Add schemas, endpoints and supporting tests

app/__init__.py

@@ -110,9 +110,11 @@ def register_blueprint(application):
 def register_v2_blueprints(application):
     from app.v2.notifications.post_notifications import notification_blueprint as post_notifications
     from app.v2.notifications.get_notifications import notification_blueprint as get_notifications
+    from app.v2.template.get_template import template_blueprint
 
     application.register_blueprint(post_notifications)
     application.register_blueprint(get_notifications)
+    application.register_blueprint(template_blueprint)
 
 
 def init_app(app):

app/models.py

@@ -320,6 +320,21 @@ def get_link(self):
             _external=True
         )
 
+    def serialize(self):
+
+        serialized = {
+            "id": self.id,
+            "type": self.template_type,
+            "created_at": self.created_at.strftime(DATETIME_FORMAT),
+            "updated_at": self.updated_at.strftime(DATETIME_FORMAT) if self.updated_at else None,
+            "created_by": self.created_by.email_address,
+            "version": self.version,
+            "body": self.content,
+            "subject": self.subject if self.template_type == EMAIL_TYPE else None
+        }
+
+        return serialized
+
 
 class TemplateHistory(db.Model):
     __tablename__ = 'templates_history'
@@ -343,6 +358,21 @@ class TemplateHistory(db.Model):
                              nullable=False,
                              default=NORMAL)
 
+    def serialize(self):
+
+        serialized = {
+            "id": self.id,
+            "type": self.template_type,
+            "created_at": self.created_at.strftime(DATETIME_FORMAT),
+            "updated_at": self.updated_at.strftime(DATETIME_FORMAT) if self.updated_at else None,
+            "created_by": self.created_by.email_address,
+            "version": self.version,
+            "body": self.content,
+            "subject": self.subject if self.template_type == EMAIL_TYPE else None
+        }
+
+        return serialized
+
 
 MMG_PROVIDER = "mmg"
 FIRETEXT_PROVIDER = "firetext"

app/v2/template/__init__.py

@@ -0,0 +1,7 @@
+from flask import Blueprint
+
+from app.v2.errors import register_errors
+
+template_blueprint = Blueprint("v2_template", __name__, url_prefix='/v2/template')
+
+register_errors(template_blueprint)

app/v2/template/get_template.py

@@ -0,0 +1,31 @@
+import uuid
+
+from flask import jsonify, request
+from werkzeug.exceptions import abort
+
+from app import api_user
+from app.dao import templates_dao
+from app.schema_validation import validate
+from app.v2.template import template_blueprint
+from app.v2.template.template_schemas import get_template_by_id_request
+
+
+@template_blueprint.route("/<template_id>", methods=['GET'])
+@template_blueprint.route("/<template_id>/version/<version>", methods=['GET'])
+def get_template_by_id(template_id, version=None):
+    try:
+        casted_id = uuid.UUID(template_id)
+
+        _data = {}
+        _data['id'] = template_id
+        if version:
+            _data['version'] = int(version)
+
+        data = validate(_data, get_template_by_id_request)
+    except ValueError or AttributeError:
+        abort(404)
+
+    template = templates_dao.dao_get_template_by_id_and_service_id(
+        casted_id, api_user.service_id, data.get('version'))
+
+    return jsonify(template.serialize()), 200

app/v2/template/template_schemas.py

@@ -0,0 +1,41 @@
+from app.models import TEMPLATE_TYPES
+from app.schema_validation.definitions import uuid
+
+
+get_template_by_id_request = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "description": "schema for query parameters allowed when getting list of notifications",
+    "type": "object",
+    "properties": {
+        "id": uuid,
+        "version": {"type": ["integer", "null"], "minimum": 1}
+    },
+    "required": ["id"],
+    "additionalProperties": False,
+}
+
+get_template_by_id_response = {
+    "$schema": "http://json-schema.org/draft-04/schema#",
+    "description": "GET template by id schema response",
+    "type": "object",
+    "title": "reponse v2/template",
+    "properties": {
+        "id": uuid,
+        "type": {"enum": TEMPLATE_TYPES},
+        "created_at": {
+            "format": "date-time",
+            "type": "string",
+            "description": "Date+time created"
+        },
+        "updated_at": {
+            "format": "date-time",
+            "type": "string",
+            "description": "Date+time updated"
+        },
+        "created_by": {"type": "string"},
+        "version": {"type": "integer"},
+        "body": {"type": "string"},
+        "subject": {"type": ["string", "null"]}
+    },
+    "required": ["id", "type", "created_at", "updated_at", "version", "created_by", "body"]
+}

tests/app/v2/template/test_get_template.py

@@ -0,0 +1,93 @@
+import pytest
+
+from flask import json
+
+from app import DATETIME_FORMAT
+from tests import create_authorization_header
+from tests.app.conftest import sample_template as create_sample_template
+
+EMAIL_TYPE = 'email'
+SMS_TYPE = 'sms'
+LETTER_TYPE = 'letter'
+
+template_types = [EMAIL_TYPE, SMS_TYPE, LETTER_TYPE]
+valid_version_params = [None, 1]
+
+
+@pytest.mark.parametrize("tmp_type", template_types)
+@pytest.mark.parametrize("version", valid_version_params)
+def test_get_email_template_by_id_returns_200(client, notify_db, notify_db_session, sample_service, tmp_type, version):
+    template = create_sample_template(notify_db, notify_db_session, template_type=tmp_type)
+    auth_header = create_authorization_header(service_id=sample_service.id)
+
+    version_path = '/version/{}'.format(version) if version else ''
+
+    response = client.get(path='/v2/template/{}{}'.format(template.id, version_path),
+                          headers=[('Content-Type', 'application/json'), auth_header])
+
+    assert response.status_code == 200
+    assert response.headers['Content-type'] == 'application/json'
+
+    json_response = json.loads(response.get_data(as_text=True))
+
+    expected_response = {
+        'id': '{}'.format(template.id),
+        'type': '{}'.format(template.template_type),
+        'created_at': template.created_at.strftime(DATETIME_FORMAT),
+        'updated_at': None,
+        'version': template.version,
+        'created_by': template.created_by.email_address,
+        'body': template.content,
+        "subject": template.subject if tmp_type == EMAIL_TYPE else None
+    }
+
+    assert json_response == expected_response
+
+
+def test_get_template_with_invalid_template_id_returns_404(client, sample_service):
+    auth_header = create_authorization_header(service_id=sample_service.id)
+
+    invalid_template_id = 'some_other_id'
+
+    response = client.get(path='/v2/template/{}'.format(invalid_template_id),
+                          headers=[('Content-Type', 'application/json'), auth_header])
+
+    assert response.status_code == 404
+    assert response.headers['Content-type'] == 'application/json'
+
+    json_response = json.loads(response.get_data(as_text=True))
+
+    assert json_response == {
+        "message": "The requested URL was not found on the server.  "
+                   "If you entered the URL manually please check your spelling and try again.",
+        "result": "error"
+    }
+
+
+@pytest.mark.parametrize("tmp_type", template_types)
+def test_get_template_with_invalid_version_returns_404(client, notify_db, notify_db_session, sample_service, tmp_type):
+    template = create_sample_template(
+        notify_db, notify_db_session, template_type=tmp_type)
+
+    auth_header = create_authorization_header(service_id=sample_service.id)
+
+    # test with version number beyond latest version
+    invalid_version = template.version + 1
+
+    response = client.get(path='/v2/template/{}/version/{}'.format(template.id, invalid_version),
+                          headers=[('Content-Type', 'application/json'), auth_header])
+
+    assert response.status_code == 404
+    assert response.headers['Content-type'] == 'application/json'
+
+    json_response = json.loads(response.get_data(as_text=True))
+
+    assert json_response == {
+        "errors": [
+            {
+                "error": "NoResultFound",
+                "message": "No result found"
+            }
+        ],
+        "status_code": 404
+    }

tests/app/v2/template/test_template_schemas.py

@@ -0,0 +1,67 @@
+import uuid
+
+import pytest
+from flask import json
+
+from app.v2.template.template_schemas import (
+    get_template_by_id_response,
+    get_template_by_id_request
+)
+from app.schema_validation import validate
+from jsonschema.exceptions import ValidationError
+
+
+valid_json = {
+    'id': str(uuid.uuid4()),
+    'type': 'email',
+    'created_at': '2017-01-10T18:25:43.511Z',
+    'updated_at': '2017-04-23T18:25:43.511Z',
+    'version': 1,
+    'created_by': 'someone@test.com',
+    'body': "some body"
+}
+
+valid_json_with_optionals = {
+    'id': str(uuid.uuid4()),
+    'type': 'email',
+    'created_at': '2017-01-10T18:25:43.511Z',
+    'updated_at': '2017-04-23T18:25:43.511Z',
+    'version': 1,
+    'created_by': 'someone',
+    'body': "some body",
+    'subject': "some subject"
+}
+
+valid_request_args = [
+    {"id": str(uuid.uuid4()), "version": 1}, {"id": str(uuid.uuid4())}]
+
+invalid_request_args = [
+    ({"id": str(uuid.uuid4()), "version": "test"}, ["version test is not of type integer, null"]),
+    ({"id": str(uuid.uuid4()), "version": 0}, ["version 0 is less than the minimum of 1"]),
+    ({"version": 1}, ["id is a required property"]),
+    ({"id": "invalid_uuid"}, ["id is not a valid UUID"]),
+    ({"id": "invalid_uuid", "version": 0}, ["version 0 is less than the minimum of 1",
+                                            "id is not a valid UUID"])
+]
+
+
+@pytest.mark.parametrize("args", valid_request_args)
+def test_get_template_request_schema__against_valid_args_is_valid(args):
+    assert validate(args, get_template_by_id_request) == args
+
+
+@pytest.mark.parametrize("args,error_message", invalid_request_args)
+def test_get_template_request_schema_against_invalid_args_is_invalid(args, error_message):
+    with pytest.raises(ValidationError) as e:
+        validate(args, get_template_by_id_request)
+    errors = json.loads(str(e.value))
+
+    assert errors['status_code'] == 400
+
+    for error in errors['errors']:
+        assert error['message'] in error_message
+
+
+@pytest.mark.parametrize("response", [valid_json, valid_json_with_optionals])
+def test_get_template_response_schema_is_valid(response):
+    assert validate(response, get_template_by_id_response) == response