/**
 * @fileoverview jUnit Reporter
 * @author Jamund Ferguson
 */
"use strict";

var lodash = require("lodash");

//------------------------------------------------------------------------------
// Helper Functions
//------------------------------------------------------------------------------

/**
 * Returns the severity of warning or error
 * @param {object} message message object to examine
 * @returns {string} severity level
 * @private
 */
function getMessageType(message) {
    if (message.fatal || message.severity === 2) {
        return "Error";
    } else {
        return "Warning";
    }
}

//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------

module.exports = function(results) {

    var output = "";

    output += "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
    output += "<testsuites>\n";

    results.forEach(function(result) {

        var messages = result.messages;

        if (messages.length) {
            output += "<testsuite package=\"org.eslint\" time=\"0\" tests=\"" + messages.length + "\" errors=\"" + messages.length + "\" name=\"" + result.filePath + "\">\n";
        }

        messages.forEach(function(message) {
            var type = message.fatal ? "error" : "failure";

            output += "<testcase time=\"0\" name=\"org.eslint." + (message.ruleId || "unknown") + "\">";
            output += "<" + type + " message=\"" + lodash.escape(message.message || "") + "\">";
            output += "<![CDATA[";
            output += "line " + (message.line || 0) + ", col ";
            output += (message.column || 0) + ", " + getMessageType(message);
            output += " - " + lodash.escape(message.message || "");
            output += (message.ruleId ? " (" + message.ruleId + ")" : "");
            output += "]]>";
            output += "</" + type + ">";
            output += "</testcase>\n";
        });

        if (messages.length) {
            output += "</testsuite>\n";
        }

    });

    output += "</testsuites>\n";

    return output;
};