#!/usr/bin/env bash
# Build .deb package for i2p-python.
# Runs inside the Debian build container — never on bare metal.
#
# Strategy: install into a virtualenv under /opt/i2p-python, then package
# the entire venv + config files as a .deb using fpm -s dir.
set -euo pipefail

VERSION=$(python3 -c "
import tomllib
with open('pyproject.toml', 'rb') as f:
    print(tomllib.load(f)['project']['version'])
")
echo "=== Building i2p-python ${VERSION} .deb ==="

# Create staging root
STAGING=/tmp/staging
mkdir -p "${STAGING}/opt/i2p-python"
mkdir -p "${STAGING}/usr/bin"
mkdir -p "${STAGING}/etc/i2p-python"
mkdir -p "${STAGING}/var/lib/i2p-python"

# Install into isolated virtualenv at /opt/i2p-python
python3 -m venv "${STAGING}/opt/i2p-python"
"${STAGING}/opt/i2p-python/bin/pip" install --quiet .

# Create wrapper scripts in /usr/bin
for cmd in i2p-router i2p-sam i2p-tunnel; do
    cat > "${STAGING}/usr/bin/${cmd}" << 'WRAPPER'
#!/bin/sh
exec /opt/i2p-python/bin/CMD "$@"
WRAPPER
    sed -i "s/CMD/${cmd}/" "${STAGING}/usr/bin/${cmd}"
    chmod 755 "${STAGING}/usr/bin/${cmd}"
done

# Copy config files
cp packaging/linux/ufw-i2p "${STAGING}/etc/i2p-python/"

# Build .deb with fpm from the staged directory
fpm \
  -s dir \
  -t deb \
  -C "${STAGING}" \
  -n i2p-python \
  -v "${VERSION}" \
  --architecture amd64 \
  --description "I2P anonymous overlay network router — Python implementation" \
  --url "https://geti2p.net/" \
  --license MIT \
  --maintainer "bimo.studio" \
  --category net \
  --depends python3 \
  --deb-systemd packaging/linux/i2p-router.service \
  --after-install build/linux-deb/postinst.sh \
  --deb-no-default-config-files \
  -p "/out/i2p-python_${VERSION}_amd64.deb" \
  opt/ usr/bin/ etc/ var/

echo "=== .deb built ==="
ls -lh /out/*.deb