Module:DefInfo

Dev version at Module:Test

---

---------------
-- load data --
---------------

local Biomes = mw.loadData('Module:Test/data/biomes')
--local Buildings = mw.loadData('Module:Test/data/buildings')
local Races = mw.loadData('Module:Test/data/races')

-----------------------
-- private functions --
-----------------------

local function find_key_in_table(key, table)
  for k, v in pairs(table) do
    if k == key then return v
    elseif type(v) == "table" then
      local found = find_key_in_table(key, v)
      if found then return found end
    end
  end
end


local function parent_defName(def, category)
  local parent_name = category[def]["ParentName"]
  if type(category[parent_name]) == "table" then
    return parent_name
  end
end


local function find_in_parents(tag, def, category)
  if not category[def] then
    return def .. " not found in category"
  end

  local parent_def = parent_defName(def, category)
  if not parent_def then
    return tag .." not found in parent defs"
  end

  local found = find_key_in_table(tag, category[parent_def])
  if found then return found
  else
    found = find_in_parents(tag, parent_def, category)
    if found then
      return found
    end
  end
end


local function query(tag, def, category)
  if not category[def] then
    return def .. " not found in category"
  end

  local found = find_key_in_table(tag, category[def])
  if found then return found end

  found = find_in_parents(tag, def, category)
  if found then return found end

  return tag .. " not found"
end

--------------------------------
-- publicly exposed functions --
--------------------------------

local p = {}

function p.query(frame)
  local category = frame.args[1]
  local def = frame.args[2]
  local tag = frame.args[3]
  local sublist_query = frame.args[4]

  if category == "Races" then category = Races
  elseif category == "Biomes" then category = Biomes
  else return "undefined category" end

  local queried = query(tag, def, category)

  if sublist_query == "count" then
    if type(queried) == "table" then
      return table.maxn(queried)
    else
      return tag .. " is not a table (not countable)"
    end
  elseif sublist_query then
    return queried[tonumber(sublist_query)]
  end

  return queried
end

-- os.clock() may be logging time that is not the time I want
mw.log("Module:DefInfo:os.clock() " .. os.clock()*1000 .. " ms")

return p