import os

import pytest
import shutil
from flask import Flask, jsonify
from flask.ext.login import LoginManager
from peewee import SqliteDatabase

from app import app as application
from data import model
from data.database import (close_db_filter, db)
from data.model.user import LoginWrappedDBUser
from endpoints.api import api_bp
from initdb import initialize_database, populate_database
from path_converters import APIRepositoryPathConverter, RegexConverter


@pytest.fixture()
def app(appconfig):
  """ Used by pytest-flask plugin to inject app by test for client See test_security by name injection of client. """
  app = Flask(__name__)
  login_manager = LoginManager(app)

  @app.errorhandler(model.DataModelException)
  def handle_dme(ex):
    response = jsonify({'message': ex.message})
    response.status_code = 400
    return response

  @login_manager.user_loader
  def load_user(user_uuid):
    return LoginWrappedDBUser(user_uuid)

  app.url_map.converters['regex'] = RegexConverter
  app.url_map.converters['apirepopath'] = APIRepositoryPathConverter
  app.register_blueprint(api_bp, url_prefix='/api')
  app.config.update(appconfig)
  return app


@pytest.fixture(scope="session")
def init_db_path(tmpdir_factory):
  """ Creates a new db and appropriate configuration. Used for parameter by name injection. """
  sqlitedb_file = str(tmpdir_factory.mktemp("data").join("test.db"))
  sqlitedb = 'sqlite:///{0}'.format(sqlitedb_file)
  conf = {"TESTING": True,
          "DEBUG": True,
          "DB_URI": sqlitedb}
  os.environ['TEST_DATABASE_URI'] = str(sqlitedb)
  os.environ['DB_URI'] = str(sqlitedb)
  db.initialize(SqliteDatabase(sqlitedb_file))
  application.config.update(conf)
  application.config.update({"DB_URI": sqlitedb})
  initialize_database()
  populate_database()
  close_db_filter(None)
  return str(sqlitedb_file)


@pytest.fixture()
def database_uri(monkeypatch, init_db_path, sqlitedb_file):
  """ Creates the db uri. Used for parameter by name injection. """
  shutil.copy2(init_db_path, sqlitedb_file)
  db.initialize(SqliteDatabase(sqlitedb_file))
  db_path = 'sqlite:///{0}'.format(sqlitedb_file)
  monkeypatch.setenv("DB_URI", db_path)
  return db_path


@pytest.fixture()
def sqlitedb_file(tmpdir):
  """ Makes file for db. Used for parameter by name injection. """
  test_db_file = tmpdir.mkdir("quaydb").join("test.db")
  return str(test_db_file)


@pytest.fixture()
def appconfig(database_uri):
  """ Makes conf with database_uri. Used for parameter by name injection """
  conf = {
    "TESTING": True,
    "DEBUG": True,
    "DB_URI": database_uri,
    "SECRET_KEY": 'superdupersecret!!!1',
  }
  return conf