# -*- coding: utf-8 -*-

import json
import os
import sys

from .apppacker import AppPacker
from .imagebuilder import ImageNotFoundError

class App:
    def __init__(self):
        self.name = None
        self.conf = {}
        self.build_dir = None

    def load_metafile(self, metafile):
        self.build_dir = os.path.dirname(metafile)
        if os.path.basename(metafile) == 'meta':
            self.name = os.path.basename(self.build_dir)
        else:
            self.name = os.path.splitext(metafile)[0]
        with open(metafile, 'r') as f:
            self.conf = json.load(f)

    def pack(self, metafile):
        self.load_metafile(metafile)
        packer = AppPacker(self)
        try:
            packer.pack()
        except ImageNotFoundError as e:
            print('Image {} not found, can\'t pack {}'.format(e, self.name))
            sys.exit(1)

    def remove(self):
        packer = AppPacker(self)
        packer.remove()