require('strict')
local p = {}
local sandbox-- = '/sandbox' -- BE SURE TO COMMENT OUT this definition when deploying to live
local cfg = mw.loadData('Module:WikiProject banner/config' .. (sandbox or ''))
local yesno = require('Module:Yesno')
local lang = mw.getLanguage(cfg.language)

p.b_checklist = function(args, raw_args, class, demo, assessment_link)
---------------------------
-- B-class checklist ------
---------------------------
local show_checklist = false
local parameters_used = args.b1 or args.b2 or args.b3 or args.b4 or args.b5 or args.b6
if (class=='B' or class=='C' or class=='BL' or class=='CL')-- always displayed on C or B
	or ((class=='Start' or class=='List') and yesno(args.B_DISPLAY_ON_START))-- show on Start/List if option selected
	or ((class=='Start' or class=='Stub') and parameters_used) then-- show on Start or Stub if any parameters used
	show_checklist = true
end
if show_checklist then
	local scale = args.QUALITY_CRITERIA=='custom' and assessment_link and assessment_link..'#'..lang:ucfirst(cfg.quality.name)
		or cfg.b_checklist.default_scale
	local text = cfg.b_checklist.text:format(
		parameters_used and cfg.b_checklist.checked or cfg.b_checklist.not_checked,
		scale
	)
	local syntax = mw.html.create('ul')
		:css('font-size', '88%')
		:css('margin', '0px')
		:css('font-family', 'monospace, sans-serif')
		:css('padding', '1em')
		:css('border', '1px dashed #2f6fab')
		:css('background-color', '#f9f9f9')
		:css('color', 'black')
		:css('line-height', '1.1em')
		:css('list-style', 'none')
	local criteria = mw.html.create('ol')
	for i = 1, 6 do
		local b = raw_args['b'..i]
		if b and b~='unused' then -- criterion in use
			b = cfg.b_checklist.mask[b:lower()] or cfg.b_checklist.mask.default
			local image = '[[File:' .. cfg.b_checklist.icon[b] .. '.svg|16x16px|link=|alt=]]'
			local failed_cat = args['B'..i..'_CAT']
			local category = ''
			if b~='y' and b~='x' and failed_cat and not demo then -- criterion failed
				category = '[[Category:' .. failed_cat .. ']]'
			end
			if (b=='u' or b=='i') and args.B_MAIN_CAT and not demo then -- unevaluated or invalid parameter
				category = category .. '[[Category:' .. args.B_MAIN_CAT .. ']]'
			end
			local status = mw.html.create('span')
				:css('font-style', 'italic')
				:wikitext(cfg.b_checklist.status[b])
			local criterion = mw.html.create('li')
				:wikitext(image .. ' ' .. cfg.b_checklist.criteria[i] .. ': ')
				:node(status)
				:wikitext(category)
			criteria:node(criterion)
			local new_syntax = mw.html.create('li')
				:addClass('nowrap')
				:wikitext(cfg.b_checklist.syntax.prompt:format(
					tostring(i),
					cfg.b_checklist.criteria[i] .. string.rep(
						' ',
						cfg.b_checklist.syntax.max_width-#cfg.b_checklist.criteria[i]
					)
				))
			syntax:node(new_syntax)
		end
	end
	local prompt
	if not parameters_used then
		prompt = mw.html.create('span')
			:wikitext(cfg.b_checklist.syntax.text:format(tostring(mw.title.getCurrentTitle():fullUrl({action = 'edit'}))))
			:node(syntax)			
			:wikitext(cfg.b_checklist.syntax.assess)
	end
	local col1 = mw.html.create('td')
		:addClass('class-b')
		:css('padding-bottom', '5px')
		:wikitext(cfg.b_checklist.image)
	local col211 = mw.html.create('th')
		:addClass('wpb-collapsed-head mbox-text')
		:attr('colspan', '3')
		:css('font-weight', 'normal')
		:wikitext(text)
	local col212 = mw.html.create('th')
		:css('min-width', '3em')-- empty cell for show/hide toggle
	local row21 = mw.html.create('tr')
		:node(col211)
		:node(col212)
	local col221 = mw.html.create('td')
		:css('font-size', '90%')
		:node(criteria)
	local col222 = mw.html.create('td')
		:css('font-size', '88%')
		:node(prompt)
	local row22 = mw.html.create('tr')
		:node(col221)
		:node(col222)
	local table2 = mw.html.create('table')
		:addClass('plainlinks mw-collapsible mw-collapsed')
		:node(row21)
		:node(row22)
	local col2 = mw.html.create('td')
		:addClass('wpb-collapsed-notes')
		:node(table2)
	return mw.html.create('tr')
		:node(col1)
		:node(col2)
end
end

p.todo_list = function(args, frame)
---------------------------
-- To-do list -------------
---------------------------
local list
if args.TODO_LINK then
	local link = function(action)
		local url = mw.uri.fullUrl(args.TODO_LINK, {action = action})
		return mw.html.create('li'):wikitext('[' .. tostring(url) .. ' ' .. cfg.todo_list[action] .. ']')
	end
	local links = yesno(args.TODO_EDITLINKS or true, 'true') and frame:expandTemplate{title = 'Flatlist', args = {
		class = 'plainlinks',
		style = 'text-align:center;font-size:90%;',
		[1] = tostring(mw.html.create('ul')
			:node(link('edit'))
			:node(link('history'))
			:node(link('watch'))
			:node(link('purge'))
		)
	}} or ''
	list = links .. '\n' .. frame:expandTemplate{title = args.TODO_LINK}
else
	list = ('\n' .. args.TODO_TEXT) or ''
end
local titlecell = mw.html.create('th')
	:css('text-align', 'left')
	:css('padding', '0.2em 2px 0.2em 0')
	:cssText(args.TODO_TITLE_STYLE)
	:wikitext((args.TODO_TITLE or cfg.todo_list.default_title) .. ':')
local listcell = mw.html.create('td')
	:css('text-align', 'left')
	:css('padding', '5px')
	:css('background-color', 'var(--background-color-base, #fff)')
	:css('color', 'inherit')
	:css('border', '1px solid #a2a9b1')
	:css('margin-top', '5px')
	:cssText(args.TODO_STYLE)
	:wikitext(list)
local onecellrow = function(cell)
	return mw.html.create('tr'):node(cell)
end
local table1 = mw.html.create('table')
	:addClass('mw-collapsible mw-collapsed')
	:css('width', '100%')
	:node(onecellrow(titlecell))
	:node(onecellrow(listcell))
local cell1 = mw.html.create('td')
	:attr('colspan', '3')
	:css('padding', '0')
	:node(table1)
return onecellrow(cell1)
end
p.todo_list_ = function(frame)
	return p.todo_list(frame.args, frame)
end

p.quality_importance_insection = function(args, class, importance, importance_name, assessment_cat, article, tf_prefix)
---------------------------
-- Category intersection --
---------------------------
local prefix = tf_prefix or ''
if class=='NA' and (yesno(args[prefix..'QII_SUPPRESS_NA']) or yesno(args[prefix..'QII_SUPPRESS_NA_CLASS'])) then
	return nil
end
if importance=='NA' and (yesno(args[prefix..'QII_SUPPRESS_NA']) or yesno(args[prefix..'QII_SUPPRESS_NA_IMPORTANCE'])) then
	return nil
end
local form = args[prefix..'QII_FORMAT']:gsub('C', '_C_'):gsub('I', '_I_'):gsub('T', '_T_')
if not class or not importance or not form then
	return nil
end
local new_class
if class=='' then
	new_class = 'Unassessed' .. (args[prefix..'QII_UNASSESSED_APPENDIX'] or '')
else
	new_class = class .. '-Class'
end
local check_cat = function (typ)
	local cat_name = form:gsub('_C_', new_class):gsub('_I_', importance .. '-' .. importance_name):gsub('_T_', assessment_cat .. ' ' .. typ)
	local cat = mw.title.new('Category:' .. cat_name)
	return cat.exists and #cat:getContent()>0 and cat_name
end
local cat = check_cat(article and 'articles' or 'pages')
return cat
end

p.image_needed = function(args)
---------------------------
-- Image needed -----------
---------------------------
local type = cfg.image_needed.default_type
if args['image-type'] then
	local add_article = function(word)
		local article = cfg.image_needed.article.consonant
		if cfg.image_needed.vowels[word:sub(1, 1)] then
			article = cfg.image_needed.article.vowel
		end
		return article .. ' <b>' .. word .. '</b>'
	end
	type = add_article(args['image-type'])
end
local details = ''
if args['image-details'] then
	details = ' ' .. cfg.image_needed.details:format(args['image-details'])
end
local location = ''
if args['image-location'] then
	local location_cat = mw.title.new('Category:Wikipedians in ' .. args['image-location'])
	if location_cat.exists then
		location = ' ' .. cfg.image_needed.help:format('[[:' .. location_cat.fullText .. '|' .. location_cat.text .. ']]')
	end
end
local category_exists = function(category)
	local title = mw.title.new('Category:' .. category)
	if title.exists then
		return category
	end
end
return {
	text = cfg.image_needed.text:format(type, details, location),
	image_name = args.IM_IMAGE or cfg.image_needed.default_image,
	category = args['image-location'] and category_exists(
		cfg.image_needed.location:format(
			args['image-type'] or 'photograph',
			args['image-location']
		)
	) or args.IM_LOCATION_CATEGORY,
	category2 = args['image-topic'] and category_exists(
		cfg.image_needed.topic:format(
			args['image-type'] or 'photograph',
			args['image-topic']
		)
	) or args.IM_TOPIC_CATEGORY
}
end

p.collaboration = function(args, title)
---------------------------
-- Collaboration ----------
---------------------------
local image = args.COLL_IMAGE or cfg.collaboration.default_image
local link = '[[' .. (args.COLL_LINK or '') .. '|' .. (args.COLL_TEXT or cfg.collaboration.default_text) .. ']]'
local note_args = {candidate = {}, current = {}, past = {}}
if yesno(args['collaboration-candidate'], true) then
	local subpage_link = (args.COLL_LINK or '') .. '#' .. title.subjectPageTitle.text
	note_args.candidate = {
		text = cfg.collaboration.candidate:format(subpage_link, link),
		image_name = image,
		size = cfg.collaboration.size,
		category = args.COLL_CANDIDATE_CAT
	}
end
if yesno(args['collaboration-current'], true) then
	note_args.current = {
		text = cfg.collaboration.current:format(link),
		image_name = image,
		size = cfg.collaboration.size,
		category = args.COLL_CURRENT_CAT
	}
end
if yesno(args['collaboration-past'], true) then
	note_args.past = {
		text = cfg.collaboration.past:format(link),
		image_name = image,
		size = cfg.collaboration.size,
		category = args.COLL_PAST_CAT
	}
end
return note_args
end

p.a_class = function(args, lang)
---------------------------
-- A-class review ---------
---------------------------
local status = cfg.a_class.mask[lang:lc(args['a class'])]
if status==nil then
	return {}
end
local link_exists = args.ACR_SUBPAGE_LINK and mw.title.new(args.ACR_SUBPAGE_LINK).exists or false
local link = mw.html.create('span'):css('font-weight', 'bold')
local label = cfg.a_class.status[status]
if args.ACR_SUBPAGE_LINK and status=='current' and not link_exists and args.ACR_PRELOAD then -- use custom preload template when creating discussion page
	local url = mw.uri.fullUrl(args.ACR_SUBPAGE_LINK, {
		action = 'edit',
		preload = args.ACR_PRELOAD,
		summary = cfg.a_class.create_summary
	})
	link:wikitext('[' .. tostring(url) .. ' ' .. label .. ']')
else
	link:wikitext('[[' .. (args.ACR_SUBPAGE_LINK or '') .. '|' .. label .. ']]')
end
return {
	text = cfg.a_class.text:format(
		tostring(link),
		args.ACR_REVIEW_LINK or ''
	),
	image_name = args.ACR_IMAGE or cfg.a_class.icon[status],
	size = args.ACR_SIZE or '18x18px',
	background = cfg.a_class.background,
	color = cfg.a_class.color,
	category = args[cfg.a_class.category[status]],
	category2 = not link_exists and args.ACR_INVALID_CAT
}
end

p.peer_review = function(args, title)
---------------------------
-- Peer review ------------
---------------------------
local image = args.PR_IMAGE or cfg.peer_review.default_image
local size = args.PR_SIZE or cfg.peer_review.size
local link = args.PR_LINK or ''
local pr_title = args['peer review title'] and mw.title.new(args['peer review title']) or title
local subpage_link = link .. '/' .. pr_title.subjectPageTitle.text
local invalid_cat = not mw.title.new(subpage_link).exists and args.PR_INVALID_CAT
local note_args = {current = {}, past = {}}
if yesno(args['peer review'], true) then
	note_args.current = {
		text = cfg.peer_review.current:format(subpage_link, link),
		image_name = image,
		size = size,
		category = args.PR_CAT,
		category2 = invalid_cat
	}
end
if yesno(args['old peer review'], true) then
	note_args.past = {
		text = cfg.peer_review.past:format(link, subpage_link),
		image_name = image,
		size = size,
		category = args.PR_OLD_CAT,
		category2 = invalid_cat
	}
end
return note_args
end

p.map_config = function(config, pargs)
---------------------------
-- Map configuration ------
---------------------------
local args, raw_args, parent_args, v_par = {}, {}, {}, {}
local punct = {'-', '_', ' '}
local normalise = function(s) -- convert parameter name to lowercase and collapse spaces and commonly used punctuation
	local norm = s -- string.lower(s) for case insensitivity
	if type(s)=='string' then -- this will fail for positional parameters
		for _, p in ipairs(punct) do
			norm = norm:gsub(p, '')
		end
	end
	return norm
end
if pargs.taskforce then -- split comma-separated list
	for taskforce in mw.text.gsplit(pargs.taskforce, ',%s*') do
		pargs[taskforce] = 'yes'
	end
end
for k, v in pairs(pargs) do -- build table of normalised parameters
	local normk = normalise(k)
	if not parent_args[normk] then
		parent_args[normk] = v
	end
end
local pan = function(s) -- function to look up normalised argument from parent frame
	if type(s)=='string' then -- single parameter
		return parent_args[normalise(s)]
	elseif type(s)=='table' then -- multiple parameter aliases
		for _, p in ipairs(s) do
			local normp = parent_args[normalise(p)]
			if normp then
				return normp
			end
		end
	end
end
local AddToValid
AddToValid = function(s) -- function to add string or table of strings to list of valid parameters
	if type(s)=='string' then
		table.insert(v_par, s)
	elseif type(s)=='table' then
		for _, p in ipairs(s) do
			AddToValid(p)
		end
	end
end
local first = function(s) -- function gives parameter or first parameter from list of aliases, for use in documentation
	if type(s)=='string' then -- single parameter
		return s
	elseif type(s)=='table' then -- multiple parameter aliases
		return s[1]
	end
end
local current_title = mw.title.getCurrentTitle()
args.IMAGE_LEFT = config.image and config.image.file or config.image
args.IMAGE_LEFT_SIZE = config.image and config.image.size
args.MAIN_TEXT = config.text
args.MAIN_CAT = config.category
if config.assessment then
	args.ASSESSMENT_LINK = config.assessment.link
	args.ASSESSMENT_CAT = config.assessment.topic
	if config.assessment.quality then
		raw_args.class = pargs.class or '' -- pass raw class so it can be tracked by [[Category:WikiProject banners with ignored class parameter]], etc.
	end
	if config.assessment.priority then
		AddToValid{'importance', 'priority'}
		args.importance = parent_args.importance
		raw_args.importance = 'importance'
	end
end
if config.taskforces then
	args.TF_SIZE = config.taskforces.size
	args.TF_COLLAPSE = config.taskforces.collapse
	args.TF_HEADER = config.taskforces.header
	AddToValid('taskforce')
	if config.taskforces.list then
		for k, cfg in ipairs(config.taskforces.list) do
			AddToValid{cfg.parameter, cfg.priority}
			raw_args['tf ' .. k] = first(cfg.parameter) -- trigger display on template page
			args['tf ' .. k] = pan(cfg.parameter)
			args['TF_' .. k .. '_NAME'] = cfg.name
			args['TF_' .. k .. '_LINK'] = cfg.link
			args['TF_' .. k .. '_NESTED'] = cfg.nested
			args['TF_' .. k .. '_IMAGE'] = cfg.image
			args['TF_' .. k .. '_SIZE'] = cfg.size
			args['TF_' .. k .. '_MAIN_CAT'] = cfg.category
			args['TF_' .. k .. '_QUALITY'] = cfg.quality and 'yes'
			args['TF_' .. k .. '_ASSESSMENT_CAT'] = cfg.topic
			args['tf ' .. k .. ' importance'] = pan(cfg.priority)
			raw_args['tf ' .. k .. ' importance'] = first(cfg.priority)
			if cfg.additional then
				for n, a in ipairs(cfg.additional) do
					AddToValid(a.parameter)
					args['tf ' .. k .. ' cat ' .. n] = pan(a.parameter)
					args['TF_' .. k .. '_CAT_' .. n] = a.category
				end
			end
		end
	end
end
if config.notes then
	args.NOTE_SIZE = config.notes.size
	args.COLLAPSED = config.notes.collapse
	args.COLLAPSED_HEAD = config.notes.header
	if config.notes.attention then
		AddToValid(config.notes.attention.parameter)
		raw_args.attention = first(config.notes.attention.parameter)
		args.attention = pan(config.notes.attention.parameter)
		args.ATTENTION_CAT = config.notes.attention.category
	end
	if config.notes.infobox then
		AddToValid(config.notes.infobox.parameter)
		raw_args.infobox = first(config.notes.infobox.parameter)
		args.infobox = pan(config.notes.infobox.parameter)
		args.INFOBOX_CAT = config.notes.infobox.category
	end
	if config.notes.auto then
		AddToValid(config.notes.auto.parameter)
		raw_args.auto = first(config.notes.auto.parameter)
		args.auto = pan(config.notes.auto.parameter)
		args.AUTO_ASSESS_CAT = config.notes.auto.category
	end
	if config.notes.collaboration then
		args.COLL_LINK = config.notes.collaboration.link:gsub('_FULLPAGENAME_', current_title.fullText)
		args.COLL_TEXT = config.notes.collaboration.name
		args.COLL_IMAGE = config.notes.collaboration.image
		AddToValid{config.notes.collaboration.candidate.parameter, config.notes.collaboration.current.parameter, config.notes.collaboration.past.parameter}
		raw_args['collaboration-candidate'] = first(config.notes.collaboration.candidate.parameter)
		args['collaboration-candidate'] = pan(config.notes.collaboration.candidate.parameter)
		args.COLL_CANDIDATE_CAT = config.notes.collaboration.candidate.category
		raw_args['collaboration-current'] = first(config.notes.collaboration.current.parameter)
		args['collaboration-current'] = pan(config.notes.collaboration.current.parameter)
		args.COLL_CURRENT_CAT  = config.notes.collaboration.current.category
		raw_args['collaboration-past'] = first(config.notes.collaboration.past.parameter)
		args['collaboration-past'] = pan(config.notes.collaboration.past.parameter)
		args.COLL_PAST_CAT = config.notes.collaboration.past.category
	end
	if config.notes.image then
		AddToValid{config.notes.image.parameters.needed, config.notes.image.parameters.details, config.notes.image.parameters.type, config.notes.image.parameters.location, config.notes.image.parameters.topic}
		raw_args['image-needed'] = first(config.notes.image.parameters.needed)
		args['image-needed'] = pan(config.notes.image.parameters.needed)
		args['image-type'] = pan(config.notes.image.parameters.type)
		args['image-details'] = pan(config.notes.image.parameters.details)
		args['image-location'] = pan(config.notes.image.parameters.location)
		args['image-topic'] = pan(config.notes.image.parameters.topic)
		args.IM_IMAGE = config.notes.image.image
		args.IM_LOCATION_CATEGORY = config.notes.image.categories.location
		args.IM_TOPIC_CATEGORY = config.notes.image.categories.topic
	end
	if config.notes.list then
		for k, cfg in ipairs(config.notes.list) do
			AddToValid(cfg.parameter)
			raw_args['note ' .. k] = first(cfg.parameter) -- trigger display on template page
			args['note ' .. k] = pan(cfg.parameter)
			args['NOTE_'.. k .. '_TEXT'] = cfg.text
			args['NOTE_'.. k .. '_IMAGE'] = cfg.image
			args['NOTE_'.. k .. '_SIZE'] = cfg.size
			args['NOTE_'.. k .. '_CAT'] = cfg.category
		end
	end
end
if config.todo then
	args.TODO_LINK = config.todo.link
	args.TODO_TEXT = config.todo.text
	args.TODO_STYLE = config.todo.style
	args.TODO_TITLE = config.todo.title
	args.TODO_TITLE_STYLE = config.todo.title_style
	args.TODO_EDITLINKS = config.todo.editlinks==false and 'no' or 'yes'
end
if config.doc then
	args.DOC = config.doc
end
args.PORTAL = config.portal
return args, raw_args, v_par
end

return p