#!/bin/sh
# Simple cache busting script - adds version query params to all JS imports
# Only runs during Docker build, not during local development
# This keeps development simple (no tools needed) while ensuring production cache busting

VERSION="${1:-dev}"
SRC_DIR="${2:-/usr/share/nginx/html}"

echo "Adding cache busting (v=${VERSION}) to JS imports in ${SRC_DIR}/src..."

# Find all JS files and add version query param to relative imports
find "$SRC_DIR/src" -type f -name "*.js" | while read -r file; do
  # Skip if file doesn't exist
  [ ! -f "$file" ] && continue
  
  # Process file with sed to add version query params
  # Pattern: from './path.js' or from "../path.js" or import('./path.js')
  # Only match relative imports (./ or ../) ending in .js
  # Skip if already has query params (contains ?)
  
  # Handle single quote imports: from './path.js'
  sed -i.bak \
    -e "s|from '\\(\\.[./][^']*\\.js\\)'|from '\\1?v=${VERSION}'|g" \
    -e "s|from '\\(\\.[./][^']*\\.js\\)?[^']*'|from '\\1?v=${VERSION}'|g" \
    "$file"
  
  # Handle double quote imports: from "./path.js"
  sed -i.bak \
    -e "s|from \"\\(\\.[./][^\"]*\\.js\\)\"|from \"\\1?v=${VERSION}\"|g" \
    -e "s|from \"\\(\\.[./][^\"]*\\.js\\)?[^\"]*\"|from \"\\1?v=${VERSION}\"|g" \
    "$file"
  
  # Handle dynamic imports: import('./path.js')
  sed -i.bak \
    -e "s|import('\\(\\.[./][^']*\\.js\\)')|import('\\1?v=${VERSION}')|g" \
    -e "s|import('\\(\\.[./][^']*\\.js\\)?[^']*')|import('\\1?v=${VERSION}')|g" \
    -e "s|import(\"\\(\\.[./][^\"]*\\.js\\)\")|import(\"\\1?v=${VERSION}\")|g" \
    -e "s|import(\"\\(\\.[./][^\"]*\\.js\\)?[^\"]*\")|import(\"\\1?v=${VERSION}\")|g" \
    "$file"
  
  # Remove backup file
  rm -f "${file}.bak"
done

echo "Cache busting complete! All JS imports now include ?v=${VERSION}"