#!/bin/bash

SCENARIO=$1
DEPENDENCIES=${2-install}

# Convert the aliases 'highest', 'lowest' and 'lock' to
# the corresponding composer command to run.
case $DEPENDENCIES in
  highest)
    DEPENDENCIES=update
    ;;
  lowest)
    DEPENDENCIES='update --prefer-lowest'
    ;;
  lock|default|"")
    DEPENDENCIES=install
    ;;
esac

original_name=scenarios
recommended_name=".scenarios.lock"

base="$original_name"
if [ -d "$recommended_name" ] ; then
  base="$recommended_name"
fi

# If scenario is not specified, install the lockfile at
# the root of the project.
dir="$base/${SCENARIO}"
if [ -z "$SCENARIO" ] || [ "$SCENARIO" == "default" ] ; then
  SCENARIO=default
  dir=.
fi

# Test to make sure that the selected scenario exists.
if [ ! -d "$dir" ] ; then
  echo "Requested scenario '${SCENARIO}' does not exist."
  exit 1
fi

echo
echo "::"
echo ":: Switch to ${SCENARIO} scenario"
echo "::"
echo

set -ex

composer -n validate --working-dir=$dir --no-check-all --ansi
composer -n --working-dir=$dir ${DEPENDENCIES} --prefer-dist --no-scripts

# If called from a CI context, print out some extra information about
# what we just installed.
if [[ -n "$CI" ]] ; then
  composer -n --working-dir=$dir info
fi