#!/bin/bash

# Configuration
PROJECT_DIR="$(pwd)"
TIMESTAMP=$(date +"%Y%m%d_%H%M%S")
BACKUP_DIR="${PROJECT_DIR}/backups"
BACKUP_FILE="${BACKUP_DIR}/kv_tiktok_backup_${TIMESTAMP}.zip"

# Create backup directory if it doesn't exist
if [ ! -d "$BACKUP_DIR" ]; then
    echo "Creating backup directory: $BACKUP_DIR"
    mkdir -p "$BACKUP_DIR"
fi

echo "Starting backup of ${PROJECT_DIR}..."
echo "Target file: ${BACKUP_FILE}"

# Zip the project contents, excluding heavy/generated folders
# Using -r for recursive, -q for quiet (optional), -x to exclude patterns
zip -r "$BACKUP_FILE" . \
    -x "*.git*" \
    -x "*.venv*" \
    -x "*node_modules*" \
    -x "*__pycache__*" \
    -x "*.DS_Store" \
    -x "*backend/downloads*" \
    -x "*backend/cache*" \
    -x "*backend/session*" \
    -x "*frontend/dist*" \
    -x "*backups*" \
    -x "*.log"

if [ $? -eq 0 ]; then
    echo "✅ Backup created successfully!"
    echo "📂 Location: ${BACKUP_FILE}"
    
    # Show file size
    if [[ "$OSTYPE" == "darwin"* ]]; then
        SIZE=$(stat -f%z "$BACKUP_FILE")
    else
        SIZE=$(stat -c%s "$BACKUP_FILE")
    fi
    # Convert to MB
    SIZE_MB=$(echo "scale=2; $SIZE / 1024 / 1024" | bc)
    echo "📦 Size: ${SIZE_MB} MB"
else
    echo "❌ Backup failed!"
    exit 1
fi