#!/usr/bin/env bash
# podman-standalone.sh — Turnstone rootful Podman setup (no Compose)
#
# For hosts running system Podman (non-rootless) with systemd.
# Turnstone is a diagnostic log intelligence layer — glean service logs,
# search by symptom, and view incidents in a lightweight web UI.
#
# ── Prerequisites ────────────────────────────────────────────────────────────
#   1. Clone the repo:
#        sudo git clone https://git.opensourcesolarpunk.com/Circuit-Forge/turnstone.git /opt/turnstone
#        sudo chown -R x:x /opt/turnstone
#
#   2. Build the image (requires Docker or Podman with BuildKit/multi-stage support):
#        cd /opt/turnstone && podman build -t localhost/turnstone:latest .
#
#   3. Create data and patterns directories, then copy config files:
#        mkdir -p /opt/turnstone/{data,patterns}
#        cp /opt/turnstone/patterns/default.yaml /opt/turnstone/patterns/
#        cp /opt/turnstone/patterns/sources.yaml /opt/turnstone/patterns/
#        # Edit sources.yaml if any paths differ on this host.
#
#   4. Run this script:
#        bash /opt/turnstone/podman-standalone.sh
#
# ── After setup — generate systemd unit file ─────────────────────────────────
#   sudo podman generate systemd --new --name turnstone \
#     | sudo tee /etc/systemd/system/turnstone.service
#   sudo systemctl daemon-reload
#   sudo systemctl enable --now turnstone
#
# ── Gleaning logs ─────────────────────────────────────────────────────────────
#   All service logs under /opt are accessible inside the container.
#   Sources are configured in patterns/sources.yaml (bind-mounted at /patterns/).
#
#   To glean all sources (run manually or via cron):
#
#     sudo podman exec turnstone python scripts/glean_corpus.py \
#       --sources /patterns/sources.yaml --db /data/turnstone.db
#
#   Example cron (every 15 minutes, add to root's crontab with: sudo crontab -e):
#     */15 * * * * podman exec turnstone python scripts/glean_corpus.py \
#       --sources /patterns/sources.yaml --db /data/turnstone.db >> /var/log/turnstone-glean.log 2>&1
#
#   To add a new log source: edit /opt/turnstone/patterns/sources.yaml — no restart needed.
#
# ── Adding Caddy reverse proxy ────────────────────────────────────────────────
#   Add to /etc/caddy/Caddyfile:
#
#     turnstone.example-node.tv {
#       import protected
#       reverse_proxy 10.0.0.10:8534
#       import cloudflare
#     }
#
#   Then: sudo systemctl reload caddy
#
# ── Ports ────────────────────────────────────────────────────────────────────
#   Turnstone UI  → http://localhost:8534/turnstone/
#
set -euo pipefail

REPO_DIR=/opt/turnstone
DATA_DIR=/opt/turnstone/data
PATTERNS_DIR=/opt/turnstone/patterns
TZ=America/Los_Angeles

# ── Bundle push configuration ────────────────────────────────────────────────
# Set TURNSTONE_BUNDLE_ENDPOINT before running this script to enable the
# "Send Bundle" button in the Incidents UI:
#
#   export TURNSTONE_BUNDLE_ENDPOINT=https://turnstone.circuitforge.tech/turnstone/api/bundles
#   bash /opt/turnstone/podman-standalone.sh
#
# ── Orchard submission (opt-in telemetry) ────────────────────────────────────
# Set TURNSTONE_SUBMIT_ENDPOINT to push pattern-matched log entries to a CF
# receiving instance after each glean run. Only matched entries are sent —
# no raw log content. Used to build Avocet training data.
#
#   export TURNSTONE_SUBMIT_ENDPOINT=https://harvest.circuitforge.tech/contrib2
#   bash /opt/turnstone/podman-standalone.sh
#
# TURNSTONE_SOURCE_HOST is auto-detected from `hostname` — override if needed.

# ── Turnstone container ───────────────────────────────────────────────────────
# Image is built locally — no registry auto-update label.
# Run this script after every `git pull` to rebuild and redeploy.
#
# /opt is mounted read-only so all service logs under /opt/*/config/logs/ are
# accessible without per-service mounts. Add new sources to patterns/sources.yaml
# — no container restart needed.
#
# Must be run as root (sudo bash podman-standalone.sh) — rootful Podman only.
#

# Build image from current source (bakes app/ code into the image)
echo "Building Turnstone image..."
podman build -t localhost/turnstone:latest "${REPO_DIR}"

# Remove existing container if present (safe re-run)
podman rm -f turnstone 2>/dev/null || true

podman run -d \
  --name=turnstone \
  --restart=unless-stopped \
  --net=host \
  -v "${DATA_DIR}:/data:Z" \
  -v "${PATTERNS_DIR}:/patterns:Z" \
  -v /opt:/opt:ro \
  -v /var/log:/var/log:ro \
  -e TURNSTONE_DB=/data/turnstone.db \
  -e TURNSTONE_SOURCE_HOST="$(hostname)" \
  -e TURNSTONE_BUNDLE_ENDPOINT="${TURNSTONE_BUNDLE_ENDPOINT:-}" \
  -e TURNSTONE_SUBMIT_ENDPOINT="${TURNSTONE_SUBMIT_ENDPOINT:-}" \
  -e PYTHONUNBUFFERED=1 \
  -e TZ="${TZ}" \
  --health-cmd="curl -f http://localhost:8534/turnstone/health || exit 1" \
  --health-interval=30s \
  --health-timeout=10s \
  --health-start-period=20s \
  --health-retries=3 \
  localhost/turnstone:latest

echo ""
echo "Turnstone is starting up."
echo "  UI: http://localhost:8534/turnstone/"
echo ""

# Regenerate systemd unit so it references the freshly-built image.
# The --new flag means systemd re-creates the container on each start
# rather than binding to a specific container ID.
if [ -d /etc/systemd/system ]; then
  echo "Regenerating systemd unit..."
  podman generate systemd --new --name turnstone \
    | tee /etc/systemd/system/turnstone.service > /dev/null
  systemctl daemon-reload
  systemctl enable turnstone.service 2>/dev/null || true
  echo "  systemd unit updated — run: sudo systemctl restart turnstone.service"
  echo ""
fi

echo "Check container health with:"
echo "  sudo podman ps"
echo "  sudo podman logs turnstone"
echo ""
echo "To glean all sources now:"
echo "  sudo podman exec turnstone python scripts/glean_corpus.py \\"
echo "    --sources /patterns/sources.yaml --db /data/turnstone.db"
echo ""
echo "To add a new source: edit /opt/turnstone/patterns/sources.yaml — no restart needed."