/* eslint-disable
    handle-callback-err,
    no-return-assign,
    no-self-compare,
    no-undef,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS101: Remove unnecessary use of Array.from
 * DS102: Remove unnecessary code created because of implicit returns
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */

/* COMMON CODE */

/**
 * Provides a set of common callback methods to the $scope parameter. These methods are used
 * in the various spaces' admin controllers.
 *
 * Provides :
 *  - $scope.submited(content)
 *  - $scope.cancel()
 *  - $scope.fileinputClass(v)
 *  - $scope.addFile()
 *  - $scope.deleteFile(file)
 *
 * Requires :
 *  - $scope.space.space_files_attributes = []
 *  - $state (Ui-Router) [ 'app.public.spaces_list' ]
*/
class SpacesController {
  constructor ($scope, $state) {
    /*
     * For use with ngUpload (https://github.com/twilson63/ngUpload).
     * Intended to be the callback when the upload is done: any raised error will be stacked in the
     * $scope.alerts array. If everything goes fine, the user is redirected to the spaces list.
     * @param content {Object} JSON - The upload's result
     */
    $scope.submited = function (content) {
      if ((content.id == null)) {
        $scope.alerts = [];
        angular.forEach(content, function (v, k) {
          angular.forEach(v, function (err) {
            $scope.alerts.push({
              msg: k + ': ' + err,
              type: 'danger'
            });
          });
        });
      } else {
        $state.go('app.public.spaces_list');
      }
    };

    /**
     * Changes the current user's view, redirecting him to the spaces list
     */
    $scope.cancel = function () { $state.go('app.public.spaces_list'); };

    /**
     * For use with 'ng-class', returns the CSS class name for the uploads previews.
     * The preview may show a placeholder or the content of the file depending on the upload state.
     * @param v {*} any attribute, will be tested for truthiness (see JS evaluation rules)
     */
    $scope.fileinputClass = function (v) {
      if (v) {
        return 'fileinput-exists';
      } else {
        return 'fileinput-new';
      }
    };

    /**
     * This will create a single new empty entry into the space attachments list.
     */
    $scope.addFile = function () { $scope.space.space_files_attributes.push({}); };

    /**
     * This will remove the given file from the space attachments list. If the file was previously uploaded
     * to the server, it will be marked for deletion on the server. Otherwise, it will be simply truncated from
     * the attachments array.
     * @param file {Object} the file to delete
     */
    $scope.deleteFile = function (file) {
      const index = $scope.space.space_files_attributes.indexOf(file);
      if (file.id != null) {
        return file._destroy = true;
      } else {
        return $scope.space.space_files_attributes.splice(index, 1);
      }
    };
  }
}

/**
 * Controller used in the public listing page, allowing everyone to see the list of spaces
 */
Application.Controllers.controller('SpacesController', ['$scope', '$state', 'spacesPromise', 'AuthService', '_t', 'Member', 'uiTourService', 'settingsPromise',
  function ($scope, $state, spacesPromise, AuthService, _t, Member, uiTourService, settingsPromise) {
    /* PUBLIC SCOPE */

    // Retrieve the list of spaces
    $scope.spaces = spacesPromise;

    /**
     * Redirect the user to the space details page
     */
    $scope.showSpace = function (space) { $state.go('app.public.space_show', { id: space.slug }); };

    /**
     * Callback to book a reservation for the current space
     */
    $scope.reserveSpace = function (space) { $state.go('app.logged.space_reserve', { id: space.slug }); };

    // Default: we show only enabled spaces
    $scope.spaceFiltering = 'enabled';

    // Available options for filtering spaces by status
    $scope.filterDisabled = [
      'enabled',
      'disabled',
      'all'
    ];

    /**
     * Setup the feature-tour for the spaces page. (admins only)
     * This is intended as a contextual help (when pressing F1)
     */
    $scope.setupSpacesTour = function () {
      // setup the tour for admins only
      if (AuthService.isAuthorized(['admin', 'manager'])) {
        // get the tour defined by the ui-tour directive
        const uitour = uiTourService.getTourByName('spaces');
        if (AuthService.isAuthorized('admin')) {
        uitour.createStep({
          selector: 'body',
          stepId: 'welcome',
          order: 0,
          title: _t('app.public.tour.spaces.welcome.title'),
          content: _t('app.public.tour.spaces.welcome.content'),
          placement: 'bottom',
          orphan: true
        });
        if ($scope.spaces.length > 0) {
          uitour.createStep({
            selector: '.spaces-list .show-button',
            stepId: 'view',
            order: 1,
            title: _t('app.public.tour.spaces.view.title'),
            content: _t('app.public.tour.spaces.view.content'),
            placement: 'top'
          });
        }
        } else {
          uitour.createStep({
            selector: 'body',
            stepId: 'welcome_manager',
            order: 0,
            title: _t('app.public.tour.spaces.welcome_manager.title'),
            content: _t('app.public.tour.spaces.welcome_manager.content'),
            placement: 'bottom',
            orphan: true
          });
        }
        if ($scope.spaces.length > 0) {
          uitour.createStep({
            selector: '.spaces-list .reserve-button',
            stepId: 'reserve',
            order: 2,
            title: _t('app.public.tour.spaces.reserve.title'),
            content: _t('app.public.tour.spaces.reserve.content'),
            placement: 'top'
          });
        }
        uitour.createStep({
          selector: 'body',
          stepId: 'conclusion',
          order: 3,
          title: _t('app.public.tour.conclusion.title'),
          content: _t('app.public.tour.conclusion.content'),
          placement: 'bottom',
          orphan: true
        });
        // on tour end, save the status in database
        uitour.on('ended', function () {
          if (uitour.getStatus() === uitour.Status.ON && $scope.currentUser.profile.tours.indexOf('spaces') < 0) {
            Member.completeTour({ id: $scope.currentUser.id }, { tour: 'spaces' }, function (res) {
              $scope.currentUser.profile.tours = res.tours;
            });
          }
        });
        // if the user has never seen the tour, show him now
        if (settingsPromise.feature_tour_display !== 'manual' && $scope.currentUser.profile.tours.indexOf('spaces') < 0) {
          uitour.start();
        }
      }
    }

    /* PRIVATE SCOPE */

    /**
     * Kind of constructor: these actions will be realized first when the controller is loaded
     */
    const initialize = function () {}

    // !!! MUST BE CALLED AT THE END of the controller
    return initialize();
  }
]);

/**
 * Controller used in the space creation page (admin)
 */
Application.Controllers.controller('NewSpaceController', ['$scope', '$state', 'CSRF', function ($scope, $state, CSRF) {
  CSRF.setMetaTags();

  // API URL where the form will be posted
  $scope.actionUrl = '/api/spaces/';

  // Form action on the above URL
  $scope.method = 'post';

  // default space parameters
  $scope.space =
    { space_files_attributes: [] };

  // Using the SpacesController
  return new SpacesController($scope, $state);
}]);

/**
 * Controller used in the space edition page (admin)
 */
Application.Controllers.controller('EditSpaceController', ['$scope', '$state', '$stateParams', 'spacePromise', 'CSRF',
  function ($scope, $state, $stateParams, spacePromise, CSRF) {
    CSRF.setMetaTags();

    // API URL where the form will be posted
    $scope.actionUrl = `/api/spaces/${$stateParams.id}`;

    // Form action on the above URL
    $scope.method = 'put';

    // space to modify
    $scope.space = spacePromise;

    // Using the SpacesController
    return new SpacesController($scope, $state);
  }]);

Application.Controllers.controller('ShowSpaceController', ['$scope', '$state', 'spacePromise', '_t', 'dialogs', 'growl',
  function ($scope, $state, spacePromise, _t, dialogs, growl) {
  // Details of the space witch id/slug is provided in the URL
    $scope.space = spacePromise;

    /**
   * Callback to book a reservation for the current space
   * @param event {Object} see https://docs.angularjs.org/guide/expression#-event-
   */
    $scope.reserveSpace = function (event) {
      event.preventDefault();
      return $state.go('app.logged.space_reserve', { id: $scope.space.slug });
    };

    /**
   * Callback to book a reservation for the current space
   * @param event {Object} see https://docs.angularjs.org/guide/expression#-event-
   */
    $scope.deleteSpace = function (event) {
      event.preventDefault();
      // check the permissions
      if ($scope.currentUser.role !== 'admin') {
        return console.error(_t('app.public.space_show.unauthorized_operation'));
      } else {
        return dialogs.confirm({
          resolve: {
            object () {
              return {
                title: _t('app.public.space_show.confirmation_required'),
                msg: _t('app.public.space_show.do_you_really_want_to_delete_this_space')
              };
            }
          }
        }
        , function () { // deletion confirmed
        // delete the machine then redirect to the machines listing
          $scope.space.$delete(
            function () {
              $state.go('app.public.spaces_list');
            },
            function (error) {
              growl.warning(_t('app.public.space_show.the_space_cant_be_deleted_because_it_is_already_reserved_by_some_users'));
              console.error(error);
            }
          );
        });
      }
    };
  }]);

/**
 * Controller used in the spaces reservation agenda page.
 * This controller is very similar to the machine reservation controller with one major difference: here, there is many places
 * per slots.
 */

Application.Controllers.controller('ReserveSpaceController', ['$scope', '$stateParams', 'Auth', '$timeout', 'Availability', 'Member', 'plansPromise', 'groupsPromise', 'settingsPromise', 'spacePromise', '_t', 'uiCalendarConfig', 'CalendarConfig',
  function ($scope, $stateParams, Auth, $timeout, Availability, Member, plansPromise, groupsPromise, settingsPromise, spacePromise, _t, uiCalendarConfig, CalendarConfig) {
    /* PRIVATE STATIC CONSTANTS */

    // Color of the selected event backgound
    const SELECTED_EVENT_BG_COLOR = '#ffdd00';

    // Slot free to be booked
    const FREE_SLOT_BORDER_COLOR = '<%= AvailabilityHelper::SPACE_COLOR %>';

    // Slot with reservation from current user
    const RESERVED_SLOT_BORDER_COLOR = '<%= AvailabilityHelper::IS_RESERVED_BY_CURRENT_USER %>';

    /* PUBLIC SCOPE */

    // bind the spaces availabilities with full-Calendar events
    $scope.eventSources = [];

    // the user to deal with, ie. the current user for non-admins
    $scope.ctrl =
      { member: {} };

    // list of plans, classified by group
    $scope.plansClassifiedByGroup = [];
    $scope.groups = groupsPromise;
    $scope.plans = plansPromise;
    for (let group of Array.from(groupsPromise)) {
      const groupObj = { id: group.id, name: group.name, plans: [] };
      for (let plan of Array.from(plansPromise)) {
        if (plan.group_id === group.id) { groupObj.plans.push(plan); }
      }
      $scope.plansClassifiedByGroup.push(groupObj);
    }

    // mapping of fullCalendar events.
    $scope.events = {
      reserved: [], // Slots that the user wants to book
      modifiable: null, // Slot that the user wants to change
      placable: null, // Destination slot for the change
      paid: [], // Slots that were just booked by the user (transaction ok)
      moved: null // Slots that were just moved by the user (change done) -> {newSlot:* oldSlot: *}
    };

    // the moment when the slot selection changed for the last time, used to trigger changes in the cart
    $scope.selectionTime = null;

    // the last clicked event in the calendar
    $scope.selectedEvent = null;

    // indicates the state of the current view : calendar or plans information
    $scope.plansAreShown = false;

    // will store the user's plan if he chose to buy one
    $scope.selectedPlan = null;

    // the moment when the plan selection changed for the last time, used to trigger changes in the cart
    $scope.planSelectionTime = null;

    // Selected space
    $scope.space = spacePromise;

    // fullCalendar (v2) configuration
    $scope.calendarConfig = CalendarConfig({
      minTime: moment.duration(moment(settingsPromise.booking_window_start).format('HH:mm:ss')),
      maxTime: moment.duration(moment(settingsPromise.booking_window_end).format('HH:mm:ss')),
      eventClick (event, jsEvent, view) {
        return calendarEventClickCb(event, jsEvent, view);
      },
      eventRender (event, element, view) {
        return eventRenderCb(event, element, view);
      }
    });

    // Application global settings
    $scope.settings = settingsPromise;

    // Global config: message to the end user concerning the subscriptions rules
    $scope.subscriptionExplicationsAlert = settingsPromise.subscription_explications_alert;

    // Global config: message to the end user concerning the space reservation
    $scope.spaceExplicationsAlert = settingsPromise.space_explications_alert;

    /**
     * Change the last selected slot's appearance to looks like 'added to cart'
     */
    $scope.markSlotAsAdded = function () {
      $scope.selectedEvent.backgroundColor = SELECTED_EVENT_BG_COLOR;
      updateEvents($scope.selectedEvent);
    };

    /**
     * Change the last selected slot's appearance to looks like 'never added to cart'
     */
    $scope.markSlotAsRemoved = function (slot) {
      slot.backgroundColor = 'white';
      slot.title = '';
      slot.borderColor = FREE_SLOT_BORDER_COLOR;
      slot.slot_id = null;
      slot.isValid = false;
      slot.is_reserved = false;
      slot.can_modify = false;
      slot.offered = false;
      if (slot.is_completed) { slot.is_completed = false; }
      updateEvents(slot);
    };

    /**
     * Callback when a slot was successfully cancelled. Reset the slot style as 'ready to book'
     */
    $scope.slotCancelled = function () { $scope.markSlotAsRemoved($scope.selectedEvent); };

    /**
     * Change the last selected slot's appearance to looks like 'currently looking for a new destination to exchange'
     */
    $scope.markSlotAsModifying = function () {
      $scope.selectedEvent.backgroundColor = '#eee';
      $scope.selectedEvent.title = _t('app.logged.space_reserve.i_change');
      updateEvents($scope.selectedEvent);
    };

    /**
     * Change the last selected slot's appearance to looks like 'the slot being exchanged will take this place'
     */
    $scope.changeModifySpaceSlot = function () {
      if ($scope.events.placable) {
        $scope.events.placable.backgroundColor = 'white';
        $scope.events.placable.title = '';
        updateEvents($scope.events.placable);
      }
      if (!$scope.events.placable || ($scope.events.placable._id !== $scope.selectedEvent._id)) {
        $scope.selectedEvent.backgroundColor = '#bbb';
        $scope.selectedEvent.title = _t('app.logged.space_reserve.i_shift');
        updateEvents($scope.selectedEvent);
      }
      return true;
    };

    /**
     * When modifying an already booked reservation, callback when the modification was successfully done.
     */
    $scope.modifySpaceSlot = function () {
      const save = {
        slotId: $scope.events.modifiable.slot_id,
        borderColor: $scope.events.modifiable.borderColor,
        title: _t('app.logged.space_reserve.i_ve_reserved')
      };

      $scope.events.modifiable.backgroundColor = 'white';
      $scope.events.modifiable.title = '';
      $scope.events.modifiable.borderColor = FREE_SLOT_BORDER_COLOR;
      $scope.events.modifiable.slot_id = null;
      $scope.events.modifiable.is_reserved = false;
      $scope.events.modifiable.can_modify = false;
      if ($scope.events.modifiable.is_completed) { $scope.events.modifiable.is_completed = false; }
      updateEvents($scope.events.modifiable);

      $scope.events.placable.title = save.title;
      $scope.events.placable.backgroundColor = 'white';
      $scope.events.placable.borderColor = save.borderColor;
      $scope.events.placable.slot_id = save.slotId;
      $scope.events.placable.is_reserved = true;
      $scope.events.placable.can_modify = true;
      updateEvents($scope.events.placable);

      refetchCalendar();
    };

    /**
     * Cancel the current booking modification, reseting the whole process
     */
    $scope.cancelModifySpaceSlot = function () {
      if ($scope.events.placable) {
        $scope.events.placable.backgroundColor = 'white';
        $scope.events.placable.title = '';
      }
      $scope.events.modifiable.title = _t('app.logged.space_reserve.i_ve_reserved');
      $scope.events.modifiable.backgroundColor = 'white';

      updateEvents($scope.events.placable, $scope.events.modifiable);
    };

    /**
     * Callback to deal with the reservations of the user selected in the dropdown list instead of the current user's
     * reservations. (admins only)
     */
    $scope.updateMember = function () {
      if ($scope.ctrl.member) {
        Member.get({ id: $scope.ctrl.member.id }, function (member) {
          $scope.ctrl.member = member;
          return Availability.spaces({ spaceId: $scope.space.id, member_id: $scope.ctrl.member.id }, function (spaces) {
            uiCalendarConfig.calendars.calendar.fullCalendar('removeEvents');
            return $scope.eventSources.splice(0, 1, {
              events: spaces,
              textColor: 'black'
            }
            );
          });
        });
      }
      // as the events are re-fetched for the new user, we must re-init the cart
      $scope.events.reserved = [];
      $scope.selectedPlan = null;
      return $scope.plansAreShown = false;
    };

    /**
     * Add the provided plan to the current shopping cart
     * @param plan {Object} the plan to subscribe
     */
    $scope.selectPlan = function (plan) {
      setTimeout(() => {
        // toggle selected plan
        if ($scope.selectedPlan !== plan) {
          $scope.selectedPlan = plan;
        } else {
          $scope.selectedPlan = null;
        }
        $scope.planSelectionTime = new Date();
        $scope.$apply();
      }, 50);
    };

    /**
     * Check if the provided plan is currently selected
     * @param plan {Object} Resource plan
     */
    $scope.isSelected = function (plan) {
      return $scope.selectedPlan === plan;
    };

    /**
     * Changes the user current view from the plan subscription screen to the machine reservation agenda
     * @param e {Object} see https://docs.angularjs.org/guide/expression#-event-
     */
    $scope.doNotSubscribePlan = function (e) {
      e.preventDefault();
      $scope.plansAreShown = false;
      $scope.selectedPlan = null;
      return $scope.planSelectionTime = new Date();
    };

    /**
     * Switch the user's view from the reservation agenda to the plan subscription
     */
    $scope.showPlans = function () { $scope.plansAreShown = true; };

    /**
     * Once the reservation is booked (payment process successfully completed), change the event style
     * in fullCalendar, update the user's subscription and free-credits if needed
     * @param reservation {Object}
     */
    $scope.afterPayment = function (reservation) {
      angular.forEach($scope.events.paid, function (spaceSlot, key) {
        spaceSlot.is_reserved = true;
        spaceSlot.can_modify = true;
        spaceSlot.title = _t('app.logged.space_reserve.i_ve_reserved');
        spaceSlot.backgroundColor = 'white';
        spaceSlot.borderColor = RESERVED_SLOT_BORDER_COLOR;
        updateSpaceSlotId(spaceSlot, reservation);
        updateEvents(spaceSlot);
      });

      if ($scope.selectedPlan) {
        $scope.ctrl.member.subscribed_plan = angular.copy($scope.selectedPlan);
        if ($scope.ctrl.member.id === Auth._currentUser.id) {
          Auth._currentUser.subscribed_plan = angular.copy($scope.selectedPlan);
        }
        $scope.plansAreShown = false;
        $scope.selectedPlan = null;
      }
      $scope.ctrl.member.training_credits = angular.copy(reservation.user.training_credits);
      $scope.ctrl.member.machine_credits = angular.copy(reservation.user.machine_credits);
      if ($scope.ctrl.member.id === Auth._currentUser.id) {
        Auth._currentUser.training_credits = angular.copy(reservation.user.training_credits);
        Auth._currentUser.machine_credits = angular.copy(reservation.user.machine_credits);
      }

      refetchCalendar();
    };

    /**
     * To use as callback in Array.prototype.filter to get only enabled plans
     */
    $scope.filterDisabledPlans = function (plan) { return !plan.disabled; };

    /* PRIVATE SCOPE */

    /**
     * Kind of constructor: these actions will be realized first when the controller is loaded
     */
    const initialize = function () {
      if ($scope.currentUser.role !== 'admin') {
        Member.get({ id: $scope.currentUser.id }, function (member) { $scope.ctrl.member = member; });
      }
      // we load the availabilities from a callback function of the $scope.eventSources, instead of resolving a promise
      // in the router because this allows to refetchEvents from fullCalendar API.
      $scope.eventSources.push({
        events: function (start, end, timezone, callback) {
          Availability.spaces({ spaceId: $stateParams.id }, function (availabilities) {
            callback(availabilities);
          });
        },
        textColor: 'black'
      });
    };

    /**
     * Triggered when the user clicks on a reservation slot in the agenda.
     * Defines the behavior to adopt depending on the slot status (already booked, free, ready to be reserved ...),
     * the user's subscription (current or about to be took), and the time (the user cannot modify a booked reservation
     * if it's too late).
     * @see http://fullcalendar.io/docs/mouse/eventClick/
     */
    const calendarEventClickCb = function (event, jsEvent, view) {
      $scope.selectedEvent = event;
      $scope.selectionTime = new Date();
    };

    /**
     * Triggered when fullCalendar tries to graphically render an event block.
     * Append the event tag into the block, just after the event title.
     * @see http://fullcalendar.io/docs/event_rendering/eventRender/
     */
    const eventRenderCb = function (event, element, view) {
      if (($scope.currentUser.role === 'admin') && (event.tags.length > 0)) {
        let html = '';
        for (let tag of Array.from(event.tags)) {
          html += `<span class='label label-success text-white' title='${tag.name}'>${tag.name}</span>`;
        }
        element.find('.fc-time').append(html);
      }
    };

    /**
     * After payment, update the id of the newly reserved slot with the id returned by the server.
     * This will allow the user to modify the reservation he just booked.
     * @param slot {Object}
     * @param reservation {Object}
     */
    const updateSpaceSlotId = function (slot, reservation) {
      angular.forEach(reservation.slots, function (s) {
        if (slot.start.isSame(s.start_at)) {
          slot.slot_id = s.id;
        }
      });
    };

    /**
     * Update the calendar's display to render the new attributes of the events
     * @param events Object[] events to update in full-calendar
     */
    const updateEvents = function (...events) {
      const realEvents = events.filter(e => !_.isNil(e));
      uiCalendarConfig.calendars.calendar.fullCalendar('updateEvents', realEvents);
    };


    /**
     * Asynchronously fetch the events from the API and refresh the calendar's view with these new events
     */
    const refetchCalendar = function () {
      uiCalendarConfig.calendars.calendar.fullCalendar('refetchEvents');
      setTimeout(() => {
        uiCalendarConfig.calendars.calendar.fullCalendar('rerenderEvents');
      }, 200);
    };

    // !!! MUST BE CALLED AT THE END of the controller
    return initialize();
  }

]);
