feat(core): Integrate Handelsregister search for company data retrieval

ts/classes.handelsregister.ts

@@ -0,0 +1,138 @@
+import type { OpenData } from './classes.main.opendata.js';
+import * as plugins from './plugins.js';
+
+/**
+ * the HandlesRegister exposed as a class
+ */
+export class HandelsRegister {
+  private openDataRef: OpenData;
+
+  public smartbrowserInstance = new plugins.smartbrowser.SmartBrowser();
+
+  constructor(openDataRef: OpenData) {
+    this.openDataRef = openDataRef;
+  }
+
+  public async start() {
+    await this.smartbrowserInstance.start();
+  }
+
+  public async stop() {
+    await this.smartbrowserInstance.stop();
+  }
+
+  /**
+   * Search for a company by name
+   */
+  public async getDataForCompany(companyNameArg: string) {
+    const page = await this.smartbrowserInstance.headlessBrowser.newPage();
+    await page.setViewport({ width: 1920, height: 1080 });
+    await page.goto('https://www.handelsregister.de/');
+    await page.evaluate(() => {
+      const elements = Array.from(document.querySelectorAll('.ui-menuitem-text > span'));
+      const targetElement = elements.find((el) => el.textContent?.trim() === 'Normal search');
+      if (targetElement) {
+        (targetElement as HTMLElement).click();
+      }
+    });
+
+    try {
+      // Wait for the textarea to appear
+      await page.waitForSelector('#form\\:schlagwoerter', { timeout: 5000 });
+
+      // Enter text into the textarea using page.evaluate
+      const inputText = companyNameArg;
+      await page.evaluate((text) => {
+        const textarea = document.querySelector<HTMLTextAreaElement>('#form\\:schlagwoerter');
+        if (textarea) {
+          textarea.value = text; // Set the value
+          // Trigger the change event manually if required
+          const event = new Event('change', { bubbles: true });
+          textarea.dispatchEvent(event);
+        }
+      }, inputText);
+
+      console.log('Text entered successfully!');
+    } catch (error) {
+      console.error('Failed to find or enter text into the textarea:', error);
+    }
+
+    try {
+      // Wait for the radio button's label to appear
+      await page.waitForSelector('label[for="form:schlagwortOptionen:0"]', { timeout: 5000 });
+
+      // Click the label to select the radio button
+      await page.evaluate(() => {
+        const label = document.querySelector<HTMLLabelElement>(
+          'label[for="form:schlagwortOptionen:0"]'
+        );
+        if (label) {
+          label.click();
+        }
+      });
+
+      console.log('Radio button clicked successfully!');
+    } catch (error) {
+      console.error('Failed to find or click the radio button:', error);
+    }
+
+    try {
+      // Wait for the button with the text "Find" to appear
+      await page.waitForSelector('span.ui-button-text.ui-c', { timeout: 5000 });
+
+      // Locate and click the button using its text
+      await page.evaluate(() => {
+        const buttons = Array.from(document.querySelectorAll('span.ui-button-text.ui-c'));
+        const targetButton = buttons.find((button) => button.textContent?.trim() === 'Find');
+        if (targetButton) {
+          const parentButton = targetButton.closest('button') || targetButton;
+          (parentButton as HTMLElement).click();
+        }
+      });
+
+      console.log('Find button clicked successfully!');
+    } catch (error) {
+      console.error('Failed to find or click the "Find" button:', error);
+    }
+
+    await page.waitForSelector('#ergebnissForm\\:selectedSuchErgebnisFormTable_data', {
+      timeout: 10000,
+    });
+
+    const businessRecords = await page.evaluate(() => {
+      const rows = document.querySelectorAll(
+        '#ergebnissForm\\:selectedSuchErgebnisFormTable_data > tr'
+      );
+      const records = [];
+
+      rows.forEach((row) => {
+        const nameElement = row.querySelector('td.ui-panelgrid-cell span.marginLeft20');
+        const cityElement = row.querySelector('td.ui-panelgrid-cell.sitzSuchErgebnisse span');
+        const statusElement = row.querySelector('td.ui-panelgrid-cell span.verticalText');
+        const registrationCourtElement = row.querySelector(
+          'td.ui-panelgrid-cell.fontTableNameSize'
+        );
+
+        const name = nameElement?.textContent?.trim();
+        const city = cityElement?.textContent?.trim();
+        const status = statusElement?.textContent?.trim();
+        const registrationCourt = registrationCourtElement?.textContent?.trim();
+
+        // Push parsed data into records array
+        records.push({
+          name,
+          city,
+          registrationCourt,
+          businessType: status,
+        });
+      });
+
+      return records;
+    });
+
+    await page.close();
+
+    // Finally, we return an object, which triggers a JSON file download
+    return businessRecords;
+  }
+}