Тестовое задание

.flaskenv

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+FLASK_APP=task_python.py
+SECRET_KEY=slks;qwepoir

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/

app/__init__.py

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+from flask import Flask
+from config import Config
+from flask_sqlalchemy import SQLAlchemy
+from flask_migrate import Migrate
+
+
+db = SQLAlchemy()
+migrate = Migrate()
+
+
+def create_app(config_class=Config):
+    app = Flask(__name__)
+    app.config.from_object(config_class)
+
+    db.init_app(app)
+    migrate.init_app(app, db)
+
+    from app.api import bp as api_bp
+    app.register_blueprint(api_bp, url_prefix='/api/v1')
+
+    return app
+
+from app import models

app/api/__init__.py

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+from flask import Blueprint
+
+bp = Blueprint('api', __name__)
+
+from app.api import services, errors

app/api/errors.py

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+from flask import jsonify
+from werkzeug.http import HTTP_STATUS_CODES
+
+
+def error_response(status_code, message=None):
+    payload = {'error': HTTP_STATUS_CODES.get(status_code, 'Unknown error')}
+    if message:
+        payload['message'] = message
+    response = jsonify(payload)
+    response.status_code = status_code
+    return response
+
+
+def bad_request(message):
+    return error_response(400, message)

app/api/services.py

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+from app.api import bp
+from flask import jsonify, request
+from app.models import Service
+from app.api.errors import bad_request
+from app import db
+import datetime as dt
+
+
+@bp.route('/services/<int:id>', methods=['GET'])
+def get_statuses(id):
+    '''
+    По имени сервиса выдает историю изменения 
+    состояния и все данные по каждому состоянию
+    '''
+    return jsonify(Service.query.get_or_404(id).statuses_to_dict())
+
+
+@bp.route('/services', methods=['GET'])
+def get_services():
+    '''
+    Выводит список сервисов с актуальным состоянием
+    '''
+    return jsonify(Service.all_services())
+
+
+@bp.route('/services/<int:id>/sla', methods=['GET'])
+def get_sla(id):
+    '''
+    По указанному интервалу выдается информация 
+    о том сколько не работал сервис и считать SLA
+    в процентах до 3-й запятой
+    '''
+    from_str = request.args.get('from_dt', type=str)
+    to_str = request.args.get('to_dt', type=str)
+    service = Service.query.get_or_404(id)
+    try:
+        from_dt = dt.datetime.strptime(from_str, '%Y-%m-%d %H:%M:%S')
+        to_dt = dt.datetime.strptime(to_str, '%Y-%m-%d %H:%M:%S')
+    except Exception:
+        return bad_request('use ISO 8601 for datetime objects: "%Y-%m-%d %H:%M:%S"')
+    return jsonify(service.get_sla(from_dt=from_dt, to_dt=to_dt))
+
+@bp.route('/services', methods=['POST'])
+def create_service():
+    '''
+    Получает и сохраняет данные: имя, состояние, описание
+    '''
+    data = request.get_json() or {}
+    if 'name' not in data or 'status' not in data or 'description' not in data:
+        return bad_request('must include name, status and description')
+    if Service.query.filter_by(name=data['name']).first():
+        return bad_request('please use a different name')
+    if data['status'] not in ['out of service', 'online', 'unstable']:
+        return bad_request('status must be one of "out of service", "online", "unstable"')
+    service = Service()
+    service.from_dict(data=data, new_service=True)
+    db.session.add(service)
+    db.session.commit()
+    response = jsonify(service.actual_status())
+    response.status_code = 201
+    return response
+
+
+@bp.route('/services/<int:id>', methods=['PUT'])
+def update_service(id):
+    '''
+    обновление статуса
+    '''
+    service = Service.query.get_or_404(id)
+    data = request.get_json() or {}
+    if 'name' in data and data['name'] != service.name and \
+            Service.query.filter_by(name=data['name']).first():
+        return bad_request('please use a different name')
+    if 'status' in data and data['status'] == service.statuses[-1].name:
+        return bad_request('status is not changed')
+    if 'status' in data and data['status'] not in ['out of service', 'online', 'unstable']:
+        return bad_request('status must be one of "out of service", "online", "unstable"')
+    service.from_dict(data, new_service=False)
+    db.session.commit()
+    return jsonify(service.actual_status())