async updateProxyDependentUi()

in src/js/popup.js [1711:1747]
30 lines of code
10 McCabe index (conditional complexity)

      async updateProxyDependentUi(proxyInfo) {
        const mozillaVpnProxyLocationAvailable = (proxy) => {
          return typeof(proxy) !== "undefined" && typeof(proxy.countryCode) !== "undefined" && typeof(proxy.cityName) !== "undefined";
        };

        const mozillaVpnProxyIsEnabled = (proxy) => {
          return typeof(proxy) !== "undefined" && typeof(proxy.mozProxyEnabled) !== "undefined" && proxy.mozProxyEnabled === true;
        };

        this.switch.checked = mozillaVpnProxyIsEnabled(proxyInfo);
        this.updateProxyInputs(proxyInfo);
        this.enableDisableProxyButtons();

        const mozillaVpnConnected = await browser.runtime.sendMessage({ method: "MozillaVPN_getConnectionStatus" });
        if (
          !proxyInfo ||
          !mozillaVpnProxyLocationAvailable(proxyInfo) ||
          !mozillaVpnConnected
        ) {
          // Hide server location button
          this.currentServerButton.classList.add("hidden");
          this.classList.remove("show-server-button");
        } else {
          // Unhide server location button
          this.currentServerButton.style.display = "flex";
          this.currentServerButton.classList.remove("hidden");
          this.classList.add("show-server-button");
        }

        // Populate inputs and server button with current or previously stored mozilla vpn proxy
        if(proxyInfo && mozillaVpnProxyLocationAvailable(proxyInfo)) {
          this.currentCountryFlag.style.backgroundImage = `url("./img/flags/${proxyInfo.countryCode.toUpperCase()}.png")`;
          this.currentCountryFlag.style.backgroundImage = proxyInfo.countryCode + ".png";
          this.currentCityName.textContent = proxyInfo.cityName;
          this.countryCode = proxyInfo.countryCode;
        }
      }