#!/usr/bin/env bash

# Usage:
#
#   run-tests.sh [--scenario|-s <scenario>] container
#
#     Start container and start a shell session with helper commands
#     for accessing the container.
#     A short command documentation is printed at the start of the session.
#     The container is destroyed after exiting the shell.
#     An existing container is destroyed before starting.
#
#     Supported arguments:
#
#       --destroy|-d to destroy
#
#         When `run-tests.sh container` from inside an existing shell session,
#         the current container is updated without restarting by switching
#         its NixOS configuration.
#         Use this arg to destroy and restart the container instead.
#
#       --no-destroy|-n
#
#         By default, all commands destroy an existing container before starting and,
#         when appropriate, before exiting.
#         This ensures that containers start with no leftover filesystem state from
#         previous runs and that containers don't consume system resources after use.
#         This args disables auto-destructing containers.
#
#
#   run-tests.sh container --run c systemctl status bitcoind
#
#     Run a command in the shell session environmentand exit.
#     Destroy the container afterwards.
#     All arguments following `--run` are used as a command.
#     Supports argument '--no-destroy|-n' (see above for an explanation).
#
#     Example: Start shell inside container
#     run-tests.sh container --run c
#
#
#   run-tests.sh [--scenario|-s <scenario>] container --command|-c
#
#     Provide a custom extra-container command.
#
#     Example:
#       run-tests.sh container --command create -s
#       Create and start a container without a shell.
#
#
#   All extra args are passed to extra-container (unless --command is used):
#   run-tests.sh container --build-args --builders 'ssh://worker - - 8'

set -euo pipefail

# These vars are set by ../run-tests.sh
: "${container:=}"
: "${scriptDir:=}"

containerCommand=shell

while [[ $# -gt 0 ]]; do
    case $1 in
        --command|-c)
            shift
            containerCommand=$1
            shift
            ;;
        *)
            break
    esac
done

. "${BASH_SOURCE[0]%/*}"/extra-container-check-version.sh

exec "$container"/bin/container "$containerCommand" "$@"