#!/usr/bin/env bash
set -euo pipefail
#
# switch-event.sh — point the scanner app at a DIFFERENT NocoDB tickets (and
# optionally audit) table, e.g. to start a NEW event on a fresh table while
# keeping the old table intact for archive. Backs up backend/.env, updates it,
# and restarts the app container. The old table is never touched.
#
# Usage:
#   scripts/switch-event.sh <TICKETS_TABLE_ID> [AUDIT_TABLE_ID]
#
# FIRST create the new table(s): in the NocoDB UI, DUPLICATE the current table
# with "structure only" (no records). That preserves every column AND the Id
# primary key — critical, because updates against a table with no primary key
# would hit every row. Then grab the new table id from its URL/API and pass it
# here. (The app also fail-safes: it refuses to update a row that has no Id.)
#
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
ENV_FILE="$ROOT/backend/.env"
CONTAINER="${CONTAINER:-camptickets}"

NEW_TICKETS="${1:-}"
NEW_AUDIT="${2:-}"
[ -n "$NEW_TICKETS" ] || { echo "Usage: $0 <TICKETS_TABLE_ID> [AUDIT_TABLE_ID]" >&2; exit 1; }

get() { grep -E "^$1=" "$ENV_FILE" | head -1 | cut -d= -f2-; }
BASE_URL="$(get NOCODB_BASE_URL)"
TOKEN="$(get NOCODB_API_TOKEN)"
CUR_TICKETS="$(get NOCODB_TABLE_ID)"
CUR_AUDIT="$(get NOCODB_AUDIT_TABLE_ID)"

# Validate a table is reachable and (if it has rows) exposes an Id primary key.
check() {
  local table="$1" tmp http
  tmp="$(mktemp)"
  http="$(curl -s -o "$tmp" -w '%{http_code}' -H "xc-token: $TOKEN" \
    "$BASE_URL/api/v2/tables/$table/records?limit=1")"
  if [ "$http" != "200" ]; then
    echo "  ✗ $table not reachable (HTTP $http)"; rm -f "$tmp"; return 1
  fi
  if ! python3 -c 'import sys,json; l=json.load(open(sys.argv[1]))["list"]; sys.exit(0 if (not l or "Id" in l[0]) else 1)' "$tmp"; then
    echo "  ✗ $table has rows without an Id primary key — refusing"; rm -f "$tmp"; return 1
  fi
  rm -f "$tmp"; echo "  ✓ $table reachable"
}

echo "Validating new table(s) on $BASE_URL ..."
check "$NEW_TICKETS" || exit 1
[ -n "$NEW_AUDIT" ] && { check "$NEW_AUDIT" || exit 1; }

BK="$ENV_FILE.bak.$(date +%Y%m%d-%H%M%S)"
cp "$ENV_FILE" "$BK"
echo "Backed up env -> $BK"

echo "Switching tables:"
echo "  tickets: $CUR_TICKETS -> $NEW_TICKETS"
sed -i -E "s|^NOCODB_TABLE_ID=.*|NOCODB_TABLE_ID=$NEW_TICKETS|" "$ENV_FILE"
if [ -n "$NEW_AUDIT" ]; then
  echo "  audit:   $CUR_AUDIT -> $NEW_AUDIT"
  sed -i -E "s|^NOCODB_AUDIT_TABLE_ID=.*|NOCODB_AUDIT_TABLE_ID=$NEW_AUDIT|" "$ENV_FILE"
else
  echo "  audit:   unchanged ($CUR_AUDIT) — pass a second arg to switch it too"
fi

echo "Restarting $CONTAINER ..."
( cd "$ROOT" && docker compose up -d --force-recreate >/dev/null )
sleep 3

echo "Now active:"
echo "  NOCODB_TABLE_ID=$(get NOCODB_TABLE_ID)"
echo "  NOCODB_AUDIT_TABLE_ID=$(get NOCODB_AUDIT_TABLE_ID)"
echo "Old tickets table $CUR_TICKETS kept intact. (env backup: $BK)"