// Assertion extractor, from file in current repo.
// Also sorts by ID (optional) and (optional) pulls in assertion text.
// First column is index of where it returns in results from Cheerio.
// Usage:
//  From the root of the repository, run:
//  % node testing/extractFile.js > testing/assertions.csv

const fs = require("fs");
const cheerio = require("cheerio");

const indexFileName = "index.html";
const extraAssertsFileName = "testing/inputs/extra-asserts.html";
const addAssertionTxt = true; // set true to add assertion text on last column
const sortData = true; // set to true to sort output data

const dataIndex = fs.readFileSync(indexFileName, "utf8");

// Load and parse HTML
const indexHTML = cheerio.load(dataIndex);

function cleanAssertionText(text) {
  return text
    .replace(/<\/?[a-zA-Z]+>/gi, " ") // convert markup to spaces
    .replace(/[\r\n]/gm, " ") // convert newlines and carriage returns to spaces
    .trim() // remove white space at beginning and end
    .replace(/[ \t]+/gm, " ") // convert multiple spaces/tabs to one space
    .replace(/"/gm, '""'); // escape quotes (for CSV) by doubling them
}

// Extract assertion and put them into an array of objects
var arr_data = [];
indexHTML(".rfc2119-assertion").each(function (i) {
  arr_data.push({
    html: indexHTML(this),
    index: i
  });
});

indexHTML(".rfc2119-default-assertion").each(function (i) {
  arr_data.push({
    html: indexHTML(this),
    index: i
  });
});

indexHTML(".rfc2119-table-assertion").each(function (i) {
  arr_data.push({
    html: indexHTML(this),
    index: i
  });
  // console.log({
  //     "html": indexHTML(this),
  //     "index": i
  // })
});

const data2 = fs.readFileSync(extraAssertsFileName, "utf8");
extraAsserts = cheerio.load(data2);
extraAsserts(".rfc2119-assertion").each(function (i) {
  arr_data.push({
    html: extraAsserts(this),
    index: i
  });
});

// Optionally sort assertions by ID
if (sortData) {
  // this is an in-place sort
  arr_data.sort((a, b) => {
    let sa = a.html.attr("id");
    let sb = b.html.attr("id");
    return (sb < sa) - (sb > sa); // case-sensitive order
  });
}

// Initialize headers in output CSV file
console.log(`"ID","Status"${addAssertionTxt ? ',"Assertion"' : ""}`);

// Output each row of array data into CSV, with optional assertion text
for (j = 0; j < arr_data.length; j++) {
  let element = arr_data[j];
  let id = element.html.attr("id");
  let text = element.html.text();
  let assertionTxt = "";
  if (addAssertionTxt) {
    assertionTxt = ',"' + cleanAssertionText(text.trim()) + '"';
  }
  console.log(`"${id}","null"${assertionTxt}`);
}