#!/usr/bin/env bash
# Assemble the smartbotic-automation .deb tree and run dpkg-deb.
# Runs INSIDE the Docker build container after `cmake --build`.
set -euo pipefail

PROJECT_DIR="${PROJECT_DIR:-/build}"
OUTPUT_DIR="${OUTPUT_DIR:-/packages}"
VERSION="${BUILD_VERSION:-$(cat "$PROJECT_DIR/VERSION")}"
REVISION="${BUILD_DEB_REVISION:-1}"
ARCH="amd64"
NAME="smartbotic-automation"
PKG_VERSION="${VERSION}-${REVISION}"

PKG_ROOT="$(mktemp -d)"
trap "rm -rf $PKG_ROOT" EXIT

# Directory layout inside the .deb
install -d "$PKG_ROOT/DEBIAN"
install -d "$PKG_ROOT/usr/bin"
install -d "$PKG_ROOT/usr/share/$NAME/webui"
install -d "$PKG_ROOT/usr/share/$NAME/nodes"
install -d "$PKG_ROOT/usr/share/doc/$NAME"
install -d "$PKG_ROOT/etc/$NAME"
install -d "$PKG_ROOT/usr/lib/systemd/system"
install -d "$PKG_ROOT/var/lib/$NAME"
install -d "$PKG_ROOT/var/log/$NAME"

# Binaries (stripped)
install -m 0755 "$PROJECT_DIR/build/smartbotic-webserver"     "$PKG_ROOT/usr/bin/"
install -m 0755 "$PROJECT_DIR/build/smartbotic-runner"        "$PKG_ROOT/usr/bin/"
install -m 0755 "$PROJECT_DIR/build/smartbotic-migrate-nodes" "$PKG_ROOT/usr/bin/"
strip --strip-all "$PKG_ROOT/usr/bin/smartbotic-webserver" \
                  "$PKG_ROOT/usr/bin/smartbotic-runner" \
                  "$PKG_ROOT/usr/bin/smartbotic-migrate-nodes" || true

# WebUI bundle (normalize permissions: dirs 0755, files 0644)
cp -r "$PROJECT_DIR/webui/dist/." "$PKG_ROOT/usr/share/$NAME/webui/"
find "$PKG_ROOT/usr/share/$NAME/webui" -type d -exec chmod 0755 {} +
find "$PKG_ROOT/usr/share/$NAME/webui" -type f -exec chmod 0644 {} +

# Default workflow nodes (normalize permissions: dirs 0755, files 0644)
cp -r "$PROJECT_DIR/nodes/." "$PKG_ROOT/usr/share/$NAME/nodes/"
find "$PKG_ROOT/usr/share/$NAME/nodes" -type d -exec chmod 0755 {} +
find "$PKG_ROOT/usr/share/$NAME/nodes" -type f -exec chmod 0644 {} +

# Default configs (will become conffiles via DEBIAN/conffiles)
install -m 0644 "$PROJECT_DIR/packaging/deb/config/webserver.json" "$PKG_ROOT/etc/$NAME/webserver.json"
install -m 0644 "$PROJECT_DIR/packaging/deb/config/runner.json"    "$PKG_ROOT/etc/$NAME/runner.json"
install -m 0644 "$PROJECT_DIR/packaging/deb/config/env"            "$PKG_ROOT/etc/$NAME/env"

# Systemd units (modern path: usr/lib, not lib)
install -m 0644 "$PROJECT_DIR/packaging/deb/systemd/$NAME-webserver.service" \
                "$PKG_ROOT/usr/lib/systemd/system/"
install -m 0644 "$PROJECT_DIR/packaging/deb/systemd/$NAME-runner.service" \
                "$PKG_ROOT/usr/lib/systemd/system/"

# Minimal copyright file (required by lintian)
cat > "$PKG_ROOT/usr/share/doc/$NAME/copyright" <<EOF
Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: SmartBotic Automation
Upstream-Contact: Ferenc Szontagh <ferenc.szontagh@smartbotics.ai>
Source: https://smartbotics.ai

Files: *
Copyright: $(date +%Y) SmartBotics Kft.
License: proprietary
 Proprietary software. All rights reserved.
 Unauthorized copying, distribution or modification is prohibited.
EOF

# Minimal changelog (required by lintian for non-native packages)
printf "smartbotic-automation (%s) trixie; urgency=medium\n\n  * Release %s\n\n -- Ferenc Szontagh <ferenc.szontagh@smartbotics.ai>  %s\n" \
    "${PKG_VERSION}" "${VERSION}" "$(date -R)" \
    | gzip -9 -n > "$PKG_ROOT/usr/share/doc/$NAME/changelog.Debian.gz"

# Maintainer scripts
for script in preinst postinst prerm postrm; do
    install -m 0755 "$PROJECT_DIR/packaging/deb/scripts/$script" "$PKG_ROOT/DEBIAN/$script"
done

# Conffiles
cat > "$PKG_ROOT/DEBIAN/conffiles" <<EOF
/etc/$NAME/webserver.json
/etc/$NAME/runner.json
/etc/$NAME/env
EOF

# Render control file from template
INSTALLED_SIZE=$(du -sk "$PKG_ROOT" --exclude=DEBIAN | cut -f1)
sed -e "s/{{VERSION}}/${PKG_VERSION}/g" \
    -e "s/{{INSTALLED_SIZE}}/${INSTALLED_SIZE}/g" \
    "$PROJECT_DIR/packaging/deb/templates/control.smartbotic-automation" \
    > "$PKG_ROOT/DEBIAN/control"

# Build the .deb
mkdir -p "$OUTPUT_DIR"
DEB_FILE="$OUTPUT_DIR/${NAME}_${PKG_VERSION}_${ARCH}.deb"
dpkg-deb --build --root-owner-group "$PKG_ROOT" "$DEB_FILE"
echo "Built: $DEB_FILE"
ls -lh "$DEB_FILE"