/**
 * Controller for firmware
 *
 * @module app/configuration
 * @exports firmwareController
 * @name firmwareController
 */

window.angular && (function (angular) {
    'use strict';

    angular
        .module('app.configuration')
        .controller('firmwareController', [
                '$scope',
                '$window',
                'APIUtils',
                'dataService',
                '$location',
                '$anchorScroll',
                'Constants',
                '$interval',
                '$q',
                '$timeout',
                function ($scope, $window, APIUtils, dataService, $location, $anchorScroll, Constants, $interval, $q, $timeout) {
                    $scope.dataService = dataService;

                    //Scroll to target anchor
                    $scope.gotoAnchor = function () {
                        $location.hash('upload');
                        $anchorScroll();
                    };

                    $scope.firmwares = [];
                    $scope.bmcActiveVersion = "";
                    $scope.hostActiveVersion = "";
                    $scope.display_error = false;
                    $scope.activate_confirm = false;
                    $scope.delete_image_id = "";
                    $scope.delete_image_version = "";
                    $scope.activate_image_id = "";
                    $scope.activate_image_version = "";
                    $scope.activate_image_type = "";
                    $scope.priority_image_id = "";
                    $scope.priority_image_version = "";
                    $scope.priority_from = -1;
                    $scope.priority_to = -1;
                    $scope.confirm_priority = false;
                    $scope.file_empty = true;
                    $scope.uploading = false;
                    $scope.upload_success = false;
                    $scope.activate = { reboot: true };
                    $scope.download_error_msg = "";
                    $scope.download_success = false;

                    var pollActivationTimer = undefined;
                    var pollDownloadTimer = undefined;

                    $scope.error = {
                        modal_title: "",
                        title: "",
                        desc: "",
                        type: "warning"
                    };

                    $scope.activateImage = function(imageId, imageVersion, imageType){
                        $scope.activate_image_id = imageId;
                        $scope.activate_image_version = imageVersion;
                        $scope.activate_image_type = imageType;
                        $scope.activate_confirm = true;
                    }

                    $scope.displayError = function(data){
                        $scope.error = data;
                        $scope.display_error = true;
                    }

                    function waitForActive(imageId){
                      var deferred = $q.defer();
                      var startTime = new Date();
                      pollActivationTimer = $interval(function(){
                        APIUtils.getActivation(imageId).then(function(state){
                          //@TODO: display an error message if image "Failed"
                          if(((/\.Active$/).test(state.data)) || ((/\.Failed$/).test(state.data))){
                            $interval.cancel(pollActivationTimer);
                            pollActivationTimer = undefined;
                            deferred.resolve(state);
                          }
                        }, function(error){
                          $interval.cancel(pollActivationTimer);
                          pollActivationTimer = undefined;
                          console.log(error);
                          deferred.reject(error);
                        });
                        var now = new Date();
                        if((now.getTime() - startTime.getTime()) >= Constants.TIMEOUT.ACTIVATION){
                          $interval.cancel(pollActivationTimer);
                          pollActivationTimer = undefined;
                          console.log("Time out activating image, " + imageId);
                          deferred.reject("Time out. Image did not activate in allotted time.");
                        }
                      }, Constants.POLL_INTERVALS.ACTIVATION);
                      return deferred.promise;
                    }

                    $scope.activateConfirmed = function(){
                        APIUtils.activateImage($scope.activate_image_id).then(function(state){
                          $scope.loadFirmwares();
                          return state;
                        }, function(error){
                          $scope.displayError({
                            modal_title: 'Error during activation call',
                            title: 'Error during activation call',
                            desc: JSON.stringify(error.data),
                            type: 'Error'
                          });
                        }).then(function(activationState){
                          waitForActive($scope.activate_image_id).then(function(state){
                            $scope.loadFirmwares();
                        }, function(error){
                          $scope.displayError({
                            modal_title: 'Error during image activation',
                            title: 'Error during image activation',
                            desc: JSON.stringify(error.data),
                            type: 'Error'
                          });
                        }).then(function(state){
                          if($scope.activate.reboot){
                            // Despite the new image being active, issue,
                            // https://github.com/openbmc/openbmc/issues/2764, can cause a
                            // system to brick, if the system reboots before the service to set
                            // the U-Boot variables is complete. Wait 10 seconds before rebooting
                            // to ensure this service is complete. This issue is fixed in newer images, but
                            // the user may be updating from an older image that does not that have this fix.
                            // TODO: remove this timeout after sufficient time has passed.
                            $timeout(function() {
                              APIUtils.bmcReboot(function(response){}, function(error){
                                $scope.displayError({
                                  modal_title: 'Error during BMC reboot',
                                  title: 'Error during BMC reboot',
                                  desc: JSON.stringify(error.data),
                                  type: 'Error'
                                });
                              });
                            }, 10000);
                          }
                        });
                      });
                      $scope.activate_confirm = false;
                    }

                    $scope.upload = function(){
                      if($scope.file) {
                        $scope.uploading = true;
                        $scope.upload_success = false;
                        APIUtils.uploadImage($scope.file).then(function(response){
                          $scope.file = "";
                          $scope.uploading = false;
                          $scope.upload_success = true;
                          $scope.loadFirmwares();
                        }, function(error){
                          $scope.uploading = false;
                          console.log(error);
                          $scope.displayError({
                            modal_title: 'Error during image upload',
                            title: 'Error during image upload',
                            desc: error,
                            type: 'Error'
                          });
                        });
                      }
                    }

                    //TODO: openbmc/openbmc#1691 Add support to return
                    //the id of the newly created image, downloaded via
                    //tftp. Polling the number of software objects is a
                    //near term solution.
                    function waitForDownload(){
                        var deferred = $q.defer();
                        var startTime = new Date();
                        pollDownloadTimer = $interval(function(){
                            var now = new Date();
                            if((now.getTime() - startTime.getTime()) >= Constants.TIMEOUT.DOWNLOAD_IMAGE){
                                $interval.cancel(pollDownloadTimer);
                                pollDownloadTimer = undefined;
                                deferred.reject(new Error(Constants.MESSAGES.POLL.DOWNLOAD_IMAGE_TIMEOUT));
                            }

                            APIUtils.getFirmwares().then(function(response){
                                if(response.data.length === $scope.firmwares.length + 1){
                                    $interval.cancel(pollDownloadTimer);
                                    pollDownloadTimer = undefined;
                                    deferred.resolve(response.data);
                                }
                            }, function(error){
                                $interval.cancel(pollDownloadTimer);
                                pollDownloadTimer = undefined;
                                deferred.reject(error);
                            });
                        }, Constants.POLL_INTERVALS.DOWNLOAD_IMAGE);

                        return deferred.promise;
                    }

                    $scope.download = function(){
                        $scope.download_success = false;
                        $scope.download_error_msg = "";
                        if(!$scope.download_host || !$scope.download_filename){
                          $scope.download_error_msg = "Field is required!";
                          return false;
                        }

                        $scope.downloading = true;
                        APIUtils.getFirmwares().then(function(response){
                            $scope.firmwares =  response.data;
                        }).then(function(){
                            return APIUtils.downloadImage($scope.download_host,
                                    $scope.download_filename).then(function(downloadStatus){
                                return downloadStatus;
                            });
                        }).then(function(downloadStatus){
                            return waitForDownload();
                        }).then(function(newFirmwareList){
                            $scope.download_host = "";
                            $scope.download_filename = "";
                            $scope.downloading = false;
                            $scope.download_success = true;
                            $scope.loadFirmwares();
                        }, function(error){
                            console.log(error);
                            $scope.displayError({
                                modal_title: 'Error during downloading Image',
                                title: 'Error during downloading Image',
                                desc: error,
                                type: 'Error'
                            });
                            $scope.downloading = false;
                        });
                    }

                    $scope.changePriority = function(imageId, imageVersion, from, to){
                        $scope.priority_image_id = imageId;
                        $scope.priority_image_version = imageVersion;
                        $scope.priority_from = from;
                        $scope.priority_to = to;
                        $scope.confirm_priority = true;
                    }

                    $scope.confirmChangePriority = function(){
                        $scope.loading = true;
                        APIUtils.changePriority($scope.priority_image_id, $scope.priority_to).then(function(response){
                            $scope.loading = false;
                            if(response.status == 'error'){
                                $scope.displayError({
                                    modal_title: response.data.description,
                                    title: response.data.description,
                                    desc: response.data.exception,
                                    type: 'Error'
                                });
                            }else{
                                $scope.loadFirmwares();
                            }
                        });
                        $scope.confirm_priority = false;
                    }
                    $scope.deleteImage = function(imageId, imageVersion){
                        $scope.delete_image_id = imageId;
                        $scope.delete_image_version = imageVersion;
                        $scope.confirm_delete = true;
                    }
                    $scope.confirmDeleteImage = function(){
                        $scope.loading = true;
                        APIUtils.deleteImage($scope.delete_image_id).then(function(response){
                            $scope.loading = false;
                            if(response.status == 'error'){
                                $scope.displayError({
                                    modal_title: response.data.description,
                                    title: response.data.description,
                                    desc: response.data.exception,
                                    type: 'Error'
                                });
                            }else{
                                $scope.loadFirmwares();
                            }
                        });
                        $scope.confirm_delete = false;
                    }
                    $scope.fileNameChanged = function(){
                        $scope.file_empty = false;
                    }

                    $scope.filters = {
                        bmc: {
                            imageType: 'BMC'
                        },
                        host: {
                            imageType: 'Host'
                        }
                    };

                    $scope.loadFirmwares = function(){
                        APIUtils.getFirmwares().then(function(result){
                           $scope.firmwares = result.data;
                           $scope.bmcActiveVersion = result.bmcActiveVersion;
                           $scope.hostActiveVersion = result.hostActiveVersion;
                        });
                    }

                    $scope.loadFirmwares();
                }
            ]
        );

})(angular);