import pytest

from ceod.model import User
from mysql.connector import connect
from mysql.connector.errors import InterfaceError, ProgrammingError


def test_api_create_mysql_db(cfg, client, g_admin_ctx, create_user_result):
    uid = create_user_result['uid']
    with g_admin_ctx():
        user = User(uid='someone_else', cn='Some Name', terms=['s2021'])
        user.add_to_ldap()

    # user should be able to create db for themselves
    status, data = client.post(f"/api/mysql/{uid}", json={}, principal=uid)
    assert status == 200
    assert 'password' in data
    passwd = data['password']

    # conflict if attempting to create db when already has one
    status, data = client.post(f"/api/mysql/{uid}", json={}, principal=uid)
    assert status == 409

    # normal user cannot create db for others
    status, data = client.post("/api/mysql/someone_else", json={}, principal=uid)
    assert status == 403

    # cannot create db for user not in ldap
    status, data = client.post("/api/mysql/user_not_found", json={})
    assert status == 404

    # cannot create db when username contains symbols
    status, data = client.post("/api/mysql/#invalid", json={})
    assert status == 400

    with connect(
        host=cfg.get('ceod_database_host'),
        user=uid,
        password=passwd,
    ) as con:
        with con.cursor() as cur:
            cur.execute("SHOW DATABASES")
            response = cur.fetchall()
            assert len(response) == 2

            with pytest.raises(ProgrammingError):
                cur.execute("CREATE DATABASE new_db")

    status, data = client.delete(f"/api/mysql/{uid}", json={})
    assert status == 200

    # user should be deleted
    with pytest.raises(InterfaceError):
        con = connect(
            host=cfg.get('ceod_database_host'),
            user=uid,
            password=passwd,
        )

    # db should be deleted
    with connect(
            host=cfg.get('ceod_database_host'),
            user=cfg.get('mysql_username'),
            password=cfg.get('mysql_password'),
    ) as con:
        with con.cursor() as cur:
            cur.execute(f"SHOW DATABASES LIKE '{uid}'")
            response = cur.fetchall()
            assert len(response) == 0

    with g_admin_ctx():
        user.remove_from_ldap()


def test_api_passwd_reset_mysql(cfg, client, g_admin_ctx, create_user_result):
    with g_admin_ctx():
        user = User(uid='someone_else', cn='Some Name', terms=['s2021'])
        user.add_to_ldap()

    uid = create_user_result['uid']

    status, data = client.post(f"/api/mysql/{uid}", json={})
    assert status == 200
    assert 'password' in data
    old_passwd = data['password']

    con = connect(
        host=cfg.get('ceod_database_host'),
        user=uid,
        password=old_passwd,
    )
    con.close()

    # normal user can get a password reset for themselves
    status, data = client.post(f"/api/mysql/{uid}/pwreset", json={}, principal=uid)
    assert status == 200
    assert 'password' in data
    new_passwd = data['password']

    assert old_passwd != new_passwd

    # normal user cannot reset password for others
    status, data = client.post(f"/api/mysql/{uid}/pwreset", json={}, principal='someone_else')
    assert status == 403

    # cannot password reset a user that does not have a database
    status, data = client.post("/api/mysql/someone_else/pwreset", json={})
    assert status == 404

    con = connect(
        host=cfg.get('ceod_database_host'),
        user=uid,
        password=new_passwd,
    )
    con.close()

    status, data = client.delete(f"/api/mysql/{uid}", json={})
    assert status == 200

    with g_admin_ctx():
        user.remove_from_ldap()