese.add_wear(itemstack)
	return itemstack
end