Module:TeamBracket

-- -- This module will implement --

local p = {} local args local rounds local padding local showSeeds

local function getArgs(frame) local parent = frame:getParent; local args = parent.args; for k,v in pairs(frame.args) do		args[k] = v	end return args; end

function getSeeds local seeds = {1, 2} local count = 2 local before = false for r = 2, rounds do		local max = math.pow(2, r)		for i = 1, count do			local pos = i * 2 if before then pos = pos - 1 end table.insert(seeds, pos, max - seeds[i * 2 - 1] + 1) before = not before end count = count * 2 end return seeds end

function addTableRow(tbl) return tbl:tag('tr') end

function addBlank(row, width) local cell = row:tag('td') if width then cell:css('width', width) end return cell end

function addPath(rows, index, round, top, left) local prop = top and 'border-bottom-width' or 'border-top-width' if left and round == 1 then addBlank(rows[index]):css('height', '7px') addBlank(rows[index + 1]):css('height', '7px') return nil else local cell = addBlank(rows[index]) :attr('rowspan', '2') :css('border-width', '0') :css('border-style', 'solid') :css('border-color', 'black') if left or round < rounds and not left then cell:css(prop, '2px') end return cell end end

function addCompactPath(rows, index, round, top, left) local prop = top and 'border-bottom-width' or 'border-top-width' if left and round == 1 then addBlank(rows[index]) return nil else local cell = addBlank(rows[index]) :css('border-width', '0') :css('border-style', 'solid') :css('border-color', 'black') if left or round < rounds and not left then cell:css(prop, '2px') end return cell end end

function getWidth(param, default) local arg = args[param .. '-width'] if not arg or string.len(arg) == 0 then arg = default end if tonumber(arg) ~= nil then arg = arg .. 'px' end return arg end

function getTeamArg(round, type, team) return args[getTeamArgName(round, type, team)] end

function getTeamArgName(round, type, team) return string.format('RD%d-%s' .. padding, round, type, team) end

function getRoundName(round) local name = args['RD' .. round] if name and string.len(name) > 0 then return name end local roundFromLast = rounds - round + 1 if roundFromLast == 1 then return "Finals" elseif roundFromLast == 2 then return "Semifinals" elseif roundFromLast == 3 then return "Quarterfinals" else return "Round of " .. math.pow(2, roundFromLast) end end

function renderTeam(row, round, team, top, compact) local seedCell local seedArg = getTeamArg(round, 'seed', team) -- seed value for the paired team local pairSeedArg = getTeamArg(round, 'seed',		team % 2 == 0 and team - 1 or team + 1) -- show seed if seed is defined for either or both local showSeed = seedArg and string.len(seedArg) > 0 or pairSeedArg and string.len(pairSeedArg) > 0 if showSeed and showSeeds then seedCell = row:tag('td') :css('text-align', 'center') :css('background-color', '#f2f2f2') :css('border-color', '#aaa') :css('border-style', 'solid') :css('border-top-width', '1px') :css('border-left-width', '1px') :css('border-right-width', '1px') :css('border-bottom-width', '0') :wikitext(seedArg) :newline end

local teamArg = getTeamArg(round, 'team', team) if not teamArg or string.len(teamArg) == 0 then teamArg = ' ' end local teamCell = row:tag('td') :css('background-color', '#f9f9f9') :css('border-color', '#aaa') :css('border-style', 'solid') :css('border-top-width', '1px') :css('border-left-width', '1px') :css('border-right-width', '0') :css('border-bottom-width', '0') :css('padding', '0 2px') :wikitext(teamArg) :newline if not showSeed and showSeeds then teamCell:attr('colspan', '2') end

local scoreCell = row:tag('td') :css('text-align', 'center') :css('border-color', '#aaa') :css('border-style', 'solid') :css('border-top-width', '1px') :css('border-left-width', '1px') :css('border-right-width', '1px') :css('border-bottom-width', '0') :css('background-color', '#f9f9f9') :wikitext(getTeamArg(round, 'score', team)) :newline

if not compact then if seedCell then seedCell:attr('rowspan', '2') :css('border-bottom-width', '1px') end scoreCell:attr('rowspan', '2') :css('border-bottom-width', '1px') teamCell:attr('rowspan', '2') :css('border-right-width', '1px') :css('border-bottom-width', '1px') else if not top then if seedCell then seedCell:css('border-bottom-width', '1px') end teamCell:css('border-bottom-width', '1px') scoreCell:css('border-bottom-width', '1px') end end end

function renderRound(rows, count, r)	local teams = math.pow(2, rounds - r + 1) local step = count / teams local topTeam = true -- is top row in match-up local topPair = true -- is top match-up in pair of match-ups local team = 1 for i = 1, count, step do		local offset, height, blank -- leave room for groups for teams other than first and last if team == 1 or team == teams then offset = topTeam and i or i + 2 height = step - 2 else offset = topTeam and i + 1 or i + 2 height = step - 3 end if height > 0 then blank = addBlank(rows[offset]) :attr('colspan', showSeeds and '5' or '4') :attr('rowspan', height) :css('border-color', 'black') :css('border-style', 'solid') :css('border-width', '0') end -- add bracket local j = topTeam and i + step - 2 or i		-- add left path addPath(rows, j, r, topTeam, true) renderTeam(rows[j], r, team, topTeam, false) local rightPath = addPath(rows, j, r, topTeam, false) if not topTeam then topPair = not topPair end if not topPair and r < rounds then if blank then blank:css('border-right-width', '2px') end rightPath:css('border-right-width', '2px') end team = team + 1 topTeam = not topTeam end end

function renderCompactRound(rows, count, r)	local teams = math.pow(2, rounds - r + 1) local step = count / teams local topTeam = true -- is top row in match-up local topPair = true -- is top match-up in pair of match-ups local team = 1

for i = 1, count, step do		local offset, height, blank -- empty space above or below local offset = topTeam and i or i + 1 local height = step - 1

if height > 0 then blank = addBlank(rows[offset]) :attr('colspan', showSeeds and '5' or '4') :css('border-color', 'black') :css('border-style', 'solid') :css('border-width', '0') :attr('rowspan', height) end -- add bracket local j = topTeam and i + step - 1 or i		-- add left path addCompactPath(rows, j, r, topTeam, true) renderTeam(rows[j], r, team, topTeam, true) local rightPath = addCompactPath(rows, j, r, topTeam, false) if not topTeam then topPair = not topPair end if not topPair and r < rounds then if blank then blank:css('border-right-width', '2px') end rightPath:css('border-right-width', '2px') end team = team + 1 topTeam = not topTeam end end

function renderGroups(rows, count, round) local roundFromLast = rounds - round + 1 local groups = math.pow(2, roundFromLast - 2) local step = count / groups local group = 1 for i = step / 2, count, step do local name = 'RD' .. round .. '-group' .. group addBlank(rows[i]):css('height', '7px') addBlank(rows[i + 1]):css('height', '7px') addBlank(rows[i]) :attr('rowspan', '2') :attr('colspan', (showSeeds and 5 or 4) * round - 1) :css('text-align', 'center') :css('border-color', 'black') :css('border-style', 'solid') :css('border-width', '0 2px 0 0') :wikitext(args[name]) :newline group = group + 1 end end

function renderTree(tbl, compact) -- create 3 or 1 rows for every team local count = math.pow(2, rounds) * (compact and 1 or 3) local rows = {} for i = 1, count do		rows[i] = addTableRow(tbl) end if not compact then -- fill rows with groups for r = 1, rounds - 1 do			renderGroups(rows, count, r)		end end -- fill rows with bracket for r = 1, rounds do		if compact then renderCompactRound(rows, count, r)		else renderRound(rows, count, r)		end end end

function renderHeading(tbl, compact) local titleRow = addTableRow(tbl) local widthRow = addTableRow(tbl) for r = 1, rounds do		addBlank(titleRow) addBlank(widthRow, r > 1 and '5px' or nil) titleRow:tag('td') :attr('colspan', showSeeds and '3' or '2') :css('text-align', 'center') :css('border', '1px solid #aaa') :css('background-color', '#f2f2f2') :wikitext(getRoundName(r)) :newline local seedCell if showSeeds then seedCell = addBlank(widthRow, getWidth('seed', '25px')) end local teamCell = addBlank(widthRow, getWidth('team', '150px')) local scoreCell = addBlank(widthRow, getWidth('score', '25px')) addBlank(titleRow) addBlank(widthRow, r < rounds and '5px' or nil)

if compact then teamCell:css('height', '7px') else if seedCell then seedCell:wikitext(' ') end teamCell:wikitext(' ') scoreCell:wikitext(' ') end end end

function p.teamBracket(frame) args = getArgs(frame) rounds = tonumber(args.rounds) or 2 local teams = math.pow(2, rounds) padding = '%0' .. (teams < 10 and 1 or 2) .. 'd'	showSeeds = true if args['seeds'] and args['seeds'] == 'no' then showSeeds = false end

-- set default seeds for round 1 local seeds = getSeeds local argname for i = 1, table.getn(seeds) do		argname = getTeamArgName(1, 'seed', i)		if not args[argname] then args[argname] = seeds[i] end end

local tbl = mw.html.create('table') :css('border-style', 'none') :css('font-size', '90%') :css('margin', '1em 2em 1em 1em') :css('border-collapse', 'separate') :css('border-spacing', '0')

local compact = false if args['compact'] and args['compact'] == 'yes' then compact = true end

if compact then tbl:css('font-size', '90%'):attr('cellpadding', '0') end

renderHeading(tbl, compact) renderTree(tbl, compact) return tostring(tbl) end

return p