#!/bin/bash
# package.sh - Build Debian package for FeatherDDNS using a Debian container
#
# Usage: ./scripts/package.sh [version]
#
# Environment Variables:
#   CONTAINER_RUNTIME  Container runtime to use (default: podman)
#   VERSION            Override package version

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
IMAGE_NAME="featherddns-debian-builder"
CONTAINER_RUNTIME="${CONTAINER_RUNTIME:-podman}"

# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
BLUE='\033[0;34m'
NC='\033[0m'

info()    { echo -e "${BLUE}[INFO]${NC} $1"; }
success() { echo -e "${GREEN}[OK]${NC} $1"; }
error()   { echo -e "${RED}[ERROR]${NC} $1" >&2; }

# Get version from Makefile or argument
get_version() {
    grep "^VERSION" "$PROJECT_ROOT/Makefile" 2>/dev/null | head -1 | sed 's/.*:= *//' | tr -d ' '
}

VERSION="${1:-${VERSION:-$(get_version)}}"
VERSION="${VERSION:-1.0.0}"

info "Packaging FeatherDDNS version ${VERSION}"

# Check container runtime
if ! command -v "$CONTAINER_RUNTIME" >/dev/null 2>&1; then
    error "Container runtime '$CONTAINER_RUNTIME' not found"
    info "Install podman or docker, or set CONTAINER_RUNTIME"
    exit 1
fi

info "Using container runtime: $CONTAINER_RUNTIME"

# Check binary exists
if [[ ! -f "$PROJECT_ROOT/bin/FeatherDDNS" ]]; then
    error "Binary not found: bin/FeatherDDNS"
    info "Build first with: make build"
    exit 1
fi

success "Binary found: bin/FeatherDDNS"

# Build container image if needed
info "Checking for debian-builder image..."

NEED_BUILD=false
if ! $CONTAINER_RUNTIME image exists "$IMAGE_NAME" 2>/dev/null; then
    info "Image does not exist, building..."
    NEED_BUILD=true
else
    DOCKERFILE_TIME=$(stat -c %Y "$PROJECT_ROOT/Dockerfile.debian-builder" 2>/dev/null || echo 0)
    IMAGE_TIME=$($CONTAINER_RUNTIME image inspect "$IMAGE_NAME" --format '{{.Created}}' 2>/dev/null | xargs -I{} date -d {} +%s 2>/dev/null || echo 0)
    if [[ "$DOCKERFILE_TIME" -gt "$IMAGE_TIME" ]]; then
        info "Dockerfile is newer than image, rebuilding..."
        NEED_BUILD=true
    fi
fi

if [[ "$NEED_BUILD" == "true" ]]; then
    if ! $CONTAINER_RUNTIME build -t "$IMAGE_NAME" -f "$PROJECT_ROOT/Dockerfile.debian-builder" "$PROJECT_ROOT"; then
        error "Failed to build debian-builder image"
        exit 1
    fi
    success "debian-builder image built"
else
    success "debian-builder image is up-to-date"
fi

# Create dist directory
mkdir -p "$PROJECT_ROOT/dist"

# Determine SELinux mount option
MOUNT_OPT=""
if command -v getenforce >/dev/null 2>&1 && [[ "$(getenforce 2>/dev/null)" != "Disabled" ]]; then
    MOUNT_OPT=":Z"
    info "SELinux detected, using :Z mount flag"
fi

# Run packaging in container
info "Running packaging in container..."

if ! $CONTAINER_RUNTIME run --rm \
    -v "${PROJECT_ROOT}:/build${MOUNT_OPT}" \
    -e "VERSION=${VERSION}" \
    -w /build \
    "$IMAGE_NAME" \
    /bin/bash -c "./scripts/build-deb.sh"; then
    error "Container packaging failed"
    exit 1
fi

# Verify output
DEB_FILE=$(find "$PROJECT_ROOT/dist" -name "featherddns_*.deb" -type f 2>/dev/null | head -1)

if [[ -n "$DEB_FILE" ]]; then
    success "Package created: $DEB_FILE"
    ls -lh "$DEB_FILE"
else
    error "Package not found in dist/"
    ls -la "$PROJECT_ROOT/dist/" 2>/dev/null || true
    exit 1
fi

success "Packaging complete!"