EnderAPI v0.01

--# Files to grab when updating/installing
local tFiles = {
  "/EnderAPI/master/apis/color",
  "/EnderAPI/master/apis/colour",
  "/EnderAPI/master/apis/number",
  "/EnderAPI/master/apis/pastebin",
  "/EnderAPI/master/apis/text",
  "/EnderAPI/master/apis/messageBox",
  "/EnderAPI/master/config"
  }

--# Create directories if they are not present
if not fs.exists( "/EnderAPI" ) then
  fs.makeDir( "/EnderAPI" )
end
if not fs.exists( "/EnderAPI/master" ) then
	fs.makeDir( "/EnderAPI/master" )
end
if not fs.exists( "/EnderAPI/master/apis" ) then
	fs.makeDir( "/EnderAPI/master/apis" )
end
if not fs.exists( "/EnderAPI/master/temp" ) then
	fs.makeDir( "/EnderAPI/master/temp" )
end

local function downloadFiles( bShow )
	for i = 1, #tFiles do
		local response = http.get( "https://raw.github.com/SuicidalSTDz" .. tFiles[ i ] )
		if response then
			local sResponse = response.readAll()
			response.close()

			local handle = fs.open( tFiles[ i ], "w" )
			handle.write( sResponse )
			handle.close()
      --# Successfully downloaded file
      if bShow then
        print( "Downloaded " .. tFiles[ i ] )
      end
		else
      --# Error downloading file
			if bShow then
        print( "Failed to download " .. tFiles[ i ] )
      end
		end
	end
end

local function loadAPIs( bShow )
  if bShow then
    print( "Loading APIs.." )
  end
  local tAPIs = {
  TextAPI = { success = os.loadAPI( "/EnderAPI/master/apis/text" ) },
  NumberAPI = { success = os.loadAPI( "/EnderAPI/master/apis/number" ) },
  ColorAPI = { success = os.loadAPI( "/EnderAPI/master/apis/color" ) },
  ColourAPI = { success = os.loadAPI( "/EnderAPI/master/apis/colour" ) },
  PastebinAPI = { success = os.loadAPI( "/EnderAPI/master/apis/pastebin" ) },
  MessageBoxAPI = { success = os.loadAPI( "/EnderAPI/master/apis/messageBox" ) }
  }
  for k, v in pairs( tAPIs ) do
    if not v.success then
      if bShow then
        printError( "Failed to load " .. tostring( k ) )
      end
    else
      if bShow then
        term.setTextColour( colours.lime )
        print( "Loaded " .. tostring( k ) )
      end
    end
  end
  if bShow then
    term.setTextColour( colours.white )
  end
end

--# Main Update Script
if fs.exists( "/EnderAPI/master/config" ) then

	--# EnderAPI is installed (at least enough to download core files and load APIs)
  --# Load the EnderAPI config file
  os.loadAPI( "/EnderAPI/master/config" )
  local bShow = config.returnVars().showUpdateStatus
  if bShow then
    print( "Loaded existent APIs" )
    write( "EnderAPI is installed\nChecking for updates\n" )
  end

  --# Check for any available updates, if showAutoUpdate is true
  if config.returnVars().shouldAutoUpdate then
    local response = http.get( "https://raw.github.com/SuicidalSTDz/EnderAPI/master/config" )
    if response then
      local sResponse = response.readAll()
      response.close()

      local handle = io.open( "/EnderAPI/master/temp/config", "w" )
      handle:write( sResponse )
      handle:close()
      local oldVersion = config.returnVars().version
      os.loadAPI( "/EnderAPI/master/temp/config" )
      if config.returnVars().version ~= oldVersion then
        --# An update is available, ask user to update ( not yet implemented )
        --local bUpdate = false
        --messagebox.create( "Download available update?", downloadFiles, function() return nil end )
        if bShow then
          print( "Update Available!" )
        end
      else
        --# No update is available
        if bShow then
          print( "No updates avavilable" )
        end
      end
    else
      --# Error updating
      if bShow then
        print( "Error updating" )
      end
    end
  end
else
	--# EnderAPI is not installed, download necessary files
	downloadFiles( true )
end

--# Load EnderAPI
loadAPIs( config.returnVars().showUpdateStatus )