import os
import shutil
import subprocess

from repotypes.base import RepotypeBase


class RepotypeGit(RepotypeBase):
  def __init__(self):
    super().__init__('GIT')

  def check_config(self, server, config):
    super().check_config(server, config)
    config['command'] = server.fixpath(config['command'], root = True)
    config['command'] = server.fixpath(config['command'], root = True)
    config['environment'] = server.fixenv(config['environment'])

  def configure(self, server, config):
    super().configure(server, config)
    self.command = self.config['command']
    self.environment = self.config['environment']
    assert self.command[0] == '/'
    assert not self.environment is None

  def create(self, subpath):
    path = self.gen_path(subpath)
    print(self.name + ': Creating repository by path: ' + path)
    parentpath = self.parentdir(path)
    self.mkdir(parentpath)
    subprocess.run([self.command, 'init', '--bare', path], env = self.environment, cwd = parentpath)
    subprocess.run([self.command, 'config', 'http.receivepack', 'true'], env = self.environment, cwd = path)

  def iswriteaccess(self, request, path):
    if request.method == 'GET' and request.urlvars.get('service', list()).count('git-receive-pack'):
      return True 
    if request.method == 'POST' and len(path) == 1 and path[0] == 'git-upload-pack':
      return False
    return request.method != 'GET'

  def delete(self, subpath):
    path = self.gen_path(subpath)
    print(self.name + ': Deleting repository by path: ' + path)
    if os.path.exists(path):
      shutil.rmtree( self.gen_path(subpath) )