From dd8d70f6f026842e3d109b777abfcbd732dd8462 Mon Sep 17 00:00:00 2001 From: Kristy Fournier <124598538+kristy-fournier@users.noreply.github.com> Date: Thu, 17 Oct 2024 12:27:20 -0400 Subject: [PATCH] RaspPi integration plan --- plan.md | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 plan.md diff --git a/plan.md b/plan.md new file mode 100644 index 0000000..8cd568d --- /dev/null +++ b/plan.md @@ -0,0 +1,33 @@ +To design a self-running app for your Raspberry Pi based on your requirements, here’s a step-by-step plan that you can follow. I'll guide you through the steps without giving the full solution, so you can piece it together. + +### Steps to Implement + +1. **Automating Raspberry Pi Startup Actions:** + - **Systemd Service**: Use `systemd` to create a service that will automatically run when the Pi starts. This can manage your app’s startup logic. + - **Startup Script**: Alternatively, you can create a simple shell script that runs on boot, either placed in `/etc/rc.local` or managed by `cron` with the `@reboot` directive. + +2. **Detect USB Flash Drive on Boot:** + - **Automounting USB**: Set up the Raspberry Pi to automount flash drives when plugged in. Look into editing `/etc/fstab` or using the `usbmount` package. + - **Checking for MP3s**: Write Python logic that checks the mounted drives for files with `.mp3` extension. Use libraries like `os` or `pathlib` to scan directories. + +3. **Copying MP3s to a Directory:** + - You can use the `shutil` library in Python to handle file copying. + - Ensure this logic only triggers when new files are found (so you don’t overwrite your existing directory unnecessarily). + +4. **Running the Database Generator:** + - Since you only want the database generator to run when needed, you can add a condition to check whether the MP3s were updated. For example, store a checksum or file modification time, and if there's a change, trigger the generator. + +5. **Running the Flask Web Server:** + - After copying the files and running the database generator (if needed), the script should launch your Flask web server. + - Flask can be run as part of your startup service as well, once the other tasks are complete. + +### Suggested Order of Operations +- On boot, run your startup script. +- Check for connected USB drives. +- If MP3s are found, copy them to the designated folder. +- Run the database generator only if new files are detected. +- Launch the Flask web server. + +### Things to Consider: +- **Timing**: If there’s a delay for the USB drive to mount, you might want to add a short wait period or a retry loop when checking for the flash drive. +- **Combining Files**: You can combine the MP3-checking, copying, and database generation logic into a single Python script. Then, it can conditionally call the database generator only when new files are added, before starting the Flask server.