Module:Navbar/sandbox

local p = {}

local getArgs
local HtmlBuilder = require('Module:HtmlBuilder')

local function trim(s)
    return mw.ustring.match(s, "^%s*(.-)%s*$")
end

local function htmlError(s)
    local span = HtmlBuilder.create('span')

    span
        .addClass('error')
        .css('float', 'left')
        .css('white-space', 'nowrap')
        .wikitext('Error: ' .. s)

    return tostring(span)
end

local function getTitle(pageName)
    pageName = trim(pageName);
    local page_title, talk_page_title;

    if mw.ustring.sub(pageName, 1, 1) == ':' then
        page_title = mw.title.new( mw.ustring.sub(pageName, 2));
    else
        page_title = mw.title.new(pageName, 'Template');
    end

    if page_title then
        talk_page_title = page_title.talkPageTitle;
    else
        talk_page_title = nil;
    end

    return page_title, talk_page_title;
end

function p._navbar(args)
    local good, title, talk_title;
    good, title, talk_title = pcall(getTitle, args[1] or (':' .. mw.getCurrentFrame():getParent():getTitle()));
    if not good then
        return htmlError(title);
    end

    if not title then
        return htmlError('Page does not exist')
    end

    local mainpage = title.fullText;
    local talkpage = talk_title and talk_title.fullText or ''
    local editurl = title:fullUrl('action=edit');

    local viewLink, talkLink, editLink = 'view', 'talk', 'edit'
    if args.mini then
        viewLink, talkLink, editLink = 'v', 't', 'e'
    end

    local div = HtmlBuilder.create('div')
    div
        .addClass('plainlinks')
        .addClass('hlist')
        .addClass('navbar')
        .cssText(args.style)

    if args.mini then div.addClass('mini') end

    if not (args.mini or args.plain) then
        div
            .tag('span')
                .css('word-spacing', 0)
                .cssText(args.fontstyle)
                .wikitext(args.text or 'This box:')
                .wikitext(' ')
    end

    if args.brackets then
        div
            .tag('span')
                .css('margin-right', '-0.125em')
                .cssText(args.fontstyle)
                .wikitext('[')
                .newline();
    end

    local ul = div.tag('ul');

    ul
        .tag('li')
            .addClass('nv-view')
            .wikitext('[[' .. mainpage .. '|')
            .tag('span')
                .attr('title', 'View this template')
                .cssText(args.fontstyle or '')
                .wikitext(viewLink)
                .done()
            .wikitext(']]')
            .done()
        .tag('li')
            .addClass('nv-talk')
            .wikitext('[[' .. talkpage .. '|')
            .tag('span')
                .attr('title', 'Discuss this template')
                .cssText(args.fontstyle or '')
                .wikitext(talkLink)
                .done()
            .wikitext(']]');

    if not args.noedit then
        ul
            .tag('li')
                .addClass('nv-edit')
                .wikitext('[' .. editurl .. ' ')
                .tag('span')
                    .attr('title', 'Edit this template')
                    .cssText(args.fontstyle or '')
                    .wikitext(editLink)
                    .done()
                .wikitext(']');
    end

    if args.brackets then
        div
            .tag('span')
                .css('margin-left', '-0.125em')
                .cssText( args.fontstyle or '')
                .wikitext(']')
                .newline();
    end

    return tostring(div)
end

function p.navbar(frame)
	if not getArgs then
		getArgs = require('Module:Arguments').getArgs
	end
	return p._navbar(getArgs(frame))
end

return p