#!/bin/sh
################################################################################
#      This file is part of OpenELEC - http://www.openelec.tv
#      Copyright (C) 2009-2016 Stephan Raue (stephan@openelec.tv)
#
#  OpenELEC 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 2 of the License, or
#  (at your option) any later version.
#
#  OpenELEC 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 OpenELEC.  If not, see <http://www.gnu.org/licenses/>.
################################################################################

if [ -z "$1" ]; then
  echo "Usage: $0 <branch-name>"
  exit 0
fi

KODI_DIR="kodi-$1.git"

git_clone() {
  # git_clone https://repo.url branch ./target_dir [githash]
  echo "[mkpkg] Checking out $1 ..."
  if [ ! -d "$3" ]; then
    git clone "$1" -b $2 "$3"
  else
    if [ -d "$3" ] ; then
      cd "$3"
      git checkout $2 >/dev/null 2>/dev/null
      git pull
      cd ..
    fi
  fi
  if [ ! -z "$4" ] ; then
    cd "$3"
    git fetch >/dev/null 2>/dev/null
    git branch -D $4 >/dev/null 2>/dev/null
    git checkout $4 >/dev/null 2>/dev/null
    git checkout -b ref-$4 >/dev/null 2>/dev/null
    cd ..
  fi
}

copy_sources() {
  # copy_sources source_dir package_name package_version
  if [ -d "$1" ] ; then
    echo "[mkpkg] Copying sources: $2-$3" ...
    rm -rf "$2-$3"
    cp -R "$1" "$2-$3"
    echo "$GIT_HASH" > "$2-$3/VERSION"

    echo "[mkpkg] Cleaning $2-$3 ..."
    rm -rf "$2-$3/.git"
  fi
}

package_sources() {
  # package_sources source_dir
  if [ -d "$1" ] ; then
    echo "[mkpkg] Packing $1.tar.xz ..."
    if [ ! -f "$1.tar.xz" ] ; then
      tar cvJf "$1.tar.xz" "$1"
    fi
    rm -rf "$1"
  fi
}

resolve_hash() {
  if [ -d "$1" ] ; then
    cd "$1"
    git rev-parse --short $2 2>/dev/null
  fi
}

copy_and_package() {
  REPO="$1"
  PKG_NAME="$2"
  GIT_HASH="$3"
  git_clone $REPO master $PKG_NAME.git $GIT_HASH
  RESOLVED_HASH=$(resolve_hash $PKG_NAME.git $GIT_HASH)
  if [ ! -e $PKG_NAME-$RESOLVED_HASH.tar.xz ] ; then
    copy_sources $PKG_NAME.git $PKG_NAME $RESOLVED_HASH
    package_sources $PKG_NAME-$RESOLVED_HASH
  else
    echo "[mkpkg] $PKG_NAME-$RESOLVED_HASH.tar.xz already exists ..."
  fi
}

if [ ! -d $KODI_DIR ] ; then
  echo "meh.. $KODI_DIR does not exist"
  exit 127
fi

# platform
REPO=$(cat $KODI_DIR/project/cmake/addons/depends/common/platform/platform.txt | awk '{print $2}')
GIT_HASH=$(cat $KODI_DIR/project/cmake/addons/depends/common/platform/platform.txt | awk '{print $3}')

copy_and_package $REPO platform $GIT_HASH

if [ -f ../../packages/mediacenter/platform/package.mk ] ; then
  # update package.mk
  RESOLVED_HASH=$(resolve_hash $PKG_NAME.git $GIT_HASH)
  sed -i "s|PKG_VERSION=.*|PKG_VERSION=\"$RESOLVED_HASH\"|g" ../../packages/mediacenter/platform/package.mk
fi

# kodi-platform
REPO=$(cat $KODI_DIR/project/cmake/addons/depends/common/kodi-platform/kodi-platform.txt | awk '{print $2}')
GIT_HASH=$(cat $KODI_DIR/project/cmake/addons/depends/common/kodi-platform/kodi-platform.txt | awk '{print $3}')

copy_and_package $REPO kodi-platform $GIT_HASH

if [ -f ../../packages/mediacenter/kodi-platform/package.mk ] ; then
  # update package.mk
  RESOLVED_HASH=$(resolve_hash $PKG_NAME.git $GIT_HASH)
  sed -i "s|PKG_VERSION=.*|PKG_VERSION=\"$RESOLVED_HASH\"|g" ../../packages/mediacenter/kodi-platform/package.mk
fi

# addons
for addontxt in $KODI_DIR/project/cmake/addons/bootstrap/repositories/*-addons.txt ; do
  ADDONS=$(cat $addontxt | awk '{print $1}')
  ADDONREPO=$(cat $addontxt | awk '{print $2}')
  GIT_HASH=$(cat $addontxt | awk '{print $3}')
  git_clone $ADDONREPO master $ADDONS.git $GIT_HASH
  for addon in $ADDONS.git/*.*/ ; do
    ADDON=$(basename $addon)
    REPO=$(cat $addon/$ADDON.txt | awk '{print $2}')
    GIT_HASH=$(cat $addon/$ADDON.txt | awk '{print $3}')

    if ! grep -q all $addon/platforms.txt && ! grep -q linux $addon/platforms.txt && ! grep -q ! $addon/platforms.txt; then
      continue
    fi

    if [ -f ../../packages/mediacenter/kodi-binary-addons/$ADDON/package.mk ] ; then
      copy_and_package $REPO $ADDON $GIT_HASH

      # update package.mk
      RESOLVED_HASH=$(resolve_hash $PKG_NAME.git $GIT_HASH)
      sed -i "s|PKG_VERSION=.*|PKG_VERSION=\"$RESOLVED_HASH\"|g" ../../packages/mediacenter/kodi-binary-addons/$ADDON/package.mk
    else
      echo "[mkpkg] Skipped $ADDON"
    fi
  done
done