#!/usr/bin/env bash
#
# Scheduled dependency update + vulnerability scan (every ~20 days).
#
# Driven by the systemd user timer `skatespots-deps.timer` (a daily tick; this
# script self-gates to one real run per INTERVAL_DAYS). What it does:
#   1. bails if the working tree is dirty (never mixes with your own changes);
#   2. scans `npm outdated` + `npm audit` into a dated report;
#   3. applies NON-breaking updates (`npm update` + `npm audit fix` — never --force);
#   4. runs the full test suite (`npm test`) AND the boot smoke test;
#   5. on success commits + pushes the lockfile/package.json (the deploy timer then
#      ships it); on failure it RESTORES the previous lockfile and reports.
#
# Flags:
#   --scan-only   report only (no apply, no commit)
#   --no-push     apply + test + commit locally, but don't push
#   --force       ignore the interval gate
#
# Env: DEPS_INTERVAL_DAYS (default 20), DEPS_STATE_DIR (default ~/.local/state/skatespots-deps)
set -uo pipefail

REPO="/home/sovereignsk8/SkateSpots"
export PATH="/home/sovereignsk8/.nvm/versions/node/v22.23.1/bin:$PATH"
cd "$REPO"

INTERVAL_DAYS="${DEPS_INTERVAL_DAYS:-20}"
STATE_DIR="${DEPS_STATE_DIR:-$HOME/.local/state/skatespots-deps}"
mkdir -p "$STATE_DIR"
LAST="$STATE_DIR/last-run"
REPORT="$STATE_DIR/report-$(LC_ALL=C date +%F).txt"

SCAN_ONLY=0; NO_PUSH=0; FORCE=0
for a in "$@"; do
  case "$a" in
    --scan-only) SCAN_ONLY=1 ;;
    --no-push) NO_PUSH=1 ;;
    --force) FORCE=1 ;;
  esac
done

log() { echo "[$(date -Is)] $*"; }
notify() {
  command -v notify-send >/dev/null 2>&1 && notify-send -a SkateSpots "Dependency job" "$1" 2>/dev/null || true
}
finish_timer() { date +%s > "$LAST"; }

# ── interval gate ───────────────────────────────────────────────────────────
if [ "$FORCE" -eq 0 ] && [ "$SCAN_ONLY" -eq 0 ] && [ -f "$LAST" ]; then
  last=$(cat "$LAST" 2>/dev/null || echo 0)
  now=$(date +%s)
  elapsed=$(( now - last ))
  if [ "$elapsed" -lt $(( INTERVAL_DAYS * 86400 )) ]; then
    log "not due yet ($(( (INTERVAL_DAYS * 86400 - elapsed) / 86400 ))d left)"
    exit 0
  fi
fi

# ── scan ────────────────────────────────────────────────────────────────────
{
  echo "=== SkateSpots dependency scan — $(date -Is) ==="
  echo
  echo "=== npm outdated ==="
  npm outdated 2>&1 || true
  echo
  echo "=== npm audit ==="
  npm audit 2>&1 || true
} | tee "$REPORT"

if [ "$SCAN_ONLY" -eq 1 ]; then
  log "scan-only; report: $REPORT"
  exit 0
fi

# ── never mix with the user's uncommitted work ──────────────────────────────
if [ -n "$(git status --porcelain)" ]; then
  log "working tree is dirty — skipping (commit or stash first)"
  exit 0
fi

cp package.json "$STATE_DIR/package.json.bak" 2>/dev/null || true
cp package-lock.json "$STATE_DIR/package-lock.json.bak" 2>/dev/null || true

# ── apply non-breaking updates ──────────────────────────────────────────────
log "applying non-breaking updates (npm update + npm audit fix)…"
npm update 2>&1 | tail -3
npm audit fix 2>&1 | tail -3
{
  echo; echo "=== post-update npm audit ==="; npm audit 2>&1 || true
} | tee -a "$REPORT"

# ── gate: full tests + boot smoke ───────────────────────────────────────────
log "running tests + smoke…"
if npm test >"$STATE_DIR/test.log" 2>&1 && node scripts/smoke-test.mjs >"$STATE_DIR/smoke.log" 2>&1; then
  if [ -n "$(git status --porcelain package.json package-lock.json)" ]; then
    git add package.json package-lock.json
    git commit -m "chore(deps): scheduled dependency update + audit ($(LC_ALL=C date +%F))" >/dev/null 2>&1 || true
    if [ "$NO_PUSH" -eq 0 ]; then
      # Bound the push: the git remote signs via the remote signer and can stall.
      if timeout 180 git push origin main >"$STATE_DIR/push.log" 2>&1; then
        log "pushed dependency update"
        notify "Dependency update applied, tests pass, pushed."
      else
        log "push failed/skipped (see $STATE_DIR/push.log)"
        notify "Dependency update committed locally but the push failed."
      fi
    else
      log "committed locally (--no-push)"
      notify "Dependency update applied and committed locally."
    fi
  else
    log "no dependency changes to commit"
    notify "Dependency scan complete: nothing to update."
  fi
  finish_timer
  log "done"
else
  log "tests FAILED — restoring the previous lockfile"
  cp "$STATE_DIR/package.json.bak" package.json 2>/dev/null || true
  cp "$STATE_DIR/package-lock.json.bak" package-lock.json 2>/dev/null || true
  npm i --silent >/dev/null 2>&1 || true
  notify "Dependency update REVERTED — tests failed (see $STATE_DIR/test.log)."
  finish_timer
  exit 1
fi