#!/bin/bash
# Build the ActiveBlue AI Debian package
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
VERSION=$(cat "$SCRIPT_DIR/VERSION" 2>/dev/null || echo "0.1.0")
PKG_NAME="activeblue-ai"
PKG_DIR="$SCRIPT_DIR/build/${PKG_NAME}_${VERSION}"
DIST_DIR="$SCRIPT_DIR/dist"

echo "Building $PKG_NAME v$VERSION"

# Clean previous build
rm -rf "$PKG_DIR"
mkdir -p "$PKG_DIR"

# Copy Debian control files
cp -r "$SCRIPT_DIR/debian/DEBIAN" "$PKG_DIR/DEBIAN"

# Update version in control file
sed -i "s/^Version:.*/Version: $VERSION/" "$PKG_DIR/DEBIAN/control"

# Make maintainer scripts executable
chmod 755 "$PKG_DIR/DEBIAN/postinst" \
           "$PKG_DIR/DEBIAN/prerm" \
           "$PKG_DIR/DEBIAN/postrm"

# Install application files to /usr/lib/activeblue-ai
APP_DIR="$PKG_DIR/usr/lib/activeblue-ai"
mkdir -p "$APP_DIR"
cp -r "$SCRIPT_DIR/agent_service" "$APP_DIR/"
cp "$SCRIPT_DIR/requirements.txt" "$APP_DIR/"
cp "$SCRIPT_DIR/VERSION" "$APP_DIR/"

# Remove Python cache
find "$APP_DIR" -name '__pycache__' -type d -exec rm -rf {} + 2>/dev/null || true
find "$APP_DIR" -name '*.pyc' -delete 2>/dev/null || true

# Install systemd unit
mkdir -p "$PKG_DIR/lib/systemd/system"
cp "$SCRIPT_DIR/debian/lib/systemd/system/activeblue-ai.service" \
   "$PKG_DIR/lib/systemd/system/"

# Install CLI tool
mkdir -p "$PKG_DIR/usr/bin"
cp "$SCRIPT_DIR/debian/usr/bin/activeblue-ai" "$PKG_DIR/usr/bin/"
chmod 755 "$PKG_DIR/usr/bin/activeblue-ai"

# Install default config
mkdir -p "$PKG_DIR/etc/activeblue-ai"
cp "$SCRIPT_DIR/.env.example" "$PKG_DIR/etc/activeblue-ai/.env.example"

# Install documentation
mkdir -p "$PKG_DIR/usr/share/doc/activeblue-ai"
cp "$SCRIPT_DIR/README.md" "$PKG_DIR/usr/share/doc/activeblue-ai/"

# Calculate installed size (kB)
SIZE=$(du -sk "$PKG_DIR" | cut -f1)
sed -i "s/^Installed-Size:.*/Installed-Size: $SIZE/" "$PKG_DIR/DEBIAN/control" 2>/dev/null || \
    echo "Installed-Size: $SIZE" >> "$PKG_DIR/DEBIAN/control"

# Build the .deb
mkdir -p "$DIST_DIR"
DEB_FILE="$DIST_DIR/${PKG_NAME}_${VERSION}_all.deb"
dpkg-deb --build --root-owner-group "$PKG_DIR" "$DEB_FILE"

echo ""
echo "Package built: $DEB_FILE"
echo ""
echo "Install with:"
echo "  sudo dpkg -i $DEB_FILE"
echo "  sudo apt-get install -f  # if there are dependency issues"