#!/bin/sh
set -eu

: "${FAKE_DOCKER_LOG:?}"
: "${FAKE_DB_STATE:?}"
printf '%s\n' "$*" >> "$FAKE_DOCKER_LOG"

if [ "${1:-}" = compose ]; then
  shift
  args=$*
  case "$args" in
    *' version'*) exit 0 ;;
    *' ps -q postgres'*) printf 'fake-postgres\n'; exit 0 ;;
    *' ps -q control-proxy'*) printf 'fake-control-proxy\n'; exit 0 ;;
    *' exec '*product_e*)
      if [ "$(cat "$FAKE_DB_STATE")" = mismatch ]; then
        printf 'FATAL: password authentication failed for user product_e\n' >&2
        exit 2
      fi
      if [ "$(cat "$FAKE_DB_STATE")" = reset-once ]; then
        printf 'FATAL: password authentication failed for user product_e\n' >&2
        exit 2
      fi
      if [ "$(cat "$FAKE_DB_STATE")" = wrong-role ]; then
        printf 'product_s\n'
        exit 0
      fi
      printf 'product_e\n'; exit 0 ;;
    *' exec '*product_s*)
      if [ "$(cat "$FAKE_DB_STATE")" = wrong-role ]; then
        printf 'product_e\n'
        exit 0
      fi
      if [ "$(cat "$FAKE_DB_STATE")" = s-mismatch ]; then
        printf 'FATAL: password authentication failed for user product_s\n' >&2
        exit 2
      fi
      printf 'product_s\n'; exit 0 ;;
    *) exit 0 ;;
  esac
fi

case "${1:-}" in
  network|pull|image) exit 0 ;;
  save)
    output=''
    previous=''
    for argument do
      if [ "$previous" = -o ]; then output=$argument; fi
      previous=$argument
    done
    [ -n "$output" ] && : > "$output"
    exit 0
    ;;
  inspect)
    format=${3:-}
    case "$format" in
      *State.Health.Status*) printf 'healthy\n' ;;
      *var/lib/postgresql/data*) printf 'fake-e-postgres\n' ;;
      *) printf '\n' ;;
    esac
    exit 0
    ;;
  volume)
    case "${2:-}" in
      inspect)
        case "${4:-}" in
          *com.docker.compose.project*) printf 'overcooked-e\n' ;;
          *com.docker.compose.volume*) printf 'e-postgres\n' ;;
        esac
        exit 0
        ;;
      rm)
        printf 'ok\n' > "$FAKE_DB_STATE"
        exit 0
        ;;
    esac
    ;;
esac

exit 0