#!/usr/bin/env node

chokidar = require('chokidar')
program= require("commander")
{List}=require("./List")
{FileFinder}=require "./FileFinder"
fs=require "fs"
path=require "path"

program.version("0.0.1")
.option("-v, --verbose","Show messages")
.option("-w, --watch","Watch Files")
.option("-o, --output [value]","The file to output all files in. eg application.js")
.parse(process.argv)

file=[]
if program.args
  file= program.args

list= new List()
fileFinder=[]
added=[];
unadded=[]
recursive=(file) =>
  if program.verbose
    console.log "parsing #{file}"
  try
    fileFinder.push new FileFinder(file,program.watch)
  catch e
    console.log "file '#{file}' doesn't exist"

  for f in fileFinder[fileFinder.length-1].includeStack
    if f.required isnt ""
      arguments.callee(f.required)

process.bundle= =>
  for bundle in fileFinder
    for stack in bundle.includeStack
      list.append stack
      if program.watch
        unless stack.required in added
          unadded.push stack.required
        unless stack.caller in added
          unadded.push stack.caller

output= =>
  unless list.graph
    console.log "Nothing to output?"
    process.exit(0)

  if program.verbose
    console.log "Outputing..."

  if program.output
    fs.writeFileSync(program.output,"")
  for i in [list.graph.length-1 .. 0]
    item=list.graph[i]
    data=fs.readFileSync(item,{"encoding":"utf-8"})
    data=data.replace(/# ?include .+/g,"")
    data+="\n"
    if program.output
      if program.verbose
        console.log "writing file #{item}"
      fs.appendFileSync(program.output,data)
    else
      console.log data
  if program.output
    console.log "wrote to #{program.output} complete"
  else
    console.log "write completed"

if file.length is 0
  console.log "No Input"

watchMaster=null;
watcher= =>
  if program.watch
    if program.verbose
      console.log "watch has been added"
    for file in unadded when file isnt ""
      unless watcthMaster?
        watchMaster=chokidar.watch(file,{persistent:true})
        watchMaster.on("change",(newfile)=>
          recursive(newfile)
          process.bundle()
          output()
        )
      else
        watchMaster.add file
        added.push file
    unadded=[]
    watchMaster.close()

try
  for f in file
    recursive(path.resolve(f))
  process.bundle()
  output()
  watcher()
catch e