-- creative_regions mod by h3ndrik

creative_regions = {}


areas_owner_privs = minetest.settings:get("creative_regions.owner_privs") or "+creative, +fast, +fly"
areas_guest_privs = minetest.settings:get("creative_regions.guest_privs") or "-fly, -fast"
noregion_privs = minetest.settings:get("creative_regions.noregion_privs") or "-creative, +fast, -fly"
default_privs = minetest.settings:get("creative_regions.default_privs") or "+creative, +fast, +fly"


creative_regions.modpath = minetest.get_modpath("creative_regions")
dofile(creative_regions.modpath.."/region.lua")
dofile(creative_regions.modpath.."/player.lua")
dofile(creative_regions.modpath.."/chatcommands.lua")
dofile(creative_regions.modpath.."/mod_areas.lua")


function creative_regions:update_player(player)
	local name = player:get_player_name()
	local pos = vector.round(player:get_pos())

	local pmeta = player:get_meta()
--	pmeta:mark_as_private("creative_regions.active_regions")
	local player_last_active_regions = pmeta:get_string("creative_regions.active_regions") or "-1"
	local player_active_regions = "-1"
	local areas_owner = false
	local areas_guest = false
	local areas_open = false
	local smallest_region = {}
	local smallest_areas_area = {}

	if minetest.check_player_privs(name, { protection_bypass=true }) then
		--minetest.chat_send_player(name, "Changed region. You have protection_bypass priv")
		return
	end

	-- enter region
	local current_regions = self.astore:get_areas_for_pos(pos, true, true)
	for astore_id, astore_area in pairs( current_areas ) do
		local regionsize = creative_regions:get_region_size(astore_area)
		if not smallest_region.size or regionsize < smallest_region.size then
			smallest_region.id = tostring(astore_id)
			smallest_region.size = regionsize
		end
	end
	if smallest_region.id then
		player_active_regions = tostring(smallest_region.id)
	end

	-- enter areas mod area
	local a_current_areas =  {}
	if minetest.get_modpath("areas") then
		a_current_areas = areas:getAreasAtPos(pos)
		for a_id, a_area in pairs( a_current_areas ) do
			local areasize = creative_regions:get_areas_area_size(a_area)
			if not smallest_areas_area.size or areasize < smallest_areas_area.size then
				smallest_areas_area.id = tostring(a_id)
				smallest_areas_area.size = areasize
			end
			player_active_areas = player_active_areas .. ", a"..a_id
			if a_area.owner == name then
				areas_owner = true
				break
			elseif a_area.open then
				areas_open = true
				break
			else
				areas_guest = true
				--continue
			end
		end
	end

	local privstring = noregion_privs
	if smallest_region.id then
		if creative_regions.region_privs[tostring(smallest_region.id)] then
			privstring = creative_regions.region_privs[tostring(smallest_region.id)]
		else
			privstring = default_privs
		end
	end
	if areas_owner or areas_open then
		privstring = privstring .. ", " .. areas_owner_privs
	elseif areas_guest then
		privstring = privstring .. ", " .. areas_guest_privs
		for _, a in pairs(string.split(player_active_regions, ",")) do
			a = a:trim()
			if string.sub(a, 1, 1) == "a" then
				if creative_regions.region_privs[a] then
					privstring = privstring .. ", " .. creative_regions.region_privs[a]
				end
			end
		end
		if smallest_areas_area.size and smallest_region.size then
			if smallest_region.size <= smallest_areas_area.size then
				privstring = privstring .. ", " .. creative_regions.region_privs[tostring(smallest_region.id)]
			end
		end
	end

	if player_active_regions ~= player_last_active_regions then
		creative_regions:player_enter_region(player, privstring)
		pmeta:set_string("creative_regions.active_regions", player_active_regions)
	end

--	print(dump(pmeta:to_table()))
end


creative_regions:load_regions()

local timer = 0
minetest.register_globalstep(function(dtime)
	timer = timer + dtime
	if timer >= 1 then
		for _, player in pairs(minetest.get_connected_players()) do
			creative_regions:update_player(player)
		end
	end
end)