"use strict";
var os = require("os");
var logger_1 = require("./logger");
var logger = new logger_1.Logger('testLogger');
var TaskLogger = (function () {
    /**
     * Log output such that metadata are appended.
     * Calling log(data) will not flush to console until you call flush()
     *
     * @constructor
     * @param {object} task Task that is being reported.
     * @param {number} pid PID of process running the task.
     */
    function TaskLogger(task, pid) {
        this.task = task;
        this.pid = pid;
        this.buffer = '';
        this.insertTag = true;
        this.logHeader_();
    }
    /**
     * Log the header for the current task including information such as
     * PID, browser name/version, task Id, specs being run.
     *
     * @private
     */
    TaskLogger.prototype.logHeader_ = function () {
        var output = 'PID: ' + this.pid + os.EOL;
        if (this.task.specs.length === 1) {
            output += 'Specs: ' + this.task.specs.toString() + os.EOL + os.EOL;
        }
        this.log(output);
    };
    /**
     * Prints the contents of the buffer without clearing it.
     */
    TaskLogger.prototype.peek = function () {
        if (this.buffer) {
            // Flush buffer if nonempty
            logger.info(os.EOL + '------------------------------------' + os.EOL);
            logger.info(this.buffer);
            logger.info(os.EOL);
        }
    };
    /**
     * Flushes the buffer to stdout.
     */
    TaskLogger.prototype.flush = function () {
        if (this.buffer) {
            this.peek();
            this.buffer = '';
        }
    };
    /**
     * Log the data in the argument such that metadata are appended.
     * The data will be saved to a buffer until flush() is called.
     *
     * @param {string} data
     */
    TaskLogger.prototype.log = function (data) {
        var tag = '[';
        var capabilities = this.task.capabilities;
        tag += (capabilities.logName) ? capabilities.logName :
            (capabilities.browserName) ? capabilities.browserName : '';
        tag += (capabilities.version) ? (' ' + capabilities.version) : '';
        tag += (capabilities.platform) ? (' ' + capabilities.platform) : '';
        tag += (capabilities.logName && capabilities.count < 2) ? '' : ' #' + this.task.taskId;
        tag += '] ';
        data = data.toString();
        for (var i = 0; i < data.length; i++) {
            if (this.insertTag) {
                this.insertTag = false;
                // This ensures that the '\x1B[0m' appears before the tag, so that
                // data remains correct when color is not processed.
                // See https://github.com/angular/protractor/pull/1216
                if (data[i] === '\x1B' && data.substring(i, i + 4) === '\x1B[0m') {
                    this.buffer += ('\x1B[0m' + tag);
                    i += 3;
                    continue;
                }
                this.buffer += tag;
            }
            if (data[i] === '\n') {
                this.insertTag = true;
            }
            this.buffer += data[i];
        }
    };
    return TaskLogger;
}());
exports.TaskLogger = TaskLogger;