#!/bin/bash

set -euo pipefail

declare -A os_family=( [RedHat]=RedHat [CentOS]=RedHat [Fedora]=RedHat
                       [AlmaLinux]=RedHat [Rocky]=RedHat [OracleLinux]=RedHat )

for file in vars/*.yml; do
    if [ "$file" = vars/main.yml ]; then
        continue
    fi
    # get platform and optional version
    if [[ "$file" =~ vars/([^_]+)_([0-9]+).yml$ ]]; then
        platform="${BASH_REMATCH[1]}"
        version="${BASH_REMATCH[2]}"
        packages_file=".ostree/packages-runtime-${platform}-${version}.txt"
    elif [[ "$file" =~ vars/([^_.]+).yml$ ]]; then
        platform="${BASH_REMATCH[1]}"
        packages_file=".ostree/packages-runtime-${platform}.txt"
    else
        echo ERROR: cannot parse "$file"
        exit 1
    fi
    # only os_family == RedHat is supported
    if [ "${os_family[$platform]:-}" = RedHat ]; then
        : # proceed - fall through
    else
        echo platform "$platform" not supported for ostree
        continue
    fi
    # parse packages from file
    printit=0
    while read -r item pkg; do
        if [[ "$item" =~ ^__sshd_packages: ]]; then
            printit=1
        elif [ "$printit" = 1 ]; then
            if [ "$item" = "-" ] && [ -n "$pkg" ]; then
                echo "$pkg"
            else
                break
            fi
        fi
    done < "$file" | sort > "$packages_file"
    # remove empty files
    if [ ! -s "$packages_file" ]; then
        rm -f "$packages_file"
    fi
done