#!/bin/bash

# Extract the Docker image version from the CircleCI config file
DOCKER_IMAGE=$(grep -oP '^\s*-?\s*image:\s*\K(tlaurion/heads-dev-env:[^\s]+)' .circleci/config.yml | head -n 1)

# Check if the Docker image was found
if [ -z "$DOCKER_IMAGE" ]; then
    echo "Error: Docker image not found in .circleci/config.yml"
    exit 1
fi

# Inform the user about the versioned CircleCI Docker image being used
echo "Using CircleCI Docker image: $DOCKER_IMAGE"

# Function to display usage information
usage() {
    echo "Usage: $0 [OPTIONS] -- [COMMAND]"
    echo "Options:"
    echo "  CPUS=N  Set the number of CPUs"
    echo "  V=1     Enable verbose mode"
    echo "Command:"
    echo "  The command to run inside the Docker container, e.g., make BOARD=BOARD_NAME"
}

# Function to kill GPG toolstack related processes using USB devices
kill_usb_processes() {
    echo "Killing any GPG toolstack related processes on host currently using USB devices..."
    sudo lsof /dev/bus/usb/00*/0* 2>/dev/null | awk 'NR>1 {print $2}' | xargs -r ps -p | grep -E 'scdaemon|pcscd' | awk '{print $1}' | xargs -r sudo kill -9
    if [ $? -ne 0 ]; then
        echo "Failed to kill GPG toolstack related processes using USB devices. Please run the following command manually:"
        echo "sudo lsof /dev/bus/usb/00*/0* | awk 'NR>1 {print \$2}' | xargs -r ps -p | grep -E 'scdaemon|pcscd' | awk '{print \$1}' | xargs -r sudo kill -9"
        exit 1
    fi
}

# Handle Ctrl-C (SIGINT) to exit gracefully
trap "echo 'Script interrupted. Exiting...'; exit 1" SIGINT

# Check if --help or -h is provided
for arg in "$@"; do
    if [[ "$arg" == "--help" || "$arg" == "-h" ]]; then
        usage
        exit 0
    fi
done

# Kill processes using USB devices
kill_usb_processes

# Inform the user about entering the Docker container
echo "----"
echo "Usage reminder: The minimal command is 'make BOARD=XYZ', where additional options, including 'V=1' or 'CPUS=N' are optional."
echo "For more advanced QEMU testing options, refer to targets/qemu.md and boards/qemu-*/*.config."
echo "----"
echo "Entering the Docker container. Type 'exit' to return to the host shell."

# Execute the docker run command with the provided parameters
docker run --device=/dev/bus/usb:/dev/bus/usb -e DISPLAY=$DISPLAY --network host --rm -ti -v $(pwd):$(pwd) -w $(pwd) $DOCKER_IMAGE -- "$@"