#!/bin/bash
# ============================================================================
# DarkForge Linux — Phase 3, Chapter 8.8: XZ Utils
# ============================================================================
# Purpose:  Build and install XZ utils (LZMA compression).
#           Needed for extracting and compressing .tar.xz archives.
# Inputs:   /sources/xz-5.8.1.tar.gz (from Phase 0 download as xz-5.8.1)
# Outputs:  /usr/bin/xz, /usr/lib/liblzma.so
# Ref:      LFS 13.0 §8.8
# ============================================================================

set -euo pipefail
source /sources/toolchain-scripts/100-chroot-env.sh

PACKAGE="xz"
VERSION="5.8.1"

echo "=== Building ${PACKAGE}-${VERSION} (Phase 3) ==="

# The download may be named xz-5.8.1.tar.gz (from github releases)
# Check for the tarball
if [ -f "/sources/${PACKAGE}-${VERSION}.tar.gz" ]; then
    pkg_extract "${PACKAGE}-${VERSION}.tar.gz"
elif [ -f "/sources/${PACKAGE}-${VERSION}.tar.xz" ]; then
    pkg_extract "${PACKAGE}-${VERSION}.tar.xz"
else
    echo "FAIL: Could not find xz tarball"
    exit 1
fi

cd "${PACKAGE}-${VERSION}"

# Configure xz for the target system
./configure --prefix=/usr \
    --disable-static \
    --docdir=/usr/share/doc/xz-${VERSION}

# Build xz
make

# Run tests (optional but recommended)
make check || true

# Install xz
make install

# Verify installation
if [ -x /usr/bin/xz ]; then
    echo "PASS: xz binary installed"
else
    echo "FAIL: xz binary not found"
    exit 1
fi

if [ -f /usr/lib/liblzma.so ]; then
    echo "PASS: liblzma.so installed"
else
    echo "FAIL: liblzma.so not found"
    exit 1
fi

pkg_cleanup "${PACKAGE}-${VERSION}"
echo "=== ${PACKAGE}-${VERSION} complete ==="