/*****************************************************************************
 * Open MCT, Copyright (c) 2014-2023, United States Government
 * as represented by the Administrator of the National Aeronautics and Space
 * Administration. All rights reserved.
 *
 * Open MCT is licensed under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * Open MCT includes source code licensed under additional open source
 * licenses. See the Open Source Licenses file (LICENSES.md) included with
 * this source code distribution or the Licensing information page available
 * at runtime from the About dialog for additional information.
 *****************************************************************************/

function ToolbarProvider(openmct) {
  return {
    name: 'Flexible Layout Toolbar',
    key: 'flex-layout',
    description: 'A toolbar for objects inside a Flexible Layout.',
    forSelection: function (selection) {
      let context = selection[0][0].context;

      return (
        context &&
        context.type &&
        (context.type === 'flexible-layout' ||
          context.type === 'container' ||
          context.type === 'frame')
      );
    },
    toolbar: function (selection) {
      let selectionPath = selection[0];
      let primary = selectionPath[0];
      let secondary = selectionPath[1];
      let tertiary = selectionPath[2];
      let deleteFrame;
      let toggleContainer;
      let deleteContainer;
      let addContainer;
      let toggleFrame;

      toggleContainer = {
        control: 'toggle-button',
        key: 'toggle-layout',
        domainObject: primary.context.item,
        property: 'configuration.rowsLayout',
        options: [
          {
            value: true,
            icon: 'icon-columns',
            title: 'Columns layout'
          },
          {
            value: false,
            icon: 'icon-rows',
            title: 'Rows layout'
          }
        ]
      };

      function getSeparator() {
        return {
          control: 'separator'
        };
      }

      if (primary.context.type === 'frame') {
        if (secondary.context.item.locked) {
          return [];
        }

        let frameId = primary.context.frameId;
        let layoutObject = tertiary.context.item;
        let containers = layoutObject.configuration.containers;
        let container = containers.filter((c) => c.frames.some((f) => f.id === frameId))[0];
        let containerIndex = containers.indexOf(container);
        let frame = container && container.frames.filter((f) => f.id === frameId)[0];
        let frameIndex = container && container.frames.indexOf(frame);
        const primaryKeyString = openmct.objects.makeKeyString(primary.context.item.identifier);
        const tertiaryKeyString = openmct.objects.makeKeyString(tertiary.context.item.identifier);
        deleteFrame = {
          control: 'button',
          domainObject: primary.context.item,
          method: function () {
            let prompt = openmct.overlays.dialog({
              iconClass: 'alert',
              message: `This action will remove this frame from this Flexible Layout. Do you want to continue?`,
              buttons: [
                {
                  label: 'OK',
                  emphasis: 'true',
                  callback: function () {
                    openmct.objectViews.emit(
                      `contextAction:${primaryKeyString}`,
                      'deleteFrame',
                      primary.context.frameId
                    );
                    prompt.dismiss();
                  }
                },
                {
                  label: 'Cancel',
                  callback: function () {
                    prompt.dismiss();
                  }
                }
              ]
            });
          },
          key: 'remove',
          icon: 'icon-trash',
          title: 'Remove Frame'
        };
        toggleFrame = {
          control: 'toggle-button',
          domainObject: secondary.context.item,
          property: `configuration.containers[${containerIndex}].frames[${frameIndex}].noFrame`,
          options: [
            {
              value: false,
              icon: 'icon-frame-hide',
              title: 'Frame hidden'
            },
            {
              value: true,
              icon: 'icon-frame-show',
              title: 'Frame visible'
            }
          ]
        };

        addContainer = {
          control: 'button',
          domainObject: tertiary.context.item,
          method: function (...args) {
            openmct.objectViews.emit(`contextAction:${tertiaryKeyString}`, 'addContainer', ...args);
          },
          key: 'add',
          icon: 'icon-plus-in-rect',
          title: 'Add Container'
        };

        toggleContainer.domainObject = secondary.context.item;
      } else if (primary.context.type === 'container') {
        if (primary.context.item.locked) {
          return [];
        }

        deleteContainer = {
          control: 'button',
          domainObject: primary.context.item,
          method: function () {
            let containerId = primary.context.containerId;

            let prompt = openmct.overlays.dialog({
              iconClass: 'alert',
              message:
                'This action will permanently delete this container from this Flexible Layout. Do you want to continue?',
              buttons: [
                {
                  label: 'OK',
                  emphasis: 'true',
                  callback: function () {
                    openmct.objectViews.emit('contextAction', 'deleteContainer', containerId);
                    prompt.dismiss();
                  }
                },
                {
                  label: 'Cancel',
                  callback: function () {
                    prompt.dismiss();
                  }
                }
              ]
            });
          },
          key: 'remove',
          icon: 'icon-trash',
          title: 'Remove Container'
        };

        const domainObject = secondary.context.item;
        const keyString = openmct.objects.makeKeyString(domainObject.identifier);

        addContainer = {
          control: 'button',
          domainObject,
          method: function (...args) {
            openmct.objectViews.emit(`contextAction:${keyString}`, 'addContainer', ...args);
          },
          key: 'add',
          icon: 'icon-plus-in-rect',
          title: 'Add Container'
        };
      } else if (primary.context.type === 'flexible-layout') {
        if (primary.context.item.locked) {
          return [];
        }

        const domainObject = primary.context.item;
        const keyString = openmct.objects.makeKeyString(domainObject.identifier);

        addContainer = {
          control: 'button',
          domainObject,
          method: function (...args) {
            openmct.objectViews.emit(`contextAction:${keyString}`, 'addContainer', ...args);
          },
          key: 'add',
          icon: 'icon-plus-in-rect',
          title: 'Add Container'
        };
      }

      let toolbar = [
        toggleContainer,
        addContainer,
        toggleFrame ? getSeparator() : undefined,
        toggleFrame,
        deleteFrame || deleteContainer ? getSeparator() : undefined,
        deleteFrame,
        deleteContainer
      ];

      return toolbar.filter((button) => button !== undefined);
    }
  };
}

export default ToolbarProvider;