Editing Module:GetRecipes

-- Module:GetRecipes (https://wiki.play.eco/en/Module:GetRecipes)
local p = {}

local Utils = require('Module:Utils')

-- Main entry point for the Module
function p.main(frame)
  local test = ''

  -- get args from the Template
  local args = Utils.normaliseArgs(frame)
  
  -- assign variables for item, table, and group
  local item = args.item
  local tag = args.tag
  local craftTable = args.table -- Don't override table
  local group = args.group
  
  -- load list of recipes
  local completeList = require("Module:CraftingRecipes")
  local recipeList = completeList.recipes
  local ingredientsList = completeList.ingredients
  local productsList = completeList.products
  local tableList = completeList.tables
  
  -- initialize a table to store recipes
  local recipes = {}
  local products = {}
  local ingredients = {}
  
  -- load CraftingParser
  local parser = require("Module:CraftingParser")

  -- priority: item > tag > table > group
  if item ~= nil then
    local itemProducts

    -- HACK Attempt to handle issue with tool recipes
    if productsList[item] and #productsList[item] == 1 and productsList[item][1] == '' then
      itemProducts = {item}
    elseif productsList[item] then
      itemProducts = productsList[item]
    end

    if itemProducts ~= nil then
      for _, itemProduct in pairs(itemProducts) do
        if (itemProduct ~= '' and recipeList[itemProduct] ~= nil) then
            -- HACK: Skill books don't show us as a product of research pages, only the skill name.
            if string.sub(item, string.len(item) - 9) == 'Skill Book' then
                table.insert(products, recipeList[itemProduct .. ' Skill Book'])
            else
                table.insert(products, recipeList[itemProduct])
            end
        end
      end
    end

    local itemIngredients

    -- HACK Attempt to handle issue with tool recipes
    if ingredientsList[item] and #ingredientsList[item] == 1 and ingredientsList[item][1] == '' then
      itemIngredients = {item}
    elseif ingredientsList[item] then
      itemIngredients = ingredientsList[item]
    end

    if itemIngredients ~= nil then
      for _, itemIngredient in pairs(itemIngredients) do
        if itemIngredient ~= '' then
          if recipeList[itemIngredient] ~= nil then
            table.insert(ingredients, recipeList[itemIngredient])
          -- HACK: Skill books don't show us as a product of research pages, only the skill name.
          elseif recipeList[itemIngredient .. ' Skill Book'] ~= nil then
            table.insert(ingredients, recipeList[itemIngredient .. ' Skill Book'])
          end
        end
      end
    end
    return parser.formattedItem(products, ingredients, item)

  elseif tag ~= nil then
    itemIngredients = {}    
      
    -- Tags do not appear in the 'products' list, so have to process manually
    for recipeName, recipe in pairs(recipeList) do
      local foundIngredient = false
      for _, variant in pairs(recipe.variants) do
        for _, ingredient in pairs(variant.ingredients) do
           if ingredient[1] == 'TAG' and ingredient[2] == tag then
             foundIngredient = true
           end
        end
      end
      if foundIngredient then
        table.insert(itemIngredients, recipeName)
      end
    end

    if itemIngredients ~= nil then
      for _, itemIngredient in pairs(itemIngredients) do
        if itemIngredient ~= '' then
          if recipeList[itemIngredient] ~= nil then
	    table.insert(ingredients, recipeList[itemIngredient])
          end
        end
      end
    end
    return parser.formattedItem(products, ingredients, tag)
    
  elseif craftTable ~= nil then

    for _, tbl in pairs(tableList[craftTable]) do
      table.insert(recipes, recipeList[tbl])
    end
    
    return parser.formattedTable(recipes, craftTable)
    
  else
    return 'Invalid use of parameters, please see [[Template:GetRecipes]].'
  end
end

return p