local p = {}

local teamBracket = require('Module:Team bracket').main

function p._teamBracket(frame, template, subs, defs)
	args = {}
	-- assign defaults
	for k, v in pairs(defs) do
		args[k] = v
	end
	-- figure out parameters from template name
	teams = tonumber(mw.ustring.match(template or '', "^(%d*)Team"))
	if not teams then
		teams = mw.ustring.match(template or '', "^(%d*)Round")
	elseif teams <= 2 then
		args.rounds = args.rounds or 1
	elseif teams <= 4 then
		args.rounds = args.rounds or 2
	elseif teams <= 8 then
		args.rounds = args.rounds or 3
	elseif teams <= 16 then
		args.rounds = args.rounds or 4
	end
	tennis = mw.ustring.match(template or '', "-Tennis(%d*)") 
	if tennis then
		args.sets = args.sets or tennis
		args.seeds = args.seeds or 'yes'
		args.nowrap = args.nowrap or 'yes'
	end
	if string.find(template, "-Compact") then
		args.compact = args.compact or 'yes'
	end
	-- get args and alternative args
	for k, v in pairs(frame.args) do
		if subs[k] then
			args[subs[k]] = v
		else
			args[k] = v
		end
	end
	--return template
	return require('Module:Team bracket').main(frame:newChild{title = ("Template:" .. template), args = args})
end

function p.FourTeamBracket(frame) 
	return p._teamBracket(frame, '4TeamBracket', {
		group1 = "RD1-group1"
	}, {
		autoseeds = "y",
		['RD1-group1'] = ""
	})
end
p['4TeamBracket'] = p.FourTeamBracket

function p.FourTeamBracketTennis3(frame) 
	return p._teamBracket(frame, '4TeamBracket-Tennis3', {}, {
		RD2 = "Final",
		['team-width'] = 125
	})
end
p['4TeamBracket-Tennis3'] = p.FourTeamBracketTennis3

function p.FourTeamBracketTennis5(frame) 
	return p._teamBracket(frame, '4TeamBracket-Tennis5', {}, {
		seeds = '',
		RD1 = "Quarterfinals",
		RD2 = "Semifinals",
		['team-width'] = 125,
		['RD1-seed1'] = '',
		['RD1-seed2'] = '',
		['RD1-seed3'] = '',
		['RD1-seed4'] = '',
	})
end
p['4TeamBracket-Tennis5'] = p.FourTeamBracketTennis5

function p.FourTeamBracketTennis35(frame) 
	return p._teamBracket(frame, '4TeamBracket-Tennis35', {}, {
		sets = "3/5",
		RD1 = "Semifinals",
		RD2 = "Final",
		['RD1-seed1'] = '',
		['RD1-seed2'] = '',
		['RD1-seed3'] = '',
		['RD1-seed4'] = '',
	})
end
p['4TeamBracket-Tennis35'] = p.FourTeamBracketTennis35

function p.SixTeamBracket(frame)
	stepdown = require('Module:yesno')(frame.args.stepdown)
	return p._teamBracket(frame, '6TeamBracket', {
		group1 = "RD1-group1",
		group2 = "RD1-group2",
		group3 = "RD2-group1",
	}, {
		compact = "y",
		seeds = "y",
		byes = '',
		['RD1-omit'] = stepdown and "3/4/7/8" or "1/2/5/6",
		['RD1-group1'] = "",
		['RD1-group2'] = "",
		['RD2-group1'] = "",
		['RD1-seed1'] = 4,
		['RD1-seed2'] = 5,
		['RD1-seed3'] = 3,
		['RD1-seed4'] = 6,
		['RD2-seed1'] = stepdown and '' or 1,
		['RD2-seed2'] = stepdown and 1 or '',
		['RD2-seed3'] = stepdown and '' or 2,
		['RD2-seed4'] = stepdown and 2 or '',
	})
end
p['6TeamBracket'] = p.SixTeamBracket

function p.SevenTeamBracket(frame)
	return p._teamBracket(frame, '7TeamBracket', {
		group1 = "RD1-group1",
		group2 = "RD1-group2",
		group3 = "RD2-group1",
		['RD1-seed01'] = 'RD1-seed1',
		['RD1-seed02'] = 'RD1-seed2',
		['RD1-seed03'] = 'RD1-seed3',
		['RD1-seed04'] = 'RD1-seed4',
		['RD1-seed05'] = 'RD1-seed5',
		['RD1-seed06'] = 'RD1-seed6',
		['RD2-seed01'] = 'RD2-seed1',
		['RD1-team01'] = 'RD1-team1',
		['RD1-team02'] = 'RD1-team2',
		['RD1-team03'] = 'RD1-team3',
		['RD1-team04'] = 'RD1-team4',
		['RD1-team05'] = 'RD1-team5',
		['RD1-team06'] = 'RD1-team6',
	}, {
		['RD1-omit'] = "1/2",
		byes = 1,
		['RD1-group1'] = "",
		['RD1-group2'] = "",
		['RD2-group1'] = "",
		['RD1-seed1'] = 4,
		['RD1-seed2'] = 5,
		['RD1-seed3'] = 2,
		['RD1-seed4'] = 7,
		['RD1-seed5'] = 3,
		['RD1-seed6'] = 6,
		['RD2-seed1'] = 1,
		['RD1-team1'] = '&nbsp;',
		['RD1-team2'] = '&nbsp;',
		['RD1-team3'] = '&nbsp;',
		['RD1-team4'] = '&nbsp;',
		['RD1-team5'] = '&nbsp;',
		['RD1-team6'] = '&nbsp;',

	})
end
p['7TeamBracket'] = p.SevenTeamBracket

function p.EightTeamBracket(frame) 
	return p._teamBracket(frame, '8TeamBracket', {
		group1 = 'RD1-group1',
		group2 = 'RD1-group2',
		group3 = 'RD2-group1',
		['RD1-seed01'] = 'RD1-seed1',
		['RD1-seed02'] = 'RD1-seed2',
		['RD1-seed03'] = 'RD1-seed3',
		['RD1-seed04'] = 'RD1-seed4',
		['RD1-seed05'] = 'RD1-seed5',
		['RD1-seed06'] = 'RD1-seed6',
		['RD1-seed07'] = 'RD1-seed7',
		['RD1-seed08'] = 'RD1-seed8',
	}, {
		['RD1-seed1'] = 1,
		['RD1-seed2'] = 8,
		['RD1-seed3'] = 4,
		['RD1-seed4'] = 5,
		['RD1-seed5'] = 2,
		['RD1-seed6'] = 7,
		['RD1-seed7'] = 3,
		['RD1-seed8'] = 6,
	})
end
p['8TeamBracket'] = p.EightTeamBracket

function p.EightTeamBracketByes(frame)
	return p._teamBracket(frame, '8TeamBracket-Byes', {
		group1 = "RD1-group1",
		group2 = "RD1-group2",
		group3 = "RD2-group1",
		Consol = "RD3b"
	}, {
		seeds = 'yes',
		byes = 1,
		['team-width'] = '11em',
		['score-width'] = '2em',
		['RD1-group1'] = '',
		['RD1-group2'] = '',
		['RD2-group1'] = '',
		RD3b = frame.args['RD3-team3'] and "Third place" or ""
	})
end
p['3RoundBracket-Byes'] = p.EightTeamBracketByes
p['8TeamBracket-Byes'] = p.EightTeamBracketByes

function p.EightTeamBracketTennis3(frame) 
	return p._teamBracket(frame, '8TeamBracket-Tennis3', {}, {
		RD1 = 'Quarterfinals',
		RD2 = 'Semifinals',
		RD3 = 'Final',
		['team-width'] = 140,
		['RD1-seed1'] = 1,
		['RD1-seed2'] = 8,
		['RD1-seed3'] = 4,
		['RD1-seed4'] = 5,
		['RD1-seed5'] = 3,
		['RD1-seed6'] = 6,
		['RD1-seed7'] = 2,
		['RD1-seed8'] = 7,
	})
end
p['8TeamBracket-Tennis3'] = p.EightTeamBracketTennis3

function p.EightTeamBracketTennis5(frame) 
	return p._teamBracket(frame, '8TeamBracket-Tennis5', {}, {
		RD1 = 'Quarterfinals',
		RD2 = 'Semifinals',
		RD3 = 'Final',
	})
end
p['8TeamBracket-Tennis5'] = p.EightTeamBracketTennis5

function p.SixteenTeamBracket(frame) 
	return p._teamBracket(frame, '16TeamBracket', {
		subgroup1 = 'RD1-group1',
		subgroup2 = 'RD1-group2',
		subgroup3 = 'RD1-group3',
		subgroup4 = 'RD1-group4',
		group1 = 'RD2-group1',
		group2 = 'RD2-group2',
		group3 = 'RD3-group1',
		['RD1-seed01'] = 'RD1-seed1',
		['RD1-seed02'] = 'RD1-seed2',
		['RD1-seed03'] = 'RD1-seed3',
		['RD1-seed04'] = 'RD1-seed4',
		['RD1-seed05'] = 'RD1-seed5',
		['RD1-seed06'] = 'RD1-seed6',
		['RD1-seed07'] = 'RD1-seed7',
		['RD1-seed08'] = 'RD1-seed8',
		['RD1-seed09'] = 'RD1-seed9',
	}, {
		['RD1-seed1'] = 1,
		['RD1-seed2'] = 16,
		['RD1-seed3'] = 8,
		['RD1-seed4'] = 9,
		['RD1-seed5'] = 5,
		['RD1-seed6'] = 12,
		['RD1-seed7'] = 4,
		['RD1-seed8'] = 13,
		['RD1-seed9'] = 6,
		['RD1-seed10'] = 11,
		['RD1-seed11'] = 3,
		['RD1-seed12'] = 14,
		['RD1-seed13'] = 7,
		['RD1-seed14'] = 10,
		['RD1-seed15'] = 2,
		['RD1-seed16'] = 15,
	})
end
p['16TeamBracket'] = p.SixteenTeamBracket

function p.SixteenTeamBracketByes(frame)
	return p._teamBracket(frame, '16TeamBracket-Byes', {
		group1 = "RD1-group1",
		group2 = "RD2-group2",
	}, {
		seeds = 'yes',
		byes = 1,
		RD1 = 'First round',
		RD2 = 'Second round',
		RD3 = 'Semifinals',
		RD4 = 'Final',
		['team-width'] = '11em',
		['score-width'] = '2em',
		['RD1-group1'] = '',
		['RD2-group2'] = '',
	})
end
p['4RoundBracket-Byes'] = p.SixteenTeamBracketByes
p['16TeamBracket-Byes'] = p.SixteenTeamBracketByes

function p.SixteenTeamBracketTennis3(frame) 
	return p._teamBracket(frame, '16TeamBracket-Tennis3', {}, {
		['team-width'] = 140,
		['score-width'] = 25,
		RD1 = 'First round',
		RD2 = 'Quarterfinals',
		RD3 = 'Semifinals',
		RD4 = 'Final',
	})
end
p['16TeamBracket-Tennis3'] = p.SixteenTeamBracketTennis3

function p.SixteenTeamBracketCompactTennis3(frame) 
	return p._teamBracket(frame, '16TeamBracket-Compact-Tennis3', {}, {
		RD1 = '1st round',
		RD2 = '2nd round',
	})
end
p['16TeamBracket-Compact-Tennis3'] = p.SixteenTeamBracketCompactTennis3

function p.SixteenTeamBracketCompactTennis3Byes(frame) 
	return p._teamBracket(frame, '16TeamBracket-Compact-Tennis3-Byes', {}, {
		byes = 2,
		['seed-width'] = 25,
		['team-width'] = 150,
		RD1 = '1st round',
		RD2 = '2nd round',
		RD3 = 'Semifinals',
		RD4 = 'Final',
	})
end
p['16TeamBracket-Compact-Tennis3-Byes'] = p.SixteenTeamBracketCompactTennis3Byes
p['4RoundBracket-Compact-Tennis3-Byes'] = p.SixteenTeamBracketCompactTennis3Byes

function p.SixteenTeamBracketTennis5(frame) 
	return p._teamBracket(frame, '16TeamBracket-Tennis5', {}, {
		RD1 = 'First round',
		RD2 = 'Quarterfinals',
		RD3 = 'Semifinals',
		RD4 = 'Final',
		['seed-width'] = 25,
		['team-width'] = 150,
		['score-width'] = 12,
	})
end
p['16TeamBracket-Tennis5'] = p.SixteenTeamBracketTennis5

function p.SixteenTeamBracketCompactTennis5(frame) 
	return p._teamBracket(frame, '16TeamBracket-Compact-Tennis5', {}, {
		RD1 = 'First round',
		RD2 = 'Second round',
		RD3 = 'Third round',
		RD4 = 'Fourth round',
	})
end
p['16TeamBracket-Compact-Tennis5'] = p.SixteenTeamBracketCompactTennis5

function p.SixteenTeamBracketCompactTennis5Byes(frame) 
	return p._teamBracket(frame, '16TeamBracket-Compact-Tennis5-Byes', {}, {
		byes = 1,
		RD1 = 'First round',
		RD2 = 'Second round',
		RD3 = 'Semifinals',
		RD4 = 'Final',
	})
end
p['16TeamBracket-Compact-Tennis5-Byes'] = p.SixteenTeamBracketCompactTennis5Byes
p['4RoundBracket-Compact-Tennis5-Byes'] = p.SixteenTeamBracketCompactTennis5Byes

return p