Module:Gridiron color

-- -- This module implements -- --  -- --  -- -- --  --  -- --

local p = {}

local color_data = mw.loadData("Module:Gridiron color/data")

local yesno = require('Module:Yesno')

local prefixes = { "background: ", "color: ", "/**/",	"background: ", "color: " } local default = {"#DCDCDC", "#000000", "none", "", ""}

local function get_year(colors, year) if colors and colors[6] and type(colors[6] == 'table') then for team, year_colors in pairs(colors[6]) do			if mw.ustring.find(team, "%d%d%d%dthru%d%d%d%d$") then local start_year, end_year = mw.ustring.match(team, "(%d%d%d%d)thru(%d%d%d%d)$") if (tonumber(start_year) <= tonumber(year)) and (tonumber(year) <= tonumber(end_year)) then return year_colors end end end end return colors end

local function get_colors(team, unknown, year) team = (team or ''):match("^%s*(.-)%s*$") year = tonumber(year) default = color_data and color_data["#default"] or default unknown = unknown or default

local use_default = { [""] = 1,		["retired"] = 1, ["free agent"] = 1, }	local colors = unknown if (not use_default[team:lower]) then if mw.ustring.find(team, "%d?%d?%d%dthru%d?%d?%d%d$") then if (not year or year <= 0) then team, year = mw.ustring.match(team, "^(.-) -(%d?%d?%d%d)thru%d?%d?%d%d$") team, year = team:match("^%s*(.-)%s*$"), tonumber(year) if year >= 20 and year < 100 then -- Two-digit years were deprecated in 2018 year = year + 1900 elseif year < 20 then year = year + 2000 elseif year < 1000 then year = nil end else team = mw.ustring.match(team, "^(.-) -%d?%d?%d%dthru%d?%d?%d%d$") or team end end if color_data then if year and year > 0 then --code for handling year parameter colors = get_year(color_data[team], year) else colors = color_data[team] end end if ( colors and type(colors) == 'string') then if team == colors then year = nil end -- follow alias recursively return get_colors (colors, unknown, year) end end return colors or unknown end

local function bordercss(c, w)	if w > 0 then local s = 'inset ' .. w .. 'px ' .. w .. 'px 0 ' .. c .. ', inset -' .. w .. 'px -' .. w .. 'px 0 ' .. c return 'box-shadow: ' .. s .. ';'	else return '' end end

local function contrast_check(background, text, colors, alt) local c_limit = 3 local contrast = require('Module:Color_contrast') if contrast._ratio({[1] = text, [2] = background, ['error'] = 0}) < c_limit then if contrast._ratio({[1] = '#FFFFFF', [2] = background, ['error'] = 0}) >= c_limit then text = '#FFFFFF' elseif contrast._ratio({[1] = '#000000', [2] = background, ['error'] = 0}) >= c_limit then text = '#000000' elseif (not alt) and (contrast._ratio({[1] = colors[5], [2] = colors[4], ['error'] = 0}) >= c_limit) then background, text = colors[4], colors[5] else background, text = default[1], default[2] end end return background, text end

function p.test(frame) local args = frame.args.team and frame.args or frame:getParent.args local colors = get_colors((args.team or args[1]), nil, args.year) return '["' .. args.team .. '"] = ' end

function p.color(frame, column, altcolumn) local args = frame.args.team and frame.args or frame:getParent.args local colors = get_colors((args.team or args[1]), nil, args.year)

column = (column or tonumber(frame.args.column)) or 1 altcolumn = altcolumn or tonumber(frame.args.altcolumn) if ((not colors[column]) or (colors[column] == '')) and altcolumn then column = altcolumn end return (yesno(frame.args.raw) and "" or prefixes[column]) .. colors[column] end

function p.style(frame) local team = frame.args.team or frame.args[1] or frame:getParent.args.team or frame:getParent.args[1] local year = frame.args.year or frame:getParent.args.year local border = frame.args.border or frame:getParent.args.border local alt = yesno(frame.args.alt or frame:getParent.args.alt) local colors = get_colors(team, nil, year) local background, text if alt then background, text = colors[4], colors[5] end if ((not background) or (background == '')) then background = colors[1] end if ((not background) or (background == '')) then background = default[1] end if ((not text) or (text == '')) then text = colors[2] end if ((not text) or (text == '')) then text = default[2] end background, text = contrast_check(background, text, colors, alt) local s = prefixes[1] .. background .. "; " .. prefixes[2] .. text .. "; "	if tonumber(border) or yesno(border) then border = tonumber(border) and border or 2 s = s .. bordercss(colors[3], tonumber(border)) end return '' .. s end

return p