/**
 * Patch for the `@capacitor/barcode-scanner` plugin for web.
 * This is related to
 * https://github.com/ionic-team/capacitor-barcode-scanner/issues/50
 *
 * This patch registers a new plugin for Capacitor that provides a fixed
 * web implementation of the barcode scanner.
 *
 * The plugin is named `CapacitorBarcodeScannerPatchWeb` and only contains
 * the web version. For iOS and Android, the original plugin needs to be used.
 */

import type {
  CapacitorBarcodeScannerOptions,
  CapacitorBarcodeScannerPlugin,
  CapacitorBarcodeScannerScanResult,
} from "@capacitor/barcode-scanner";
import {
  CapacitorBarcodeScannerCameraDirection,
  CapacitorBarcodeScannerScanOrientation,
} from "@capacitor/barcode-scanner";
import { registerPlugin } from "@capacitor/core";
import {
  applyCss,
  barcodeScannerCss,
} from "@/patches/capacitor-barcode-scanner/utils";

/**
 * Registers the `OSBarcode` plugin with Capacitor.
 * For web platforms, it applies necessary CSS for the barcode scanner and dynamically imports the web implementation.
 * This allows for lazy loading of the web code only when needed, optimizing overall bundle size.
 */
const CapacitorBarcodeScannerImpl =
  registerPlugin<CapacitorBarcodeScannerPlugin>(
    "CapacitorBarcodeScannerPatchWeb",
    {
      web: () => {
        applyCss(barcodeScannerCss); // Apply the CSS styles necessary for the web implementation of the barcode scanner.
        return import("./web").then((m) => new m.CapacitorBarcodeScannerWeb()); // Dynamically import the web implementation and instantiate it.
      },
    }
  );

class CapacitorBarcodeScannerPatchWeb {
  public static async scanBarcode(
    options: CapacitorBarcodeScannerOptions
  ): Promise<CapacitorBarcodeScannerScanResult> {
    // Ensure scanInstructions is at least a space.
    options.scanInstructions = options.scanInstructions || " ";

    // Set scanButton to false if not provided.
    options.scanButton = options.scanButton || false;

    // Ensure scanText is at least a space.
    options.scanText = options.scanText || " ";

    // Set cameraDirection to 'BACK' if not provided.
    options.cameraDirection =
      options.cameraDirection || CapacitorBarcodeScannerCameraDirection.BACK;

    options.scanOrientation =
      options.scanOrientation ||
      // Set scanOrientation to 'ADAPTIVE' if not provided.
      CapacitorBarcodeScannerScanOrientation.ADAPTIVE;
    return CapacitorBarcodeScannerImpl.scanBarcode(options);
  }
}

export { CapacitorBarcodeScannerPatchWeb };