"use strict";
var vows = require('vows')
, assert = require('assert')
, levels = require('../lib/levels');

function MockLogger() {

  var that = this;
  this.messages = [];
  
  this.log = function(level, message, exception) {
    that.messages.push({ level: level, message: message });
  };

  this.isLevelEnabled = function(level) {
    return level.isGreaterThanOrEqualTo(that.level);
  };
  
  this.level = levels.TRACE;

}

function MockRequest(remoteAddr, method, originalUrl) {

  this.socket = { remoteAddress: remoteAddr };
  this.originalUrl = originalUrl;
  this.method = method;
  this.httpVersionMajor = '5';
  this.httpVersionMinor = '0';
  this.headers = {};

}

function MockResponse(statusCode) {

  this.statusCode = statusCode;
  
  this.end = function(chunk, encoding) {
    
  };

}

vows.describe('log4js connect logger').addBatch({
  'getConnectLoggerModule': {
    topic: function() {
      var clm = require('../lib/connect-logger');
      return clm;
    },
    
    'should return a "connect logger" factory' : function(clm) {
      assert.isObject(clm);
    },

    'take a log4js logger and return a "connect logger"' : {
      topic: function(clm) {
        var ml = new MockLogger();
        var cl = clm.connectLogger(ml);
        return cl;
      },
      
      'should return a "connect logger"': function(cl) {
        assert.isFunction(cl);
      }
    },
    
    'log events' : {
      topic: function(clm) {
        var ml = new MockLogger();
        var cl = clm.connectLogger(ml);
        var req = new MockRequest('my.remote.addr', 'GET', 'http://url');
        var res = new MockResponse(200);
        cl(req, res, function() { });
        res.end('chunk', 'encoding');
        return ml.messages;
      },

      'check message': function(messages) {
        assert.isArray(messages);
        assert.equal(messages.length, 1);
        assert.ok(levels.INFO.isEqualTo(messages[0].level));
        assert.include(messages[0].message, 'GET');
        assert.include(messages[0].message, 'http://url');
        assert.include(messages[0].message, 'my.remote.addr');
        assert.include(messages[0].message, '200');
      }
    },

    'log events with level below logging level' : {
      topic: function(clm) {
        var ml = new MockLogger();
        ml.level = levels.FATAL;
        var cl = clm.connectLogger(ml);
        var req = new MockRequest('my.remote.addr', 'GET', 'http://url');
        var res = new MockResponse(200);
        cl(req, res, function() { });
        res.end('chunk', 'encoding');
        return ml.messages;
      },
      
      'check message': function(messages) {
        assert.isArray(messages);
        assert.isEmpty(messages);
      }
    },

    'log events with non-default level and custom format' : {
      topic: function(clm) {
        var ml = new MockLogger();
        ml.level = levels.INFO;
        var cl = clm.connectLogger(ml, { level: levels.INFO, format: ':method :url' } );
        var req = new MockRequest('my.remote.addr', 'GET', 'http://url');
        var res = new MockResponse(200);
        cl(req, res, function() { });
        res.end('chunk', 'encoding');
        return ml.messages;
      },
      
      'check message': function(messages) {
        assert.isArray(messages);
        assert.equal(messages.length, 1);
        assert.ok(levels.INFO.isEqualTo(messages[0].level));
        assert.equal(messages[0].message, 'GET http://url');
      }
    }
    
  }
}).export(module);