#!/usr/bin/env bash
# Post-commit hook:
# 1) log the commit event to local agent memory
# 2) import recent Codex messages into local memory
# 3) flush remote queue (no-op unless remote sync is enabled)
# 4) auto-deploy landing page to silo when it changes

set -u

REPO_ROOT="$(git rev-parse --show-toplevel 2>/dev/null || true)"
if [ -z "${REPO_ROOT:-}" ]; then
  exit 0
fi

NODE_BIN="${NODE_BIN:-node}"
if ! command -v "$NODE_BIN" >/dev/null 2>&1; then
  exit 0
fi

# Agent memory
"$NODE_BIN" "$REPO_ROOT/memory/hook.mjs" post-commit >/dev/null 2>&1 || true
"$NODE_BIN" "$REPO_ROOT/memory/codex-sync.mjs" --max-sessions 3 --max-events 120 >/dev/null 2>&1 || true
"$NODE_BIN" "$REPO_ROOT/memory/cli.mjs" flush-remote >/dev/null 2>&1 || true

# Auto-deploy landing page to silo when it changes
if git diff-tree --no-commit-id --name-only -r HEAD | grep -q "feed/landing-page.html"; then
  echo "📺 Landing page changed — deploying to silo..."
  fish "$REPO_ROOT/feed/deploy-silo.fish" --landing 2>&1 | tail -3 &
fi

# Auto-deploy AT PDS frontend when tracked files change
AT_FRONTEND_FILES="at/index.html|at/user-page.html|at/media-modal.js|at/media-records.js"
if git diff-tree --no-commit-id --name-only -r HEAD | grep -qE "^($AT_FRONTEND_FILES)$"; then
  echo "🔮 AT frontend changed — deploying to PDS..."
  bash "$REPO_ROOT/at/scripts/deploy-at-frontend.sh" 2>&1 | tail -3 &
fi

# 🏟️ Auto-deploy arena: lith (client) + session-server (multiplayer authority)
# when any arena-touching file changes on main. Set AC_NO_AUTO_DEPLOY=1 in the
# env to skip (e.g. while bisecting / hotfixing without going live).
#
# Pipeline:
#   1. push HEAD to knot (origin) so lith's pull matches local
#   2. fire lith/deploy.fish — pulls knot, restarts service
#   3. wait for the knot→github mirror (lith's 60s systemd timer)
#   4. fire session-server/deploy.fish — VPS git pull + node restart
#
# Both deploys run async so they don't block the commit. Logs land in
# .git/arena-auto-deploy.log for postmortems.
CURRENT_BRANCH="$(git -C "$REPO_ROOT" symbolic-ref --short HEAD 2>/dev/null || true)"
if [ "${AC_NO_AUTO_DEPLOY:-}" != "1" ] && [ "$CURRENT_BRANCH" = "main" ]; then
  ARENA_TOUCH_RE='^(system/public/aesthetic.computer/disks/arena\.mjs|system/public/aesthetic.computer/lib/(arena-world|pmove|cam-doll)\.mjs|session-server/(arena-manager|session)\.mjs|shared/.*)$'
  if git diff-tree --no-commit-id --name-only -r HEAD | grep -qE "$ARENA_TOUCH_RE"; then
    echo "🏟️ arena change on main — auto-deploying lith + session-server in background…"
    DEPLOY_LOG="$REPO_ROOT/.git/arena-auto-deploy.log"
    (
      printf "\n=== %s commit=%s ===\n" "$(date -Iseconds)" "$(git -C "$REPO_ROOT" rev-parse --short HEAD)" >> "$DEPLOY_LOG"
      # 1. Push to knot if local is ahead (idempotent if already pushed).
      LOCAL_HEAD=$(git -C "$REPO_ROOT" rev-parse HEAD)
      REMOTE_HEAD=$(git -C "$REPO_ROOT" rev-parse origin/main 2>/dev/null || echo none)
      if [ "$LOCAL_HEAD" != "$REMOTE_HEAD" ]; then
        echo "→ pushing $LOCAL_HEAD to origin/main" >> "$DEPLOY_LOG"
        git -C "$REPO_ROOT" push origin main >> "$DEPLOY_LOG" 2>&1 || \
          echo "⚠ push to knot failed — skipping deploys" >> "$DEPLOY_LOG"
      fi
      # 2. lith (pulls from knot directly).
      echo "→ fish lith/deploy.fish" >> "$DEPLOY_LOG"
      fish "$REPO_ROOT/lith/deploy.fish" >> "$DEPLOY_LOG" 2>&1 || \
        echo "⚠ lith deploy failed" >> "$DEPLOY_LOG"
      # 3. give knot→github mirror time to sync (lith systemd timer = 60s).
      sleep 75
      # 4. session-server (pulls from github via VPS).
      echo "→ fish session-server/deploy.fish" >> "$DEPLOY_LOG"
      fish "$REPO_ROOT/session-server/deploy.fish" >> "$DEPLOY_LOG" 2>&1 || \
        echo "⚠ session-server deploy failed" >> "$DEPLOY_LOG"
      echo "→ done" >> "$DEPLOY_LOG"
    ) &
    disown 2>/dev/null || true
  fi
fi

exit 0