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+Drone CI Pipeline Configuration
+This repository includes a CI pipeline configuration for Drone CI to automate testing and syntax validation for a project with PHP, HTML, React, and Python components.
+
+Pipeline Overview
+The .drone.yml file defines a multi-step pipeline that performs the following actions:
+
+Steps
+Check PHP Syntax
+Verifies the syntax of all .php files in the repository using PHP's built-in linter.
+
+Check HTML Syntax
+Uses the tidy tool to validate the syntax of all .html files in the repository.
+
+Run Tests for React Client
+Executes unit tests for the React client application if a package.json file exists in the services/client directory.
+
+Run Tests for Python Backend
+Installs dependencies, recreates the database, and runs unit tests for the Python backend application using pytest.
+
+Services
+PostgreSQL Database Service
+A PostgreSQL container named gamedb is set up to provide a testing database for the Python backend.
+How It Works
+Pipeline Configuration
+The pipeline is defined in the .drone.yml file. Each step uses a Docker container to provide the required environment and tools.
+
+Key Features
+PHP Syntax Check:
+Scans all .php files and ensures there are no syntax errors.
+
+HTML Syntax Check:
+Installs and uses the tidy tool to validate .html files.
+
+React Client Tests:
+Runs tests using yarn if a package.json file is present in the services/client directory.
+
+Python Backend Tests:
+Runs pytest after installing dependencies and recreating the database.
+
+Environment Variables
+The pipeline uses the following environment variables for the Python backend tests:
+
+FLASK_ENV: Set to production to ensure tests run in the correct environment.
+APP_SETTINGS: Specifies the configuration class for the Flask app.
+DATABASE_TEST_URL: Connection string for the testing database.
+Requirements
+Drone CI
+The pipeline requires a Drone CI server to execute the .drone.yml file.
+
+Docker
+The pipeline steps and services run in Docker containers, so Docker must be available on the Drone runner.
+
+Usage
+Local Testing
+Before pushing changes to the repository, you can manually test each component:
+
+PHP Syntax:
+
+bash
+Zkopírovat kód
+find . -type f -name '*.php' -exec php -l {} \;
+HTML Syntax:
+Install tidy and run:
+
+bash
+Zkopírovat kód
+find . -type f -name '*.html' -exec tidy -q -e {} \;
+React Client Tests:
+Navigate to services/client and run:
+
+bash
+Zkopírovat kód
+yarn install
+CI=true yarn test --coverage
+Python Backend Tests:
+Navigate to services/game and run:
+
+bash
+Zkopírovat kód
+pip install -r requirements.txt
+python manage.py recreate_db
+pytest --cov=project --cov-report=term-missing
+Running the Pipeline
+Push your changes to the repository.
+The pipeline will execute automatically in Drone CI.
+Review the results in the Drone CI dashboard.
+Directory Structure
+Ensure the following structure for the pipeline to work:
+
+bash
+Zkopírovat kód
+.
+├── services/
+│   ├── client/         # React client code
+│   │   ├── package.json
+│   │   ├── src/
+│   │   └── ...
+│   └── game/           # Python backend code
+│       ├── manage.py
+│       ├── requirements.txt
+│       └── ...
+├── .drone.yml          # Drone CI pipeline configuration
+└── README.md           # Project documentation
+Troubleshooting
+Common Issues
+Missing Directories:
+If the pipeline cannot find services/client or services/game, ensure your repository structure matches the expected layout.
+
+Missing Dependencies:
+Make sure all required dependencies are installed in package.json and requirements.txt.
+
+Database Connection Errors:
+Ensure the gamedb service is running and accessible by the Python backend.
+