EnderAPI v3.0.0

--# USER VARIABLE(S)
local shouldAutoUpdate = true

--# Files to grab when updating/installing
local tFiles = {
  "/EnderAPI/master/apis/colors",
  "/EnderAPI/master/apis/colours",
  "/EnderAPI/master/apis/number",
  "/EnderAPI/master/apis/pastebin",
  "/EnderAPI/master/apis/text",
  "/EnderAPI/master/apis/messageBox",
  "/EnderAPI/master/apis/http",
  "/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 downloadFile( url, sFile )
  local response = http.get( url )
  if response then
    local sResponse = response.readAll()
    response.close()

    local handle = io.open( sFile, "w" )
    handle:write( sResponse )
    handle:close()
    return true
  else
    return false
  end
end

local function loadAPIs()
  local oldLoad = os.loadAPI
  local tAPIsLoading = {}

  function os.loadAPI( _sPath )
    local sName = fs.getName( _sPath )
    if tAPIsLoading[sName] == true then
      return false
    end
    tAPIsLoading[sName] = true

    local tEnv = {}
    setmetatable( tEnv, { __index = _G } )
    local fnAPI, err = loadfile( _sPath )
    if fnAPI then
      setfenv( fnAPI, tEnv )
      fnAPI()
    else
      tAPIsLoading[sName] = nil
      return false
    end

    local tAPI = {}
    for k,v in pairs( tEnv ) do
      tAPI[k] =  v
    end

    _G[sName] = tAPI
    tAPIsLoading[sName] = nil
    return true
  end

  os.loadAPI( "/.EnderAPI/master/apis/text" )
  os.loadAPI( "/.EnderAPI/master/apis/number" )
  shell.run( "/.EnderAPI/master/apis/colors" )
  shell.run( "/.EnderAPI/master/apis/colours" )
  os.loadAPI( "/.EnderAPI/master/apis/pastebin" )
  os.loadAPI( "/.EnderAPI/masster/apis/messageBox" )
  shell.run( "/.EnderAPI/master/apis/http" )
  --# Still have to test the fs additions
  --shell.run( "/.EnderAPI/master/apis/fs" )

  os.loadAPI = oldLoad
end

--# Main Update Script
for i = 1, #tFiles do

  --# Grab the file and store it's contents in a string to check against later
  local sResponse
  local response = http.get( "https://raw.github.com/SuicidalSTDz" .. tFiles[ i ] )
  if response then
    sResponse = response.readAll()
    response.close()
  end

  --# Open the currently installed file to check against the downloaded file
  local sFile = tFiles[ i ]:sub( 1, 1 ) .. "." .. tFiles[ i ]:sub( 2, #tFiles[ i ] )
  if not fs.exists( sFile ) then
    local handle = io.open( sFile, "w" )
    handle:write( "function help() return 'This file was improperly downloaded, please try again later!' end" )
    handle:close()
  end
  local handle = fs.open( sFile, "r" )
  local sData = handle.readAll()
  handle.close()

  --# If the file does not exist or doesn't match the downloaded file, then update said file
  if sResponse ~= "" then
    if ( sData ~= sResponse and shouldAutoUpdate ) then
      local handle = io.open( sFile, "w" )
      handle:write( sResponse, "w" )
      handle:close()
    end
  end
end

--# Update the launcher, if need be
local sRunning = shell.getRunningProgram()
local response = http.get( "https://raw.github.com/SuicidalSTDz/EnderAPI/master/launcher" )
if response then
  local sResponse = response.readAll()
  response.close()

  local handle = fs.open( sRunning, "r" )
  local sData = handle.readAll()
  handle.close()

  if sResponse ~= "" then
    if ( sData ~= sResponse and shouldAutoUpdate ) then
      fs.delete( sRunning )
      local handle = io.open( sRunning, "w" )
      handle:write( sResponse )
      handle:close()
    end
  end
end

--# Load EnderAPI
loadAPIs()