#!/bin/bash
# Boot Update Script: Automatically pull latest main, build, and prepare for PM2
# This script runs on LXC container boot BEFORE PM2 starts.
# It ensures the app is always up-to-date with the main branch.

set -e

APP_DIR="/root/My-Weekly-ToDo-List"
LOG_FILE="/var/log/app-boot-update.log"

log() {
    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE"
}

log "=== Boot update started ==="

cd "$APP_DIR"

# Check if there are remote changes
log "Fetching from origin..."
git fetch origin main 2>&1 | tee -a "$LOG_FILE"

LOCAL=$(git rev-parse HEAD)
REMOTE=$(git rev-parse origin/main)

if [ "$LOCAL" = "$REMOTE" ]; then
    log "Already up-to-date. No rebuild needed."
    log "=== Boot update finished (no changes) ==="
    exit 0
fi

log "Changes detected. Updating from $LOCAL to $REMOTE"

log "Pulling latest changes..."
git checkout main 2>&1 | tee -a "$LOG_FILE"
git pull origin main 2>&1 | tee -a "$LOG_FILE"

log "Installing dependencies..."
npm install 2>&1 | tee -a "$LOG_FILE"

log "Updating database schema..."
npx prisma db push 2>&1 | tee -a "$LOG_FILE"

log "Regenerating Prisma client..."
npx prisma generate 2>&1 | tee -a "$LOG_FILE"

log "Building application..."
npm run build 2>&1 | tee -a "$LOG_FILE"

log "=== Boot update finished (rebuilt successfully) ==="