import pytest
from sachet.server.users import manage
from click.testing import CliRunner

import os
os.environ["APP_SETTINGS"] = "sachet.server.config.TestingConfig"

from sachet.server import app, db

@pytest.fixture
def client():
    """Flask application with DB already set up and ready."""
    with app.test_client() as client:
        with app.app_context():
            db.drop_all()
            db.create_all()
            db.session.commit()
            yield client
            db.session.remove()
            db.drop_all()
        

@pytest.fixture
def flask_app_bare():
    """Flask application with empty DB."""
    with app.test_client() as client:
        with app.app_context():
            yield client
            db.drop_all()


@pytest.fixture
def users(client):
    """Creates all the test users.

    Returns a dictionary with all the info for each user.
    """
    userinfo = {
        "jeff": {
            "password": "1234",
            "admin": False
        },
        "administrator": {
            "password": "4321",
            "admin": True
        }
    }

    for user, info in userinfo.items():
        info["username"] = user
        manage.create_user(
            info["admin"],
            info["username"],
            info["password"]
        )

    return userinfo


@pytest.fixture
def validate_info(users):
    """Given a dictionary, validate the information against a given user's info."""
    def _validate(user, info):
        for k, v in info.items():
            assert users[user][k] == v

    return _validate


@pytest.fixture
def tokens(client, users):
    """Logs in all test users.

    Returns a dictionary of auth tokens for all test users.
    """

    toks = {}

    for user, creds in users.items():
        resp = client.post("/users/login", json={
            "username": creds["username"],
            "password": creds["password"]
        })
        resp_json = resp.get_json()
        token = resp_json.get("auth_token")
        assert token is not None and token != ""
        toks[creds["username"]] = token

    return toks


@pytest.fixture
def cli():
    """click's testing fixture"""
    return CliRunner()