/* Based off of https://github.com/larrymyers/jasmine-reporters/ */
/*global phantom:false, jasmine:false*/

// Unused right now. Logic needs to be brought onto the grunt side, not on the phantom side

(function() {
  "use strict";

  function elapsed(startTime, endTime) {
    return (endTime - startTime)/1000;
  }

  function ISODateString(d) {
    function pad(n) { return n < 10 ? '0'+n : n; }

    return d.getFullYear() + '-' +
      pad(d.getMonth()+1) + '-' +
      pad(d.getDate()) + 'T' +
      pad(d.getHours()) + ':' +
      pad(d.getMinutes()) + ':' +
      pad(d.getSeconds());
  }

  function trim(str) {
    return str.replace(/^\s+/, "" ).replace(/\s+$/, "" );
  }

  function escapeInvalidXmlChars(str) {
    return str.replace(/\&/g, "&amp;")
      .replace(/</g, "&lt;")
      .replace(/\>/g, "&gt;")
      .replace(/\"/g, "&quot;")
      .replace(/\'/g, "&apos;");
  }

  /**
   * Generates JUnit XML for the given spec run.
   * Allows the test results to be used in java based CI
   * systems like CruiseControl and Hudson.
   *
   * @param {string} savePath where to save the files
   * @param {boolean} consolidate whether to save nested describes within the
   *                  same file as their parent; default: true
   * @param {boolean} useDotNotation whether to separate suite names with
   *                  dots rather than spaces (ie "Class.init" not
   *                  "Class init"); default: true
   */
  function JUnitXmlReporter(savePath, consolidate, useDotNotation) {
    this.savePath = savePath || '';
    this.consolidate = typeof consolidate === 'undefined' ? true : consolidate;
    this.useDotNotation = typeof useDotNotation === 'undefined' ? true : useDotNotation;
  }

  JUnitXmlReporter.finished_at = null; // will be updated after all files have been written

  JUnitXmlReporter.prototype = {
    reportSpecStarting: function(spec) {
      spec.startTime = new Date();

      if (!spec.suite.startTime) {
        spec.suite.startTime = spec.startTime;
      }
    },

    reportSpecResults: function(spec) {
      var results = spec.results();
      spec.didFail = !results.passed();
      spec.duration = elapsed(spec.startTime, new Date());
      spec.output = '<testcase classname="' + this.getFullName(spec.suite) +
        '" name="' + escapeInvalidXmlChars(spec.description) + '" time="' + spec.duration + '">';

      var failure = "";
      var failures = 0;
      var resultItems = results.getItems();
      for (var i = 0; i < resultItems.length; i++) {
        var result = resultItems[i];

        if (result.type === 'expect' && result.passed && !result.passed()) {
          failures += 1;
          failure += (failures + ": " + escapeInvalidXmlChars(result.message) + " ");
        }
      }
      if (failure) {
        spec.output += "<failure>" + trim(failure) + "</failure>";
      }
      spec.output += "</testcase>";
    },

    reportSuiteResults: function(suite) {
      var results = suite.results();
      var specs = suite.specs();
      var specOutput = "";
      // for JUnit results, let's only include directly failed tests (not nested suites')
      var failedCount = 0;

      suite.status = results.passed() ? 'Passed.' : 'Failed.';
      if (results.totalCount === 0) { // todo: change this to check results.skipped
        suite.status = 'Skipped.';
      }

      // if a suite has no (active?) specs, reportSpecStarting is never called
      // and thus the suite has no startTime -- account for that here
      suite.startTime = suite.startTime || new Date();
      suite.duration = elapsed(suite.startTime, new Date());

      for (var i = 0; i < specs.length; i++) {
        failedCount += specs[i].didFail ? 1 : 0;
        specOutput += "\n  " + specs[i].output;
      }
      suite.output = '\n<testsuite name="' + this.getFullName(suite) +
        '" errors="0" tests="' + specs.length + '" failures="' + failedCount +
        '" time="' + suite.duration + '" timestamp="' + new ISODateString(suite.startTime) + '">';
      suite.output += specOutput;
      suite.output += "\n</testsuite>";
    },

    reportRunnerResults: function(runner) {
      var suites = runner.suites();
      for (var i = 0; i < suites.length; i++) {
        var suite = suites[i];
        var fileName = 'TEST-' + this.getFullName(suite, true) + '.xml';
        var output = '<?xml version="1.0" encoding="UTF-8" ?>';
        // if we are consolidating, only write out top-level suites
        if (this.consolidate && suite.parentSuite) {
          continue;
        }
        else if (this.consolidate) {
          output += "\n<testsuites>";
          output += this.getNestedOutput(suite);
          output += "\n</testsuites>";
          this.writeFile(this.savePath + fileName, output);
        }
        else {
          output += suite.output;
          this.writeFile(this.savePath + fileName, output);
        }
      }
      // When all done, make it known on JUnitXmlReporter
      JUnitXmlReporter.finished_at = (new Date()).getTime();
      phantom.sendMessage('jasmine.done.JUnitReporter');
    },

    getNestedOutput: function(suite) {
      var output = suite.output;
      for (var i = 0; i < suite.suites().length; i++) {
        output += this.getNestedOutput(suite.suites()[i]);
      }
      return output;
    },

    writeFile: function(filename, text) {
      phantom.sendMessage('jasmine.writeFile','junit',filename,text);
    },

    getFullName: function(suite, isFilename) {
      var fullName;
      if (this.useDotNotation) {
        fullName = suite.description;
        for (var parentSuite = suite.parentSuite; parentSuite; parentSuite = parentSuite.parentSuite) {
          fullName = parentSuite.description + '.' + fullName;
        }
      }
      else {
        fullName = suite.getFullName();
      }

      // Either remove or escape invalid XML characters
      if (isFilename) {
        return fullName.replace(/[^\w]/g, "");
      }
      return escapeInvalidXmlChars(fullName);
    },

    log: function(str) {
      var console = jasmine.getGlobal().console;

      if (console && console.log) {
        console.log(str);
      }
    }
  };

  jasmine.reporters = jasmine.reporters || {};

  jasmine.reporters.JUnitXmlReporter = JUnitXmlReporter;
  jasmine.getEnv().addReporter( new JUnitXmlReporter() );
}());