report.js

// printReport takes a dictionary of pages and prints them
// to the console in a human-friendly way
function printReport(pages) {
    console.log('==========')
    console.log('REPORT')
    console.log('==========')
    const sortedPages = sortPages(pages)
    for (const sortedPage of sortedPages) {
      const url = sortedPage[0]
      const count = sortedPage[1]
      console.log(`Found ${count} internal links to ${url}`)
    }
  }
  
  // sortPages sorts a dictionary of pages
  // into a list of tuples (url, count)
  // with the highest counts first in the list
  function sortPages(pages) {
    // 2D array where the
    // inner array: [ url, count ]
    const pagesArr = Object.entries(pages)
    pagesArr.sort((pageA, pageB) => {
      if (pageB[1] === pageA[1]) {
        return pageA[0].localeCompare(pageB[0])
      }
      return pageB[1] - pageA[1]
    })
    return pagesArr
  }
  
  export { printReport, sortPages }