# Module:Navbar

local p = {}  
local cfg = mw.loadData('Module:Navbar/configuration')  

local function get_title_arg(is_collapsible, template)  
local title_arg = 1  
if is_collapsible then title_arg = 2 end  
if template then title_arg = 'template' end  
return title_arg  
end  

local function choose_links(template, args)  
-- The show table indicates the default displayed items.  
-- view, talk, edit, hist, move, watch  
-- TODO: Move to configuration.  
local show = {true, true, true, false, false, false}  
if template then  
show[2] = false  
show[3] = false  
local index = {t = 2, d = 2, e = 3, h = 4, m = 5, w = 6,  
talk = 2, edit = 3, hist = 4, move = 5, watch = 6}  
-- TODO: Consider removing TableTools dependency.  
for _, v in ipairs(require ('Module:TableTools').compressSparseArray(args)) do  
local num = index[v]  
if num then show[num] = true end  
end  
end  

local remove_edit_link = args.noedit  
if remove_edit_link then show[3] = false end  

return show  

end  

local function add_link(link_description, ul, is_mini, font_style)  
local l  
if link_description.url then  
l = {'[', '', ']'}  
else  
l = {*, *}  
end  
ul:tag('li')  
:addClass('nv-' .. link_description.full)  
:wikitext(l[1] .. link_description.link .. l[2])  
:tag(is_mini and 'abbr' or 'span')  
:attr('title', link_description.html_title)  
:cssText(font_style)  
:wikitext(is_mini and link_description.mini or link_description.full)  
:done  
:wikitext(l[3])  
:done  
end  

local function make_list(title_text, has_brackets, displayed_links, is_mini, font_style)  

local title = mw.title.new(mw.text.trim(title_text), cfg.title_namespace)  
if not title then  
error(cfg.invalid_title .. title_text)  
end  
local talkpage = title.talkPageTitle and title.talkPageTitle.fullText or ''  

-- TODO: Get link_descriptions and show into the configuration module.  
-- link_descriptions should be easier...  
local link_descriptions = {  
{ ['mini'] = 'பா', ['full'] = 'பார்', ['html_title'] = 'இவ்வார்ப்புருவைப் பார்க்க',  
['link'] = title.fullText, ['url'] = false },  
{ ['mini'] = 'உ', ['full'] = 'உரை', ['html_title'] = 'இவ்வார்ப்புரு குறித்து உரையாடுக',  
['link'] = talkpage, ['url'] = false },  
{ ['mini'] = 'தொ', ['full'] = 'தொகு', ['html_title'] = 'இவ்வார்ப்புருவைத் தொகுக்க',  
['link'] = 'Special:EditPage/' .. title.fullText, ['url'] = false },  
{ ['mini'] = 'வ', ['full'] = 'வரலாறு', ['html_title'] = 'இவ்வார்ப்புருவின் வரலாறு',  
['link'] = 'Special:PageHistory/' .. title.fullText, ['url'] = false },  
{ ['mini'] = 'm', ['full'] = 'move', ['html_title'] = 'Move this template',  
['link'] = mw.title.new('Special:Movepage'):fullUrl('target='..title.fullText), ['url'] = true },  
{ ['mini'] = 'w', ['full'] = 'watch', ['html_title'] = 'Watch this template',  
['link'] = title:fullUrl('action=watch'), ['url'] = true }  
}  

local ul = mw.html.create('ul')  
if has_brackets then  
ul:addClass(cfg.classes.brackets)  
:cssText(font_style)  
end  

for i, _ in ipairs(displayed_links) do  
if displayed_links[i] then add_link(link_descriptions[i], ul, is_mini, font_style) end  
end  
return ul:done  

end  

function p._navbar(args)  

-- TODO: We probably don't need both fontstyle and fontcolor...  
local font_style = args.fontstyle  
local font_color = args.fontcolor  
local is_collapsible = args.collapsible  
local is_mini = args.mini  
local is_plain = args.plain  

local collapsible_class = nil  
if is_collapsible then  
collapsible_class = cfg.classes.collapsible  
if not is_plain then is_mini = 1 end  
if font_color then  
font_style = (font_style or '') .. '; color: ' .. font_color .. ';'  
end  
end  

local navbar_style = args.style  
local div = mw.html.create:tag('div')  
div  
:addClass(cfg.classes.navbar)  
:addClass(cfg.classes.plainlinks)  
:addClass(cfg.classes.horizontal_list)  
:addClass(collapsible_class) -- we made the determination earlier  
:cssText(navbar_style)  

if is_mini then div:addClass(cfg.classes.mini) end  

local box_text = (args.text or cfg.box_text) .. ' '  
-- the concatenated space guarantees the box text is separated  
if not (is_mini or is_plain) then  
div  
:tag('span')  
:addClass(cfg.classes.box_text)  
:cssText(font_style)  
:wikitext(box_text)  
end  

local template = args.template  
local displayed_links = choose_links(template, args)  
local has_brackets = args.brackets  
local title_arg = get_title_arg(is_collapsible, template)  
local title_text = args[title_arg] or (':' .. mw.getCurrentFrame:getParent:getTitle)  
local list = make_list(title_text, has_brackets, displayed_links, is_mini, font_style)  
div:node(list)  

if is_collapsible then  
local title_text_class  
if is_mini then  
title_text_class = cfg.classes.collapsible_title_mini  
else  
title_text_class = cfg.classes.collapsible_title_full  
end  
div:done  
:tag('div')  
:addClass(title_text_class)  
:cssText(font_style)  
:wikitext(args[1])  
end  

local = mw.getCurrentFrame  
-- hlist -> navbar is best-effort to preserve old Common.css ordering.  
return :extensionTag{  
name = 'templatestyles', args = { src = cfg.hlist_templatestyles }  
} .. :extensionTag{  
name = 'templatestyles', args = { src = cfg.templatestyles }  
} .. tostring(div:done)  
end  

function p.navbar  
return p._navbar(require('Module:Arguments').getArgs)  
end  

return p