TradingView Automated Alert Script

I need a small script that can log into my TradingView account, apply a Bollinger Bands indicator with parameters I will provide, watch the chart continuously, and fire an alert the moment the preset condition is met. The workflow is straightforward: once authenticated, the script should load the specific chart, attach the customised Bollinger Bands, update any parameter changes I pass in, and then keep monitoring in real time. When price touches or crosses the level I define, the alert must be sent instantly (we can discuss the exact delivery channel after you review your preferred approach). Robust session handling and a clean way for me to tweak the indicator values without touching the code are essential. Deliverables • Source code with clear comments • Simple config or UI for changing Bollinger Bands settings • Step-by-step setup instructions and a quick demo showing a live alert firing If you have previous TradingView automation experience, especially with headless logins or the built-in alerting/webhook system, you will be a perfect fit. I’m ready to get started as soon as we agree on a clear, testable solution.