import uuid
from datetime import datetime, timedelta, timezone
from unittest.mock import patch
from urllib.parse import parse_qs, urlparse

import freezegun
import pytest
from flask import session as flask_session
from flask import url_for
from flask.testing import FlaskClient
from flask_login import login_user

from app.enums import ServicePermission
from app.models.user import User

# Add itsdangerous to the libraries which freezegun ignores to avoid errors.
# In tests where we freeze time, the code in the test function will get the frozen time but the
# fixtures will be using the current time. This causes itsdangerous to raise an exception - when
# the session is decoded it appears to be created in the future.
freezegun.configure(extend_ignore_list=["itsdangerous"])


class TestClient(FlaskClient):
    def login(self, user, mocker=None, service=None):
        # Skipping authentication here and just log them in
        model_user = User(user)
        with self.session_transaction() as session:
            session["current_session_id"] = model_user.current_session_id
            session["user_id"] = model_user.id
        if mocker:
            mocker.patch("app.user_api_client.get_user", return_value=user)
        if mocker and service:
            with self.session_transaction() as session:
                session["service_id"] = service["id"]
            mocker.patch(
                "app.service_api_client.get_service", return_value={"data": service}
            )

        with patch("app.events_api_client.create_event"):
            login_user(model_user)
        with self.session_transaction() as test_session:
            for key, value in flask_session.items():
                test_session[key] = value

    def logout(self, user):
        self.get(url_for("main.sign_out"))


def sample_uuid():
    return "6ce466d0-fd6a-11e5-82f5-e0accb9d11a6"


def generate_uuid():
    return uuid.uuid4()


def created_by_json(id_, name="", email_address=""):
    return {"id": id_, "name": name, "email_address": email_address}


def user_json(
    id_="1234",
    name="Test User",
    email_address="test@gsa.gov",
    mobile_number="+12028675109",
    password_changed_at=None,
    permissions=None,
    auth_type="sms_auth",
    failed_login_count=0,
    logged_in_at=None,
    state="active",
    platform_admin=False,
    current_session_id="1234",
    organizations=None,
    services=None,
):
    if permissions is None:
        permissions = {
            str(generate_uuid()): [
                ServicePermission.VIEW_ACTIVITY,
                ServicePermission.SEND_TEXTS,
                ServicePermission.SEND_EMAILS,
                ServicePermission.MANAGE_USERS,
                ServicePermission.MANAGE_TEMPLATES,
                ServicePermission.MANAGE_SETTINGS,
                "manage_api_keys",
            ]
        }

    if services is None:
        services = [str(service_id) for service_id in permissions.keys()]

    return {
        "id": id_,
        "name": name,
        "email_address": email_address,
        "mobile_number": mobile_number,
        "password_changed_at": password_changed_at,
        "permissions": permissions,
        "auth_type": auth_type,
        "failed_login_count": failed_login_count,
        "logged_in_at": logged_in_at
        or datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S.%f"),
        "state": state,
        "platform_admin": platform_admin,
        "current_session_id": current_session_id,
        "organizations": organizations or [],
        "services": services,
    }


def invited_user(
    _id="1234",
    service=None,
    from_user="1234",
    email_address="testinviteduser@gsa.gov",
    permissions=None,
    status="pending",
    created_at=None,
    auth_type="sms_auth",
    organization=None,
):
    data = {
        "id": _id,
        "from_user": from_user,
        "email_address": email_address,
        "status": status,
        "created_at": created_at or datetime.utcnow(),
        "auth_type": auth_type,
    }
    if service:
        data["service"] = service
    if permissions:
        data["permissions"] = permissions
    if organization:
        data["organization"] = organization

    return data


def service_json(
    id_="1234",
    name="Test Service",
    users=None,
    message_limit=1000,
    active=True,
    restricted=True,
    email_from=None,
    reply_to_email_address=None,
    sms_sender="USGOV",
    research_mode=False,
    email_branding=None,
    branding="federal",
    created_at=None,
    inbound_api=None,
    service_callback_api=None,
    permissions=None,
    organization_type="federal",
    prefix_sms=True,
    contact_link=None,
    organization_id=None,
    rate_limit=3000,
    notes=None,
    billing_contact_email_addresses=None,
    billing_contact_names=None,
    billing_reference=None,
    purchase_order_number=None,
):
    if users is None:
        users = []
    if permissions is None:
        permissions = ["email", "sms"]
    if service_callback_api is None:
        service_callback_api = []
    if inbound_api is None:
        inbound_api = []
    return {
        "id": id_,
        "name": name,
        "users": users,
        "message_limit": message_limit,
        "rate_limit": rate_limit,
        "active": active,
        "restricted": restricted,
        "email_from": email_from,
        "reply_to_email_address": reply_to_email_address,
        "sms_sender": sms_sender,
        "research_mode": research_mode,
        "organization_type": organization_type,
        "email_branding": email_branding,
        "branding": branding,
        "created_at": created_at or str(datetime.utcnow()),
        "permissions": permissions,
        "inbound_api": inbound_api,
        "service_callback_api": service_callback_api,
        "prefix_sms": prefix_sms,
        "contact_link": contact_link,
        "volume_email": 111111,
        "volume_sms": 222222,
        "consent_to_research": True,
        "count_as_live": True,
        "organization": organization_id,
        "notes": notes,
        "billing_contact_email_addresses": billing_contact_email_addresses,
        "billing_contact_names": billing_contact_names,
        "billing_reference": billing_reference,
        "purchase_order_number": purchase_order_number,
    }


def organization_json(
    id_="1234",
    name=False,
    users=None,
    active=True,
    created_at=None,
    services=None,
    email_branding_id=None,
    domains=None,
    agreement_signed=False,
    agreement_signed_version=None,
    agreement_signed_by_id=None,
    agreement_signed_on_behalf_of_name=None,
    agreement_signed_on_behalf_of_email_address=None,
    organization_type="federal",
    notes=None,
    billing_contact_email_addresses=None,
    billing_contact_names=None,
    billing_reference=None,
    purchase_order_number=None,
):
    if users is None:
        users = []
    if services is None:
        services = []
    return {
        "id": id_,
        "name": "Test Organization" if name is False else name,
        "active": active,
        "users": users,
        "created_at": created_at or str(datetime.utcnow()),
        "email_branding_id": email_branding_id,
        "organization_type": organization_type,
        "agreement_signed": agreement_signed,
        "agreement_signed_at": None,
        "agreement_signed_by_id": agreement_signed_by_id,
        "agreement_signed_version": agreement_signed_version,
        "agreement_signed_on_behalf_of_name": agreement_signed_on_behalf_of_name,
        "agreement_signed_on_behalf_of_email_address": agreement_signed_on_behalf_of_email_address,
        "domains": domains or [],
        "count_of_live_services": len(services),
        "notes": notes,
        "billing_contact_email_addresses": billing_contact_email_addresses,
        "billing_contact_names": billing_contact_names,
        "billing_reference": billing_reference,
        "purchase_order_number": purchase_order_number,
    }


def template_json(
    service_id,
    id_,
    name="sample template",
    type_=None,
    content=None,
    subject=None,
    version=1,
    archived=False,
    process_type="normal",
    redact_personalisation=None,
    reply_to=None,
    reply_to_text=None,
    folder=None,
):
    template = {
        "id": id_,
        "name": name,
        "template_type": type_ or "sms",
        "content": content,
        "service": service_id,
        "version": version,
        "updated_at": datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S.%f"),
        "archived": archived,
        "process_type": process_type,
        "reply_to": reply_to,
        "reply_to_text": reply_to_text,
        "folder": folder,
    }
    if content is None:
        template["content"] = "template content"
    if subject is None and type_ != "sms":
        template["subject"] = "template subject"
    if subject is not None:
        template["subject"] = subject
    if redact_personalisation is not None:
        template["redact_personalisation"] = redact_personalisation
    return template


def template_version_json(
    service_id, id_, created_by, version=1, created_at=None, **kwargs
):
    template = template_json(service_id, id_, **kwargs)
    template["created_by"] = created_by_json(
        created_by["id"],
        created_by["name"],
        created_by["email_address"],
    )
    if created_at is None:
        created_at = datetime.utcnow().strftime("%Y-%m-%d %H:%M:%S.%f")
    template["created_at"] = created_at
    template["version"] = version
    return template


def api_key_json(id_, name, expiry_date=None):
    return {"id": id_, "name": name, "expiry_date": expiry_date}


def invite_json(
    id_,
    from_user,
    service_id,
    email_address,
    permissions,
    created_at,
    status,
    auth_type,
    folder_permissions,
):
    return {
        "id": id_,
        "from_user": from_user,
        "service": service_id,
        "email_address": email_address,
        "status": status,
        "permissions": permissions,
        "created_at": created_at,
        "auth_type": auth_type,
        "folder_permissions": folder_permissions,
    }


def org_invite_json(id_, invited_by, org_id, email_address, created_at, status):
    return {
        "id": id_,
        "invited_by": invited_by,
        "organization": org_id,
        "email_address": email_address,
        "status": status,
        "created_at": created_at,
    }


def inbound_sms_json():
    return {
        "has_next": True,
        "data": [
            {
                "user_number": phone_number,
                "notify_number": "+12028675309",
                "content": f"message-{index + 1}",
                "created_at": (
                    datetime.utcnow() - timedelta(minutes=60 * hours_ago, seconds=index)
                ).isoformat(),
                "id": sample_uuid(),
            }
            for index, hours_ago, phone_number in (
                (0, 1, "+12028675300"),
                (1, 1, "2028675300"),
                (2, 1, "2028675300"),
                (3, 3, "2028675302"),
                (4, 5, "+33(0)1 12345678"),  # France
                (5, 7, "+1-202-555-0104"),  # USA in one format
                (6, 9, "+12025550104"),  # USA in another format
                (7, 9, "+68212345"),  # Cook Islands
            )
        ],
    }


TEST_USER_EMAIL = "test@user.gsa.gov"


def create_test_api_user(state, permissions=None):
    user_data = {
        "id": 1,
        "name": "Test User",
        "password": "somepassword",
        "email_address": TEST_USER_EMAIL,
        "mobile_number": "+12021234123",
        "state": state,
        "permissions": permissions or {},
    }
    return user_data


def job_json(
    service_id,
    created_by,
    job_id=None,
    template_id=None,
    template_version=1,
    template_type="sms",
    template_name="Example template",
    created_at=None,
    bucket_name="",
    original_file_name="thisisatest.csv",
    notification_count=1,
    notifications_sent=1,
    notifications_requested=1,
    job_status="finished",
    scheduled_for="",
    processing_started=None,
):
    if job_id is None:
        job_id = str(generate_uuid())
    if template_id is None:
        template_id = "5d729fbd-239c-44ab-b498-75a985f3198f"
    if created_at is None:
        created_at = str(datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%S.%f%z"))
    data = {
        "id": job_id,
        "service": service_id,
        "template": template_id,
        "template_name": template_name,
        "template_version": template_version,
        "template_type": template_type,
        "original_file_name": original_file_name,
        "created_at": created_at,
        "notification_count": notification_count,
        "notifications_sent": notifications_sent,
        "notifications_requested": notifications_requested,
        "job_status": job_status,
        "statistics": [
            {
                "status": "blah",
                "count": notifications_requested,
            }
        ],
        "created_by": created_by_json(
            created_by["id"],
            created_by["name"],
            created_by["email_address"],
        ),
    }
    if scheduled_for:
        data.update(scheduled_for=scheduled_for)
    if processing_started:
        data.update(processing_started=processing_started)
    return data


def notification_json(
    service_id,
    job=None,
    template=None,
    to=None,
    status=None,
    sent_at=None,
    job_row_number=None,
    created_at=None,
    updated_at=None,
    with_links=False,
    rows=5,
    personalisation=None,
    template_type=None,
    reply_to_text=None,
    client_reference=None,
    created_by_name=None,
):
    if template is None:
        template = template_json(service_id, str(generate_uuid()), type_=template_type)
    if to is None:
        if template_type == "email":
            to = "example@gsa.gov"
        else:
            to = "2021234567"
    if sent_at is None:
        sent_at = str(datetime.utcnow().time())
    if created_at is None:
        created_at = datetime.now(timezone.utc).isoformat()
    if updated_at is None:
        updated_at = str((datetime.utcnow() + timedelta(minutes=1)).time())
    if status is None:
        status = "delivered"
    links = {}

    if with_links:
        links = {
            "prev": "/service/{}/notifications?page=0".format(service_id),
            "next": "/service/{}/notifications?page=1".format(service_id),
            "last": "/service/{}/notifications?page=2".format(service_id),
        }

    job_payload = None
    if job:
        job_payload = {"id": job["id"], "original_file_name": job["original_file_name"]}

    data = {
        "notifications": [
            {
                "id": sample_uuid(),
                "to": to,
                "template": template,
                "job": job_payload,
                "sent_at": sent_at,
                "status": status,
                "created_at": created_at,
                "created_by": None,
                "updated_at": updated_at,
                "job_row_number": job_row_number,
                "service": service_id,
                "template_version": template["version"],
                "personalisation": personalisation or {},
                "notification_type": template_type,
                "reply_to_text": reply_to_text,
                "client_reference": client_reference,
                "created_by_name": None,
            }
            for i in range(rows)
        ],
        "total": rows,
        "page_size": 50,
        "links": links,
    }
    return data


def single_notification_json(
    service_id,
    job=None,
    template=None,
    status=None,
    sent_at=None,
    created_at=None,
    updated_at=None,
    notification_type="sms",
):
    if template is None:
        template = template_json(service_id, str(generate_uuid()))
    if sent_at is None:
        sent_at = str(datetime.utcnow())
    if created_at is None:
        created_at = str(datetime.utcnow())
    if updated_at is None:
        updated_at = str(datetime.utcnow() + timedelta(minutes=1))
    if status is None:
        status = "delivered"
    job_payload = None
    if job:
        job_payload = {"id": job["id"], "original_file_name": job["original_file_name"]}

    data = {
        "sent_at": sent_at,
        "to": "2021234567",
        "billable_units": 1,
        "status": status,
        "created_at": created_at,
        "reference": None,
        "updated_at": updated_at,
        "template_version": 5,
        "service": service_id,
        "id": "29441662-17ce-4ffe-9502-fcaed73b2826",
        "template": template,
        "job_row_number": 0,
        "notification_type": notification_type,
        "api_key": None,
        "job": job_payload,
        "sent_by": "mmg",
    }
    return data


def validate_route_permission(
    mocker,
    notify_admin,
    method,
    response_code,
    route,
    permissions,
    usr,
    service,
    session=None,
):
    usr["permissions"][str(service["id"])] = permissions
    usr["services"] = [service["id"]]
    mocker.patch("app.user_api_client.check_verify_code", return_value=(True, ""))
    mocker.patch("app.service_api_client.get_services", return_value={"data": []})
    mocker.patch("app.service_api_client.update_service", return_value=service)
    mocker.patch(
        "app.service_api_client.update_service_with_properties", return_value=service
    )
    mocker.patch("app.user_api_client.get_user", return_value=usr)
    mocker.patch("app.user_api_client.get_user_by_email", return_value=usr)
    mocker.patch("app.service_api_client.get_service", return_value={"data": service})
    mocker.patch("app.models.user.Users.client_method", return_value=[usr])
    mocker.patch("app.job_api_client.has_jobs", return_value=False)
    with notify_admin.test_request_context():
        with notify_admin.test_client() as client:
            client.login(usr)
            if session:
                with client.session_transaction() as session_:
                    for k, v in session.items():
                        session_[k] = v
            resp = None
            if method == "GET":
                resp = client.get(route)
            elif method == "POST":
                resp = client.post(route)
            else:
                pytest.fail("Invalid method call {}".format(method))
            if resp.status_code != response_code:
                pytest.fail("Invalid permissions set for endpoint {}".format(route))
    return resp


def validate_route_permission_with_client(
    mocker, client, method, response_code, route, permissions, usr, service
):
    usr["permissions"][str(service["id"])] = permissions
    mocker.patch("app.user_api_client.check_verify_code", return_value=(True, ""))
    mocker.patch("app.service_api_client.get_services", return_value={"data": []})
    mocker.patch("app.service_api_client.update_service", return_value=service)
    mocker.patch(
        "app.service_api_client.update_service_with_properties", return_value=service
    )
    mocker.patch("app.user_api_client.get_user", return_value=usr)
    mocker.patch("app.user_api_client.get_user_by_email", return_value=usr)
    mocker.patch("app.service_api_client.get_service", return_value={"data": service})
    mocker.patch("app.user_api_client.get_users_for_service", return_value=[usr])
    mocker.patch("app.job_api_client.has_jobs", return_value=False)
    client.login(usr)
    resp = None
    if method == "GET":
        resp = client.get_response_from_url(route, _expected_status=response_code)
    elif method == "POST":
        resp = client.post_response_from_url(route, _expected_status=response_code)
    else:
        pytest.fail("Invalid method call {}".format(method))
    if resp.status_code != response_code:
        pytest.fail("Invalid permissions set for endpoint {}".format(route))
    return resp


def assert_url_expected(actual, expected):
    actual_parts = urlparse(actual)
    expected_parts = urlparse(expected)
    for attribute in actual_parts._fields:
        if attribute == "query":
            # query string ordering can be non-deterministic
            # so we need to parse it first, which gives us a
            # dictionary of keys and values, not a
            # serialized string
            assert parse_qs(expected_parts.query) == parse_qs(actual_parts.query)
        else:
            assert getattr(actual_parts, attribute) == getattr(
                expected_parts, attribute
            ), ("Expected redirect: {}\n" "Actual redirect: {}").format(
                expected, actual
            )


def find_element_by_tag_and_partial_text(page, tag, string):
    return [e for e in page.find_all(tag) if string in e.text][0]