-- default  lua require can't handle yielding across "require" calls
-- This version is implemented in pure-lua and avoids the problem
-- override the require function for everybody
-- this version is required for darktable.collection to function as a table

local orig_ipairs = ipairs
local function ipairs_iterator(st, var)
  var = var + 1
  local val = st[var]
  if val ~= nil then
    return var, st[var]
  end
end

ipairs = function(t)
  if getmetatable(t) ~= nil then -- t has metatable
    return ipairs_iterator, t, 0
  else
    return orig_ipairs(t)
  end
end

-- global flag indicating darktable has completed gui initialization and it is safe 
-- to register a lib in lighttable view
-- fixes issue #19197

darktable_gui_safe = false

local dt = require "darktable"


-- catch the view changed event from none to lighttable to ensure that
-- darktable gui initialization is complete

dt.register_event(
  "luarc_initialization", "view-changed",
  function(event, old_view, new_view)
    ov = nil
    if not old_view then
      ov = "none"
    else
      ov = old_view.id
    end
    if ov == "none" and new_view.id == "lighttable" then
      darktable_gui_safe = true
    end
  end
)

--[[
    Work around (fix) for darktable issue 21035

    If darktable is started with a empty or non-existent configuration directory
    the splash screen and Lua initialization may have a race condition that results
    in a darktable crash.  

    To work around that the following checks to see if there is an existing preference, 
    which would mean the configuration directory is not empty, If the preference does
    not exist, a 1 second sleep is added to allow the darktable main window to start 
    before Lua tries to create widgets.

    A preference is set to show that darktable has created a first run and doesn't need
    to do a Lua sleep when starting
]]

if not dt.preferences.read("script_manager", "check_update", "bool") then
  if not dt.preferences.read("luarc", "darktable_first_run_complete", "bool") then
    dt.control.sleep(1000)
  end
end
dt.preferences.write("luarc", "darktable_first_run_complete", "bool", true)

-- check for gui so that we don't hang darktable-cli

if dt.configuration.has_gui then
  require "tools/script_manager"
end

-- vim: shiftwidth=2 expandtab tabstop=2 cindent syntax=lua