ml__( 'Afterpay allows customers to receive products immediately and pay for purchases over four installments, always interest-free.', 'woocommerce' ),
				'image'       => plugins_url( 'assets/images/onboarding/afterpay.png', WC_PLUGIN_FILE ),
				'icon'        => plugins_url( 'assets/images/onboarding/icons/afterpay-clearpay.svg', WC_PLUGIN_FILE ),
				'plugin'      => array(
					'_type' => self::PLUGIN_TYPE_WPORG,
					'slug'  => 'afterpay-gateway-for-woocommerce',
				),
				'links'       => array(
					array(
						'_type' => self::LINK_TYPE_PRICING,
						'url'   => 'https://www.afterpay.com/for-retailers',
					),
					array(
						'_type' => self::LINK_TYPE_ABOUT,
						'url'   => 'https://woocommerce.com/products/afterpay/',
					),
					array(
						'_type' => self::LINK_TYPE_TERMS,
						'url'   => 'https://www.afterpay.com/terms-of-service',
					),
					array(
						'_type' => self::LINK_TYPE_DOCS,
						'url'   => 'https://woocommerce.com/document/afterpay/',
					),
					array(
						'_type' => self::LINK_TYPE_SUPPORT,
						'url'   => 'https://woocommerce.com/my-account/contact-support/?select=afterpay',
					),
				),
			),
			self::CLEARPAY          => array(
				'_type'       => self::TYPE_BNPL,
				'title'       => esc_html__( 'Clearpay', 'woocommerce' ),
				'description' => esc_html__( 'Clearpay allows customers to receive products immediately and pay for purchases over four installments, always interest-free.', 'woocommerce' ),
				'icon'        => plugins_url( 'assets/images/onboarding/icons/afterpay-clearpay.svg', WC_PLUGIN_FILE ),
				'plugin'      => array(
					'_type' => self::PLUGIN_TYPE_WPORG,
					'slug'  => 'clearpay-gateway-for-woocommerce',
				),
				'links'       => array(
					array(
						'_type' => self::LINK_TYPE_PRICING,
						'url'   => 'https://www.clearpay.co.uk/en-GB/for-retailers',
					),
					array(
						'_type' => self::LINK_TYPE_ABOUT,
						'url'   => 'https://woocommerce.com/products/clearpay/',
					),
					array(
						'_type' => self::LINK_TYPE_TERMS,
						'url'   => 'https://www.clearpay.co.uk/terms-of-service',
					),
					array(
						'_type' => self::LINK_TYPE_DOCS,
						'url'   => 'https://woocommerce.com/document/clearpay/',
					),
					array(
						'_type' => self::LINK_TYPE_SUPPORT,
						'url'   => 'https://woocommerce.com/my-account/contact-support/?select=clearpay',
					),
				),
			),
			self::KLARNA            => array(
				'_type'       => self::TYPE_BNPL,
				'title'       => esc_html__( 'Klarna Payments', 'woocommerce' ),
				'description' => esc_html__( 'Choose the payment that you want, pay now, pay later or slice it. No credit card numbers, no passwords, no worries.', 'woocommerce' ),
				'image'       => plugins_url( 'assets/images/onboarding/klarna-black.png', WC_PLUGIN_FILE ),
				'icon'        => plugins_url( 'assets/images/onboarding/icons/klarna.svg', WC_PLUGIN_FILE ),
				'plugin'      => array(
					'_type' => self::PLUGIN_TYPE_WPORG,
					'slug'  => 'klarna-payments-for-woocommerce',
				),
				'links'       => array(
					array(
						'_type' => self::LINK_TYPE_PRICING,
						'url'   => 'https://www.klarna.com/us/business/payment-methods/',
					),
					array(
						'_type' => self::LINK_TYPE_ABOUT,
						'url'   => 'https://woocommerce.com/products/klarna-payments/',
					),
					array(
						'_type' => self::LINK_TYPE_TERMS,
						'url'   => 'https://www.klarna.com/us/legal/',
					),
					array(
						'_type' => self::LINK_TYPE_DOCS,
						'url'   => 'https://woocommerce.com/document/klarna-payments/',
					),
					array(
						'_type' => self::LINK_TYPE_SUPPORT,
						'url'   => 'https://woocommerce.com/my-account/contact-support/?select=klarna-payments',
					),
				),
			),
			self::HELIOPAY          => array(
				'_type'       => self::TYPE_CRYPTO,
				'title'       => esc_html__( 'Helio Pay', 'woocommerce' ),
				'description' => esc_html__( 'Effortlessly accept cryptocurrency payments in your WooCommerce store with Helio Pay.', 'woocommerce' ),
				'icon'        => plugins_url( 'assets/images/onboarding/icons/heliopay.png', WC_PLUGIN_FILE ),
				'plugin'      => array(
					'_type' => self::PLUGIN_TYPE_WPORG,
					'slug'  => 'helio',
				),
				'links'       => array(
					array(
						'_type' => self::LINK_TYPE_PRICING,
						'url'   => 'https://www.hel.io/pricing',
					),
					array(
						'_type' => self::LINK_TYPE_ABOUT,
						'url'   => 'https://woocommerce.com/products/helio-pay/',
					),
					array(
						'_type' => self::LINK_TYPE_TERMS,
						'url'   => 'https://info.docs.hel.io/terms-of-service',
					),
					array(
						'_type' => self::LINK_TYPE_DOCS,
						'url'   => 'https://woocommerce.com/document/helio-pay/',
					),
					array(
						'_type' => self::LINK_TYPE_SUPPORT,
						'url'   => 'https://woocommerce.com/my-account/contact-support/?select=helio-pay',
					),
				),
			),
		);
	}

	/**
	 * Get the base details for a specific extension.
	 *
	 * @see self::standardize_extension_details() for the supported entries.
	 *
	 * @param string $extension_id The extension ID.
	 *
	 * @return ?array The extension base details.
	 *                Null if the extension is not one we have details for.
	 */
	private function get_extension_base_details( string $extension_id ): ?array {
		$extensions = $this->get_all_extensions_base_details();
		if ( ! isset( $extensions[ $extension_id ] ) ) {
			return null;
		}

		return $extensions[ $extension_id ];
	}

	/**
	 * Standardize the details for an extension.
	 *
	 * Ensures that the details array has all the required fields, and fills in any missing optional fields with defaults.
	 * We also enforce a consistent order for the fields.
	 *
	 * @param array $extension_details The extension details.
	 *
	 * @return array The standardized extension details.
	 */
	private function standardize_extension_details( array $extension_details ): array {
		$standardized = array();

		// Required fields.
		$standardized['id']          = $extension_details['id'];
		$standardized['_priority']   = $extension_details['_priority'];
		$standardized['_type']       = $extension_details['_type'];
		$standardized['title']       = $extension_details['title'];
		$standardized['description'] = $extension_details['description'];
		$standardized['plugin']      = $extension_details['plugin'];

		// Optional fields.
		$standardized['image']      = $extension_details['image'] ?? '';
		$standardized['icon']       = $extension_details['icon'] ?? '';
		$standardized['links']      = $extension_details['links'] ?? array();
		$standardized['tags']       = $extension_details['tags'] ?? array();
		$standardized['_incentive'] = $extension_details['_incentive'] ?? null;

		return $standardized;
	}
}