var helper = require('./helper.js');
var extraction = require('./extraction.js');
var async = require("async");
var sanitizeHtml = require("sanitize-html");
var sanitizeHtml = require("sanitize-html");
var firefox = require("selenium-webdriver/firefox");
var {
  Builder,
  By,
  Key
} = require("selenium-webdriver");
var path = require('path');
var engine = require('./engine.js')

if (process.platform == 'win32') {
  var package_path = path.join(path.dirname(require.resolve("geckodriver")), '..')
  process.env['PATH'] = process.env['PATH'] + ';' + package_path
}

async function find_username_advanced(req) {
  const time = new Date();
  const functions = [];
  var all_results = []
  helper.websites_entries.forEach((site) => {
    if ("status" in site) {
      if (site.status == "bad") {
        return Promise.resolve();
      }
    }
    if (site.selected == "true" && site.detections.length > 0 && !helper.global_lock.includes(req.body.uuid)) {
      functions.push(find_username_site.bind(null, req.body.uuid, req.body.string, req.body.option, site));
    }
  });
  var results = await async.parallelLimit(functions, 8);
  helper.verbose && console.log(`Total time ${new Date() - time}`);
  results = results.filter(item => item)
  return results.sort((first, second) => {
    return helper.compare_objects(first, second, 'rate')
  })
}

async function find_username_site(uuid, username, options, site) {
  return new Promise(async (resolve, reject) => {
    if (!helper.global_lock.includes(uuid)) {
      helper.log_to_file_queue(uuid, "[Checking] " + helper.get_site_from_url(site.url))
      let driver = undefined
      if (helper.grid_url == "") {
        driver = new Builder()
          .forBrowser("firefox")
          .setFirefoxOptions(new firefox.Options().headless().windowSize({
            width: 640,
            height: 480
          }))
          .build();
      } else {
        driver = new Builder()
          .forBrowser("firefox")
          .setFirefoxOptions(new firefox.Options().headless().windowSize({
            width: 640,
            height: 480
          }))
          .usingServer(helper.grid_url)
          .build();
      }

      try {

        var timeouts = {
          implicit: 0,
          pageLoad: 5000,
          script: 5000
        };

        var timeout = (site.timeout != 0) ? site.timeout * 1000 : 5000;
        var implicit = (site.implicit != 0) ? site.implicit * 1000 : 0;

        timeouts = {
          implicit: implicit,
          pageLoad: timeout,
          script: timeout
        };

        helper.verbose && console.log(timeouts)

        var source = "";
        var screen_shot = "";
        var language = "unavailable"
        var text_only = "unavailable";
        var title = "unavailable";
        var link = site.url.replace("{username}", username);
        //await driver.manage().setTimeouts(timeouts);
        await driver.get(link);;
        source = await driver.getPageSource();
        screen_shot = await driver.takeScreenshot();
        title = await driver.getTitle();
        text_only = await driver.findElement(By.tagName("body")).getText();
        await driver.quit()
        var [temp_profile, temp_detected, detections_count] = await engine.detect("slow", uuid, username, options, site, source, text_only, screen_shot)
        if (options.includes("ShowUserProfilesSlow")) {
          temp_profile["image"] = "data:image/png;base64,{image}".replace("{image}", screen_shot);
        }
        if (temp_profile.found >= helper.detection_level[helper.detection_level.current].found && detections_count >= helper.detection_level[helper.detection_level.current].count) {
          temp_profile.good = "true"
          try {
            language = helper.get_language_by_parsing(source)
            if (language == "unavailable") {
              language = helper.get_language_by_guessing(text_only)
            }
          } catch (err) {
            helper.verbose && console.log(err);
          }

          temp_profile.text = sanitizeHtml(text_only);
          temp_profile.title = sanitizeHtml(title);
          temp_profile.language = language

          temp_profile.text = temp_profile.text.replace(/(\r\n|\n|\r)/gm, "");
          temp_profile.title = temp_profile.title.replace(/(\r\n|\n|\r)/gm, "");

          if (helper.strings_titles.test(temp_profile.title) || helper.strings_pages.test(temp_profile.text)) {
            temp_profile.title = "filtered"
            temp_profile.text = "filtered"
          }

          if (temp_profile.good == "true") {
            var temp_value = ((temp_profile["found"] / detections_count) * 100).toFixed(2)
            temp_profile.rate = "%" + temp_value;
            if (temp_value >= 100.00) {
              temp_profile.status = "good"
            } else if (temp_value >= 50.00 && temp_value < 100.00) {
              temp_profile.status = "maybe"
            } else {
              temp_profile.status = "bad"
            }
          }

          if (temp_profile.status == "good") {
            if (options.includes("ExtractPatterns")) {
              var temp_extracted_list = []
              temp_extracted_list = await extraction.extract_patterns(site, source)
              if (temp_extracted_list.length > 0) {
                temp_profile.extracted = temp_extracted_list
              }
            }
            if (options.includes("ExtractMetadata")) {
              var temp_metadata_list = []
              temp_metadata_list = await extraction.extract_metadata(site, source)
              if (temp_metadata_list.length > 0) {
                temp_profile.metadata = temp_metadata_list
              }
            }
          }

          ["title", "language", "text", "type", "metadata", "extracted"].forEach((item) => {
            if (temp_profile[item] == "") {
              temp_profile[item] = "unavailable"
            }
          });

          temp_profile.link = site.url.replace("{username}", username);
          temp_profile.type = site.type
          resolve(temp_profile);
        } else if (temp_profile.image != "") {
          temp_profile.text = "unavailable";
          temp_profile.title = "unavailable";
          temp_profile.language = "unavailable"
          temp_profile.rate = "%00.0"
          temp_profile.link = site.url.replace("{username}", username);
          temp_profile.type = site.type
          resolve(temp_profile);
        } else {
          resolve(undefined)
        }
      } catch (err) {
        if (driver !== undefined) {
          try {
            await driver.quit()
          } catch (err) {
            helper.verbose && console.log("Driver Session Issue")
          }
        }
        resolve(undefined)
      }
    }
    else{
      resolve(undefined)
    }
  });
}

module.exports = {
  find_username_advanced
}