/worktree-create feature-name [base-branch]

# Ensure feature name is provided
if [ -z "$1" ]; then
  echo "Error: Feature name required"
  echo "Usage: /worktree-create <feature-name> [base-branch]"
  exit 1
fi

# Convert to kebab-case if needed
FEATURE_NAME=$(echo "$1" | tr '[:upper:]' '[:lower:]' | tr '_' '-' | tr ' ' '-')

# Use provided base or detect default branch
if [ -n "$2" ]; then
  BASE_BRANCH="$2"
else
  # Detect if main or master
  if git show-ref --verify --quiet refs/heads/main; then
    BASE_BRANCH="main"
  elif git show-ref --verify --quiet refs/heads/master; then
    BASE_BRANCH="master"
  else
    echo "Error: Could not determine base branch"
    exit 1
  fi
fi

echo "Base branch: $BASE_BRANCH"

# Ensure we're in a git repository
if ! git rev-parse --git-dir > /dev/null 2>&1; then
  echo "Error: Not in a git repository"
  exit 1
fi

# Check for uncommitted changes
if ! git diff-index --quiet HEAD --; then
  echo "Warning: You have uncommitted changes"
  read -p "Continue anyway? (y/n) " -n 1 -r
  echo
  if [[ ! $REPLY =~ ^[Yy]$ ]]; then
    exit 1
  fi
fi

# Fetch latest from remote
echo "Fetching latest from origin..."
git fetch origin

# Create worktrees directory if it doesn't exist
mkdir -p worktrees

# Create the worktree with new branch
BRANCH_NAME="feature/$FEATURE_NAME"
WORKTREE_PATH="worktrees/$FEATURE_NAME"

echo "Creating worktree: $WORKTREE_PATH"
echo "Branch: $BRANCH_NAME"
echo "Based on: origin/$BASE_BRANCH"

git worktree add "$WORKTREE_PATH" -b "$BRANCH_NAME" "origin/$BASE_BRANCH"

# Create plan directory
PLAN_DIR="plans/active/$FEATURE_NAME"
mkdir -p "$PLAN_DIR"

# Create initial plan file
cat > "$PLAN_DIR/plan.md" << 'EOF'
---
title: [Feature Name]
status: planning
worktree: $FEATURE_NAME
created: $(date +%Y-%m-%d)
phases: []
---

# [Feature Name]

## Overview
[Describe what this feature does and why it's needed]

## Success Criteria
- [ ] [Criterion 1]
- [ ] [Criterion 2]
- [ ] [Criterion 3]

## Phases

### Phase 1: [Phase Name]
**Status:** Pending

**Tasks:**
- [ ] Task 1
- [ ] Task 2

## Notes
[Any additional context, decisions, or considerations]

## Open Questions
- [ ] Question 1
- [ ] Question 2
EOF

echo "Plan created at: $PLAN_DIR/plan.md"

echo ""
echo "✅ Worktree created successfully!"
echo ""
echo "📁 Location: $WORKTREE_PATH"
echo "🌿 Branch: $BRANCH_NAME"
echo "📋 Plan: $PLAN_DIR/plan.md"
echo ""
echo "Next steps:"
echo "1. cd $WORKTREE_PATH"
echo "2. Edit $PLAN_DIR/plan.md to define your plan"
echo "3. Start working on your feature"
echo ""
echo "When done:"
echo "- Use /worktree-sync to sync with $BASE_BRANCH"
echo "- Use /worktree-cleanup to remove worktree after merge"

/worktree-create user-authentication

Base branch: main
Fetching latest from origin...
Creating worktree: worktrees/user-authentication
Branch: feature/user-authentication
Based on: origin/main
✅ Worktree created successfully!

📁 Location: worktrees/user-authentication
🌿 Branch: feature/user-authentication
📋 Plan: plans/active/user-authentication/plan.md

Next steps:
1. cd worktrees/user-authentication
2. Edit plans/active/user-authentication/plan.md to define your plan
3. Start working on your feature

/worktree-create bug-fix develop