#!/usr/bin/env bash
# bootstrap_dashboard_ro.sh — create/refresh the dashboard_ro read-only role.
# ─────────────────────────────────────────────────────────────────────────────
# Run ON THE HOST. Generates a strong password into ~/.dashboard_ro.pw (0600) on
# first run (reused thereafter), then applies scripts/dashboard_ro_role.sql to the
# prod DB as the postgres superuser. The password is NEVER printed and never
# leaves the host — the staging deploy script reads the same ~/.dashboard_ro.pw.
#
# Deploy:
#   scp scripts/dashboard_ro_role.sql scripts/bootstrap_dashboard_ro.sh \
#       kianiadee@twala.rahamafresh.com:~/
#   ssh kianiadee@twala.rahamafresh.com 'bash ~/bootstrap_dashboard_ro.sh'
#
# Idempotent: re-running rotates nothing unless ~/.dashboard_ro.pw is deleted
# first (then it generates + sets a fresh password and you must redeploy the API).
# ─────────────────────────────────────────────────────────────────────────────
set -euo pipefail

PW_FILE="${DASHBOARD_RO_PW_FILE:-$HOME/.dashboard_ro.pw}"
SQL_FILE="${1:-$HOME/dashboard_ro_role.sql}"

test -f "$SQL_FILE" || { echo "ERROR: role SQL not found at $SQL_FILE (scp scripts/dashboard_ro_role.sql to ~ first)"; exit 1; }

if [ ! -s "$PW_FILE" ]; then
  ( umask 077; openssl rand -hex 24 > "$PW_FILE" )
  chmod 600 "$PW_FILE"
  echo "Generated new dashboard_ro password -> $PW_FILE (0600)"
else
  echo "Reusing existing dashboard_ro password from $PW_FILE"
fi
PW=$(cat "$PW_FILE")

DB=$(docker ps --filter name=timescale_db --format "{{.Names}}" | head -1)
[ -n "$DB" ] || { echo "ERROR: timescale_db container not found"; exit 1; }

echo "Applying dashboard_ro role DDL to $DB as postgres ..."
docker exec -i "$DB" psql -U postgres -d tracksolid_db -v ON_ERROR_STOP=1 -v ro_pw="$PW" < "$SQL_FILE"
echo "dashboard_ro ready (password not printed). Now (re)run deploy_dashboard_api_staging.sh."