#!/usr/bin/env bash
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
##@Version           :  202210141608-git
# @@Author           :  Jason Hempstead
# @@Contact          :  git-admin@casjaysdev.com
# @@License          :  LICENSE.md
# @@ReadME           :  buildx --help
# @@Copyright        :  Copyright: (c) 2022 Jason Hempstead, Casjays Developments
# @@Created          :  Friday, Oct 14, 2022 16:08 EDT
# @@File             :  buildx
# @@Description      :  Docker buildx wrapper
# @@Changelog        :  New script
# @@TODO             :  Refactor code
# @@Other            :
# @@Resource         :
# @@Terminal App     :  no
# @@sudo/root        :  no
# @@Template         :  bash/system
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# Set bash options
[ -n "$DEBUG" ] && set -x
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Set functions
__image_exists() { docker ps -a 2>&1 | grep -q "$1" || return 1; }
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__buildx() {
  local exitStatus=0 reg_tag="${1:-$TAG_NAME}" dir="${directory:-.}"
  [ -n "$platforms" ] && build_platforms="--platform ${platforms/ /,}"
  #[ -d "$PWD/.git" ] && git pull -q && echo "Updating git repo"
  # Initialize
  echo "Setting target platform to $platforms"
  __image_exists "$qemu_imagename" || { echo "Initializing $qemu_imagename" && docker run -d --name "$qemu_imagename" --privileged multiarch/qemu-user-static --reset -p yes &>/dev/null; }                                                        #|| { echo "Failed to Initialize" && exit 1; }
  __image_exists "$binfmt_imagename" || { echo "Initializing $binfmt_imagename" && docker run -d --name "$binfmt_imagename" --privileged tonistiigi/binfmt --install all &>/dev/null; }                                                            #|| { echo "Failed to Initialize" && exit 1; }
  __image_exists "$buildername" || { echo "Setting the buildername to $buildername" && docker buildx create --driver docker-container --driver-opt network=host --driver-opt image=moby/buildkit:master --name "$buildername" --use &>/dev/null; } #|| { echo "Failed to Initialize" && exit 1; }
  docker buildx use "$buildername" &>/dev/null                                                                                                                                                                                                     #|| { echo "Failed to Initialize" && exit 1; }
  docker buildx inspect --bootstrap &>/dev/null                                                                                                                                                                                                    #|| { echo "Failed to Initialize" && exit 1; }

  # Build
  echo "Building $reg_tag"
  eval docker buildx build --rm --pull \
    --push --no-cache $build_platforms \
    --progress auto --output=type=registry \
    $reg_tag "$dir" || exitStatus=1
  [ "$exitStatus" -eq 0 ] || echo "Failed to build $reg_tag"

  # Cleanup
  __image_exists "$buildername" && docker rm -f "$buildername" &>/dev/null
  __image_exists "$qemu_imagename" && docker rm -f "$qemu_imagename" &>/dev/null
  __image_exists "$binfmt_imagename" && docker rm -f "$binfmt_imagename" &>/dev/null
  return $exitStatus
}
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[ -f "/root/.docker/config.json" ] || { echo "/root/.docker/config.json Does not exist did you mount it?" && exit 1; }
[ -d "/tmp/build" ] && cd "/tmp/build" || { echo "/tmp/build Does not exist did you mount your project?" && exit 1; }
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# Set additional variables
[ -f "$PWD/.env.sh" ] && . "$PWD/.env.sh"
[ -f "$1" ] && docker_file="$1" && shift 1 || docker_file="${FILE:-}"
[ -d "$1" ] && [ -f "$1/Dockerfile" ] && docker_file="$1/Dockerfile" && shift 1 || docker_file="${FILE:-}"
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
TAG_NAME="${1:-$TAGS}"
REGISTRY="${REGISTRY:-}"
ORG="${ORG:-casjaysdevdocker}"
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
exitCode=0
buildername="mybuilder"
qemu_imagename="buildx-qemu"
binfmt_imagename="buildx-binfmt"
platforms="${PLATFORMS:-linux/amd64,linux/arm64}"
docker_files="$(find "/tmp/build" -name 'Dockerfile*' 2>/dev/null | sort -u | grep '^' || false)"
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export DOCKER_CLI_EXPERIMENTAL="enabled"
echo "$TAG_NAME" | grep -q ':' || TAG_NAME="$TAG_NAME:latest"
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
[ -n "$docker_file" ] || [ -n "$docker_files" ] || { echo "USAGE: buildx [dir] [tagname]" && exit 1; }
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
clear
if [ -z "$(pgrep -x dockerd)" ]; then
  echo "Starting dockerd"
  start-docker.sh &>/dev/null &
  sleep 10
fi
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Main application
if [ -n "$docker_file" ]; then
  [ -n "$TAG_NAME" ] || { echo "USAGE: buildx [dir] [tagname]" && exit 1; }
  directory="$(dirname "$docker_file")"
  [ -n "$REGISTRY" ] && tag_name="$REGISTRY/$TAG_NAME" || tag_name="$TAG_NAME"
  tag_name="$(echo "$REGISTRY/$TAG_NAME" | tr '[:upper:]' '[:lower:]')"
  cd "$directory" && __buildx "$tag_name" || exitCode+="$((exitCode + 1))"
elif [ -n "$docker_files" ]; then
  for file in $docker_files; do
    directory="$(dirname "$file")"
    image_name="$(echo $ORG/$(basename "$directory") | tr '[:upper:]' '[:lower:]')"
    [ -n "$REGISTRY" ] && tag_name="$REGISTRY/$image_name:latest" || tag_name="$image_name:latest"
    cd "$directory" && __buildx "$tag_name" || exitCode+="$((exitCode + 1))"
  done
else
  echo "Can not find a Dockerfile in /tmp/build"
  exitCode=10
fi
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
exit $exitCode
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# end