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

const xmlEscape = require("../util/xml-escape");

//------------------------------------------------------------------------------
// 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) {

    let output = "";

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

    results.forEach(function(result) {

        const 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) {
            const type = message.fatal ? "error" : "failure";

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

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

    });

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

    return output;
};