Module:Protection banner

Documentation for this module may be created at Module:Protection banner/doc

-- This module implements {{pp-meta}} and its daughter templates such as
-- {{pp-dispute}}, {{pp-vandalism}} and {{pp-sock}}.

local categories = {
	-- The key strings follow this format:
	-- type, level, ns, reason, expiry
	['edit-autoconfirmed-user-all-all'] = 'Wikipedia semi-protected user and user talk pages',
	['edit-autoconfirmed-project-all-all'] = 'Semi-protected project pages',
	['edit-autoconfirmed-file-all-all'] = 'Semi-protected images',
	['edit-autoconfirmed-template-all-all'] = 'Wikipedia semi-protected templates',
	['edit-autoconfirmed-portal-all-all'] = 'Semi-protected portals',
	['edit-autoconfirmed-talk-all-all'] = 'Semi-protected talk pages',
	['edit-autoconfirmed-all-vandalism-all'] = 'Wikipedia pages semi-protected against vandalism',
	['edit-sysop-user-all-all'] = 'Wikipedia protected user and user talk pages',
	['edit-sysop-file-all-all'] = 'Protected images',
	['edit-sysop-project-all-all'] = 'Protected project pages',
	['edit-sysop-template-all-all'] = 'Wikipedia protected templates',
	['edit-sysop-talk-all-all'] = 'Protected talk pages',
	['edit-sysop-all-vandalism-all'] = 'Wikipedia pages protected against vandalism',
	['edit-autoconfirmed-all-dispute-all'] = 'Wikipedia pages semi-protected due to dispute',
	['edit-sysop-all-dispute-all'] = 'Wikipedia pages protected due to dispute',
	['move-sysop-all-dispute-all'] = 'Wikipedia pages move-protected due to dispute',
	['move-sysop-user-all-all'] = 'Wikipedia move-protected user and user talk pages',
	['move-sysop-project-all-all'] = 'Wikipedia move-protected project pages',
	['move-sysop-portal-all-all'] = 'Wikipedia move-protected portals',
	['move-sysop-all-vandalism-all'] = 'Wikipedia pages move-protected due to vandalism',
	['edit-autoconfirmed-template-all-all'] = 'Wikipedia semi-protected templates',
	['move-sysop-template-all-all'] = 'Wikipedia move-protected templates',
	['edit-all-template-all-all'] = 'Wikipedia protected templates',
	['move-sysop-portal-all-all'] = 'Wikipedia move-protected portals',
	['edit-autoconfirmed-all-sock-all'] = 'Wikipedia pages semi-protected from banned users',
	['edit-sysop-all-sock-all'] = 'Wikipedia pages protected from banned users',
	['edit-autoconfirmed-all-blp-temp'] = 'Wikipedia temporarily semi-protected biographies of living people',
	['edit-sysop-all-blp-temp'] = 'Wikipedia temporarily protected biographies of living people',
	['edit-autoconfirmed-all-blp-all'] = 'Wikipedia indefinitely semi-protected biographies of living people',
	['edit-sysop-all-blp-all'] = 'Wikipedia indefinitely protected biographies of living people',
	['edit-autoconfirmed-all-all-indef'] = 'Wikipedia indefinitely semi-protected pages',
	['edit-autoconfirmed-category-all-all'] = 'Wikipedia semi-protected categories',
	['edit-sysop-category-all-all'] = 'Wikipedia protected categories',
	['move-sysop-talk-all-all'] = 'Wikipedia move-protected talk pages',
	['move-sysop-all-all-indef'] = 'Wikipedia indefinitely move-protected pages',
	['edit-autoconfirmed-all-all-all'] = 'Wikipedia semi-protected pages',
	['move-sysop-all-all-all'] = 'Wikipedia move-protected pages',
	['pc-autoconfirmed-all-all-all'] = 'Wikipedia pending changes protected pages (level 1)',
	['pc-reviewer-all-all-all'] = 'Wikipedia pending changes protected pages (level 2)',
	['all-all-all-office-all'] = 'Wikipedia Office-protected pages',
	['all-all-all-all-all'] = 'Wikipedia protected pages',
}

local nskeys = {
	[2] = 'user',
	[3] = 'user',
	[4] = 'project',
	[6] = 'file',
	[10] = 'template',
	[12] = 'project',
	[14] = 'category',
	[100] = 'portal',
}

local behaviors = {
	vandalism = 'namespaceFirst',
	dispute = 'reasonFirst',
	blp = 'reasonFirst',
	sock = 'reasonFirst',
	office = 'reasonFirst',
}

--[[
-- Not currently used
local error_categories = {
	incorrect = 'Wikipedia pages with incorrect protection templates',
	no_expiry = 'Wikipedia protected pages without expiry',
	create = 'Wikipedia pages tagged as create-protected',
	template = 'Wikipedia template-protected pages other than templates and modules'
}
--]]

--------------------------------------------------------------------------------
-- Main functions
--------------------------------------------------------------------------------

-- Define often-used functions as local variables.
local tconcat = table.concat
local tinsert = table.insert
local floor = math.floor

local p = {}

function p.matchNamespace(ns)
	-- Matches a namespace number to a string that can be passed to the
	-- namespace parameter of p.getCategoryName.
	if not ns or type(ns) ~= 'number' then
		return 'all'
	end
	local nskey = nskeys[ns]
	if not nskey then
		if ns % 2 == 1 then
			nskey = 'talk'
		else
			nskey = 'all'
		end
	end
	return nskey
end

function p.getCategoryName(cats, protType, protLevel, namespace, reason, expiry)
	-- Gets a category name from the category table, given a combination of
	-- the protection type, the protection level, the namespace number, the
	-- reason for protection, and the expiry date.
	
	-- Preprocess parameters
	cats = cats or categories
	local properties = {}
	properties.protType = protType or 'all'
	properties.protLevel = protLevel or 'all'
	properties.namespace = p.matchNamespace(namespace)
	properties.reason = reason or 'all'
	if not expiry then
		properties.expiry = 'all'
	elseif expiry ~= 'indef' then
		properties.expiry = 'temp'
	end

	local order = {'expiry', 'namespace', 'protLevel', 'protType', 'reason'} 
	local behavior = behaviors[reason]
	if behavior == 'namespaceFirst' then
		tinsert(order, table.remove(order, 2)) -- move namespace to the end
	elseif behavior ~= 'reasonFirst' and reason ~= 'all' then
		error(reason .. ' is not a valid reason')
	end

	local activePropertyKeys = {}
	for i, propertyKey in ipairs(order) do
		if properties[propertyKey] ~= 'all' then
			activePropertyKeys[#activePropertyKeys + 1] = propertyKey
		end
	end
	local noActiveProperties = #activePropertyKeys
	
	-- Try successively generic matches until we run out of key combinations
	for i = 1, 2^noActiveProperties do
		local categoryKey = {}
		for pos = 1, 5 do
			if pos > noActiveProperties then
				categoryKey[pos] = 'all'
			else
				local quotient = i / 2 ^ (pos - 1)
				quotient = floor(quotient)
				if quotient % 2 == 1 then
					categoryKey[pos] = properties[activePropertyKeys[pos]]
				else -- quotient % 2 == 0
					categoryKey[pos] = 'all'
				end
			end
		end
		categoryKey = tconcat(categoryKey, '-')
		mw.log(categoryKey) -- for debugging
		local attempt = cats[categoryKey]
		if attempt then
			return attempt
		end
	end
	error('No category match found; please define the category for key "all-all-all-all-all"')
end

return p