# This file is executed during cpack time.
# Possible commands are
# cpack -G External -D DEB_UPLOAD_PPA=ppa:xxxxx/xxxxxx
# cpack -G External -D DEB_SOURCEPKG=true
# cpack -G External -D DEB_BUILD=true

find_program(CPACK_DEBIAN_DEBUILD debuild)
if(NOT CPACK_DEBIAN_DEBUILD)
  message(FATAL_ERROR "debuild not found, required for cpack -G External -D DEB_UPLOAD_PPA=true" )
endif()

if(DEB_UPLOAD_PPA)
  find_program(CPACK_DEBIAN_DPUT dput)
  if(NOT CPACK_DEBIAN_DPUT)
    message(FATAL_ERROR "dput not found, required for cpack -G External -D DEB_UPLOAD_PPA=true" )
  endif()
endif()

find_program(CPACK_DEBIAN_DEBCHANGE debchange)
if(NOT CPACK_DEBIAN_DEBCHANGE)
  message(FATAL_ERROR "debchange not found, required for cpack -G External -D DEB_UPLOAD_PPA=true" )
endif()

find_program(CPACK_DEBIAN_MARKDOWN markdown)
if(NOT CPACK_DEBIAN_MARKDOWN)
  message(FATAL_ERROR "markdown not found, required for cpack -G External -D DEB_UPLOAD_PPA=true")
endif()

find_program(CPACK_DEBIAN_DOCBOOK_TO_MAN docbook-to-man)
if(NOT CPACK_DEBIAN_DOCBOOK_TO_MAN)
  message(FATAL_ERROR "docbook-to-man not found, required for cpack -G External -D DEB_UPLOAD_PPA=true")
endif()

# PR branches have no access to the pgp key. Don't sign.
find_program(CPACK_DEBIAN_GPG gpg)
if(CPACK_DEBIAN_GPG)
    execute_process(COMMAND ${CPACK_DEBIAN_GPG} --fingerprint "${CPACK_PACKAGE_CONTACT}"
         RESULT_VARIABLE CPACK_DEBIAN_GPG_RET)
endif()
if(NOT CPACK_DEBIAN_GPG_RET EQUAL "0")
    message(WARNING "No secret key found for \"${CPACK_PACKAGE_CONTACT}\", skip signing" )
    SET(CPACK_DEBIAN_DEBUILD_NOSIGN "--no-sign")
endif()

# hack to advance the version from the legacy version like this:
# dpkg --compare-versions 2.4.0~alpha~pre1~git7859  lt 2.4.0~alpha2~5463~gf2da9e619d && echo true
# and from changing to --first-parent
# dpkg --compare-versions 2.4.0~alpha1~6372~g0244af2e04-1~impish lt 2.4.0~alpha2~805~g4f13bc1d5d-1~impish && echo true
# dpkg --compare-versions 2.4.0~alpha2~5463~gf2da9e619d lt 2.4.0 && echo true
if(DEB_UPLOAD_PPA MATCHES "nightlies")
  string(REPLACE "2.4~alpha~" "2.4.0~alpha2~" CPACK_DEBIAN_PACKAGE_VERSION "${CPACK_DEBIAN_PACKAGE_VERSION}")
endif()

message(NOTICE "Creating mixxx_${CPACK_DEBIAN_PACKAGE_VERSION}.orig.tar.gz")
execute_process(
  COMMAND tar -czf "mixxx_${CPACK_DEBIAN_PACKAGE_VERSION}.orig.tar.gz" ${CPACK_PACKAGE_FILE_NAME}
  WORKING_DIRECTORY ${CPACK_TOPLEVEL_DIRECTORY}
)

# Save Git info from original working tree to allow building without git
# uses GIT_BRANCH GIT_DESCRIBE GIT_COMMIT_DATE GIT_COMMIT_YEAR GIT_COMMIT_COUNT GIT_DIRTY
configure_file(
    ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/src/gitinfo.h.in
    ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/src/gitinfo.h.in
    @ONLY)

message( NOTICE "Creating debian folder" )
file(COPY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/packaging/debian
    DESTINATION ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME})
file(REMOVE ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/debian/control.in)

execute_process(
  COMMAND ${CPACK_DEBIAN_MARKDOWN} ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/CHANGELOG.md
  OUTPUT_FILE NEWS.html
  WORKING_DIRECTORY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/debian
)

execute_process(
  COMMAND ${CPACK_DEBIAN_DOCBOOK_TO_MAN} debian/mixxx.sgml
  OUTPUT_FILE mixxx.1
  WORKING_DIRECTORY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}
)

file(COPY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/res/linux/mixxx-usb-uaccess.rules
    DESTINATION ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/debian)
file(RENAME
    ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/debian/mixxx-usb-uaccess.rules
    ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/debian/mixxx.mixxx-usb-uaccess.udev)

if(DEB_BUILD)
  execute_process(
    COMMAND lsb_release --short --codename
    OUTPUT_VARIABLE BUILD_MACHINE_RELEASE
    OUTPUT_STRIP_TRAILING_WHITESPACE
  )
endif()

foreach(RELEASE ${CPACK_DEBIAN_DISTRIBUTION_RELEASES})

  if (RELEASE STREQUAL "bionic")
    set(CPACK_DEBIAN_PACKAGE_BUILD_DEPENDS_EXTRA "libmp4v2-dev,")
  else()
    set(CPACK_DEBIAN_PACKAGE_BUILD_DEPENDS_EXTRA "libavformat-dev,")
  endif()

  configure_file(${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/packaging/debian/control.in
      ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/debian/control
      @ONLY)

  file(COPY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/packaging/debian/changelog
      DESTINATION ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}/debian)
  execute_process(COMMAND ${CPACK_DEBIAN_DEBCHANGE} -v "${CPACK_DEBIAN_PACKAGE_VERSION}-${CPACK_DEBIAN_PACKAGE_RELEASE}~${RELEASE}" -M "Build of ${CPACK_DEBIAN_PACKAGE_VERSION}"
      WORKING_DIRECTORY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME})
  execute_process(COMMAND ${CPACK_DEBIAN_DEBCHANGE} -r -D ${RELEASE} -M "Build of ${CPACK_DEBIAN_PACKAGE_VERSION}"
      WORKING_DIRECTORY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME})

  if (DEB_UPLOAD_PPA OR DEB_SOURCEPKG)
    execute_process(COMMAND ${CPACK_DEBIAN_DEBUILD} -S -sa -d ${CPACK_DEBIAN_DEBUILD_NOSIGN}
         WORKING_DIRECTORY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME}
         RESULT_VARIABLE CPACK_DEBIAN_DEBUILD_RET)
    if(NOT CPACK_DEBIAN_DEBUILD_RET EQUAL "0")
      message(FATAL_ERROR "${CPACK_DEBIAN_DEBUILD} returned exit code ${CPACK_DEBIAN_DEBUILD_RET}")
    endif()
  endif()
  if (BUILD_MACHINE_RELEASE STREQUAL RELEASE AND DEB_BUILD)
    execute_process(COMMAND ${CPACK_DEBIAN_DEBUILD} -b ${CPACK_DEBIAN_DEBUILD_NOSIGN}
        WORKING_DIRECTORY ${CPACK_TOPLEVEL_DIRECTORY}/${CPACK_PACKAGE_FILE_NAME})
  endif()
  if(DEB_UPLOAD_PPA)
    execute_process(COMMAND ${CPACK_DEBIAN_DPUT} ${DEB_UPLOAD_PPA} "mixxx_${CPACK_DEBIAN_PACKAGE_VERSION}-${CPACK_DEBIAN_PACKAGE_RELEASE}~${RELEASE}_source.changes"
         WORKING_DIRECTORY ${CPACK_TOPLEVEL_DIRECTORY})
  endif()

endforeach(RELEASE ${CPACK_DEBIAN_DISTRIBUTION_RELEASES})

if(DEB_SOURCEPKG OR DEB_BUILD)
  file(GLOB ARTIFACTS
      "${CPACK_TOPLEVEL_DIRECTORY}/mixxx_${CPACK_DEBIAN_PACKAGE_VERSION}-${CPACK_DEBIAN_PACKAGE_RELEASE}*"
      "${CPACK_TOPLEVEL_DIRECTORY}/mixxx-dbgsym_${CPACK_DEBIAN_PACKAGE_VERSION}-${CPACK_DEBIAN_PACKAGE_RELEASE}*")
  file(COPY ${ARTIFACTS}
      DESTINATION ${CPACK_PACKAGE_DIRECTORY})
endif()