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Module:Extension

Module documentation
local lang = mw.language.getContentLanguage()
--local translation = mw.getCurrentFrame():expandTemplate{ title = 'translation' }
local translation = mw.getCurrentFrame():callParserFunction{name='#translation', args="1"}
local addr = {
	GNU = '//www.gnu.org/licenses/',
	OSI = '//opensource.org/licenses/',
	CC  = '//creativecommons.org/licenses/',
	Mozilla = '//www.mozilla.org/'
}
local cats = {
	GPL    = 'GPL licensed extensions',
	FDL    = 'FDL licensed extensions',
	LGPL   = 'LGPL licensed extensions',
	AGPL   = 'AGPL licensed extensions',
	MIT    = 'MIT licensed extensions',
	ISC    = 'ISC licensed extensions',
	BSD    = 'BSD licensed extensions',
	MPL    = 'MPL licensed extensions',
	WTFPL  = 'WTFPL licensed extensions',
	Apache = 'Apache licensed extensions',
	PD     = 'Public domain licensed extensions',
	CC     = 'Creative Commons licensed extensions',
	ECL    = 'Educational Community licensed extensions',
}
local licenses = {
	['GPL-2.0']      = { addr.GNU .. 'old-licenses/gpl-2.0-standalone.html', 'GNU General Public License 2.0', 'GPL' },
	['GPL-2.0-only'] = { addr.GNU .. 'old-licenses/gpl-2.0-standalone.html', 'GNU General Public License 2.0 only', 'GPL' },
	['GPL-2.0-or-later'] = { addr.GNU .. 'old-licenses/gpl-2.0-standalone.html', 'GNU General Public License 2.0 or later', 'GPL' },
	['GPL-3.0']      = { addr.GNU .. 'gpl-3.0-standalone.html', 'GNU General Public License 3.0', 'GPL' },
	['GPL-3.0-only'] = { addr.GNU .. 'gpl-3.0-standalone.html', 'GNU General Public License 3.0 only', 'GPL' },
	['GPL-3.0-or-later'] = { addr.GNU .. 'gpl-3.0-standalone.html', 'GNU General Public License 3.0 or later', 'GPL' },
	['AGPL-3.0']     = { addr.GNU .. 'agpl-3.0.html', 'GNU Affero General Public License 3.0', 'AGPL' },
	['LGPL-2.1']     = { addr.GNU .. 'old-licenses/lgpl-2.1-standalone.html', 'GNU Lesser General Public License 2.1', 'LGPL' },
	['LGPL-2.1-only'] = { addr.GNU .. 'old-licenses/lgpl-2.1-standalone.html', 'GNU Lesser General Public License 2.1 only', 'LGPL' },
	['LGPL-2.1-or-later'] = { addr.GNU .. 'old-licenses/lgpl-2.1-standalone.html', 'GNU Lesser General Public License 2.1 or later', 'LGPL' },
	['LGPL-3.0']     = { addr.GNU .. 'lgpl-3.0-standalone.html', 'GNU Lesser General Public License 3.0', 'LGPL' },
	['LGPL-3.0-only'] = { addr.GNU .. 'lgpl-3.0-standalone.html', 'GNU Lesser General Public License 3.0 only', 'LGPL' },
	['LGPL-3.0-or-later'] = { addr.GNU .. 'lgpl-3.0-standalone.html', 'GNU Lesser General Public License 3.0 or later', 'LGPL' },
	['FDL']          = { addr.GNU .. 'fdl.html', 'GNU Free Documentation License', 'FDL' },
	['MIT']          = { addr.OSI .. 'mit-license.php', 'MIT License', 'MIT' },
	['ISC']          = { addr.OSI .. 'ISC', 'ISC License', 'ISC' },
	['BSD-2-Clause'] = { addr.OSI .. 'BSD-2-Clause', 'BSD 2-clause "Simplified" License', 'BSD' },
	['BSD-3-Clause'] = { addr.OSI .. 'BSD-3-Clause', 'BSD 3-clause "Modified" License', 'BSD' },
	['BSD-4-Clause'] = { addr.GNU .. 'license-list.html#OriginalBSD', 'BSD 4-clause "Original" License', 'BSD' },
	['MPL-1.0']      = { addr.Mozilla .. 'MPL/1.0/', 'Mozilla Public License 1.0', 'MPL' },
	['MPL-2.0']      = { addr.Mozilla .. 'MPL/2.0/', 'Mozilla Public License 2.0', 'MPL' },
	['WTFPL']        = { 'http://www.wtfpl.net', 'WTFPL 2.0', 'WTFPL' },
	['Apache-2.0']   = { '//www.apache.org/licenses/LICENSE-2.0', 'Apache License 2.0', 'Apache' },
	['Zlib']         = { addr.OSI .. 'Zlib', 'zlib License' },
	['CC0-1.0']      = { '//creativecommons.org/publicdomain/zero/1.0/', 'Creative Commons Zero v1.0 Universal', 'PD' },
	['CC-BY-3.0']    = { addr.CC .. 'by/3.0/', 'Creative Commons Attribution 3.0', 'CC' },
	['CC-BY-SA-2.0'] = { addr.CC .. 'by-sa/2.0/', 'Creative Commons Attribution Share Alike 2.0', 'CC' },
	['CC-BY-SA-2.5'] = { addr.CC .. 'by-sa/2.5/', 'Creative Commons Attribution Share Alike 2.5', 'CC' },
	['CC-BY-NC-SA-2.5'] = { addr.CC .. 'by-nc-sa/2.5/', 'Creative Commons Attribution NonCommercial Share Alike 2.5', 'CC' },
	['CC-BY-NC-SA-3.0'] = { addr.CC .. 'by-nc-sa/3.0/', 'Creative Commons Attribution NonCommercial Share Alike 3.0', 'CC' },
	['CC-BY-NC-3.0'] = { addr.CC .. 'by-nc/3.0/', 'Creative Commons Attribution NonCommercial 3.0', 'CC' },
	['CC-BY-SA-3.0'] = { addr.CC .. 'by-sa/3.0/', 'Creative Commons Attribution Share Alike 3.0', 'CC' },
	['CC-BY-SA-4.0'] = { addr.CC .. 'by-sa/4.0/', 'Creative Commons Attribution Share Alike 4.0', 'CC' },
	['ECL-2.0']      = { '', '[[wikipedia:Educational Community License|Educational Community License 2.0]]', 'ECL' },
	['PD']           = { '', '[[wikipedia:Public domain|Public domain]]', 'PD' },
}
local types = {
	ajax                = { '[[w:AJAX|Ajax]]',                                        'Ajax extensions' },
	api                 = { '[[API:Action API|API]]',                                 'API extensions' },
	['beta feature']    = { '[[Beta Features|Beta Feature]]',                         'Beta Feature extensions' },
	contenthandler      = { '[[Manual:ContentHandler|ContentHandler]]',               'ContentHandler extensions' },
	database            = { '[[Manual:Database layout|Database]]',                    'Database extensions' },
	['data extraction'] = { 'Data extraction',                                        'Data extraction extensions' },
	example             = { 'Example',                                                'Extension examples' },
	['extended syntax'] = { '[[Manual:Extending wiki markup|Extended syntax]]',       'Extended syntax extensions' },
	filerepo            = { 'File repository',                                        'File repository extensions' },
	hook                = { '[[Manual:Hooks|Hook]]',                                  'Hook extensions' },
	interface           = { 'User interface',                                         'User interface extensions' },
	link                = { '[[Manual:Extending wiki markup|Link markup]]',           'Link markup extensions' },
	media               = { 'Media',                                                  'Media handling extensions' },
	mywiki              = { '[[Manual:Personalization|MyWiki]]',                      'Personalization extensions' },
	notify              = { 'Notify',                                                 'Notification extensions' },
	['page action']     = { '[[Manual:Parameters to index.php#Actions|Page action]]', 'Page action extensions' },
	parser              = { '[[Manual:Extending wiki markup|Parser extension]]',      'Parser extensions' },
	['parser function'] = { '[[Manual:Parser functions|Parser function]]',            'Parser function extensions' },
	php                 = { 'PHP',                                                    'PHP extensions' },
	search              = { 'Search',                                                 'Search extensions' },
	skin                = { '[[Manual:Skins|Skin]]',                                  'Skin extensions' },
	['special page']    = { '[[Manual:Special pages|Special page]]',                  'Special page extensions' },
	locale              = { '[[Manual:Localization|Locale]]',                         'Internationalization extensions' },
	tag                 = { '[[Manual:Tag extensions|Tag]]',                          'Tag extensions' },
	['user access']     = { '[[Manual:Security|User access]]',                        'User access extensions' },
	['user identity']   = { '[[Manual:Security|User identity]]',                      'User identity extensions' },
	['user rights']     = { '[[Manual:Security|User rights]]',                        'User rights extensions' },
	['user activity']   = { '[[Manual:Security|User activity]]',                      'User activity extensions' },
	variable            = { '[[Manual:Variables|Variable]]',                          'Variable extensions' },
	-- DEPRECATED TYPES (as per 2007-09 taxonomy discussion)
	category            = { 'Category',                                               'Category extensions',  deprecated = true },
	form                = { 'Form',                                                   'Form extensions',      deprecated = true },
	list                = { 'List',                                                   'List extensions',      deprecated = true },
	namespace           = { '[[Manual:Namespaces|Namespace]]',                        'Namespace extensions', deprecated = true },
	['table']           = { 'Table',                                                  'Table extensions',     deprecated = true },
}

local typeAliases = {
	db = 'database',
	pfunc = 'parser function',
	special = 'special page',
}

-- DEPRECATED TYPES (multiple types handled via type1,type2,...)
local deprecatedTypes = {
	['link, tag, special'] = { 'link', 'tag', 'special page' },
	['parser function, special'] = { 'parser function', 'special page' },
	['tag, parser function'] = { 'tag', 'parser function' },
	['tag, parser function, special'] = { 'tag', 'parser function', 'special page' },
	['tag, special'] = { 'tag', 'special page' },
	['parser, pfunc'] = { 'parser function' },
	['parser, hook, special'] = { 'tag' --[[ sic ]], 'hook', 'special page' },
}

local function setI18n( from, to, index )
	for n, v in pairs( from ) do
		if to[n] then
			to[n][index] = v
		end
	end
end

local function cat( title )
	return '[[Category:' .. title .. ']]'
end

local function tcat( title )
	return cat( title .. translation )
end

local function getType( str, str2 )
	local str = mw.ustring.lower( str )
	if typeAliases[str] then
		str = typeAliases[str]
	end
	local cnf = types[str]
	local res
	if cnf then
		res = cnf[1] .. '[[Category:' .. cnf[2] .. translation .. ']]'
		if cnf.deprecated then
			res = res .. '\'\'-deprecated\'\'' ..
				tcat( 'Extensions with deprecated types' )
		end
	else
		cnf = deprecatedTypes[str]
		if cnf then
			local dtypes = {}
			for _, sstr in ipairs( cnf ) do
				table.insert( dtypes, getType( sstr ) )
			end
			res = table.concat( dtypes, ', ' ) ..
				'<br />\'\'(deprecated, please use [[Special:MyLanguage/Template:Extension/doc#type|type1,type2'
			if #cnf > 2 then
				res = res .. ',type3'
			end
			res = res .. ']] instead)\'\'' .. tcat( 'Extensions with deprecated types' )
		elseif str == '_missing_' then
			res = tcat( 'Extensions with invalid or missing type' )
		elseif str == '_demomode_' then
			if str2 then
				res = lang:ucfirst( str2 )
			else
				res = "''unknown''"
			end
		else
			res = ( str or '\'\'unknown\'\'' ) ..
				' [[Special:MyLanguage/Template:Extension/doc#type|(\'\'\'\'\'invalid type\'\'\'\'\')]]' ..
				tcat( 'Extensions with invalid or missing type' )
		end
	end
	return res
end

local function getLicenseCategory( str )
	if mw.ustring.sub( str, -1 ) == '+' then
		str = mw.ustring.sub( str, 1, -2 )
	end
	local cnf = licenses[str]
	if cnf then
		if #cnf > 2 then
			return tcat( cats[cnf[3]] )
		end
	else
		return tcat( 'Extensions with unknown license' )
	end
end

local function getFormattedLicense( str, orlatertext )
	local orlater = ''
	local license = str
	if mw.ustring.sub( str, -1 ) == '+' then
		license = mw.ustring.sub( str, 1, -2 )
		orlater = orlatertext
	end
	local cnf = licenses[license]
	if cnf then
		return (cnf[1] ~= '' and ('[' .. cnf[1] .. ' ' .. cnf[2] .. ']') or cnf[2]) .. orlater
	else
		return str
	end
end

local p = {}

function p.getTypes( frame )
	setI18n( frame.args, types, 1 )
	local args = frame:getParent().args
	local types = {}
	local params = {
		args.type1 or args['type'] or 'missing',
		args.type2,
		args.type3,
		args.type4,
		args.type5,
		args.type6,
	}
	for _, param in ipairs( params ) do
		if param == nil or mw.text.trim( param ) == '' then
			break
		end
		local param = mw.text.trim( param )
		if args.templatemode == 'nocats' then
			table.insert( types, getType( '_demomode_', param ) )
		else
			table.insert( types, getType( param ) )
		end
	end
	return table.concat( types, ', ' )
end

function p.getType( frame )
	setI18n( frame.args, types, 1 )
	return getType( frame.args[1] )
end

function p.getLicenseCategory( frame )
	return getLicenseCategory( frame.args[1] )
end

function p.getFormattedLicense( frame )
	setI18n( frame.args, licenses, 2 )
	return getFormattedLicense( frame.args[1] and mw.text.trim( frame.args[1] ) or nil, frame.args['+'] or ' or later' )
end

function getExtData()
	local pg = mw.title.getCurrentTitle().rootPageTitle:partialUrl() -- need to get rid of translation subpage.
	return mw.loadData( 'Module:ExtensionJson' )[pg]
end

-- Return if the extension does schema updates
-- Only answer yes. For now be silent on no or unknown, as its unclear
-- if this info should be in infobox if the answer is not yes.
function p.getNeedsUpdates( frame )
	local data = getExtData()
	if data ~= nil and data.Hooks ~= nil and data.Hooks.LoadExtensionSchemaUpdates ~= nil then
		return 'yes'
	end
	return ''
end

function p.getVersion( frame )
	
    if frame.args[1] ~= nil and mw.text.trim(frame.args[1]) ~= "" then
    	return frame.args[1]
    end
    local data = getExtData()
    if data ~= nil and data.version ~= nil then
    	return data.version
    end
    return ''
end

return p