-- Copyright 2007-2009 Mitchell mitchell<att>caladbolg.net. See LICENSE.

local textadept = _G.textadept

local mpath = _HOME..'/modules/?.lua;'.._HOME..'/modules/?/init.lua'
package.path  = mpath..';'..package.path

local loaded_user_modules = false
local user_init = _USERHOME..'/init.lua'
local f = io.open(user_init)
if f then
  f:close()
  local ret, errmsg = pcall(dofile, user_init)
  if not ret then error(errmsg) end
  loaded_user_modules = ret
end

if not loaded_user_modules then
-- Core extension modules to load on startup.
require 'ext/keys' -- provides key command support
require 'ext/find' -- provides functionality for find/replace
require 'ext/command_entry' -- provides tab-completion for the command entry
require 'ext/mime_types' -- provides support for language detection based on
                         -- the file; loads its language-specific module if
                         -- it exists
require 'ext/pm' -- provides the dynamic browser (side pane) functionality
require 'ext/pm.buffer_browser'  -- buffer browser
require 'ext/pm.file_browser'    -- file browser
require 'ext/pm.modules_browser' -- modules browser
if not WIN32 then
  require 'ext/pm.ctags_browser' -- ctags browser
end

-- Generic modules to load on startup.
require 'textadept'

-- Core extension modules that must be loaded last.
require 'ext/menu' -- provides the menu bar
require 'ext/key_commands' -- key commands
end

if not RESETTING then
  -- for Windows, create arg table from single command line string (arg[0])
  if WIN32 and #arg[0] > 0 then
    local lpeg = require 'lpeg'
    local P, S, C, Ct = lpeg.P, lpeg.S, lpeg.C, lpeg.Ct
    space = P(' ')
    param = P('"') * C((1 - P('"'))^0) * '"' + C((1 - space)^1)
    cmdline = Ct(param * (space * param)^0)
    args = lpeg.match(cmdline, arg[0])
    for _, a in ipairs(args) do arg[#arg + 1] = a end
  end

  -- process command line arguments
  if MAC and arg[1] and arg[1]:find('^%-psn_0') then
    table.remove(arg, 1)
  end
  if #arg == 0 then
    textadept.io.load_session()
  else
    local base_dir = arg[0]:match('^.+/') or ''
    local filepath
    for _, filename in ipairs(arg) do
      if not filename:find('^~?/') then
        textadept.io.open(base_dir..filename)
      else
        textadept.io.open(filename)
      end
    end
    -- read only the Project Manager session settings
    if not textadept.io.load_session(nil, true) then
      textadept.pm.entry_text = 'buffers'
      textadept.pm.activate()
    end
  end
end