#!/bin/sh

RELEASER_PATH=$(pwd)
PLUGIN_SLUG="woo-gutenberg-products-block"
GITHUB_ORG="woocommerce"
GITHUB_SLUG="woocommerce-gutenberg-products-block"
IS_PRE_RELEASE=false
BUILD_PATH="${HOME}/blocks-deployment"

# When it is set to true, the commands are just printed but not executed.
DRY_RUN_MODE=false

# When it is set to true, the commands that affect the local env are executed (e.g. git commit), while the commands that affect the remote env are not executed but just printed (e.g. git push)
SIMULATE_RELEASE_MODE=false

# Functions
# Check if string contains substring
is_substring() {
  case "$2" in
    *$1*)
      return 0
      ;;
    *)
      return 1
      ;;
  esac
}

# Output colorized strings
#
# Color codes:
# 0 - black
# 1 - red
# 2 - green
# 3 - yellow
# 4 - blue
# 5 - magenta
# 6 - cian
# 7 - white
output() {
  echo "$(tput setaf "$1")$2$(tput sgr0)"
}

# Output colorized list
output_list() {
  echo "$(tput setaf "$1") • $2:$(tput sgr0) \"$3\""
}

simulate() {
  if $2 = true ; then
	eval "$1"
  else
	output 3 "DRY RUN: $1"
  fi
}


run_command() {
  if $DRY_RUN_MODE = true; then
	output 3 "DRY RUN: $1"
  elif $SIMULATE_RELEASE_MODE = true; then
		simulate "$1" $2
  else
	eval "$1"
  fi
}

# Release script
echo
output 4 "BLOCKS->WordPress.org RELEASE SCRIPT"
output 4 "===================================="
echo
printf "This script prepares a GitHub tag/release for WordPress.org SVN."
echo
echo
echo "Before proceeding:"
echo " • Ensure you have already created the release on GitHub. You can use '$ npm run deploy'."
echo
output 3 "Do you want to continue? [y/N]: "
read -r PROCEED
echo

if [ "$(echo "${PROCEED:-n}" | tr "[:upper:]" "[:lower:]")" != "y" ]; then
  output 1 "Release cancelled!"
  exit 1
fi
echo
output 3 "Please enter the version number to tag, for example, 1.0.0:"
read -r VERSION
echo

# Check if is a pre-release.
if is_substring "-" "${VERSION}"; then
    IS_PRE_RELEASE=true
	output 2 "Detected pre-release version!"
fi

# Set deploy variables
SVN_REPO="http://plugins.svn.wordpress.org/${PLUGIN_SLUG}/"
GIT_REPO="https://github.com/${GITHUB_ORG}/${GITHUB_SLUG}.git"
SVN_PATH="${BUILD_PATH}/${PLUGIN_SLUG}-svn"
GIT_PATH="${BUILD_PATH}/${PLUGIN_SLUG}-git"
BRANCH="v$VERSION"

echo
echo "-------------------------------------------"
echo
echo "Review all data before proceeding:"
echo
output_list 3 "Version to release" "${VERSION}"
output_list 3 "GIT tag to release" "${BRANCH}"
output_list 3 "GIT repository" "${GIT_REPO}"
output_list 3 "wp.org repository" "${SVN_REPO}"
echo
output 3 "Do you want to continue? [y/N]: "
read -r PROCEED
echo

if [ "$(echo "${PROCEED:-n}" | tr "[:upper:]" "[:lower:]")" != "y" ]; then
  output 1 "Release cancelled!"
  exit 1
fi

# Create build directory if does not exists
if [ ! -d "$BUILD_PATH" ]; then
  mkdir -p "$BUILD_PATH"
fi

# Delete old GIT directory
rm -rf "$GIT_PATH"

# Clone GIT repository
output 2 "Cloning GIT repository..."
run_command "git clone '$GIT_REPO' '$GIT_PATH' --branch '$BRANCH' --single-branch || exit '$?'" true

if [ ! -d "$GIT_PATH/build" ]; then
	output 3 "Build directory not found in tag. Aborting."
	exit 1
fi

if [ ! -d "$GIT_PATH/vendor" ]; then
	output 3 "Vendor directory not found in tag. Aborting."
	exit 1
fi

# Checkout SVN repository if not exists
if [ ! -d "$SVN_PATH" ]; then
	output 2 "No SVN directory found, fetching files..."
	# Checkout project without any file
	run_command "svn co --depth=files '$SVN_REPO' '$SVN_PATH'" true

	cd "$SVN_PATH" || exit

	# Fetch main directories
	run_command "svn up assets branches trunk" true

	# Fetch tags directories without content
	run_command "svn up --set-depth=immediates tags" true
	# To fetch content for a tag, use:
	# svn up --set-depth=infinity tags/<tag_number>
else
	# Update SVN
	cd "$SVN_PATH" || exit
	output 2 "Updating SVN..."
	run_command "svn up" true
fi

# Copy GIT directory to trunk
output 2 "Copying project files to SVN trunk..."
run_command "sh '${RELEASER_PATH}/bin/copy-plugin-files.sh' '$GIT_PATH' '$SVN_PATH/trunk'" true
cd "$SVN_PATH"

# Update stable tag on trunk/readme.txt
if [ $IS_PRE_RELEASE = false ]; then
	output 2 "Updating \"Stable tag\" to ${VERSION} on trunk/readme.txt..."
	run_command "perl -i -pe's/Stable tag: .*/Stable tag: ${VERSION}/' trunk/readme.txt" true
fi

# Do the remove all deleted files
run_command "svn st | grep -v '^.[ \t]*\..*' | grep '^\!' | awk '{print $2'@'}' | xargs svn rm" true

# Do the add all not know files
run_command "svn st | grep -v '^.[ \t]*\..*' | grep '^?' | awk '{print $2'@'}' | xargs svn add" true

# Copy trunk to tag/$VERSION
if [ ! -d "tags/${VERSION}" ]; then
	output 2 "Creating SVN tags/${VERSION}..."
	run_command "svn 'cp trunk tags/'${VERSION}''" true
fi

# Remove the GIT directory
output 2 "Removing GIT directory..."
run_command "rm -rf '$GIT_PATH'" true

# SVN commit messsage
output 2 "Ready to commit into WordPress.org Plugin's Directory!"
echo
echo "-------------------------------------------"
echo
output 3 "Run the following command to commit to SVN:"
echo "cd ${SVN_PATH} && svn ci -m \"Release ${VERSION}, see readme.txt for changelog.\""