#!/usr/bin/env bash

# This script bumps version numbers in the following files:
#	postlockdown.php - Bumps the version number in the top comment block.
#	classes/class-postlockdown.php - Bumps the version number constant.
#	readme.txt - Bumps the Stable tag.
#	package.json - Bumps the version field.
#
# Usage: bin/bump-version <major|minor|patch> - Increments the relevant version part by one.
#
# Usage 2: bin/bump-version <version-from> <version-to>
# 	e.g: bin/bump-version 1.1.1 2.0

if [ "$1" == "" ]; then
	echo "No 'from' version set. Exiting"
	exit 1
fi

if [ "$1" == "major" ] || [ "$1" == "minor" ] || [ "$1" == "patch" ]; then
	currentversion=$(grep -Po '(?<="version": ")[^"]*' package.json)

	IFS='.' read -a versionparts <<< "$currentversion"

	major=${versionparts[0]}
	minor=${versionparts[1]}
	patch=${versionparts[2]}

	case "$1" in
		"major")
			major=$((major + 1))
			;;
		"minor")
			minor=$((minor + 1))
			;;
		"patch")
			patch=$((patch + 1))
			;;
	esac
	toversion="$major.$minor.$patch"
else
	if [ "$2" == "" ]; then
		echo "No 'to' version set. Exiting"
		exit 1
	fi
	currentversion="$1"
	toversion="$2"
fi

if ! [[ "$toversion" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
	echo "'to' version doesn't look like a valid semver version tag (e.g: 1.2.3). Exiting"
	exit 1
fi

read -r -p "Bump version number from $currentversion to $toversion? [Y/n]: " confirm

case "$confirm" in
	[Nn][Oo]|[Nn])
		echo "Exiting"
		exit
		;;
esac

function bump() {
	echo -n "Updating $1..."
	sed -i "s/$2/$3/1w bumpchangelog.tmp" $1
	if [ -s bumpchangelog.tmp ]; then
		echo "Done"
	else
		echo "Nothing to change"
	fi
	rm -f bumpchangelog.tmp
}

bump post-lockdown.php "* Version: $1" "* Version: $2"
bump classes/class-postlockdown.php "const VERSION = '$1';" "const VERSION = '$2';"
bump package.json "\"version\": \"$1\"" "\"version\": \"$2\""
bump readme.txt "Stable tag: $1" "Stable tag: $2"