#!/usr/bin/env bash
#
# generate_version
#
# Make a Version.h file to accompany CUSTOM_VERSION_FILE
#

DIR=${1:-"Marlin"}

# MRCC3=$( git merge-base HEAD upstream/bugfix-2.0.x 2>/dev/null )
# MRCC2=$( git merge-base HEAD upstream/bugfix-1.1.x 2>/dev/null )
# MRCC1=$( git merge-base HEAD upstream/1.1.x 2>/dev/null )

# BASE='?'
# if [[ -n $MRCC3 && $MRCC3 != $MRCC2 ]]; then
#   BASE=bugfix-2.0.x
# elif [[ -n $MRCC2 ]]; then
#   BASE=bugfix-1.1.x
# elif [[ -n $MRCC1 ]]; then
#   BASE=1.1.x
# fi

BUILDATE=$(date '+%s')
DISTDATE=$(date '+%Y-%m-%d %H:%M')

BRANCH=$(git -C "${DIR}" symbolic-ref -q --short HEAD)
VERSION=$(git -C "${DIR}" describe --tags --first-parent 2>/dev/null)

[ -z "${BRANCH}" ] && BRANCH=$(echo "${TRAVIS_BRANCH}")
[ -z "${VERSION}" ] && VERSION=$(git -C "${DIR}" describe --tags --first-parent --always 2>/dev/null)

SHORT_BUILD_VERSION=$(echo "${BRANCH}")
DETAILED_BUILD_VERSION=$(echo "${BRANCH}-${VERSION}")

# Gets some misc options from their defaults
DEFAULT_MACHINE_UUID=$(awk -F'"' \
  '/#define DEFAULT_MACHINE_UUID/{ print $2 }' < "${DIR}/Version.h")
MACHINE_NAME=$(awk -F'"' \
  '/#define MACHINE_NAME/{ print $2 }' < "${DIR}/Version.h")
PROTOCOL_VERSION=$(awk -F'"' \
  '/#define PROTOCOL_VERSION/{ print $2 }' < "${DIR}/Version.h")
SOURCE_CODE_URL=$(awk -F'"' \
  '/#define SOURCE_CODE_URL/{ print $2 }' < "${DIR}/Version.h")
WEBSITE_URL=$(awk -F'"' \
  '/#define WEBSITE_URL/{ print $2 }' < "${DIR}/Version.h")

cat > "${DIR}/Version.h" <<EOF
/**
 * Marlin 3D Printer Firmware
 * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
#pragma once

/**
 * THIS FILE IS AUTOMATICALLY GENERATED DO NOT MANUALLY EDIT IT.
 * IT DOES NOT GET COMMITTED TO THE REPOSITORY.
 *
 * Branch: ${BRANCH}
 * Version: ${VERSION}
 */

/**
  * Marlin release version identifier
  */
#ifndef SHORT_BUILD_VERSION
  #define SHORT_BUILD_VERSION "${SHORT_BUILD_VERSION}"
#endif

/**
  * Verbose version identifier which should contain a reference to the location
  * from where the binary was downloaded or the source code was compiled.
  */
#ifndef DETAILED_BUILD_VERSION
  #define DETAILED_BUILD_VERSION "${DETAILED_BUILD_VERSION}"
#endif

/**
  * The STRING_DISTRIBUTION_DATE represents when the binary file was built,
  * here we define this default string as the date where the latest release
  * version was tagged.
  */
#ifndef STRING_DISTRIBUTION_DATE
  #define STRING_DISTRIBUTION_DATE "${DISTDATE}"
#endif

/**
  * The protocol for communication to the host. Protocol indicates communication
  * standards such as the use of ASCII, "echo:" and "error:" line prefixes, etc.
  * (Other behaviors are given by the firmware version and capabilities report.)
  */
#ifndef PROTOCOL_VERSION
  #define PROTOCOL_VERSION "${PROTOCOL_VERSION}"
#endif

/**
  * Defines a generic printer name to be output to the LCD after booting Marlin.
  */
#ifndef MACHINE_NAME
  #define MACHINE_NAME "${MACHINE_NAME}"
#endif

/**
  * The SOURCE_CODE_URL is the location where users will find the Marlin Source
  * Code which is installed on the device. In most cases —unless the manufacturer
  * has a distinct Github fork— the Source Code URL should just be the main
  * Marlin repository.
  */
#ifndef SOURCE_CODE_URL
  #define SOURCE_CODE_URL "${SOURCE_CODE_URL}"
#endif

/**
  * Default generic printer UUID.
  */
#ifndef DEFAULT_MACHINE_UUID
  #define DEFAULT_MACHINE_UUID "${DEFAULT_MACHINE_UUID}"
#endif

/**
  * The WEBSITE_URL is the location where users can get more information such as
  * documentation about a specific Marlin release.
  */
#ifndef WEBSITE_URL
  #define WEBSITE_URL "${WEBSITE_URL}"
#endif

EOF
