#!/bin/bash
set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# Load configs & helpers
source "$SCRIPT_DIR/../Master.conf"
source "$SCRIPT_DIR/../common.sh"

# ----------------------------- Input -----------------------------
DIRECTORY="$1"
[[ -z "$DIRECTORY" ]] && { log "Usage: $0 <directory-to-sync> [--dry-run] [VAR=value ...]"; exit 1; }

shift
parse_args "$@"

# ----------------------------- Profile -----------------------------
PROFILE_NAME=$(basename "$DIRECTORY" | tr '[:upper:]' '[:lower:]')

MAX_RSYNC_PROCS=${PROFILE_MAX_PROCS[$PROFILE_NAME]:-$MAX_RSYNC_PROCS}
BW_LIMIT=${PROFILE_BW_LIMIT[$PROFILE_NAME]:-$BW_LIMIT}
CRITICAL_CONTAINER_NAMES=(${PROFILE_CRITICAL_CONTAINER_NAMES[$PROFILE_NAME]})
DELAYED_CONTAINERS=(${PROFILE_DELAYED_CONTAINERS[$PROFILE_NAME]})
CONTAINER_DELAY=${PROFILE_CONTAINER_DELAY[$PROFILE_NAME]:-$CONTAINER_DELAY}
RETRY_COUNT=${PROFILE_RETRY_COUNT[$PROFILE_NAME]:-$RETRY_COUNT}
SLEEP=${PROFILE_SLEEP[$PROFILE_NAME]:-$SLEEP}
EXCLUDE_DIRS=(${PROFILE_EXCLUDE_DIRS[$PROFILE_NAME]:-${EXCLUDE_DIRS[@]}})

log "Detected profile: $PROFILE_NAME"
log "Settings: MAX_RSYNC_PROCS=$MAX_RSYNC_PROCS, BW_LIMIT=$BW_LIMIT, CONTAINERS=${CRITICAL_CONTAINER_NAMES[*]}, EXCLUDES=${EXCLUDE_DIRS[*]}, DRY_RUN=$DRY_RUN"

# ----------------------------- Main Sync -----------------------------
main() {
    log "[$LOCAL_SERVER_NAME] Starting sync: $DIRECTORY → $REMOTE_SERVER:$DIRECTORY"

    [[ $(check_server_online) ]] || { log "Remote $REMOTE_SERVER_NAME unreachable. Exiting."; exit 1; }

    wait_for_rsync
    stop_containers

    # Build rsync command
    get_rsync_opts
    for ex in "${EXCLUDE_DIRS[@]}"; do RSYNC_OPTS+=(--exclude="$ex"); done
    [[ "$DRY_RUN" == true ]] && RSYNC_OPTS+=("--dry-run")

    for attempt in $(seq 1 "$RETRY_COUNT"); do
        log "Starting rsync attempt $attempt/$RETRY_COUNT..."
        if rsync "${RSYNC_OPTS[@]}" -e "ssh -i \"$SSH_KEY\" -T -o Compression=no -o IPQoS=throughput" \
            "$DIRECTORY" "root@${REMOTE_SERVER}:$DIRECTORY"; then
            log "Rsync completed successfully."
            break
        else
            log "Rsync attempt $attempt failed."
            [[ "$attempt" -lt "$RETRY_COUNT" ]] && { log "Retrying in $SLEEP seconds..."; sleep "$SLEEP"; } || { log "All rsync attempts failed."; start_containers; exit 1; }
        fi
    done

    start_containers
    log "[$LOCAL_SERVER_NAME] Sync complete."
}

main