import { ItemView, WorkspaceLeaf, setIcon } from 'obsidian';
import { FormStore } from '../core/form-store';

export const VIEW_TYPE_FORMFIRE_SIDEBAR = 'formfire-sidebar';

/**
 * Interface for the subset of FormfirePlugin that the sidebar needs.
 * Avoids circular dependency with main.ts.
 */
export interface SidebarPluginRef {
  store: FormStore;
  openForm: (id: string) => void;
}

export class FormfireSidebarView extends ItemView {
  private pluginRef: SidebarPluginRef;

  constructor(leaf: WorkspaceLeaf, pluginRef: SidebarPluginRef) {
    super(leaf);
    this.pluginRef = pluginRef;
  }

  getViewType(): string {
    return VIEW_TYPE_FORMFIRE_SIDEBAR;
  }

  getDisplayText(): string {
    return 'Formfire';
  }

  getIcon(): string {
    return 'file-input';
  }

  async onOpen(): Promise<void> {
    this.render();
  }

  async onClose(): Promise<void> {
    this.contentEl.empty();
  }

  public render(): void {
    const { contentEl } = this;
    contentEl.empty();

    const container = contentEl.createDiv({ cls: 'ff-sidebar' });

    // Header
    const header = container.createDiv({ cls: 'ff-sidebar-header' });
    header.createSpan({ text: 'Forms', cls: 'ff-sidebar-title' });

    const settingsBtn = header.createDiv({ cls: 'ff-sidebar-settings' });
    setIcon(settingsBtn, 'settings');
    settingsBtn.setAttribute('aria-label', 'Formfire settings');
    settingsBtn.addEventListener('click', () => {
      // Open Obsidian settings and navigate to the Formfire tab
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      const appAny = this.app as any;
      appAny.setting.open();
      appAny.setting.openTabById('formfire');
    });

    // Form list
    const forms = this.pluginRef.store.getAll();

    if (forms.length === 0) {
      container.createDiv({
        cls: 'ff-sidebar-empty',
        text: 'No forms yet. Open settings to create one.',
      });
      return;
    }

    const listEl = container.createDiv({ cls: 'ff-sidebar-list' });

    for (const form of forms) {
      const item = listEl.createDiv({ cls: 'ff-sidebar-item' });

      const badgeCls =
        form.mode === 'create' ? 'ff-badge-create' : 'ff-badge-update';
      item.createSpan({
        cls: `ff-sidebar-badge ${badgeCls}`,
        text: form.mode === 'create' ? 'C' : 'U',
      });

      item.createSpan({ cls: 'ff-sidebar-name', text: form.name });

      item.addEventListener('click', () => {
        this.pluginRef.openForm(form.id);
      });
    }
  }
}