#!/bin/bash

# Script that validates that the pillar/secret/*/*.sls files contain the
# appropriate header, and that none other pillar files contain this header or
# any secrets

set -Ceu

HEADER_REGEX='^(#!yaml\|gpg|#!gpg\|yaml|#!jinja\|yaml\|gpg)$'
HEADER_EMPTY='^(# empty)$'
STATUS=0

SECRETS_SLS=( $(find pillar/secrets -name '*.sls' 2> /dev/null) )
if [[ -n "${SECRETS_SLS[0]}" ]];  then
    for secret_sls in "${SECRETS_SLS[@]}"; do
        HEADER_LINE="$(head -n 1 "$secret_sls")"
	if [[ ! "$HEADER_LINE" =~ $HEADER_REGEX && ! ( "$HEADER_LINE" =~ $HEADER_EMPTY && "$(wc -l < "$secret_sls")" == 1 ) ]]; then
            echo "The first line in $secret_sls is not matching \"$HEADER_REGEX\""
            STATUS=1
        fi
    done
fi

# shellcheck disable=SC2044 # looping over find output is reasonable here, since additional if-logic is required
for sls in $(find pillar/ -not -path 'pillar/secrets/*' -name '*.sls'); do
    if grep -Eq "$HEADER_REGEX" "$sls"; then
        echo "$sls matches \"$HEADER_REGEX\", please remove such lines from non-secret pillar files"
        STATUS=1
    fi
    if grep -q "BEGIN GPG MESSAGE" "$sls"; then
        echo "$sls contains secrets. Please move them to pillar/secrets/${sls#*/}"
        STATUS=1
    fi
done

exit "$STATUS"