#!/bin/sh

set -e

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <postinst> `abort-remove'
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package

APP_NAME="_APP_NAME_"
CLI="${APP_NAME}"
APP_USER=$(${CLI} config:get APP_USER)
APP_GROUP=$(${CLI} config:get APP_GROUP)

# source debconf library
. /usr/share/debconf/confmodule

case "$1" in

  configure)
    # create attachments folder
    attachments_path=$(${CLI} config:get ATTACHMENTS_STORAGE_PATH || echo "/var/db/${APP_NAME}/files")
    mkdir -p "${attachments_path}"
    chown ${APP_USER}.${APP_GROUP} "${attachments_path}"
    ${CLI} config:set ATTACHMENTS_STORAGE_PATH="${attachments_path}"

    # set web concurrency
    web_concurrency=$(${CLI} config:get WEB_CONCURRENCY || echo "2")
    ${CLI} config:set WEB_CONCURRENCY=${web_concurrency}

    # set web timeout
    web_timeout=$(${CLI} config:get WEB_TIMEOUT || echo "15")
    ${CLI} config:set WEB_TIMEOUT=${web_timeout}

    # set SECRET_TOKEN env variable
    secret_token=$(${CLI} config:get SECRET_TOKEN || ${CLI} run rake -s secret | tail -1)
    ${CLI} config:set SECRET_TOKEN="$secret_token"

    # migrate
    rake_commands="db:migrate db:seed"
    ${CLI} run rake ${rake_commands} || true

    sys_api_key=$(${CLI} config:get SYS_API_KEY)

    # set various settings
    db_get ${APP_NAME}/server/hostname
    if [ -z "$RET" ]; then web_hostname=$(hostname -f); else web_hostname="$RET"; fi
    db_get ${APP_NAME}/server/ssl
    if [ "$RET" = "true" ]; then web_protocol="https"; else web_protocol="http"; fi

    ${CLI} run rake setting:set[host_name=${web_hostname},protocol=${web_protocol},sys_api_enabled=1,sys_api_key=${sys_api_key}] 1>/dev/null

    # scale
    ${CLI} scale web=1 worker=1 || true

    # let the admin reboot when he's ready
  ;;

  abort-upgrade|abort-remove|abort-deconfigure)
    exit 0
  ;;

  *)
    echo "postinst called with unknown argument \`$1'" >&2
    exit 1
  ;;
esac