Module:Tabs

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

local p = {}
local html = mw.html
local title = mw.title.getCurrentTitle()

function p.main(frame)
    local args = frame:getParent().args
    
    -- 1. Gather all tab names into a list
    local tabNames = {}
    local i = 1
    while args[i] do
        table.insert(tabNames, args[i])
        i = i + 1
    end
    
    -- 2. Determine the Base Page (Root)
    local basePage = args.base
    if not basePage then
        -- Auto-Detection Logic:
        local currentSubpage = title.subpageText
        local isSubpage = false
        
        -- Check if the current subpage matches one of our tabs (e.g., "The Grind")
        for _, name in ipairs(tabNames) do
            if name == currentSubpage then
                isSubpage = true
                break
            end
        end
        
        if isSubpage then
            -- We are on a tab subpage, so the Base is the parent
            basePage = title.baseText
        else
            -- We are not on a subpage (or the subpage isn't in the tab list)
            -- So we assume we are already on the Base Page.
            basePage = title.prefixedText
        end
    end

    -- 3. Determine Style
    local isSub = (args.type == 'sub')
    local containerClass = isSub and 'pastel-bar' or 'chrome-tabs-container'
    local tabClass = isSub and 'pastel-pill' or 'chrome-tab'

    -- 4. Build HTML
    local root = html.create('div'):addClass(containerClass)
    
    for _, tabName in ipairs(tabNames) do
        local target = ""
        
        -- Special Rule: "Overview" always links to the Base Page
        if tabName == "Overview" then
            target = basePage
        else
            target = basePage .. '/' .. tabName
        end
        
        -- Check if this tab is active
        local isActive = (title.prefixedText == target)
        
        -- If we are on the Base Page and this is Overview, it's active
        if tabName == "Overview" and title.prefixedText == basePage then
            isActive = true
        end
        
        local tabDiv = root:tag('div'):addClass(tabClass)
        if isActive then tabDiv:addClass('active') end
        
        tabDiv:wikitext('[[' .. target .. '|' .. tabName .. ']]')
    end
    
    return tostring(root)
end

return p