#!/bin/bash
# Script to install importmap packages using npm and copy them to assets/vendor
# This runs during Docker build to bake packages into the image

set -e

cd "$(dirname "$0")/.."

echo "Installing npm packages for Asset Mapper..."

# Install packages via npm
if [ -f "package.json" ]; then
    npm ci --prefer-offline --no-audit --no-fund
else
    echo "Error: package.json not found"
    exit 1
fi

# Create assets/vendor directory
mkdir -p assets/vendor

# Function to copy package entry point from node_modules to assets/vendor
copy_package() {
    local pkg_name=$1
    local target_dir=$2
    
    # Handle scoped packages (e.g., @noble/curves/secp256k1)
    local source_dir=""
    if [[ $pkg_name == @* ]]; then
        # Scoped package - need to handle subpaths
        local base_pkg=$(echo "$pkg_name" | cut -d'/' -f1-2)
        source_dir="node_modules/$base_pkg"
    else
        # Regular package
        local base_pkg=$(echo "$pkg_name" | cut -d'/' -f1)
        source_dir="node_modules/$base_pkg"
    fi
    
    if [ ! -d "$source_dir" ]; then
        echo "  ⚠ Package not found: $pkg_name (searched in $source_dir)"
        return 1
    fi
    
    # Create target directory
    mkdir -p "$target_dir"
    
    # Try to find the entry point file
    local entry_point=""
    
    # Check package.json for exports/main/module fields
    if [ -f "$source_dir/package.json" ]; then
        # Try to parse package.json for the right entry point
        local main_file=$(node -e "const pkg = require('./$source_dir/package.json'); console.log(pkg.exports?.['.']?.import || pkg.module || pkg.main || 'index.js');" 2>/dev/null || echo "index.js")
        main_file=$(echo "$main_file" | xargs) # trim whitespace
        
        # Try various locations
        for candidate in "$source_dir/$main_file" "$source_dir/dist/$main_file" "$source_dir/esm/$main_file" "$source_dir/es/$main_file"; do
            if [ -f "$candidate" ]; then
                entry_point="$candidate"
                break
            fi
        done
    fi
    
    # Fallback: try common locations
    if [ -z "$entry_point" ]; then
        for candidate in "$source_dir/dist/index.js" "$source_dir/index.js" "$source_dir/esm/index.js" "$source_dir/es/index.js" "$source_dir/main.js"; do
            if [ -f "$candidate" ]; then
                entry_point="$candidate"
                break
            fi
        done
    fi
    
    # Final fallback: find any .js file
    if [ -z "$entry_point" ]; then
        entry_point=$(find "$source_dir" -name "*.js" -type f | grep -E "(index|main|dist.*index)" | head -1)
        if [ -z "$entry_point" ]; then
            entry_point=$(find "$source_dir" -maxdepth 2 -name "*.js" -type f | head -1)
        fi
    fi
    
    if [ -n "$entry_point" ] && [ -f "$entry_point" ]; then
        cp "$entry_point" "$target_dir/index.js"
        echo "  ✓ Copied $pkg_name"
        return 0
    else
        echo "  ✗ Failed to find entry point for $pkg_name"
        return 1
    fi
}

# Parse importmap.php to get packages that need installation
# We'll extract packages with 'version' but no 'path'
php -r "
require 'importmap.php';
\$map = include 'importmap.php';
\$packages = [];
foreach(\$map as \$name => \$config) {
    if (isset(\$config['version']) && !isset(\$config['path'])) {
        // Extract base package name (handle subpaths like 'quill/dist/quill.core.css')
        \$baseName = explode('/', \$name)[0];
        if (!isset(\$packages[\$baseName])) {
            \$packages[\$baseName] = \$config['version'];
        }
    }
}
foreach(\$packages as \$name => \$version) {
    echo \$name . PHP_EOL;
}
" > /tmp/importmap_packages.txt

# Copy each package
while IFS= read -r pkg_name; do
    if [ -n "$pkg_name" ]; then
        # Handle scoped packages and create proper directory structure
        target_dir="assets/vendor/$pkg_name"
        copy_package "$pkg_name" "$target_dir" || true
    fi
done < /tmp/importmap_packages.txt

# Also handle CSS files that might be in subpaths
# For CSS files, we need to copy the entire package structure
echo "Copying CSS assets..."

rm -f /tmp/importmap_packages.txt

echo "Done installing importmap packages"