import uuid

import pytest
from flask import json
from jsonschema import ValidationError

from app.v2.notifications.notification_schemas import (
    post_sms_request, post_sms_response, post_email_request, post_email_response
)
from app.schema_validation import validate

valid_json = {"phone_number": "07515111111",
              "template_id": str(uuid.uuid4())
              }
valid_json_with_optionals = {
    "phone_number": "07515111111",
    "template_id": str(uuid.uuid4()),
    "reference": "reference from caller",
    "personalisation": {"key": "value"}
}


@pytest.mark.parametrize("input", [valid_json, valid_json_with_optionals])
def test_post_sms_schema_is_valid(input):
    assert validate(input, post_sms_request) == input


def test_post_sms_json_schema_bad_uuid_and_missing_phone_number():
    j = {"template_id": "notUUID"}
    with pytest.raises(ValidationError) as e:
        validate(j, post_sms_request)
    error = json.loads(e.value.message)
    assert len(error.keys()) == 2
    assert error.get('status_code') == 400
    assert len(error.get('errors')) == 2
    assert {'error': 'ValidationError',
            'message': "phone_number is a required property"} in error['errors']
    assert {'error': 'ValidationError',
            'message': "template_id is not a valid UUID"} in error['errors']


def test_post_sms_schema_with_personalisation_that_is_not_a_dict():
    j = {
        "phone_number": "07515111111",
        "template_id": str(uuid.uuid4()),
        "reference": "reference from caller",
        "personalisation": "not_a_dict"
    }
    with pytest.raises(ValidationError) as e:
        validate(j, post_sms_request)
    error = json.loads(e.value.message)
    assert len(error.get('errors')) == 1
    assert error['errors'] == [{'error': 'ValidationError',
                                'message': "personalisation should contain key value pairs"}]
    assert error.get('status_code') == 400
    assert len(error.keys()) == 2


@pytest.mark.parametrize('invalid_phone_number, err_msg',
                         [('08515111111', 'phone_number Not a UK mobile number'),
                          ('07515111*11', 'phone_number Must not contain letters or symbols'),
                          ('notaphoneumber', 'phone_number Must not contain letters or symbols')])
def test_post_sms_request_invalid_phone_number(invalid_phone_number, err_msg):
    j = {"phone_number": invalid_phone_number,
         "template_id": str(uuid.uuid4())
         }
    with pytest.raises(ValidationError) as e:
        validate(j, post_sms_request)
    errors = json.loads(e.value.message).get('errors')
    assert len(errors) == 1
    assert {"error": "ValidationError", "message": err_msg} == errors[0]


def test_post_sms_request_invalid_phone_number_and_missing_template():
    j = {"phone_number": '08515111111',
         }
    with pytest.raises(ValidationError) as e:
        validate(j, post_sms_request)
    errors = json.loads(e.value.message).get('errors')
    assert len(errors) == 2
    assert {"error": "ValidationError", "message": "phone_number Not a UK mobile number"} in errors
    assert {"error": "ValidationError", "message": "template_id is a required property"} in errors


valid_response = {
    "id": str(uuid.uuid4()),
    "content": {"body": "contents of message",
                "from_number": "46045"},
    "uri": "/v2/notifications/id",
    "template": {"id": str(uuid.uuid4()),
                 "version": 1,
                 "uri": "/v2/template/id"}
}

valid_response_with_optionals = {
    "id": str(uuid.uuid4()),
    "reference": "reference_from_service",
    "content": {"body": "contents of message",
                "from_number": "46045"},
    "uri": "/v2/notifications/id",
    "template": {"id": str(uuid.uuid4()),
                 "version": 1,
                 "uri": "/v2/template/id"}
}


@pytest.mark.parametrize('input', [valid_response])
def test_post_sms_response_schema_is_valid(input):
    assert validate(input, post_sms_response) == input


def test_post_sms_response_schema_missing_uri():
    j = valid_response
    del j["uri"]
    with pytest.raises(ValidationError) as e:
        validate(j, post_sms_response)
    error = json.loads(e.value.message)
    assert error['status_code'] == 400
    assert error['errors'] == [{'error': 'ValidationError',
                               'message': "uri is a required property"}]


valid_post_email_json = {"email_address": "test@example.gov.uk",
                         "template_id": str(uuid.uuid4())
                         }
valid_post_email_json_with_optionals = {
    "email_address": "test@example.gov.uk",
    "template_id": str(uuid.uuid4()),
    "reference": "reference from caller",
    "personalisation": {"key": "value"}
}


@pytest.mark.parametrize("input", [valid_post_email_json, valid_post_email_json_with_optionals])
def test_post_email_schema_is_valid(input):
    assert validate(input, post_email_request) == input


def test_post_email_schema_bad_uuid_and_missing_email_address():
    j = {"template_id": "bad_template"}
    with pytest.raises(ValidationError):
        validate(j, post_email_request)


def test_post_email_schema_invalid_email_address():
    j = {"template_id": str(uuid.uuid4()),
         "email_address": "notavalidemail@address"}
    with pytest.raises(ValidationError):
        validate(j, post_email_request)


valid_email_response = {"id": str(uuid.uuid4()),
                        "content": {"body": "the body of the message",
                                    "subject": "subject of the message",
                                    "from_email": "service@dig.gov.uk"},
                        "uri": "/v2/notifications/id",
                        "template": {"id": str(uuid.uuid4()),
                                     "version": 1,
                                     "uri": "/v2/template/id"}
                        }
valid_email_response_with_optionals = {"id": str(uuid.uuid4()),
                                       "reference": "some reference",
                                       "content": {"body": "the body of the message",
                                                   "subject": "subject of the message",
                                                   "from_email": "service@dig.gov.uk"},
                                       "uri": "/v2/notifications/id",
                                       "template": {"id": str(uuid.uuid4()),
                                                    "version": 1,
                                                    "uri": "/v2/template/id"}
                                       }


@pytest.mark.parametrize("input", [valid_email_response, valid_email_response_with_optionals])
def test_post_email_response(input):
    assert validate(input, post_email_response) == input