Module:CatType

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

local p = {}

function p.generateCategories(frame)
    local baseCategory = frame.args[1] or ""

    if baseCategory == "" then
        return "Error: No base category provided."
    end

    -- Determine the type based on the base category name
    local type = baseCategory:match("spells") or baseCategory:match("skills")
    if not type then
        -- If it's not spells or skills, check if it's an abilities page
        if baseCategory:match("abilities$") then
            -- Extract the last two words of the base category name
            local words = {}
            for word in baseCategory:gmatch("%w+") do
                table.insert(words, word)
            end

            if #words >= 2 then
                local lastTwoWords = words[#words - 1] .. " " .. words[#words]
                local firstWordCapitalized = lastTwoWords:gsub("^(%w)", string.upper)
                local relatedCategory = "Category:" .. firstWordCapitalized

                -- Check if the related category exists
                local relatedPage = mw.title.new(relatedCategory)
                if relatedPage and relatedPage.exists then
                    return "[[" .. relatedCategory .. "]]"
                end
            end

            return "Warning: Unable to determine related category or it doesn't exist."
        else
            return "Error: Unable to determine type ('spells', 'skills', or 'abilities') from category name."
        end
    end

    -- Determine the parent category by replacing the detected type with "abilities"
    local parentCategory = "Category:" .. baseCategory:gsub(type, "abilities")

    -- Attempt to retrieve and expand the content of the parent category
    local parentPage = mw.title.new(parentCategory)
    if not parentPage then
        return "Error: Unable to access the parent category page object: " .. parentCategory
    end

    local rawParentContent = parentPage:getContent()
    if not rawParentContent then
        return "Error: Unable to retrieve the content of the parent category: " .. parentCategory
    end
    
    -- local tweakedParentContent = rawParentContent:gsub("{{CatType}}", "{{CatType2}}")

    -- Expand any templates in the parent category's content
    local expandedParentContent = frame:preprocess(rawParentContent)

    -- Replace every instance of "abilities]]" with the detected type (e.g., "spells]]" or "skills]]")
    local updatedContent = expandedParentContent:gsub("Abilities%]%]", type:gsub("spells", "Spells"):gsub("skills", "Skills") .. "]]")
    updatedContent = updatedContent:gsub("abilities%]%]", type .. "]]")

    -- Return the updated content along with the parent category
    return "[[" .. parentCategory .. "]]\n" .. updatedContent
end

return p