from grow.pods.preprocessors import base
from protorpc import messages
from xtermcolor import colorize
import os
import re
import subprocess
import shlex
import sys



class Config(messages.Message):
    build_task = messages.StringField(1, default='build')
    run_task = messages.StringField(2, default='')
    command = messages.StringField(3, default='gulp')



class GulpPreprocessor(base.BasePreprocessor):
    KIND = 'gulp'
    Config = Config

    def run(self, build=True):
        node_modules_path = os.path.join(self.pod.root, 'node_modules', '.bin')
        path = os.environ['PATH'] + ':{}'.format(node_modules_path)
        args = {
            'cwd': self.pod.root,
            'env': {
                'PATH': path,
            },
        }
        task = self.config.build_task if build else self.config.run_task
        raw_command = '{} {}'.format(self.config.command, task)
        command = shlex.split(raw_command)
        process = subprocess.Popen(command, **args)
        if not build:
            return
        code = process.wait()
        if code != 0:
            raise base.PreprocessorError('Failed to run: {}'.format(raw_command))