#!/bin/bash

# Auto-commit script for timeshift project
# Usage: ./auto-commit.sh [message]

set -e

# Function to auto-commit changes
auto_commit() {
    local message="$1"
    local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
    
    # Check if there are any changes
    if [[ -n $(git status --porcelain) ]]; then
        echo "🔄 Auto-committing changes at $timestamp"
        
        # Add all changes
        git add .
        
        # Create commit message
        if [[ -z "$message" ]]; then
            message="Auto-commit: Save work in progress"
        fi
        
        # Commit with timestamp
        git commit -m "$(cat <<EOF
$message

Auto-saved at $timestamp

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
EOF
)"
        
        echo "✅ Changes committed successfully"
        
        # Show short log
        git log --oneline -3
    else
        echo "📝 No changes to commit at $timestamp"
    fi
}

# Function to create a safe restore point
create_restore_point() {
    local description="$1"
    local branch_name="restore-point-$(date '+%Y%m%d-%H%M%S')"
    
    echo "🔖 Creating restore point: $branch_name"
    
    # Commit current changes first
    auto_commit "Save before creating restore point: $description"
    
    # Create a new branch as restore point
    git branch "$branch_name"
    
    echo "✅ Restore point created: $branch_name"
    echo "📋 To restore later, run: git checkout $branch_name"
}

# Function to show available restore points
list_restore_points() {
    echo "📋 Available restore points:"
    git branch | grep "restore-point-" | sed 's/^..//' | sort -r
}

# Function to clean old restore points (keep last 10)
cleanup_restore_points() {
    echo "🧹 Cleaning old restore points (keeping last 10)..."
    git branch | grep "restore-point-" | sed 's/^..//' | sort -r | tail -n +11 | while read branch; do
        git branch -D "$branch" 2>/dev/null && echo "🗑️  Deleted old restore point: $branch"
    done
}

# Main script logic
case "$1" in
    "commit")
        auto_commit "$2"
        ;;
    "restore-point")
        create_restore_point "$2"
        ;;
    "list")
        list_restore_points
        ;;
    "cleanup")
        cleanup_restore_points
        ;;
    *)
        echo "📚 Auto-commit utility for timeshift project"
        echo ""
        echo "Usage:"
        echo "  $0 commit [message]           - Auto-commit current changes"
        echo "  $0 restore-point [desc]       - Create a restore point branch"
        echo "  $0 list                       - List available restore points"
        echo "  $0 cleanup                    - Clean old restore points"
        echo ""
        echo "Examples:"
        echo "  $0 commit 'Fixed spreadsheet layout'"
        echo "  $0 restore-point 'Before major refactor'"
        echo ""
        auto_commit "$1"
        ;;
esac