import json
import hashlib

from flask import url_for
from uuid import uuid4
from base64 import b64encode
from util.names import parse_namespace_repository


NO_REPO = None
PUBLIC = 'public'
PUBLIC_REPO_NAME = 'publicrepo'
PUBLIC_REPO = PUBLIC + '/' + PUBLIC_REPO_NAME

PRIVATE = 'devtable'
PRIVATE_REPO_NAME = 'shared'
PRIVATE_REPO = PRIVATE + '/' + PRIVATE_REPO_NAME

ORG = 'buynlarge'
ORG_REPO = ORG + '/orgrepo'
ORG_REPO_NAME = 'orgrepo'
ORG_READERS = 'readers'
ORG_OWNER = 'devtable'
ORG_OWNERS = 'owners'
ORG_READERS = 'readers'

FAKE_MANIFEST = 'unknown_tag'
FAKE_DIGEST = 'sha256:' + hashlib.sha256(str(uuid4())).hexdigest()
FAKE_IMAGE_ID = str(uuid4())
FAKE_UPLOAD_ID = str(uuid4())
FAKE_TAG_NAME = str(uuid4())
FAKE_USERNAME = str(uuid4())
FAKE_TOKEN = str(uuid4())
FAKE_WEBHOOK = str(uuid4())

BUILD_UUID = '123'
TRIGGER_UUID = '123'

NEW_ORG_REPO_DETAILS = {
  'repository': str(uuid4()),
  'visibility': 'private',
  'description': '',
  'namespace': ORG,
}

NEW_USER_DETAILS = {
  'username': 'bobby',
  'password': 'password',
  'email': 'bobby@tables.com',
}

SEND_RECOVERY_DETAILS = {
  'email': 'jacob.moshenko@gmail.com',
}

SIGNIN_DETAILS = {
  'username': 'devtable',
  'password': 'password',
}

FILE_DROP_DETAILS = {
  'mimeType': 'application/zip',
}

CHANGE_PERMISSION_DETAILS = {
  'role': 'admin',
}

CREATE_BUILD_DETAILS = {
  'file_id': str(uuid4()),
}

CHANGE_VISIBILITY_DETAILS = {
  'visibility': 'public',
}

CREATE_TOKEN_DETAILS = {
  'friendlyName': 'A new token',
}

UPDATE_REPO_DETAILS = {
  'description': 'A new description',
}


class IndexV1TestSpec(object):
  def __init__(self, url, sess_repo=None, anon_code=403, no_access_code=403,
               read_code=200, admin_code=200):
    self._url = url
    self._method = 'GET'
    self._data = None

    self.sess_repo = sess_repo

    self.anon_code = anon_code
    self.no_access_code = no_access_code
    self.read_code = read_code
    self.admin_code = admin_code

  def gen_basic_auth(self, username, password):
    encoded = b64encode('%s:%s' % (username, password))
    return 'basic %s' % encoded

  def set_data_from_obj(self, json_serializable):
    self._data = json.dumps(json_serializable)
    return self

  def set_method(self, method):
    self._method = method
    return self

  def get_client_args(self):
    kwargs = {
      'method': self._method
    }

    if self._data or self._method == 'POST' or self._method == 'PUT' or self._method == 'PATCH':
      kwargs['data'] = self._data if self._data else '{}'
      kwargs['content_type'] = 'application/json'

    return self._url, kwargs


def build_v1_index_specs():
  return [
    IndexV1TestSpec(url_for('v1.get_image_layer', image_id=FAKE_IMAGE_ID),
                  PUBLIC_REPO, 404, 404, 404, 404),
    IndexV1TestSpec(url_for('v1.get_image_layer', image_id=FAKE_IMAGE_ID),
                  PRIVATE_REPO, 403, 403, 404, 404),
    IndexV1TestSpec(url_for('v1.get_image_layer', image_id=FAKE_IMAGE_ID),
                  ORG_REPO, 403, 403, 404, 404),

    IndexV1TestSpec(url_for('v1.put_image_layer', image_id=FAKE_IMAGE_ID),
                  PUBLIC_REPO, 403, 403, 403, 403).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.put_image_layer', image_id=FAKE_IMAGE_ID),
                  PRIVATE_REPO, 403, 403, 403, 404).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.put_image_layer', image_id=FAKE_IMAGE_ID),
                  ORG_REPO, 403, 403, 403, 404).set_method('PUT'),

    IndexV1TestSpec(url_for('v1.put_image_checksum',
                          image_id=FAKE_IMAGE_ID),
                  PUBLIC_REPO, 403, 403, 403, 403).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.put_image_checksum',
                          image_id=FAKE_IMAGE_ID),
                  PRIVATE_REPO, 403, 403, 403, 400).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.put_image_checksum',
                          image_id=FAKE_IMAGE_ID),
                  ORG_REPO, 403, 403, 403, 400).set_method('PUT'),

    IndexV1TestSpec(url_for('v1.get_image_json', image_id=FAKE_IMAGE_ID),
                  PUBLIC_REPO, 404, 404, 404, 404),
    IndexV1TestSpec(url_for('v1.get_image_json', image_id=FAKE_IMAGE_ID),
                  PRIVATE_REPO, 403, 403, 404, 404),
    IndexV1TestSpec(url_for('v1.get_image_json', image_id=FAKE_IMAGE_ID),
                  ORG_REPO, 403, 403, 404, 404),

    IndexV1TestSpec(url_for('v1.get_image_ancestry', image_id=FAKE_IMAGE_ID),
                  PUBLIC_REPO, 404, 404, 404, 404),
    IndexV1TestSpec(url_for('v1.get_image_ancestry', image_id=FAKE_IMAGE_ID),
                  PRIVATE_REPO, 403, 403, 404, 404),
    IndexV1TestSpec(url_for('v1.get_image_ancestry', image_id=FAKE_IMAGE_ID),
                  ORG_REPO, 403, 403, 404, 404),

    IndexV1TestSpec(url_for('v1.put_image_json', image_id=FAKE_IMAGE_ID),
                  PUBLIC_REPO, 403, 403, 403, 403).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.put_image_json', image_id=FAKE_IMAGE_ID),
                  PRIVATE_REPO, 403, 403, 403, 400).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.put_image_json', image_id=FAKE_IMAGE_ID),
                  ORG_REPO, 403, 403, 403, 400).set_method('PUT'),

    IndexV1TestSpec(url_for('v1.create_user'), NO_REPO, 400, 400, 400,
                  400).set_method('POST').set_data_from_obj(NEW_USER_DETAILS),

    IndexV1TestSpec(url_for('v1.get_user'), NO_REPO, 404, 200, 200, 200),

    IndexV1TestSpec(url_for('v1.update_user', username=FAKE_USERNAME),
                  NO_REPO, 403, 403, 403, 403).set_method('PUT'),

    IndexV1TestSpec(url_for('v1.create_repository', repository=PUBLIC_REPO),
                  NO_REPO, 403, 403, 403, 403).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.create_repository', repository=PRIVATE_REPO),
                  NO_REPO, 403, 403, 403, 201).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.create_repository', repository=ORG_REPO),
                  NO_REPO, 403, 403, 403, 201).set_method('PUT'),

    IndexV1TestSpec(url_for('v1.update_images', repository=PUBLIC_REPO),
                  NO_REPO, 403, 403, 403, 403).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.update_images', repository=PRIVATE_REPO),
                  NO_REPO, 403, 403, 403, 204).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.update_images', repository=ORG_REPO), NO_REPO,
                  403, 403, 403, 204).set_method('PUT'),

    IndexV1TestSpec(url_for('v1.get_repository_images',
                          repository=PUBLIC_REPO),
                  NO_REPO, 200, 200, 200, 200),
    IndexV1TestSpec(url_for('v1.get_repository_images',
                          repository=PRIVATE_REPO)),
    IndexV1TestSpec(url_for('v1.get_repository_images', repository=ORG_REPO)),

    IndexV1TestSpec(url_for('v1.delete_repository_images',
                          repository=PUBLIC_REPO),
                  NO_REPO, 501, 501, 501, 501).set_method('DELETE'),

    IndexV1TestSpec(url_for('v1.put_repository_auth', repository=PUBLIC_REPO),
                  NO_REPO, 501, 501, 501, 501).set_method('PUT'),

    IndexV1TestSpec(url_for('v1.get_search'), NO_REPO, 200, 200, 200, 200),

    IndexV1TestSpec(url_for('v1.ping'), NO_REPO, 200, 200, 200, 200),

    IndexV1TestSpec(url_for('v1.get_tags', repository=PUBLIC_REPO), NO_REPO,
                  200, 200, 200, 200),
    IndexV1TestSpec(url_for('v1.get_tags', repository=PRIVATE_REPO)),
    IndexV1TestSpec(url_for('v1.get_tags', repository=ORG_REPO)),

    IndexV1TestSpec(url_for('v1.get_tag', repository=PUBLIC_REPO,
                          tag=FAKE_TAG_NAME), NO_REPO, 404, 404, 404, 404),
    IndexV1TestSpec(url_for('v1.get_tag', repository=PRIVATE_REPO,
                          tag=FAKE_TAG_NAME), NO_REPO, 403, 403, 404, 404),
    IndexV1TestSpec(url_for('v1.get_tag', repository=ORG_REPO,
                          tag=FAKE_TAG_NAME), NO_REPO, 403, 403, 404, 404),

    IndexV1TestSpec(url_for('v1.put_tag', repository=PUBLIC_REPO,
                          tag=FAKE_TAG_NAME),
                  NO_REPO, 403, 403, 403, 403).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.put_tag', repository=PRIVATE_REPO,
                          tag=FAKE_TAG_NAME),
                  NO_REPO, 403, 403, 403, 400).set_method('PUT'),
    IndexV1TestSpec(url_for('v1.put_tag', repository=ORG_REPO,
                          tag=FAKE_TAG_NAME),
                  NO_REPO, 403, 403, 403, 400).set_method('PUT'),

    IndexV1TestSpec(url_for('v1.delete_tag', repository=PUBLIC_REPO,
                          tag=FAKE_TAG_NAME),
                  NO_REPO, 403, 403, 403, 403).set_method('DELETE'),
    IndexV1TestSpec(url_for('v1.delete_tag', repository=PRIVATE_REPO,
                          tag=FAKE_TAG_NAME),
                  NO_REPO, 403, 403, 403, 400).set_method('DELETE'),
    IndexV1TestSpec(url_for('v1.delete_tag', repository=ORG_REPO,
                          tag=FAKE_TAG_NAME),
                  NO_REPO, 403, 403, 403, 400).set_method('DELETE'),
  ]


class IndexV2TestSpec(object):
  def __init__(self, index_name, method_name, repo_name, scope=None, **kwargs):
    self.index_name = index_name
    self.repo_name = repo_name
    self.method_name = method_name

    default_scope = 'push,pull' if method_name != 'GET' and method_name != 'HEAD' else 'pull'
    self.scope = scope or default_scope

    self.kwargs = kwargs

    self.anon_code = 401
    self.no_access_code = 403
    self.read_code = 200
    self.admin_code = 200

  def request_status(self, anon_code=401, no_access_code=403, read_code=200, admin_code=200):
    self.anon_code = anon_code
    self.no_access_code = no_access_code
    self.read_code = read_code
    self.admin_code = admin_code
    return self

  def get_url(self):
    return url_for(self.index_name, repository=self.repo_name, **self.kwargs)

  def gen_basic_auth(self, username, password):
    encoded = b64encode('%s:%s' % (username, password))
    return 'basic %s' % encoded

  def get_scope_string(self):
    return 'repository:%s:%s' % (self.repo_name, self.scope)


def build_v2_index_specs():
  return [
    # v2.list_all_tags
    IndexV2TestSpec('v2.list_all_tags', 'GET', PUBLIC_REPO).
      request_status(200, 200, 200, 200),

    IndexV2TestSpec('v2.list_all_tags', 'GET', PRIVATE_REPO).
      request_status(401, 401, 200, 200),

    IndexV2TestSpec('v2.list_all_tags', 'GET', ORG_REPO).
      request_status(401, 401, 200, 200),

    # v2.fetch_manifest_by_tagname
    IndexV2TestSpec('v2.fetch_manifest_by_tagname', 'GET', PUBLIC_REPO, manifest_ref=FAKE_MANIFEST).
      request_status(404, 404, 404, 404),

    IndexV2TestSpec('v2.fetch_manifest_by_tagname', 'GET', PRIVATE_REPO, manifest_ref=FAKE_MANIFEST).
      request_status(401, 401, 404, 404),

    IndexV2TestSpec('v2.fetch_manifest_by_tagname', 'GET', ORG_REPO, manifest_ref=FAKE_MANIFEST).
      request_status(401, 401, 404, 404),

    # v2.fetch_manifest_by_digest
    IndexV2TestSpec('v2.fetch_manifest_by_digest', 'GET', PUBLIC_REPO, manifest_ref=FAKE_DIGEST).
      request_status(404, 404, 404, 404),

    IndexV2TestSpec('v2.fetch_manifest_by_digest', 'GET', PRIVATE_REPO, manifest_ref=FAKE_DIGEST).
      request_status(401, 401, 404, 404),

    IndexV2TestSpec('v2.fetch_manifest_by_digest', 'GET', ORG_REPO, manifest_ref=FAKE_DIGEST).
      request_status(401, 401, 404, 404),

    # v2.write_manifest_by_tagname
    IndexV2TestSpec('v2.write_manifest_by_tagname', 'PUT', PUBLIC_REPO, manifest_ref=FAKE_MANIFEST).
      request_status(401, 401, 401, 401),

    IndexV2TestSpec('v2.write_manifest_by_tagname', 'PUT', PRIVATE_REPO, manifest_ref=FAKE_MANIFEST).
      request_status(401, 401, 401, 400),

    IndexV2TestSpec('v2.write_manifest_by_tagname', 'PUT', ORG_REPO, manifest_ref=FAKE_MANIFEST).
      request_status(401, 401, 401, 400),

    # v2.write_manifest_by_digest
    IndexV2TestSpec('v2.write_manifest_by_digest', 'PUT', PUBLIC_REPO, manifest_ref=FAKE_DIGEST).
      request_status(401, 401, 401, 401),

    IndexV2TestSpec('v2.write_manifest_by_digest', 'PUT', PRIVATE_REPO, manifest_ref=FAKE_DIGEST).
      request_status(401, 401, 401, 400),

    IndexV2TestSpec('v2.write_manifest_by_digest', 'PUT', ORG_REPO, manifest_ref=FAKE_DIGEST).
      request_status(401, 401, 401, 400),

    # v2.delete_manifest_by_digest
    IndexV2TestSpec('v2.delete_manifest_by_digest', 'DELETE', PUBLIC_REPO, manifest_ref=FAKE_DIGEST).
      request_status(401, 401, 401, 401),

    IndexV2TestSpec('v2.delete_manifest_by_digest', 'DELETE', PRIVATE_REPO, manifest_ref=FAKE_DIGEST).
      request_status(401, 401, 401, 404),

    IndexV2TestSpec('v2.delete_manifest_by_digest', 'DELETE', ORG_REPO, manifest_ref=FAKE_DIGEST).
      request_status(401, 401, 401, 404),

    # v2.check_blob_exists
    IndexV2TestSpec('v2.check_blob_exists', 'HEAD', PUBLIC_REPO, digest=FAKE_DIGEST).
      request_status(404, 404, 404, 404),

    IndexV2TestSpec('v2.check_blob_exists', 'HEAD', PRIVATE_REPO, digest=FAKE_DIGEST).
      request_status(401, 401, 404, 404),

    IndexV2TestSpec('v2.check_blob_exists', 'HEAD', ORG_REPO, digest=FAKE_DIGEST).
      request_status(401, 401, 404, 404),

    # v2.download_blob
    IndexV2TestSpec('v2.download_blob', 'GET', PUBLIC_REPO, digest=FAKE_DIGEST).
      request_status(404, 404, 404, 404),

    IndexV2TestSpec('v2.download_blob', 'GET', PRIVATE_REPO, digest=FAKE_DIGEST).
      request_status(401, 401, 404, 404),

    IndexV2TestSpec('v2.download_blob', 'GET', ORG_REPO, digest=FAKE_DIGEST).
      request_status(401, 401, 404, 404),

    # v2.start_blob_upload
    IndexV2TestSpec('v2.start_blob_upload', 'POST', PUBLIC_REPO).
      request_status(401, 401, 401, 401),

    IndexV2TestSpec('v2.start_blob_upload', 'POST', PRIVATE_REPO).
      request_status(401, 401, 401, 202),

    IndexV2TestSpec('v2.start_blob_upload', 'POST', ORG_REPO).
      request_status(401, 401, 401, 202),

    # v2.fetch_existing_upload
    IndexV2TestSpec('v2.fetch_existing_upload', 'GET', PUBLIC_REPO, 'push,pull', upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 401),

    IndexV2TestSpec('v2.fetch_existing_upload', 'GET', PRIVATE_REPO, 'push,pull', upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 404),

    IndexV2TestSpec('v2.fetch_existing_upload', 'GET', ORG_REPO, 'push,pull', upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 404),

    # v2.upload_chunk
    IndexV2TestSpec('v2.upload_chunk', 'PATCH', PUBLIC_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 401),

    IndexV2TestSpec('v2.upload_chunk', 'PATCH', PRIVATE_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 404),

    IndexV2TestSpec('v2.upload_chunk', 'PATCH', ORG_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 404),

    # v2.monolithic_upload_or_last_chunk
    IndexV2TestSpec('v2.monolithic_upload_or_last_chunk', 'PUT', PUBLIC_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 401),

    IndexV2TestSpec('v2.monolithic_upload_or_last_chunk', 'PUT', PRIVATE_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 400),

    IndexV2TestSpec('v2.monolithic_upload_or_last_chunk', 'PUT', ORG_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 400),

    # v2.cancel_upload
    IndexV2TestSpec('v2.cancel_upload', 'DELETE', PUBLIC_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 401),

    IndexV2TestSpec('v2.cancel_upload', 'DELETE', PRIVATE_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 404),

    IndexV2TestSpec('v2.cancel_upload', 'DELETE', ORG_REPO, upload_uuid=FAKE_UPLOAD_ID).
      request_status(401, 401, 401, 404),
  ]