#!/usr/bin/env bash
# Build the release artifacts and publish them under web/bin with the names the
# download page expects:
#
#   zagan-bet-client-<version>-<platform>-<arch>[.exe]
#   zagan-bet-server-<version>-<platform>-<arch>[.exe]
#   zagan-bet-gui-<version>-<platform>-<arch>[.exe]
#   zagan-bet-gui-<version>-<platform>-<arch>-install.sh
#   zagan-bet-gui-<version>-<platform>-<arch>-install.ps1
#
# Cargo always writes target/<triple>/<profile>/<bin>, so the rename happens
# here after each build. The version comes from Cargo.toml.
#
# The GUI uses the workspace's `gui-release` profile (small, stripped, LTO).
# The public git repository is the GPL source for these binaries, so publish
# from a clean tree (or set ALLOW_DIRTY=1 for a preview).
#
# Usage:
#   ./scripts/publish.sh
#   DEST=/srv/www/bin ./scripts/publish.sh
#   URL_BASE=https://staging.example/ ./scripts/publish.sh
set -euo pipefail

ROOT=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
cd "$ROOT"

VERSION=$(awk -F'"' '/^version = / { print $2; exit }' Cargo.toml)
if [ -z "${VERSION:-}" ]; then
  echo "could not read the version from Cargo.toml" >&2
  exit 1
fi

DEST=${DEST:-web/bin}
URL_BASE=${URL_BASE:-https://zagan.2137697.xyz}

if [ "${ALLOW_DIRTY:-0}" != "1" ] && [ -n "$(git status --porcelain)" ]; then
  echo "the working tree is dirty; commit the release first (or ALLOW_DIRTY=1)" >&2
  exit 1
fi

command -v python3 >/dev/null || {
  echo "python3 is required to render the installers" >&2
  exit 1
}

hash_of() {
  sha256sum "$1" | awk '{print $1}'
}

publish() {
  local triple=$1 kind=$2 platform=$3 arch=$4
  local ext=""
  if [ "$platform" = windows ]; then
    ext=".exe"
  fi

  local artifact="zagan-bet-$kind-$VERSION-$platform-$arch$ext"
  local source="target/$triple/release/$kind$ext"

  echo "==> $artifact"
  if [ "$kind" = client ]; then
    # rustls-only: never link the server's OpenSSL.
    cargo build --release --quiet --bin client --no-default-features --target "$triple"
  else
    cargo build --release --quiet --bin server --target "$triple"
  fi

  mkdir -p "$DEST/$kind"
  install -m 0755 "$source" "$DEST/$kind/$artifact"
  echo "    $DEST/$kind/$artifact ($(du -h "$DEST/$kind/$artifact" | cut -f1))"
}

publish_gui() {
  local triple=$1 platform=$2 arch=$3
  local ext=""
  if [ "$platform" = windows ]; then
    ext=".exe"
  fi

  local artifact="zagan-bet-gui-$VERSION-$platform-$arch$ext"
  local source="target/$triple/gui-release/zagan-bet-gui$ext"

  echo "==> $artifact"
  cargo build -p zagan-bet-gui --profile gui-release --quiet --target "$triple"

  mkdir -p "$DEST/gui"
  install -m 0755 "$source" "$DEST/gui/$artifact"
  local sha
  sha=$(hash_of "$DEST/gui/$artifact")
  echo "    $DEST/gui/$artifact ($(du -h "$DEST/gui/$artifact" | cut -f1))"

  if [ "$platform" = linux ]; then
    python3 scripts/render-installer.py \
      scripts/installers/linux.sh.in \
      "$DEST/gui/zagan-bet-gui-$VERSION-linux-$arch-install.sh" \
      "$VERSION" "$artifact" "$sha" "$URL_BASE/bin/gui/$artifact"
  elif [ "$platform" = windows ]; then
    python3 scripts/render-installer.py \
      scripts/installers/windows.ps1.in \
      "$DEST/gui/zagan-bet-gui-$VERSION-windows-$arch-install.ps1" \
      "$VERSION" "$artifact" "$sha" "$URL_BASE/bin/gui/$artifact"
  fi
}

publish_gui x86_64-unknown-linux-gnu linux x86_64
publish_gui x86_64-pc-windows-gnu windows x86_64

publish x86_64-unknown-linux-gnu client linux x86_64
publish i686-unknown-linux-gnu   client linux i686
publish x86_64-pc-windows-gnu    client windows x86_64
publish x86_64-unknown-linux-gnu server linux x86_64
publish x86_64-pc-windows-gnu    server windows x86_64

echo
echo "published $VERSION to $DEST"
echo "prune old versions from $DEST by hand; the page lists every file it finds."