#!/bin/bash
# Script to verify RPM availability on CentOS 3.9 vault before building

set -e

CENTOS_VAULT="https://archive.kernel.org/centos-vault/3.9/os/i386/RedHat/RPMS"

# RPMs to verify (from build-docker-image.sh)
RPMS=(
    "basesystem-8.0-2.centos.0.noarch.rpm"
    "filesystem-2.2.1-3.centos.1.i386.rpm"
    "setup-2.5.27-1.noarch.rpm"
    "glibc-2.3.2-95.50.i386.rpm"
    "glibc-common-2.3.2-95.50.i386.rpm"
    "glibc-devel-2.3.2-95.50.i386.rpm"
    "glibc-headers-2.3.2-95.50.i386.rpm"
    "glibc-kernheaders-2.4-8.34.5.i386.rpm"
    "bash-2.05b-41.7.centos.0.i386.rpm"
    "coreutils-4.5.3-28.7.i386.rpm"
    "grep-2.5.1-24.6.i386.rpm"
    "sed-4.0.7-9.el3.i386.rpm"
    "gawk-3.1.1-9.i386.rpm"
    "findutils-4.1.7-9.1.i386.rpm"
    "util-linux-2.11y-31.23.i386.rpm"
    "compat-libstdc++-7.3-2.96.128.i386.rpm"
    "libstdc++-3.2.3-59.i386.rpm"
    "libstdc++-devel-3.2.3-59.i386.rpm"
    "gcc-3.2.3-59.i386.rpm"
    "gcc-c++-3.2.3-59.i386.rpm"
    "cpp-3.2.3-59.i386.rpm"
    "libgcc-3.2.3-59.i386.rpm"
    "make-3.79.1-17.1.i386.rpm"
    "binutils-2.14.90.0.4-42.i386.rpm"
    "libtool-1.4.3-6.i386.rpm"
    "libtool-libs-1.4.3-6.i386.rpm"
    "autoconf-2.57-3.noarch.rpm"
    "automake-1.6.3-5.noarch.rpm"
    "m4-1.4.1-13.i386.rpm"
    "zlib-1.1.4-10.EL3.i386.rpm"
    "zlib-devel-1.1.4-10.EL3.i386.rpm"
    "ncurses-5.3-9.4.i386.rpm"
    "ncurses-devel-5.3-9.4.i386.rpm"
    "readline-4.3-5.2.i386.rpm"
    "readline-devel-4.3-5.2.i386.rpm"
    "tar-1.13.25-15.RHEL3.i386.rpm"
    "gzip-1.3.3-14.rhel3.i386.rpm"
    "bzip2-1.0.2-11.EL3.4.i386.rpm"
    "bzip2-libs-1.0.2-11.EL3.4.i386.rpm"
    "patch-2.5.4-16.i386.rpm"
    "diffutils-2.8.1-8.i386.rpm"
    "which-2.14-7.i386.rpm"
    "info-4.5-3.el3.1.i386.rpm"
    "texinfo-4.5-3.el3.1.i386.rpm"
)

echo "======================================"
echo "CentOS 3.9 RPM Verification"
echo "======================================"
echo
echo "Checking ${#RPMS[@]} RPMs on CentOS vault..."
echo

FOUND=0
NOT_FOUND=0
ERRORS=""

for rpm in "${RPMS[@]}"; do
    printf "Checking %-50s ... " "$rpm"
    
    # Use HEAD request to check if file exists
    if curl --output /dev/null --silent --head --fail "${CENTOS_VAULT}/${rpm}"; then
        echo "✓ OK"
        FOUND=$((FOUND + 1))
    else
        echo "✗ NOT FOUND"
        NOT_FOUND=$((NOT_FOUND + 1))
        ERRORS="${ERRORS}\n  - $rpm"
    fi
done

echo
echo "======================================"
echo "Summary:"
echo "======================================"
echo "Found:     $FOUND"
echo "Not Found: $NOT_FOUND"
echo "Total:     ${#RPMS[@]}"
echo

if [ $NOT_FOUND -gt 0 ]; then
    echo "❌ Missing RPMs:$ERRORS"
    echo
    echo "Please update build-docker-image.sh with correct filenames."
    exit 1
else
    echo "✅ All RPMs are available!"
    echo
    echo "You can now run: ./build-docker-image.sh"
fi