editor-application-service.js

import domainEventPublisher from '../singletons/domain-event-publisher'
import EventLogger from '../libraries/event-logger'
import ipc from 'ipc'
import keyboardEventPublisher from '../singletons/keyboard-event-publisher'
import SheetCreator from '../domain-models/sheet-creator'
import SheetGroupLoader from '../domain-models/sheet-group-loader'
import SheetLoader from '../domain-models/sheet-loader'
import SheetMover from '../domain-models/sheet-mover'
import SheetUpdater from '../domain-models/sheet-updater'
import State from '../domain-models/state'
import View from '../domain-models/view'
import viewEventPublisher from '../singletons/view-event-publisher'

export default class ApplicationService {
  constructor() {
    this.domainEventLogger = new EventLogger({ name: 'Domain' });
    this.sheetCreator = new SheetCreator();
    this.sheetGroupLoader = new SheetGroupLoader();
    this.sheetLoader = new SheetLoader();
    this.sheetMover = new SheetMover();
    this.sheetUpdater = new SheetUpdater();
    this.state = new State();
    this.view = new View();
    this.viewEventLogger = new EventLogger({ name: 'View' });
  }

  start() {
    this.subscribeDomainEvents();
    this.subscribeIpcEvents();
    this.subscribeKeyboardEvents();
    this.subscribeStateEvents();
    this.subscribeViewEvents();
    this.view.render(this.state.toViewState());
    this.sheetGroupLoader.loadSheetGroups();
  }

  subscribeDomainEvents() {
    domainEventPublisher.subscribe((event) => {
      this.domainEventLogger.log({ event, state: this.state.toViewState() });
    }).on('editor-focused', () => {
      this.state.focusEditor();
    }).on('editor-unfocused', () => {
      this.state.unfocusEditor();
    }).on('requested-to-clear-sheet-selection', () => {
      this.state.clearSheetSelection();
    }).on('requested-to-create-new-sheet', () => {
      this.sheetCreator.create({ directory: this.state.selectedSheetGroup.path });
    }).on('requested-to-delete-selected-sheets', () => {
      this.state.selectedSheets.forEach((sheet) => {
        this.sheetMover.move({ sheet: sheet, sheetGroup: this.state.trashSheetGroup });
      });
    }).on('requested-to-enter-selected-sheet', () => {
      this.state.focusEditor();
    }).on('requested-to-select-sheet-group', ({ sheetGroup }) => {
      this.state.selectSheetGroup(sheetGroup);
      this.sheetLoader.loadSheetsFrom(sheetGroup.path);
    }).on('requested-to-select-next-sheet', () => {
      this.state.selectNextSheet();
    }).on('requested-to-select-next-sheet-range', () => {
      this.state.selectNextSheetRange();
    }).on('requested-to-select-previous-sheet', () => {
      this.state.selectPreviousSheet();
    }).on('requested-to-select-previous-sheet-range', () => {
      this.state.selectPreviousSheetRange();
    }).on('requested-to-select-sheet', ({ sheet }) => {
      this.state.selectSheet(sheet);
    }).on('requested-to-select-sheet-range', ({ sheet }) => {
      this.state.selectSheetRange(sheet);
    }).on('requested-to-switch-to-one-pane', () => {
      this.state.switchToOnePane();
    }).on('requested-to-switch-to-three-pane', () => {
      this.state.switchToThreePane();
    }).on('requested-to-switch-to-two-pane', () => {
      this.state.switchToTwoPane();
    }).on('requested-to-toggle-sheet-selection', ({ sheet }) => {
      this.state.toggleSheetSelection(sheet);
    }).on('selected-sheet-content-changed', ({ content, sheet }) => {
      this.sheetUpdater.update({ content, sheet });
    }).on('sheet-created', ({ sheet }) => {
      this.state.addSheet(sheet);
      this.state.selectSheet(sheet);
      this.state.focusEditor();
    }).on('sheet-moved', ({ sheet }) => {
      this.state.deleteSheet(sheet);
    }).on('sheet-groups-loaded', ({ sheetGroups }) => {
      this.state.addSheetGroups(sheetGroups);
    }).on('sheet-updated', ({ sheet }) => {
      this.state.publish('changed');
    }).on('sheets-loaded', ({ sheets }) => {
      this.state.setSheets(sheets);
    });
  }

  subscribeIpcEvents() {
    ipc.on('requested-to-create-new-sheet', () => {
      domainEventPublisher.publish('requested-to-create-new-sheet');
    }).on('requested-to-delete-selected-sheets', () => {
      domainEventPublisher.publish('requested-to-delete-selected-sheets');
    }).on('requested-to-switch-to-one-pane', () => {
      domainEventPublisher.publish('requested-to-switch-to-one-pane');
    }).on('requested-to-switch-to-three-pane', () => {
      domainEventPublisher.publish('requested-to-switch-to-three-pane');
    }).on('requested-to-switch-to-two-pane', () => {
      domainEventPublisher.publish('requested-to-switch-to-two-pane');
    });
  }

  subscribeKeyboardEvents() {
    keyboardEventPublisher.on('Down', ({ event }) => {
      event.preventDefault();
      domainEventPublisher.publish('requested-to-select-next-sheet');
    }).on('Esc', ({ event }) => {
      event.preventDefault();
      domainEventPublisher.publish('requested-to-clear-sheet-selection');
    }).on('Return', ({ event }) => {
      event.preventDefault();
      domainEventPublisher.publish('requested-to-enter-selected-sheet');
    }).on('Shift+Down', ({ event }) => {
      event.preventDefault();
      domainEventPublisher.publish('requested-to-select-next-sheet-range');
    }).on('Shift+Up', ({ event }) => {
      event.preventDefault();
      domainEventPublisher.publish('requested-to-select-previous-sheet-range');
    }).on('Up', ({ event }) => {
      event.preventDefault();
      domainEventPublisher.publish('requested-to-select-previous-sheet');
    });
  }

  subscribeStateEvents() {
    this.state.on('changed', () => {
      this.view.rerender(this.state.toViewState());
    })
  }

  subscribeViewEvents() {
    viewEventPublisher.subscribe((event) => {
      this.viewEventLogger.log({ event, state: this.state.toViewState() });
    }).on('create-new-sheet-button-clicked', () => {
      domainEventPublisher.publish('requested-to-create-new-sheet');
    }).on('delete-selected-sheets-button-clicked', () => {
      domainEventPublisher.publish('requested-to-delete-selected-sheets');
    }).on('editor-focused', () => {
      domainEventPublisher.publish('editor-focused');
    }).on('editor-value-changed', ({ sheet, value }) => {
      domainEventPublisher.publish('selected-sheet-content-changed', { content: value, sheet });
    }).on('editor-unfocused', () => {
      domainEventPublisher.publish('editor-unfocused');
    }).on('sheet-clicked', ({ event, sheet }) => {
      if (event.ctrlKey ^ event.metaKey) {
        domainEventPublisher.publish('requested-to-toggle-sheet-selection', { sheet });
      } else if (event.shiftKey) {
        domainEventPublisher.publish('requested-to-select-sheet-range', { sheet });
      } else {
        domainEventPublisher.publish('requested-to-select-sheet', { sheet });
      }
    }).on('sheet-double-clicked', () => {
      domainEventPublisher.publish('requested-to-enter-selected-sheet');
    }).on('sheet-group-clicked', ({ sheetGroup }) => {
      domainEventPublisher.publish('requested-to-select-sheet-group', { sheetGroup });
    });
  }
}