#!/usr/bin/env bash
# Backup current macOS defaults before applying new ones

set -euo pipefail

BACKUP_DIR="$HOME/dotfiles/macos/backups"
TIMESTAMP=$(date +%Y%m%d_%H%M%S)
BACKUP_FILE="$BACKUP_DIR/defaults_backup_${TIMESTAMP}.txt"

# Colors
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

echo -e "${GREEN}Backing up current macOS defaults...${NC}"

# Create backup directory
mkdir -p "$BACKUP_DIR"

# Domains to backup
domains=(
    "NSGlobalDomain"
    "com.apple.dock"
    "com.apple.finder"
    "com.apple.Safari"
    "com.apple.screencapture"
    "com.apple.screensaver"
    "com.apple.ActivityMonitor"
    "com.apple.TextEdit"
)

# Backup each domain
{
    echo "# macOS Defaults Backup"
    echo "# Created: $(date)"
    echo "# System: $(sw_vers -productVersion)"
    echo ""
} > "$BACKUP_FILE"

for domain in "${domains[@]}"; do
    echo -e "${YELLOW}Backing up $domain...${NC}"
    {
        echo "# ============================================="
        echo "# $domain"
        echo "# ============================================="
        defaults read "$domain" 2>/dev/null || echo "# No settings found for $domain"
        echo ""
    } >> "$BACKUP_FILE"
done

# Backup specific important settings
echo -e "${YELLOW}Backing up specific settings...${NC}"
{
    echo "# ============================================="
    echo "# Specific Settings"
    echo "# ============================================="
    echo "# Dock position: $(defaults read com.apple.dock orientation 2>/dev/null || echo 'default')"
    echo "# Dock size: $(defaults read com.apple.dock tilesize 2>/dev/null || echo 'default')"
    echo "# Show hidden files: $(defaults read com.apple.finder AppleShowAllFiles 2>/dev/null || echo 'false')"
    echo "# Key repeat: $(defaults read NSGlobalDomain KeyRepeat 2>/dev/null || echo 'default')"
    echo "# Initial key repeat: $(defaults read NSGlobalDomain InitialKeyRepeat 2>/dev/null || echo 'default')"
} >> "$BACKUP_FILE"

echo -e "${GREEN}✓ Backup saved to: $BACKUP_FILE${NC}"

# Keep only last 5 backups
cd "$BACKUP_DIR"
ls -t defaults_backup_*.txt 2>/dev/null | tail -n +6 | xargs -r rm

echo -e "${GREEN}Backup complete!${NC}"