#!/usr/bin/env bash

# Get version
if [ $# -eq 1 ]; then
  pkgver="$1"
else
  read -p "Version: " pkgver
fi
# Check version
oldver=$(grep "pkgver=" PKGBUILD | sed 's/pkgver="//;s/"//')
if [ "$pkgver" = "$oldver" ]; then
  echo >/dev/stderr "Error: same (old) version specified - update aborted"
  exit 1
fi

# Get variables from PKGBUILD
url=$(grep "source=" PKGBUILD | sed 's/source=("//;s/")//')
pkgname=$(grep "_pkgname=" PKGBUILD | sed 's/_pkgname="//;s/"//')
# Perform variable substitution
archive_url="${url//\$\{_pkgname\}/$pkgname}"
archive_url="${archive_url//\$\{pkgver\}/$pkgver}"

# Download archive
wget -O $pkgname.tar.gz "$archive_url"
# Calculate checksums
sha1sum=$(sha1sum $pkgname.tar.gz | awk '{print $1}')
sha256sum=$(sha256sum $pkgname.tar.gz | awk '{print $1}')
md5sum=$(md5sum $pkgname.tar.gz | awk '{print $1}')
# Yoink the archive - unnecessary anymore
rm -f $pkgname.tar.gz

# Update PKGBUILD with new values
sed -i -E "s/^pkgver=\"[^\"]+\"/pkgver=\"$pkgver\"/" PKGBUILD
sed -i -E "s/^sha1sums=\(\"[^\"]+\"\)/sha1sums=(\"$sha1sum\")/" PKGBUILD
sed -i -E "s/^sha256sums=\(\"[^\"]+\"\)/sha256sums=(\"$sha256sum\")/" PKGBUILD
sed -i -E "s/^md5sums=\(\"[^\"]+\"\)/md5sums=(\"$md5sum\")/" PKGBUILD

# Update .SRCINFO
makepkg --printsrcinfo > .SRCINFO

# In case of fire, git commit, git push, leave building
git add .
git commit -m "Updated $pkgname to $pkgver"
git remote add aur ssh://aur@aur.archlinux.org/pman-helper.git
git push origin main
git push aur main:master