#!/bin/bash

# Make sure SVN credentials and project slug are set
if [[ -z "$SVN_USERNAME" ]] && [[ $1 != "preview" ]]; then
	echo "Set the SVN_USERNAME secret"
	exit 1
fi

if [[ -z "$SVN_PASSWORD" ]] && [[ $1 != "preview" ]]; then
	echo "Set the SVN_PASSWORD secret"
	exit 1
fi

# These themes either:
# 	are not (and not expected to be) deployed to wporg
# 	have been deployed to wporg, however they are not expected to be updated
# Note that all classic themes (those without a theme.json file) are ALSO ignored
# Get the directory of the script
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
IGNORE_FILE="$SCRIPT_DIR/.theme-utils/.dotorg-ignore"

# Initialize an empty array for themes to ignore
THEMES_TO_IGNORE=()

# Read themes to ignore from .dotorg-ignore file, ignoring comments
if [[ -f "$IGNORE_FILE" ]]; then
    while IFS= read -r line || [[ -n "$line" ]]; do
        [[ "$line" =~ ^#.*$ ]] && continue
        THEMES_TO_IGNORE+=("$line")
    done < "$IGNORE_FILE"
else
    echo ".dotorg-ignore file not found, proceeding without ignoring any themes."
fi
rm -rf ./deploy

# Do things for all of the themes
for THEME_SLUG in */ ; do

	# Remove slashes from the theme slug
	THEME_SLUG=$(echo $THEME_SLUG | tr -d '/')

	# Skip any classic themes (assuming that none of our classic themes use a theme.json file)
	if ! test -f "./${THEME_SLUG}/theme.json"; then
		# echo "Ignoring classic theme ${THEME_SLUG}. Moving on."
		continue;
	fi

	# Skip any themes that are in the ignore list
	if [[ " ${THEMES_TO_IGNORE[*]} " == *" ${THEME_SLUG//\//} "* ]]; then
		# echo "Ignoring theme ${THEME_SLUG} from list. Moving on."
		continue;
	fi

	if test -f "./${THEME_SLUG}/style.css"; then

		THEME_VERSION=$(cat ./${THEME_SLUG}/style.css \
		  | grep Version \
		  | head -1 \
		  | awk -F: '{ print $2 }' \
		  | sed 's/[",]//g' \
		  | sed 's/-wpcom//g' \
		  | tr -d '[[:space:]]')

		DIRECTORY_URL="https://wordpress.org/themes/${THEME_SLUG}/"
		SVN_URL="https://themes.svn.wordpress.org/${THEME_SLUG}/"
		SVN_DIR="$PWD/deploy/${THEME_SLUG}"

		response=$(curl -s -o /dev/null -w "%{http_code}" "$DIRECTORY_URL")
		if [ "$response" != "200" ]; then
			# echo "Theme with slug ${THEME_SLUG} has not been approved to the themes directory. Moving on."
			continue;
		fi

		response=$(curl -s -o /dev/null -w "%{http_code}" "$SVN_URL")
		if [ "$response" != "200" ]; then
			# echo "No theme with slug ${THEME_SLUG} to be updated. Moving on."
			continue;
		fi

		response=$(curl -s -o /dev/null -w "%{http_code}" "$SVN_URL/$THEME_VERSION/")
		if [ "$response" == "200" ]; then
			# echo "${THEME_SLUG} version '$THEME_VERSION' already deployed.  Moving on."
			continue;
		fi

		# printf "\n\nAttempting to deploy theme ${THEME_SLUG} version ${THEME_VERSION}\n"

		svn checkout --depth immediates "$SVN_URL" "$SVN_DIR" --no-auth-cache --non-interactive > /dev/null

		if [ ! -d "$SVN_DIR" ]; then
			continue;
		fi

		if [ -d "$SVN_DIR/$THEME_VERSION" ]; then
			rm -rf $SVN_DIR
			echo "${THEME_SLUG} version '$THEME_VERSION' already deployed.  Moving on."
			continue;
		fi

		directories=($SVN_DIR/*)
		last_directory=${directories[${#directories[@]}-1]}
		last_version="${last_directory##*/}"

		# Check if last_version is a later version than THEME_VERSION
		theme_version_without_decimal=$(echo $THEME_VERSION | tr -d '.')
		last_version_without_decimal=$(echo $last_version | tr -d '.')
		if (( last_version_without_decimal > theme_version_without_decimal )); then
			echo "${THEME_SLUG} version '${last_version}' is newer than '${THEME_VERSION}', so it must not need updating.  Moving on."
			continue;
		fi

		echo "➤ Upgrading ${THEME_SLUG} from ${last_version} to $THEME_VERSION"

	 	if [[ $1 == "preview" ]]; then
			continue;
		fi	

		echo "➤ Copying previous version of theme ('${last_directory}') '${THEME_SLUG}' to svn repository... "
		svn update --set-depth infinity ${last_directory} --non-interactive 
		svn cp ${last_directory} $SVN_DIR/$THEME_VERSION

		echo "➤ Copying theme '${THEME_SLUG}' version '${THEME_VERSION}' to svn repository... "
		
		# Ensure the destination directory exists
		mkdir -p $SVN_DIR/$THEME_VERSION

		# Perform the rsync operation
		rsync -rc --delete --include=theme.json --exclude-from $IGNORE_FILE ./$THEME_SLUG/ $SVN_DIR/$THEME_VERSION

		# Check the exit status of rsync
		if [[ $? -ne 0 ]]; then
		    echo "rsync failed."
		    exit 1
		fi

		# Find files marked for deletion and remove them
		files_to_delete=$(svn status $SVN_DIR/$THEME_VERSION | grep "^\!" | sed 's/^\! *//g')
		if [[ -n "$files_to_delete" ]]; then
		    echo "$files_to_delete" | xargs svn rm
		fi

		# Add new and modified files
		svn add $SVN_DIR/$THEME_VERSION --force --depth infinity -q > /dev/null

		echo "➤ Committing files..."
		svn commit $SVN_DIR -m "Update to version ${THEME_VERSION} from GitHub" --no-auth-cache --non-interactive --username ${SVN_USERNAME} --password ${SVN_PASSWORD} 2>&1 | grep 'svn: E'
		if [[ $? -eq 0 ]]; then
		    echo 'Commit failed.'
		    exit 1
		fi
	fi
done