local S = minetest.get_translator("arena_lib")
local FS = minetest.formspec_escape

local function in_game_txt(arena) end
local function get_infobox_formspec() end



signs_lib.register_sign("arena_lib:sign", {
	description = S("Arena sign"),
  tiles = {
    { name = "arenalib_sign.png", backface_culling = true},
		"arenalib_sign_edge.png"
  },
	inventory_image = "arenalib_sign_icon.png",
	default_color = "8",
	entity_info = "standard",
	sounds = minetest.global_exists("default") and default.node_sound_wood_defaults() or nil,
	groups = {cracky = 3, oddly_breakable_by_hand = 3},
	allow_widefont = true,
	chars_per_line = 40,
	horiz_scaling = 0.95,
	vert_scaling = 1.38,
	number_of_lines = 5,

	-- forza carattere espanso
	on_construct = function(pos)
		minetest.get_meta(pos):set_int("widefont", 1)
	end,

	-- cartello indistruttibile se c'è un'arena assegnata
	on_dig = function(pos, node, digger)
		if minetest.get_meta(pos):get_int("arenaID") ~= 0 then return end

		minetest.node_dig(pos,node,digger)
  end,

	-- click dx apre la finestra d'informazioni
	on_rightclick = function(pos, node, clicker, itemstack, pointed_thing)
		if minetest.get_meta(pos):get_int("arenaID") == 0 then return end

		local mod = minetest.get_meta(pos):get_string("mod")
		local arenaID = minetest.get_meta(pos):get_int("arenaID")

		minetest.show_formspec(clicker:get_player_name(), "arena_lib:infobox", get_infobox_formspec(mod, arenaID, clicker))
	end,


  on_punch = function(pos, node, puncher, pointed_thing)

    local arenaID = minetest.get_meta(pos):get_int("arenaID")
    if arenaID == 0 then return end

    local mod = minetest.get_meta(pos):get_string("mod")
    local arena = arena_lib.mods[mod].arenas[arenaID]
    local p_name = puncher:get_player_name()

    if not arena then return end -- nel caso qualche cartello dovesse impallarsi, si può rompere senza far crashare

		-- se il cartello è stato spostato tipo con WorldEdit, lo aggiorno alla nuova posizione (e se c'è una partita in corso, la interrompo)
	  if not vector.equals(arena.sign, pos) then
	    local arena_name = arena.name
	    arena_lib.force_arena_ending(mod, arena, "ARENA_LIB")
	    arena_lib.disable_arena("", mod, arena_name)
	    arena_lib.set_sign("", mod, arena_name, nil, true)
	    arena_lib.set_sign("", mod, arena_name, pos)
	    arena_lib.enable_arena("", mod, arena_name)
	    minetest.chat_send_player(p_name, minetest.colorize("#e6482e", S("[!] Uh-oh, it looks like this sign has been misplaced: well, fixed, hit it again!")))
	    return end

		-- se si è già in coda nella stessa arena, esci, sennò prova ad aggiungere il giocatore
		if arena_lib.is_player_in_queue(p_name, mod) and arena_lib.get_queueID_by_player(p_name) == arenaID then
			arena_lib.remove_player_from_queue(p_name)
		else
			arena_lib.join_queue(mod, arena, p_name)
		end
  end
})



function arena_lib.update_sign(arena)

  local p_count = 0
  local t_count = #arena.teams

  -- non uso il getter perché dovrei richiamare 2 funzioni (ID e count)
  for pl, stats in pairs(arena.players) do
    p_count = p_count +1
  end

  signs_lib.update_sign(arena.sign, {text = [[
   ]] .. "\n\n" .. [[
   ]] .. arena.name .. "\n" .. [[
   ]] .. p_count .. "/".. arena.max_players * t_count .. "\n" .. [[
   ]] .. in_game_txt(arena) .. "\n" .. [[

  ]]})
end





----------------------------------------------
---------------FUNZIONI LOCALI----------------
----------------------------------------------

function in_game_txt(arena)
  local txt

	-- it's not possible to translate them => https://gitlab.com/VanessaE/signs_lib/-/issues/9
  if not arena.enabled then txt = "#dWIP"
	elseif arena.in_queue then txt = "#2Queueing"
  elseif arena.in_celebration then txt = "#4Terminating"
  elseif arena.in_loading then txt = "#4Loading"
  elseif arena.in_game then txt = "#4In progress"

  else txt = "#3Waiting" end

  return txt
end



function get_infobox_formspec(mod, arenaID, player)

	player:get_meta():set_string("arenalib_infobox_mod", mod)
	player:get_meta():set_int("arenalib_infobox_arenaID", arenaID)

	local arena = arena_lib.mods[mod].arenas[arenaID]
	local bgm_info

	if arena.bgm then
		local title = arena.bgm.title or "???"
		local author = arena.bgm.author or "???"
		bgm_info = title .. " - " .. author
	else
		bgm_info = "---"
	end

	local formspec = {
		"formspec_version[4]",
		"size[7.1,5]",
		"no_prepend[]",
		"bgcolor[;neither]",
		"style_type[image_button;border=false;bgimg=blank.png]",
		"background[0,0;1,1;arenalib_infobox.png;true]",
		-- immagini
		"image[1,0.7;1,1;arenalib_infobox_name.png]",
		"image[1,1.7;1,1;arenalib_tool_settings_nameauthor.png]",
		"image[1,3.1;1,1;arenalib_customise_bgm.png]",
		"image_button[5.9,0.7;0.5,0.5;arenalib_infobox_quit.png;close;]",
		"image_button[4.7,0.45;1,1;arenalib_infobox_spectate.png;spectate;]",
		-- scritte
		"hypertext[2.4,1.1;4,1;name;<style size=20 font=mono color=#5a5353>" .. FS(arena.name) .. "</style>]",
		"hypertext[2.4,2.15;4,1;name;<style size=20 font=mono color=#5a5353>" .. FS(arena.author) .. "</style>]",
		"hypertext[2.4,3.15;4,1;name;<global valign=middle><style size=20 font=mono color=#5a5353>" .. FS(bgm_info) .. "</style>]",
	}

	return table.concat(formspec, "")
end



------------------------------------------------
---------------GESTIONE CAMPI-----------------
----------------------------------------------

minetest.register_on_player_receive_fields(function(player, formname, fields)

	if formname ~= "arena_lib:infobox" then return end

	if fields.close then
		minetest.close_formspec(player:get_player_name(), formname)
		player:get_meta():set_string("arenalib_infobox_mod", "")
		player:get_meta():set_int("arenalib_infobox_arenaID", 0)

	elseif fields.spectate then
		local mod = player:get_meta():get_string("arenalib_infobox_mod")
		local arenaID = player:get_meta():get_int("arenalib_infobox_arenaID")
		local p_name = player:get_player_name()

		if arena_lib.is_player_in_queue(p_name) then
			arena_lib.remove_player_from_queue(p_name)
		end

		arena_lib.join_arena(mod, p_name, arenaID, true)
	end
end)