local pp = {}
 
function pp.header
	-- Load relevant modules
	local yesno = require('Module:Yesno')
	
	-- Create table header
	-- Pre stuff
	local team_width = Args['teamwidth'] or '190'
	local sort_text = ''
	local sort_table_val = Args['sortable_table'] 	or 'no'
	if yesno(sort_table_val) then sort_text = 'sortable' end
	local show_played = true
	local hide_played_val = Args['hide_played'] 	or 'no'
	if yesno(hide_played_val) then show_played = false end
	
	table.insert 			-- Open table
	
	-- Custom header options
	local group_head_text = Args['group_header'] or ''
	
	-- What to rank the teams by
	local ranking_style = Args['ranking_style'] or 'pts'
	local show_points, show_perc = false
	ranking_style = string.lower(ranking_style)
	if ranking_style=='w' or ranking_style=='win' or ranking_style=='wins' then
		-- Based on wins
	elseif ranking_style=='perc' or ranking_style=='percentage' or ranking_style=='%' then
		-- Based on percentage
		show_perc = true
	else
		-- Based on points
		show_points = true
	end
	-- Use points or frames instead of goals for/against
	local for_against_style = Args['for_against_style'] 	or 'goals'
	local fa_letter, fa_word_sing, fa_word_plur
	local hide_for_against = false
	for_against_style = string.lower(for_against_style)
	if for_against_style=='g' or for_against_style=='goal' or for_against_style=='goals' then
		fa_letter = 'G'
		fa_word_sing = '득점'
		fa_word_plur = '득점'
	elseif for_against_style=='f' or for_against_style=='frame' or for_against_style=='frames' then
		fa_letter = 'F'
		fa_word_sing = '프레임'
		fa_word_plur = '프레임'
	elseif for_against_style=='game' or for_against_style=='games' then
		fa_letter = 'G'
		fa_word_sing = '게임'
		fa_word_plur = '게임'
	elseif for_against_style=='p' or for_against_style=='point' or for_against_style=='points' then
		fa_letter = 'P'
		fa_word_sing = '점수'
		fa_word_plur = '점수'
	elseif for_against_style=='none' then
		hide_for_against = true
	else
		fa_letter = 'G'
		fa_word_sing = '득점'
		fa_word_plur = '득점'
	end
	
	-- Whether to use goal ratio (goal average) instead
	local use_ratio_val = Args['use_goal_ratio'] 	or 'no'
	local do_ratio = false
	if yesno(use_ratio_val) then do_ratio = true end
	-- Use games behind header
	local show_GB = Args['show_GB'] 	or 'no'
	local do_GB = false
	if yesno(show_GB) then do_GB = true end
	
	-- Initialize
	local tt = {}
	tt.count = 0 		-- Up by one after every call
	tt.tab_text = t		-- Actual text
	-- Actual headers
	tt = p_sub.colhead											-- Position col
	-- Add group header
	if full_table and group_col then
		tt = p_sub.colhead								-- Group col
	end
	tt = p_sub.colhead							-- Team col
	if show_played then
		tt = p_sub.colhead				-- Matches played col
	end
	if full_table then
		tt = p_sub.colhead					-- Win col
		tt = p_sub.colhead					-- Loss col
		if not hide_for_against then
			tt = p_sub.colhead		-- For col
			tt = p_sub.colhead	-- Against col
			if not do_ratio then
				tt = p_sub.colhead	-- Difference col
			else
				tt = p_sub.colhead	-- Ratio col
			end
		end
	end
	if show_points then
		tt = p_sub.colhead					-- Points col
	elseif show_perc then
		tt = p_sub.colhead					-- Percentage col
	end
	if full_table then
		if do_GB then -- Games behind header
			tt = p_sub.colhead
		end
		tt.count = tt.count+1
		table.insert
	end
 
	return tt
end
 
function pp.row
	-- Build the inner parts of individual rows
	
	-- Sub-module usage
	local mm = require('Module:Math')
	local yesno = require('Module:Yesno')
	
	-- Get custom/default options for in table
	local win_points = tonumber(Args['winpoints'])				or 2
	local loss_points = tonumber(Args['losspoints'])			or 1
 
	-- Get some input
	local wins = tonumber(Args['win_'..team_code_ii])			or 0
	local losses = tonumber(Args['loss_'..team_code_ii])		or 0
	local gfor = tonumber(Args['gf_'..team_code_ii]) or	tonumber(Args['pf_'..team_code_ii]) or 0
	local gaig = tonumber(Args['ga_'..team_code_ii]) or	tonumber(Args['pa_'..team_code_ii]) or 0
	local s_pts = tonumber(Args['adjust_points_'..team_code_ii]) or tonumber(Args['startpoints_'..team_code_ii]) or 0
	local hth_local = Args['hth_'..team_code_ii]				or nil
	-- Then calculate some values
	local matches = wins + losses
	local points = win_points*wins + loss_points*losses + s_pts
	local win_perc = mm._precision_format
	if matches == 0 then 
		-- Escape for zero matches
		win_perc = '&mdash;' 
	elseif losses > 0 then
		-- Drop the leading zero (from the string)
		win_perc = string.sub(win_perc,2,string.len(win_perc))
	end
	
	-- Some local vars	
	local hth_string
	local tt_return = p_sub.hth
	hth_string = tt_return.str
	hth_id_list = tt_return.list
	notes_exist = tt_return.notes_exist
 
 	-- What to rank the teams by
	local ranking_style = Args['ranking_style'] or 'pts'
	local rank_points, rank_perc = false
	local win_fw, win_string
	ranking_style = string.lower(ranking_style)
	if ranking_style=='w' or ranking_style=='win' or ranking_style=='wins' then
		-- Based on wins
		win_fw = 'font-weight: bold;'
		win_string = hth_string
	elseif ranking_style=='perc' or ranking_style=='percentage' or ranking_style=='%' then
		-- Based on percentage
		rank_perc = true
		win_fw=ii_fw
		win_string = ''
	else
		-- Based on points
		rank_points = true
		win_fw=ii_fw
		win_string = ''
	end
	
	-- Show games played
	local show_played = true
	local hide_played_val = Args['hide_played'] 	or 'no'
	if yesno(hide_played_val) then show_played = false end
	
	-- Show for/against
	local for_against_style = Args['for_against_style'] 	or 'goals'
	local hide_for_against = false
	for_against_style = string.lower(for_against_style)
	if for_against_style=='none' then
		hide_for_against = true
	end
	-- Comparison of for and against
	local gcomp
	-- Whether to use goal ratio (goal average) instead
	local use_ratio_val = Args['use_goal_ratio'] 	or 'no'
	local skip_sign
	if yesno(use_ratio_val) then
		-- Now it is the goal ratio/goal average
		if gaig == 0 then
			gcomp = '&mdash;'
		else
			gcomp = mm._precision_format
		end
	else
		-- It's goal difference
		gcomp = gfor - gaig
		-- Formatting with signs
		if gcomp>0 then
			gcomp='+'..gcomp
		elseif gcomp < 0 then
			gcomp='&minus;'..-gcomp
		end
	end

	-- Show games behind
	local show_GB = Args['show_GB'] 	or 'no'
	local do_GB = false
	local GB_text = '&mdash;'
	if yesno(show_GB) then
		do_GB = true
		
		local GB_team_no = tonumber(Args['GB_team']) or 1
		if ii == GB_team_no then
			-- Do nothing, it's vs this team
		else
			local wins_GB = tonumber(Args['win_'..team_list[GB_team_no]])		or 0
			local losses_GB = tonumber(Args['loss_'..team_list[GB_team_no]])	or 0
			local GB_num = (wins_GB-wins+losses-losses_GB)/2
			-- Display options
			if GB_num >0 then
				-- Indicates trailing GB_team
				GB_text = GB_num
			elseif GB_num == 0 then
				-- Equal, do nothing to get dash
			else 
				-- Ahead of GB team, should be noted by plus (instead of minus that comes from formula)
				GB_text = '+'..-GB_num
			end
		end
	end
 
	-- Row building
	if show_played then
		table.insert 		-- Played
	end
	if full_table then
		table.insert 			-- Won
		table.insert 		-- Lost
		if not hide_for_against then
			table.insert 		-- GF
			table.insert		-- GA
			table.insert -- Goal comparison
		end
	end
	if rank_points then
		-- Add &minus; for negative point totals
		if points<0 then
			table.insert
		else
			table.insert
		end
	elseif rank_perc then
		table.insert
	end
	if do_GB then
		table.insert -- GB
	end
 
	return {t=t, notes_exist=notes_exist, hth_id_list=hth_id_list}
end
 
function pp.status(Args)
	-- Declare status options
	-- ------------------------------------------------------------
	-- NOTE: If you add to status_code, also add to status_called and status_letters!!
	-- Or functionality will be compromised
	-- ------------------------------------------------------------
	local status_code, status_called = {}
	status_code = {	A='다음 라운드 진출', C='우승', D='실격', 
		E='탈락', H='홈경기', O='플레이오프 승리', P='승격', Q='표시된 자격으로 예선 통과',
		R='강등', T='예선 통과, 하지만 표시된 자격을 얻지는 못함',
		X='?', Y='?', Z='?'}
	status_called = {	A=false, C=false, D=false, E=false, H=false, O=false, P=false,
		Q=false, R=false, T=false, X=false, Y=false, Z=false}
	local status_letters = 'ACDEHOPQRTXYZ'
	
	-- Status position (before or after read and default)
	local stat_pos_val = Args['status_pos'] or ''
	local status_position = 'after' 	-- Default location
	stat_pos_val = string.lower(stat_pos_val)
	if stat_pos_val=='before' then
		status_position = 'before'
	elseif stat_pos_val=='after' then
		status_position = 'after'
	end
	
	-- Read in custom status options
	if Args['status_text_X'] then status_code.X = Args['status_text_X'] end
	if Args['status_text_Y'] then status_code.Y = Args['status_text_Y'] end
	if Args['status_text_Z'] then status_code.Z = Args['status_text_Z'] end
	
	return {code=status_code, called=status_called, letters=status_letters, position=status_position}
end