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

BASE_URL="${1:-https://wegwichtel.de/api}"
SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
ROOT_DIR="$(cd -- "$SCRIPT_DIR/.." && pwd)"
GPX_FILE="$ROOT_DIR/examples/presentation-route.gpx"
JSON_FILE="$ROOT_DIR/examples/presentation-route.json"

for command in curl python3; do
  command -v "$command" >/dev/null 2>&1 || {
    echo "Fehler: $command wird benötigt." >&2
    exit 1
  }
done

read_json() {
  python3 - "$JSON_FILE" "$1" <<'PY'
import json
import sys
with open(sys.argv[1], encoding='utf-8') as handle:
    data = json.load(handle)
value = data
for part in sys.argv[2].split('.'):
    value = value[int(part)] if part.isdigit() else value[part]
print(value)
PY
}

NAME="$(read_json name)"
DESCRIPTION="$(read_json description)"

echo "Lege Beispielstrecke über $BASE_URL an …"
ROUTE_RESPONSE="$(curl --fail --silent --show-error \
  -X POST "$BASE_URL/routes" \
  -F "name=$NAME" \
  -F "description=$DESCRIPTION" \
  -F "gpx=@$GPX_FILE;type=application/gpx+xml")"

ROUTE_ID="$(python3 -c 'import json,sys; print(json.load(sys.stdin)["id"])' <<<"$ROUTE_RESPONSE")"

rollback() {
  echo "Upload fehlgeschlagen. Entferne die unvollständige Beispielstrecke $ROUTE_ID …" >&2
  curl --fail --silent --show-error -X DELETE "$BASE_URL/routes/$ROUTE_ID" >/dev/null || true
}
trap rollback ERR

POI_COUNT="$(python3 -c 'import json,sys; print(len(json.load(open(sys.argv[1], encoding="utf-8"))["pois"]))' "$JSON_FILE")"
for ((index=0; index<POI_COUNT; index+=1)); do
  TITLE="$(read_json "pois.$index.title")"
  POI_DESCRIPTION="$(read_json "pois.$index.description")"
  LAT="$(read_json "pois.$index.lat")"
  LON="$(read_json "pois.$index.lon")"
  RADIUS="$(read_json "pois.$index.triggerRadiusM")"
  SEQUENCE="$(read_json "pois.$index.sequence")"

  curl --fail --silent --show-error \
    -X POST "$BASE_URL/routes/$ROUTE_ID/pois" \
    -F "title=$TITLE" \
    -F "description=$POI_DESCRIPTION" \
    -F "lat=$LAT" \
    -F "lon=$LON" \
    -F "triggerRadiusM=$RADIUS" \
    -F "sequence=$SEQUENCE" >/dev/null
  echo "  Trackpunkt $((index + 1))/$POI_COUNT: $TITLE"
done

trap - ERR
cat <<EOF
Beispielstrecke erfolgreich angelegt.
Server-ID: $ROUTE_ID
API: $BASE_URL/routes/$ROUTE_ID

Hinweis: POST /routes setzt activated_at nicht. Die Strecke bleibt daher zunächst unveröffentlicht und ist für die serverseitige Prüfung vorgesehen.
EOF