PushPull

-- editables
local cacheExtension = 4
local chestExtension = 5

-- etc
local tArg = ...
local chest = "minecraft:chest_" .. tostring(chestExtension)
local cache = "thermalexpansion:storage_cache_" .. tostring(cacheExtension)

local function getCollectors()
  local collector = "projecte:collector_"
  local mks = {
    "mk1",
    "mk2",
    "mk3"
  }
  local collectors = {}
  local ps = peripheral.getNames()

  for i = 1, #ps do
    for o = 1, #mks do
      if ps[i]:find(collector .. mks[o]) then
        collectors[#collectors + 1] = ps[i]
        break
      end
    end
  end

  return collectors
end

local function insert()
  local cols = getCollectors()
  for i = 1, #cols do
    peripheral.call(cache, "pushItems", cols[i], 1, 64)
  end
end

local function pullBack()
  local cols = getCollectors()
  for i = 1, #cols do
    local sz = peripheral.call(cols[i], "size")
    for o = 1, sz do
      peripheral.call(chest, "pullItems", cols[i], o, 64)
    end
  end
end

if not tArg then
  print("Pushing")
  insert()
  print("Done")
else
  print("Pulling")
  pullBack()
  print("Done")
end