#!/bin/bash

set -euo pipefail

basedir=$(dirname "$0")

for role in "$basedir"/roles/ceph-*; do
    rolename=$(basename "$role")
    if [[ $rolename == "ceph-common" ]]; then
        output="all.sample"
    elif [[ $rolename == "ceph-agent" ]]; then
        output="agent.sample"
    elif [[ $rolename == "ceph-fetch-keys" ]]; then
        continue
    else
        output="${rolename:5}s.sample"
    fi

    cat <<EOF > "$basedir"/group_vars/"$output"
---
# Variables here are applicable to all host groups NOT roles

# This sample file generated by $(basename "$0")

# Dummy variable to avoid error because ansible does not recognize the
# file as a good configuration file when no variable in it.
dummy:

EOF
    defaults="$role"/defaults/main.yml
    if [[ ! -f $defaults ]]; then
        continue
    fi

    sed '/^---/d; s/^\([A-Za-z[:space:]].\+\)/#\1/' \
        "$defaults" >> "$basedir"/group_vars/"$output"
    echo >> "$basedir"/group_vars/"$output"
done