Mô đun:Gridiron color

--
-- Mô đun này thực hiện
-- -- --
-- --
--
-- -- --
--

local p = {}

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

local yesno = require('Mô đun: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) = 20 and year 0 then
--code for handling year parameter
colors = get_year(color_data[team], year)
else
colors = color_data[team]
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('Mô đun:Color_contrast')
if contrast._ratio({[1] = text, [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