#!/bin/bash
# deploy.sh - Deploy OSINT Board to the shared gu_common infrastructure

set -e

SKIP_PULL=false
if [ "$1" = "--skip-pull" ]; then
  SKIP_PULL=true
fi

SERVER="${DEPLOY_SERVER:-root@76.13.144.52}"
REMOTE_DIR="${DEPLOY_DIR:-/opt/gupi}"
# GUPI runs from its own dir with its own env; the shared services come from gu_common.
COMPOSE="docker compose -f ${REMOTE_DIR}/docker-compose.prod.yml --env-file ${REMOTE_DIR}/.env.prod"

TARGET_HOST=$(echo "${SERVER}" | sed 's/.*@//')
OWN_IP=$(curl -sf --max-time 3 ifconfig.me 2>/dev/null || echo "unknown")
if [ "$OWN_IP" = "$TARGET_HOST" ]; then
  echo "Error: deploy.sh must be run from your local machine, not the server."
  exit 1
fi

REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
echo "==> Deploying OSINT Board to ${SERVER}:${REMOTE_DIR}"

if [ "$SKIP_PULL" = true ]; then
  echo "==> Skipping git pull (--skip-pull flag set)"
else
  echo "==> Checking for upstream changes..."
  HEAD_BEFORE=$(git -C "$REPO_DIR" rev-parse HEAD)
  if ! git -C "$REPO_DIR" pull --ff-only; then
    echo "Error: git pull failed. Resolve local state before deploying."
    exit 1
  fi
  HEAD_AFTER=$(git -C "$REPO_DIR" rev-parse HEAD)
  if [ "$HEAD_BEFORE" != "$HEAD_AFTER" ]; then
    echo "New upstream commits were pulled. Review and test them before deploying."
    git -C "$REPO_DIR" log --oneline "${HEAD_BEFORE}..${HEAD_AFTER}"
    exit 1
  fi
fi

echo "==> Building locally..."
npm run build

echo "==> Syncing files..."
ssh "$SERVER" "mkdir -p ${REMOTE_DIR}"
rsync -avz --delete \
  --exclude 'node_modules' \
  --exclude '.git' \
  --exclude 'dist' \
  --exclude '.env' \
  --exclude '.env.local' \
  --exclude '.env.prod' \
  --exclude '.DS_Store' \
  ./ "${SERVER}:${REMOTE_DIR}/"

echo "==> Verifying GUPI environment..."
ssh "$SERVER" "test -f ${REMOTE_DIR}/.env.prod || { echo 'ERROR: ${REMOTE_DIR}/.env.prod is missing (copy .env.prod.example and fill it in)'; exit 1; }"

echo "==> Ensuring shared network exists..."
ssh "$SERVER" "docker network create gnommo 2>/dev/null || true"

echo "==> Building application image..."
ssh "$SERVER" "CACHEBUST=\$(date +%s) && $COMPOSE build --build-arg CACHEBUST=\$CACHEBUST app"

echo "==> Waiting for gu_common PostgreSQL..."
for i in $(seq 1 12); do
  if ssh "$SERVER" "docker exec gnommo-db pg_isready -q" 2>/dev/null; then
    echo "    PostgreSQL is ready."
    break
  fi
  echo "    Not ready yet, waiting... ($i/12)"
  sleep 5
  if [ "$i" -eq 12 ]; then
    echo "ERROR: gu_common PostgreSQL did not become ready."
    exit 1
  fi
done

echo "==> Running osint schema migrations..."
ssh "$SERVER" "$COMPOSE run --rm --no-deps app npm run migrate:up"

echo "==> Starting application..."
ssh "$SERVER" "$COMPOSE up -d app"

echo "==> Waiting for OSINT Board health check..."
for i in $(seq 1 24); do
  if ssh "$SERVER" "docker exec gnommo-osint-board node -e \"fetch('http://127.0.0.1:8787/api/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))\"" 2>/dev/null; then
    echo "    OSINT Board is healthy."
    break
  fi
  echo "    Not ready yet, waiting... ($i/24)"
  sleep 5
  if [ "$i" -eq 24 ]; then
    echo "ERROR: OSINT Board did not become healthy within 2 minutes."
    exit 1
  fi
done

echo "==> Done! https://gupi.glitch.university"