#!/bin/bash
#
# This script is used to make sure the archzfs repositories are up to date and
# in sync with my local repositories.
#
# This is necessary because I often forgot to push the changes to the archzfs
# host after updating my local repositories.
#
source "lib.sh"
source "conf.sh"

compute_local_repo_hash() {
    # $1: The repository to compute
    # Sets LOCAL_REPO_HASH
    msg2 "Computing local $1 repository hashes..."
    LFILES=$(cd $REPO_BASEPATH; sha256sum $1/{x86_64,i686}/*)
    if [[ $DEBUG == "1" ]]; then
        msg2 "Repository hash list:"
        echo "$LFILES"
    fi
    LOCAL_REPO_HASH=$(echo "$LFILES" | sha256sum | cut -f 1 -d' ')
    msg2 "Computed hash: $LOCAL_REPO_HASH"
}

compute_remote_repo_hash() {
    # $1: The repository to compute
    # Sets REMOTE_REPO_HASH
    msg2 "Computing remote $1 repository hashes..."
    RFILES=$(ssh $REMOTE_LOGIN "cd webapps/default; sha256sum $1/{x86_64,i686}/*")
    if [[ $DEBUG == "1" ]]; then
        msg2 "Repository hash list:"
        echo "$RFILES"
    fi
    REMOTE_REPO_HASH=$(echo "$RFILES" | sha256sum | cut -f 1 -d' ')
    msg2 "Computed hash: $REMOTE_REPO_HASH"
}

compare_repo() {
    # $1: The repo name to compare
    compute_local_repo_hash $1
    compute_remote_repo_hash $1
    if [[ $REMOTE_REPO_HASH != $LOCAL_REPO_HASH ]]; then
        return 1
    fi
    return 0
}

for REPO in 'demz-repo-archiso' 'demz-repo-core'; do
    msg "Checking ${REPO}..."
    compare_repo $REPO
    if [[ $? != 0 ]]; then
        error "The database is out of sync, sending notification..."
        send_email "$REPO is out of sync!" "$REPO is not in sync!"
    fi
    msg2 "$REPO is in sync"
done