#!/bin/bash

set -eou pipefail

if [[ -z "${1:-}" ]]; then

  echo 'Runs ehrQL using the production Docker container with the local code'

  echo 'checkout mounted in and the environment loaded from `environ.env`.'

  echo

  echo 'It also mounts the current directory under `/workspace` so it can be'

  echo 'run in the checkout of a study repo to mimic production behaviour.'

  echo

  echo 'Remember to DELETE any extracted data as soon as possible after use.'

  echo

  echo 'By default it runs the container detached and tails the log file. Use'

  echo 'the `-i` flag to run interactively.'

  echo

  echo 'Additional arguments are passed to ehrQL as normal e.g.'

  echo

  echo '    cd ~/some_study_repo'

  echo '    ../ehrql/scripts/run-debug.sh generate-dataset analysis/dataset_definition.py --output test.csv'

  echo

  exit 1

fi

if [[ "$1" == "-i" ]]; then

  detached=false

  shift

else

  detached=true

fi

script_dir="$( unset CDPATH && cd "$(dirname "${BASH_SOURCE[0]}" )" && pwd )"

ehrql_dir="$( unset CDPATH && cd "$script_dir/../" && pwd )"

env_file="$script_dir/environ.env"

container_name="$USER-ehrql-test-$(date -u +%Y%m%d-%H%M%S)"

if [[ ! -f "$env_file" ]]; then

  echo "Expecting an env file at: $env_file"

  echo

  echo "This should contain appropriate configuration values e.g."

  echo

  echo "    OPENSAFELY_BACKEND=tpp"

  echo "    TEMP_DATABASE_NAME=OPENCoronaTempTables"

  echo "    DATABASE_URL=__Your personal DB creds__"

  echo

  echo "** NOTE **"

  echo "When exercising the system for debugging/development purposes you MUST"

  echo "use your personal database credentials and NOT the system credentials."

  exit 1

fi

if $detached; then

  docker run \

    --detach \

    --name "$container_name" \

    --env-file "$env_file" \

    --volume "$ehrql_dir:/app" \

    --volume "$PWD:/workspace" \

    --user "$UID" \

    ghcr.io/opensafely-core/ehrql:v1 \

    "$@" \

    > /dev/null

  echo "Running container in background and tailing logs. Clean up with:"

  echo

  echo "    docker rm -f $container_name"

  echo

  echo "Remember to DELETE any extracted data as soon as possible after use."

  echo

  exec docker logs -f "$container_name"

else

  exec docker run \

    --rm \

    --interactive \

    --tty \

    --name "$container_name" \

    --env-file "$env_file" \

    --volume "$ehrql_dir:/app" \

    --volume "$PWD:/workspace" \

    --user "$UID" \

    ghcr.io/opensafely-core/ehrql:v1 \

    "$@"

fi