/* jshint -W041 */
/* jslint browser: true*/
/* global cordova,StatusBar,angular,console, Masonry, URI */

angular.module('zmApp.controllers').controller('zmApp.WizardCtrl', ['$scope', '$rootScope', '$ionicModal', 'ZMDataModel', '$ionicSideMenuDelegate', '$ionicHistory', '$state', '$ionicPopup', 'SecuredPopups', '$http', '$q', 'zm','$ionicLoading', function ($scope, $rootScope, $ionicModal, ZMDataModel, $ionicSideMenuDelegate, $ionicHistory, $state, $ionicPopup, SecuredPopups, $http, $q, zm, $ionicLoading) {
    $scope.openMenu = function () {
        $ionicSideMenuDelegate.toggleLeft();
    };


    //--------------------------------------------------------------------------
    // logs into ZM
    //--------------------------------------------------------------------------
   
    function login(u, zmu, zmp) {
        var d = $q.defer();

        $http({
                method: 'POST',
                //withCredentials: true,
                url: u,
                headers: {
                    'Content-Type': 'application/x-www-form-urlencoded',
                    'Accept': 'application/json',
                },
                transformRequest: function (obj) {
                    var str = [];
                    for (var p in obj)
                        str.push(encodeURIComponent(p) + "=" +
                            encodeURIComponent(obj[p]));
                    var params = str.join("&");
                    return params;
                },

                data: {
                    username: zmu,
                    password: zmp,
                    action: "login",
                    view: "console"
                }
            })
            .success(function (data, status, headers) {
                console.log("LOOKING FOR " + zm.loginScreenString);
                //console.log ("DATA RECEIVED " + JSON.stringify(data));
                if (data.indexOf(zm.loginScreenString) == -1) {
                    
                    $scope.wizard.loginURL = $scope.wizard.fqportal;
                    $scope.wizard.portalValidText = "Portal login was successful: "+$scope.wizard.loginURL;
                    $scope.wizard.portalColor = "#16a085";
                    d.resolve(true);
                    return d.promise;
                } else {
                    console.log("************ERROR");
                    $scope.wizard.portalValidText = "Portal login was unsuccessful";
                    $scope.wizard.portalColor = "#e74c3c";
                    d.reject(false);
                    return d.promise;
                }
            })
            .error (function (error) {
            console.log("************ERROR");
                    $scope.wizard.portalValidText = "Portal login was unsuccessful";
                    $scope.wizard.portalColor = "#e74c3c";
                    d.reject(false);
                    return d.promise;
            
        });

        return d.promise;

    }
    
    //--------------------------------------------------------------------------
    // we need a monitor ID to do cgi-bin detection - if you don't have 
    // monitors configured, cgi-bin won't work
    //--------------------------------------------------------------------------
    
    function getFirstMonitor()
    {
       var d=$q.defer(); $http.get($scope.wizard.apiURL+"/monitors.json")
        .then (function (success) {
            if (success.data.monitors.length > 0)
            {
               
                ZMDataModel.zmDebug("zmWizard - getFirstMonitor returned " + success.data.monitors[0].Monitor.Id); d.resolve(success.data.monitors[0].Monitor.Id);
                return d.promise;
                
            }
           else
           {
               d.reject(false);
               return d.promise;
           }
        },
        function (error) {
           d.reject(false);
            return d.promise;
        });
        return d.promise;
    }
    
    //--------------------------------------------------------------------------
    // Utility function - iterates through a list of URLs 
    //--------------------------------------------------------------------------
   
    function findFirstReachableUrl(urls, tail)
    {
        var d = $q.defer();
        if (urls.length > 0)
        {
            var t = "";
            if (tail) t = tail;
             //$ionicLoading.show({template: 'trying ' + urls[0].server});
            ZMDataModel.zmLog ("zmWizard test.." + urls[0]+t);
            return $http.get(urls[0]+t).then(function () {
                ZMDataModel.zmLog ("Success:  on "+ urls[0]+t);
                //$ionicLoading.hide();
                return urls[0];
            }, function(err) {
                ZMDataModel.zmLog ("zmWizard:Failed on "+ urls[0]+t+ " with error " + JSON.stringify(err));
                return findFirstReachableUrl(urls.slice(1),tail);
            });
        }
        else
        {
           // $ionicLoading.hide();
            ZMDataModel.zmLog ("zmWizard: findFirst returned no success");
            d.reject("No reachable URL");
            return d.promise;

        }

        return d.promise;

    }
    
    //--------------------------------------------------------------------------
    // tries to detect cgi-bin
    //--------------------------------------------------------------------------
   
    function detectcgi()
    {
        var d = $q.defer();
        var c = URI.parse($scope.wizard.loginURL);
        var p1,p2;
        p1 ="";
        p2 ="";
               
        if (c.userinfo)
            p1 = c.userinfo+"@";
        if (c.port)
            p2 = ":"+c.port;

        var baseUri = c.scheme+"://"+p1+c.host+p2;
        
        ZMDataModel.zmLog ("zmWizard CGI: baseURL is " +baseUri);
        
        var a3 = baseUri+"/zm/cgi-bin"; // ubuntu/debian
        var a2 = baseUri+"/cgi-bin-zm"; //fedora/centos/rhel
        var a1 = baseUri+"/cgi-bin"; // doofus
        var urls = [a1,a2,a3];
        
        
        ZMDataModel.getPathZms() // what does ZM have stored in PATH_ZMS?
        .then (function(data){
            urls.push (baseUri.trim()+data.trim());
             ZMDataModel.zmLog ("zmWizard: getPathZMS succeeded, adding "+baseUri+data.trim()+" to things to try");
            continueCgi(urls);
        },
        function (error) {
            ZMDataModel.zmLog ("zmWizard: getPathZMS failed, but continuing...");
            continueCgi(urls);
        });
        
        // Well, PATH_ZMS or not, lets call this function and brute force it
        function continueCgi (urls)
        {
            $ionicLoading.show({
                template: "discovering...",
                noBackdrop: true,
                duration: zm.httpTimeout
                });
            getFirstMonitor()
            .then (function (success){
                $ionicLoading.hide();
                var tail = "/nph-zms?mode=single&monitor="+success;
                if ($scope.wizard.useauth && $scope.wizard.usezmauth)
                {
                    tail+= "&user="+$scope.wizard.zmuser+"&pass="+$scope.wizard.zmpassword;
                }
                
                $ionicLoading.show({
                template: "discovering...",
                noBackdrop: true,
                duration: zm.httpTimeout
                });
                
                findFirstReachableUrl(urls,tail )
                .then (function (success) {
                    $ionicLoading.hide();
                    ZMDataModel.zmLog ("Valid cgi-bin found with: " + success);
                    $scope.wizard.streamingURL = success;
                    $scope.wizard.streamingValidText = "cgi-bin detection succeeded: "+$scope.wizard.streamingURL;
                    $scope.wizard.streamingColor = "#16a085";
                    d.resolve(true);
                    return d.promise;

                },
                function (error) {
                    $ionicLoading.hide();
                    console.log ("No cgi-bin found: " + error);
                    $scope.wizard.streamingValidText = "cgi-bin detection failed";
                    $scope.wizard.streamingColor = "#e74c3c";
                    d.reject (false);
                    return (d.promise);
                });
            },
            function (error){
                $ionicLoading.hide();
                $scope.wizard.streamingValidText = "cgi-bin detection failed. No configured monitor found.";
                    $scope.wizard.streamingColor = "#e74c3c";
                    d.reject (false);
                    return (d.promise);
                
            });
        }
        
       // https://server/zm/cgi-bin/nph-zms?mode=single&monitor=1&user=admin&pass=cc
        
        return d.promise;
        
    }
    
    
    //--------------------------------------------------------------------------
    // Finds an appropriate API to use
    //--------------------------------------------------------------------------
   
    function detectapi()
    {
        var u  = $scope.wizard.loginURL;
        var d  = $q.defer();
        var api1 = u+"/api" ;
        var c = URI.parse(u);
        
        // lets also try without the path
        var api2 = c.scheme+"://";
        if (c.userinfo) api2+= c.userinfo+"@";
        api2 +=c.host;
        if (c.port) api2+= ":"+c.port;
        api2+="/api";
        
        
        
        // lets try both /zm/api and /api. What else is there?
        var apilist = [api1, api2];
        
        findFirstReachableUrl(apilist, '/host/getVersion.json')
        .then (function (success) {
            ZMDataModel.zmLog ("Valid API response found with:" + success);
            $scope.wizard.apiURL = success;
            
            
            
            $scope.wizard.apiValidText = "API detection succeeded: "+$scope.wizard.apiURL;
            $scope.wizard.apiColor = "#16a085";
            d.resolve(true);
            return d.promise;
        },
        function (error) {
            console.log ("No APIs found: " + error);
            $scope.wizard.apiValidText = "API detection failed";
            $scope.wizard.apiColor = "#e74c3c";
            d.reject (false);
            return (d.promise);
        });
     
        return d.promise;
    }
    
    //--------------------------------------------------------------------------
    // logs out of ZM
    //--------------------------------------------------------------------------
   

    function logout(u) {
        var d = $q.defer();

        $http({
                method: 'POST',
                url: u,
                headers: {
                    'Content-Type': 'application/x-www-form-urlencoded',
                    'Accept': 'application/json',
                },
                transformRequest: function (obj) {
                    var str = [];
                    for (var p in obj)
                        str.push(encodeURIComponent(p) + "=" +
                            encodeURIComponent(obj[p]));
                    var params = str.join("&");
                    return params;
                },

                data: {
                    action: "logout",
                    view: "login"
                }
            })
            .then (function (success) {console.log ("ZMlogout success"); d.resolve(true); return d.promise;}, function (error) {console.log ("ZMlogout success");d.resolve(true); return d.promise;});
            

        return d.promise;

    }
    
    //--------------------------------------------------------------------------
    // clears all status updates in the verify results page - if you 
    // get back to it
    //--------------------------------------------------------------------------
   
    $scope.enterResults = function()
    {
        $scope.portalValidText = "";
        $scope.apiValidateText = "";
        $scope.streamingValidateText = "";
        $scope.wizard.fqportal = "";
        return true;
    };
    //--------------------------------------------------------------------------
    // tries to log into the portal and then discover api and cgi-bin
    //--------------------------------------------------------------------------

    $scope.exitValidate = function () {
        $rootScope.authSession = 'undefined';
        $rootScope.zmCookie = '';

        $scope.portalValidText = "";
        $scope.apiValidateText = "";
        $scope.streamingValidateText = "";
        $scope.wizard.fqportal = "";

        var d = $q.defer();

        var c = URI.parse($scope.wizard.portalurl);

        var b = "";
        if ($scope.wizard.useauth && $scope.wizard.usebasicauth) {
            b = $scope.wizard.basicuser + ":" + $scope.wizard.basicpassword + "@";
            console.log("B=" + b);
        }
        var u = c.scheme + "://" + b + c.host;
        if (c.port) u += ":" + c.port;
        if (c.path) u += c.path;


        if (u.slice(-1) == '/') {
            u = u.slice(0, -1);

        }

        $scope.wizard.fqportal = u;

        u = u + '/index.php';
        ZMDataModel.zmLog("Wizard: login url is " + u);

        // now lets login

        var zmu = "x";
        var zmp = "x";
        if ($scope.wizard.usezmauth) {
            zmu = $scope.wizard.zmuser;
            zmp = $scope.wizard.zmpassword;
        }

        // logout first for the adventurers amongst us who must
        // use it even after logging in
        ZMDataModel.zmLog("zmWizard: logging out");
        $ionicLoading.show({
                template: "cleaning up...",
                noBackdrop: true,
                duration: zm.httpTimeout
                });
        logout(u)
            .then(function (ans) {
                // login now
                $ionicLoading.hide();
                ZMDataModel.zmLog("zmWizard: logging in with " + u + " " + zmu + ":" + zmp);
            
                // The logic will be:
                // Login then do an api detect and cgi-detect together
                $ionicLoading.show({
                template: "discovering portal...",
                noBackdrop: true,
                duration: zm.httpTimeout
                });
                login(u, zmu, zmp)
                    .then(function (success) {
                            $ionicLoading.hide();
                            ZMDataModel.zmLog("zmWizard: login succeeded");
                            
                            // API Detection
                            $ionicLoading.show({
                            template: "discovering api...",
                            noBackdrop: true,
                            duration: zm.httpTimeout
                            });
                            detectapi()
                            .then (function (success) {
                                $ionicLoading.hide();
                                ZMDataModel.zmLog ("zmWizard: API succeeded");
                                
                                $ionicLoading.show({
                                template: "discovering cgi-bin...",
                                noBackdrop: true,
                                duration: zm.httpTimeout
                                });
                                // CGI detection
                                detectcgi ()
                                .then (function (success) {
                                    $ionicLoading.hide();
                                    // return true here because we want to progress
                                    return d.resolve(true);
                                },
                                function (error) {
                                    $ionicLoading.hide();
                                    // return true here because we want to progress
                                    return d.resolve(true);
                                });
                            },
                            function (error) {
                                $ionicLoading.hide();
                                ZMDataModel.zmLog("zmWizard: api failed");
                                
                                // return true here because we want to progress
                                return d.resolve(true);
                            });
                    
                            
                        },
                          
                        // if login failed, don't progress in the wizard
                        function (error) {
                            $ionicLoading.hide();
                            ZMDataModel.zmLog("zmWizard: login failed");
                            $scope.wizard.portalValidText = "Portal login was unsuccessful. Please go back and review your settings";
                            $scope.wizard.portalColor = "#e74c3c";
                            return d.resolve(true);

                        });


            }); //finally
        return d.promise;
    };


    //--------------------------------------------------------------------------
    // checks for  a protocol
    //--------------------------------------------------------------------------
    function checkscheme(url) {

        if ((!/^(f|ht)tps?:\/\//i.test(url)) && (url != "")) {
            return false;
        } else
            return true;
    }



    //--------------------------------------------------------------------------
    // exit validator for auth wizard
    //--------------------------------------------------------------------------

    $scope.exitAuth = function () {
        ZMDataModel.zmLog("Wizard: validating auth syntax");
        if ($scope.wizard.useauth) {
            if (!$scope.wizard.usezmauth && !$scope.wizard.usebasicauth) {
                $rootScope.zmPopup = SecuredPopups.show('show', {
                    title: 'Whoops!',
                    template: 'You need to enable at least one authentication mechanism',
                    buttons: [{
                        text: 'Ok'
                    }]

                });
                return false;
            }
            if ($scope.wizard.usezmauth) {
                if ((!$scope.wizard.zmuser) || (!$scope.wizard.zmpassword)) {
                    $rootScope.zmPopup = SecuredPopups.show('show', {
                        title: 'Whoops!',
                        template: 'Please enter a valid username and password for ZM auth',
                        buttons: [{
                            text: 'Ok'
                        }]

                    });
                    return false;
                }
            }

            if ($scope.wizard.usebasicauth) {
                if ((!$scope.wizard.basicuser) || (!$scope.wizard.basicpassword)) {
                    $rootScope.zmPopup = SecuredPopups.show('show', {
                        title: 'Whoops!',
                        template: 'Please enter a valid username and password for basic auth',
                        buttons: [{
                            text: 'Ok'
                        }]

                    });
                    return false;
                }
            }
        }
        return true;

    };

    //--------------------------------------------------------------------------
    // validator for portal url wizard
    //--------------------------------------------------------------------------

    $scope.exitPortal = function () {
        ZMDataModel.zmLog("Wizard: validating portal url syntax");

        if (!$scope.wizard.portalurl) {
            $rootScope.zmPopup = SecuredPopups.show('show', {
                title: 'Whoops!',
                template: 'Portal url cannot be empty',
                buttons: [{
                    text: 'Ok'
                }]

            });
            return false;
        }

        if (!checkscheme($scope.wizard.portalurl)) {
            $rootScope.zmPopup = SecuredPopups.show('show', {
                title: 'Whoops!',
                template: 'Please specify http:// or https:// in the url',
                buttons: [{
                    text: 'Ok'
                }]

            });
            return false;
        }

        $scope.wizard.portalurl = $scope.wizard.portalurl.toLowerCase().trim();

        ZMDataModel.zmLog("Wizard: stripped url:" + $scope.wizard.portalurl);

        var c = URI.parse($scope.wizard.portalurl);

        if (!c.scheme) {
            $rootScope.zmPopup = SecuredPopups.show('show', {
                title: 'Whoops!',
                template: 'URL seems invalid (no protocol detected)',
                buttons: [{
                    text: 'Ok'
                }]

            });
            return false;
        }


        if (c.userinfo) // basic auth stuff in here, take it out and put it into the next screen
        {
            $scope.wizard.useauth = true;
            $scope.wizard.usebasicauth = true;
            var barray = c.userinfo.split(":", 2);
            $scope.wizard.basicuser = barray[0];
            $scope.wizard.basicpassword = barray[1];
        }

        $scope.wizard.portalurl = c.scheme + "://";
        if (c.host) $scope.wizard.portalurl += c.host;
        if (c.port) $scope.wizard.portalurl += ":" + c.port;
        if (c.path) $scope.wizard.portalurl += c.path;
        ZMDataModel.zmLog("Wizard: normalized url:" + $scope.wizard.portalurl);
        return true;
    };

    //--------------------------------------------------------------------------
    // part of auth wizard - toggles display of auth components
    //--------------------------------------------------------------------------
    $scope.toggleAuth = function () {
        $scope.wizard.useauth = !$scope.wizard.useauth;
        if (!$scope.wizard.useauth) {
            $scope.wizard.usebasicauth = false;
            $scope.wizard.usezmauth = false;
        }
    };


    //--------------------------------------------------------------------------
    // global tip toggler for all wizard steps
    //--------------------------------------------------------------------------
    $scope.toggleTip = function () {
        $scope.wizard.tipshow = !$scope.wizard.tipshow;
        if ($scope.wizard.tipshow)
            $scope.wizard.tiptext = "hide tip";
        else
            $scope.wizard.tiptext = "show tip";
    };

    $scope.gotoLoginState = function()
    {
        $rootScope.wizard = angular.copy($scope.wizard);
        $ionicHistory.nextViewOptions({
                disableBack: true
            });
        $state.go("login", {"wizard":true});
    };

    //--------------------------------------------------------------------------
    // initial
    //--------------------------------------------------------------------------
    $scope.$on('$ionicView.beforeEnter', function () {
        //console.log("**VIEW ** Help Ctrl Entered");

        var monId = -1;
        $scope.wizard = {
            tipshow: false,
            tiptext: "show tip",
            useauth: false,
            usebasicauth: false,
            usezmauth: false,
            portalurl: "",
            basicuser: "",
            basicpassword: "",
            zmuser: "",
            zmpassword: "",
            ///////////////////////
            loginURL: "",
            apiURL: "",
            streamingURL: "",
            fqportal: "",
            portalValidText: "",
            portalColor: "",
            apiValidText: "",
            apiColor: "",
            streamingValidText: "",
            streamingColor: "",


        };

    });

}]);