Module:Infobox/sandbox

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

local p = {}

function p.row(frame)
  local args = frame.args
  if p._empty_arg(args[2]) then
    return
  end

  local label = frame:expandTemplate{title = 'Translation', args = {args[1]}}

  return string.format(
[[<tr class="border-top">
<td>
%s
</td>
<td>
%s
</td>
</tr>]],
    label,
    args[3] or args[2])
end

function p.vrow(frame)
  local args = frame.args
  if p._empty_arg(args[2]) and p._empty_arg(args[4]) then
    return
  end

  local label = frame:expandTemplate{title = 'Translation', args = {args[1]}}
  local content = ""
  if not p._empty_arg(args[2]) then
    content = args[3] or args[2]
  else -- We might want to remove this since it is only used to display "None required" for field required-technologies, but it's kind of obvious no technologies are required if it's not in the infobox already
    content = "<i>" .. args[4] .. "</i>"
  end

  return string.format(
[[<tr class="border-top">
<td colspan=2>
%s
</td>
</tr>
<tr>
<td class="infobox-vrow-value" colspan=2>
%s
</td>
</tr>]],
    label,
    content)
end

function p.technology_parsing(frame)
  local args = frame.args
  if args[1] == "?" then
    return args[1] -- same as old template, likely not needed
  end

  local ret = {}
  local techs = p._split(args[1], "+")
  for _, tech in ipairs(techs) do
    local tech_parts = p._split(tech, ",")
    local tech_name = tech_parts[1] .. " (research)"
    if not p._page_exists(tech_name) then -- fall back to plain name if page with " (research)" doesn't exist
      tech_name = tech_parts[1]
    end

    local tech_level = tech_parts[2] or ""
    if tech_level == "" then -- fall back to level from tech name if none given manually
      local second_to_last_char = string.sub(tech_parts[1], -2, -2)
      if second_to_last_char == " " then
        tech_level = string.sub(tech_parts[1], -1) -- last character should be the level of the tech
      end
    end
    ret[#ret+1] = frame:expandTemplate{title = 'icon/special', args = {tech_name, tech_level, color=args.color or "999"}}
  end
  return table.concat(ret)
end

function p.item_parsing(frame)
  local args = frame.args
  if args[1] == "?" then
    return args[1] -- same as old template, likely not needed
  end

  local ret = {}
  local items = p._split(args[1], "+")
  for _, item in ipairs(items) do
    local icon_args = p._split(item, ",")
    icon_args[2] = icon_args[2] or ""
    ret[#ret+1] = frame:expandTemplate{title = 'icon/special', args = icon_args}
  end
  return table.concat(ret)
end


function p.crafting_parsing(frame)
  local args = frame.args
  if args[1] == "?" then
    return args[1] -- same as old template, likely not needed
  end
  
  local recipe_parts = p._split(args[1], "=")  
  local ingredients = p._crafting_parsing_split(frame, recipe_parts[1])
  
  local products = recipe_parts[2]
  if products then
    products = "&rarr; " .. p._crafting_parsing_split(frame, products)
  else
    local item_name = frame:expandTemplate{title = 'No language suffix/No namespace'}
    products = "&rarr; " .. frame:expandTemplate{title = 'icon/special', args = {item_name, "1"}}
  end
  
  return ingredients .. products
end

function p.crafting_raw(frame)
  local args = frame.args
  if args[1] == "?" then
    return args[1] -- same as old template, likely not needed
  end

  local recipe_parts = p._split(args[1], "=")
  return p._crafting_parsing_split(frame, recipe_parts[1])
end

-- @param frame
-- @param str string A list of "item, count" separated by "+"
-- @return string @The resulting icons with a "+" between each icon
function p._crafting_parsing_split(frame, str)
  local ret = {}
  local items = p._split(str, "+")
  for _, item in ipairs(items) do
    local item_parts = p._split(item, ",")
    local item_count = item_parts[2] or "1" -- fall back to 1, not empty!
    item_count = frame:expandTemplate{title = 'Crop', args = {item_count}}
    ret[#ret+1] = frame:expandTemplate{title = 'icon/special', args = {item_parts[1], item_count}}
  end
  return table.concat(ret, "+")
end

-- @param arg string The argument to check
-- @return boolean @Whether the argument is an whitespace string or empty string or nil
function p._empty_arg(arg)
  if type(arg) == "string" then
    return not string.find(arg, "%S")
  else
    return not arg
  end
end

-- @param inputstr string A string to be split
-- @param separator string The separator
-- @return string[] @The separated strings, without the separator
function p._split(inputstr, separator)
  local result = {}

  for str in string.gmatch(inputstr, "([^"..separator.."]+)") do
    table.insert(result, mw.text.trim(str))
  end

  return result
end

-- @param page_title string The title of the page
-- @return boolean
function p._page_exists(page_title)
  if page_title and page_title ~= "" then
    return mw.title.new(page_title).exists
  else
    return false
  end
end

return p