-- Copyright (c) 2013-18 rubenwardy. MIT.

local S = awards.gettext

local function order_awards(name)
	local done = {}
	local retval = {}
	local player = awards.player(name)
	if player and player.unlocked then
		for _,got in pairs(player.unlocked) do
			if awards.registered_awards[got] then
				done[got] = true
				table.insert(retval,{name=got,got=true})
			end
		end
	end
	for _,def in pairs(awards.registered_awards) do
		if not done[def.name] then
			table.insert(retval,{name=def.name,got=false})
		end
	end
	return retval
end

function awards.get_formspec(name, to, sid)
	local formspec = ""
	local listofawards = order_awards(name)
	local playerdata = awards.player(name)

	if #listofawards == 0 then
		formspec = formspec .. "label[3.9,1.5;"..minetest.formspec_escape(S("Error: No awards available.")).."]"
		formspec = formspec .. "button_exit[4.2,2.3;3,1;close;"..minetest.formspec_escape(S("OK")).."]"
		return formspec
	end

	-- Sidebar
	if sid then
		local item = listofawards[sid+0]
		local def = awards.registered_awards[item.name]

		if def and def.secret and not item.got then
			formspec = formspec .. "label[1,2.75;"..
					minetest.formspec_escape(S("(Secret Award)")).."]"..
					"image[1,0;3,3;awards_unknown.png]"
			if def and def.description then
				formspec = formspec	.. "textarea[0.25,3.25;4.8,1.7;;"..
						minetest.formspec_escape(
								S("Unlock this award to find out what it is."))..";]"
			end
		else
			local title = item.name
			if def and def.title then
				title = def.title
			end
			local status = "%s"
			if item.got then
				status = S("%s (got)")
			end

      formspec = formspec .. "textarea[0.5,2.7;4.8,1.45;;" ..
				string.format(status, minetest.formspec_escape(title)) ..
				";]"

			if def and def.icon then
				formspec = formspec .. "image[1,0;3,3;" .. def.icon .. "]"
			end
			local barwidth = 4.6
			local perc = nil
			local label = nil
			if def.getProgress and playerdata then
				local res = def:getProgress(playerdata)
				perc = res.perc
				label = res.label
			end
			if perc then
				if perc > 1 then
					perc = 1
				end
				formspec = formspec .. "background[0,4.80;" .. barwidth ..",0.25;awards_progress_gray.png;false]"
				formspec = formspec .. "background[0,4.80;" .. (barwidth * perc) ..",0.25;awards_progress_green.png;false]"
				if label then
					formspec = formspec .. "label[1.75,4.63;" .. minetest.formspec_escape(label) .. "]"
				end
			end
			if def and def.description then
				formspec = formspec	.. "textarea[0.25,3.75;4.8,1.7;;"..minetest.formspec_escape(def.description)..";]"
			end
		end
	end

	-- Create list box
	formspec = formspec .. "textlist[4.75,0;6,5;awards;"
	local first = true
	for _,award in pairs(listofawards) do
		local def = awards.registered_awards[award.name]
		if def then
			if not first then
				formspec = formspec .. ","
			end
			first = false

			if def.secret and not award.got then
				formspec = formspec .. "#707070"..minetest.formspec_escape(S("(Secret Award)"))
			else
				local title = award.name
				if def and def.title then
					title = def.title
				end
				if award.got then
					formspec = formspec .. minetest.formspec_escape(title)
				else
					formspec = formspec .. "#ACACAC".. minetest.formspec_escape(title)
				end
			end
		end
	end
	return formspec .. ";"..sid.."]"
end


function awards.show_to(name, to, sid, text)
	if name == "" or name == nil then
		name = to
	end
	local data = awards.player(to)
	if name == to and data.disabled then
		minetest.chat_send_player(S("You've disabled awards. Type /awards enable to reenable."))
		return
	end
	if text then
		local listofawards = order_awards(name)
		if #listofawards == 0 then
			minetest.chat_send_player(to, S("Error: No awards available."))
			return
		elseif not data or not data.unlocked  then
			minetest.chat_send_player(to, S("You have not unlocked any awards."))
			return
		end
		minetest.chat_send_player(to, string.format(S("%s’s awards:"), name))

		for _, str in pairs(data.unlocked) do
			local def = awards.registered_awards[str]
			if def then
				if def.title then
					if def.description then
						minetest.chat_send_player(to, string.format(S("%s: %s"), def.title, def.description))
					else
						minetest.chat_send_player(to, def.title)
					end
				else
					minetest.chat_send_player(to, str)
				end
			end
		end
	else
		if sid == nil or sid < 1 then
			sid = 1
		end
		local deco = ""
		if minetest.global_exists("default") then
			deco = default.gui_bg .. default.gui_bg_img
		end
		-- Show formspec to user
		minetest.show_formspec(to,"awards:awards",
			"size[11,5]" .. deco ..
			awards.get_formspec(name, to, sid))
	end
end

if minetest.get_modpath("sfinv") then
	sfinv.register_page("awards:awards", {
		title = S("Awards"),
		on_enter = function(self, player, context)
			context.awards_idx = 1
		end,
		get = function(self, player, context)
			local name = player:get_player_name()
			return sfinv.make_formspec(player, context,
				awards.get_formspec(name, name, context.awards_idx or 1),
				false, "size[11,5]")
		end,
		on_player_receive_fields = function(self, player, context, fields)
			if fields.awards then
				local event = minetest.explode_textlist_event(fields.awards)
				if event.type == "CHG" then
					context.awards_idx = event.index
					sfinv.set_player_inventory_formspec(player, context)
				end
			end
		end
	})
end

if minetest.get_modpath("unified_inventory") ~= nil then
	unified_inventory.register_button("awards", {
		type = "image",
		image = "awards_ui_icon.png",
		tooltip = S("Awards"),
		action = function(player)
			local name = player:get_player_name()
			awards.show_to(name, name, nil, false)
		end,
	})
end