#!/usr/bin/env bash
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=darktable_common.sh
source "$SCRIPT_DIR/darktable_common.sh"

check_dependency darktable
check_dependency ssh openssh-client
check_dependency notify-send libnotify-bin

load_config
validate_config

export DISPLAY="${DISPLAY:-:0}"

log() {
    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*"
}

if pgrep -x darktable &>/dev/null; then
    notify-send "Darktable" \
        "Darktable laeuft bereits. Bitte zuerst schliessen." -u critical
    exit 1
fi

ACTIVE_MARKER_SET=false

cleanup() {
    if [ "$ACTIVE_MARKER_SET" = true ]; then
        ssh -o ConnectTimeout=5 -o BatchMode=yes \
            -p "$SERVER_SSH_PORT" "$SERVER_USER@$SERVER_IP" \
            "rm -f '$SERVER_DB_DIR/darktable.active'" 2>/dev/null || true
    fi
}
trap cleanup EXIT INT TERM

if ! server_reachable; then
    if ! ask_user "Darktable Sync" \
        "Server nicht erreichbar.\nDarktable ohne Synchronisation starten?"; then
        log "Abbruch durch Benutzer – Server nicht erreichbar."
        exit 0
    fi
    log "Starte Darktable ohne Sync..."
else
    log "Pre-Sync..."
    "$SYNC_BIN"

    MARKER="$(hostname) seit $(date '+%Y-%m-%d %H:%M:%S')"
    ssh -o ConnectTimeout=5 -o BatchMode=yes \
        -p "$SERVER_SSH_PORT" "$SERVER_USER@$SERVER_IP" \
        "echo '$MARKER' > '$SERVER_DB_DIR/darktable.active'" || true
    ACTIVE_MARKER_SET=true
fi

log "Starte Darktable..."
"$DARKTABLE_BIN" "$@" || true
log "Darktable beendet."

if [ "$ACTIVE_MARKER_SET" = true ]; then
    ssh -o ConnectTimeout=5 -o BatchMode=yes \
        -p "$SERVER_SSH_PORT" "$SERVER_USER@$SERVER_IP" \
        "rm -f '$SERVER_DB_DIR/darktable.active'" 2>/dev/null || true
    ACTIVE_MARKER_SET=false
fi

if server_reachable; then
    log "Post-Sync..."
    "$SYNC_BIN"
else
    touch "$CONFIG_DIR/sync_pending"
    notify-send "Darktable Sync" \
        "Server nicht erreichbar – Sync ausstehend." -t 5000
fi