#!/bin/bash

# Deployment Script für Harheimer TC Website
# Sichert Produktivdaten vor dem Build und stellt sie danach wieder her

echo "=== Harheimer TC Deployment ==="
echo ""

# 1. Handle local changes and Git Pull
echo "1. Handling local changes and pulling latest from git..."

# Check if there are merge conflicts first
if [ -n "$(git status --porcelain | grep '^UU\|^AA\|^DD')" ]; then
  echo "   Resolving existing merge conflicts..."
  git reset --hard HEAD
fi

# Stash any local changes (including production data)
echo "   Stashing local changes..."
git stash push -m "Production deployment stash $(date)"

# Pull latest changes
echo "   Pulling latest changes..."
git pull
if [ $? -ne 0 ]; then
  echo "ERROR: Git pull failed!"
  exit 1
fi

# 2. Backup Production Data (from stash)
echo ""
echo "2. Backing up production data from stash..."

# Create backup directory
mkdir -p .backup

# Try to restore stashed data temporarily to backup it
echo "   Restoring stashed data for backup..."
git stash show -p | git apply --index 2>/dev/null || echo "   No stashed data to restore"

# Backup production data
cp -r server/data .backup/data_backup 2>/dev/null || echo "   No server/data to backup"
cp public/data/termine.csv .backup/termine.csv 2>/dev/null || echo "   No termine.csv to backup"
cp public/data/mannschaften.csv .backup/mannschaften.csv 2>/dev/null || echo "   No mannschaften.csv to backup"
cp public/data/spielsysteme.csv .backup/spielsysteme.csv 2>/dev/null || echo "   No spielsysteme.csv to backup"
cp public/data/vereinsmeisterschaften.csv .backup/vereinsmeisterschaften.csv 2>/dev/null || echo "   No vereinsmeisterschaften.csv to backup"

# Reset any changes from stash restore
git reset --hard HEAD

# 3. Install dependencies
echo ""
echo "3. Installing dependencies..."
npm install
if [ $? -ne 0 ]; then
  echo "ERROR: npm install failed!"
  exit 1
fi

# 4. Remove old build (but keep data!)
echo ""
echo "4. Removing old build output..."
rm -rf .output

# 5. Build
echo ""
echo "5. Building application..."
npm run build
if [ $? -ne 0 ]; then
  echo "ERROR: Build failed!"
  exit 1
fi

# 6. Restore Production Data
echo ""
echo "6. Restoring production data..."
cp -r .backup/data_backup/* server/data/ 2>/dev/null || echo "No data to restore"
cp .backup/termine.csv public/data/termine.csv 2>/dev/null || echo "No termine.csv to restore"
cp .backup/mannschaften.csv public/data/mannschaften.csv 2>/dev/null || echo "No mannschaften.csv to restore"
cp .backup/spielsysteme.csv public/data/spielsysteme.csv 2>/dev/null || echo "No spielsysteme.csv to restore"
cp .backup/vereinsmeisterschaften.csv public/data/vereinsmeisterschaften.csv 2>/dev/null || echo "No vereinsmeisterschaften.csv to restore"

# 7. Cleanup backup and stash
echo ""
echo "7. Cleaning up backup and stash..."
rm -rf .backup

# Clear the deployment stash (keep other stashes)
echo "   Clearing deployment stash..."
git stash list | grep "Production deployment stash" | head -1 | cut -d: -f1 | xargs -r git stash drop

# 8. Restart PM2
echo ""
echo "8. Restarting PM2..."
pm2 restart harheimertc

echo ""
echo "=== Deployment completed successfully! ==="
echo "The application is now running with the latest code and your production data preserved."