#!/bin/bash

# Sync local skills to marketplace plugins
# Usage: ./sync-skills.sh [marketplace-dir]

set -e

# Configuration
LOCAL_SKILLS_DIR="$HOME/.claude/skills"
MARKETPLACE_DIR="${1:-$(dirname "$0")}"
PLUGINS_DIR="$MARKETPLACE_DIR/skills"

echo "🔄 Syncing skills to marketplace..."
echo "Source: $LOCAL_SKILLS_DIR"
echo "Target: $PLUGINS_DIR"
echo ""

# Check if local skills directory exists
if [ ! -d "$LOCAL_SKILLS_DIR" ]; then
    echo "❌ Error: Local skills directory not found: $LOCAL_SKILLS_DIR"
    exit 1
fi

# Track changes
new_count=0
updated_count=0
unchanged_count=0

# Loop through each local skill
for skill_dir in "$LOCAL_SKILLS_DIR"/*; do
    # Skip non-directories and special files
    if [ ! -d "$skill_dir" ] || [ "$(basename "$skill_dir")" = ".git" ]; then
        continue
    fi

    # Skip registry.yaml if it exists as a directory
    if [ "$(basename "$skill_dir")" = "registry.yaml" ]; then
        continue
    fi

    skill_name=$(basename "$skill_dir")
    plugin_name="${skill_name}-plugin"
    plugin_dir="$PLUGINS_DIR/$plugin_name"

    # Check if SKILL.md exists
    if [ ! -f "$skill_dir/SKILL.md" ]; then
        echo "⚠️  Skipping $skill_name (no SKILL.md)"
        continue
    fi

    # Check if plugin already exists
    if [ -d "$plugin_dir" ]; then
        # Compare SKILL.md files
        if diff -q "$skill_dir/SKILL.md" "$plugin_dir/skills/SKILL.md" > /dev/null 2>&1; then
            echo "✓ $skill_name (unchanged)"
            ((unchanged_count++))
        else
            echo "📝 $skill_name (updated)"
            cp "$skill_dir/SKILL.md" "$plugin_dir/skills/"
            ((updated_count++))
        fi
    else
        echo "➕ $skill_name (new)"

        # Create plugin directory structure
        mkdir -p "$plugin_dir/.claude-plugin"
        mkdir -p "$plugin_dir/skills"

        # Copy SKILL.md
        cp "$skill_dir/SKILL.md" "$plugin_dir/skills/"

        # Extract description from SKILL.md frontmatter
        description=$(grep "^description:" "$skill_dir/SKILL.md" | sed 's/^description: *//' | tr -d '\n\r')
        if [ -z "$description" ]; then
            description="Plugin for $skill_name"
        fi

        # Create plugin.json
        cat > "$plugin_dir/.claude-plugin/plugin.json" << EOF
{
  "name": "$plugin_name",
  "description": "$description",
  "version": "1.0.0",
  "author": {
    "name": "qiudl"
  }
}
EOF

        ((new_count++))
    fi
done

echo ""
echo "📊 Summary:"
echo "  New: $new_count"
echo "  Updated: $updated_count"
echo "  Unchanged: $unchanged_count"
echo ""

# Regenerate marketplace.json if there are changes
if [ $new_count -gt 0 ] || [ $updated_count -gt 0 ]; then
    echo "🔄 Regenerating marketplace.json..."
    cd "$MARKETPLACE_DIR"

    # Run the generate script if it exists
    if [ -f "generate-marketplace.py" ]; then
        python3 generate-marketplace.py
    else
        echo "⚠️  Warning: generate-marketplace.py not found, skipping marketplace.json regeneration"
    fi

    echo ""
    echo "✅ Sync complete! Changes ready to commit."
    echo ""
    echo "Next steps:"
    echo "  cd $MARKETPLACE_DIR"
    echo "  git status"
    echo "  git add ."
    echo "  git commit -m 'Sync skills from local'"
    echo "  git push"
else
    echo "✅ All plugins are up to date!"
fi