chore: add auto device selection detection (#1009)

Jira ID: MOB-12654

Author: abdelhamid-f-nasser

examples/default/.detoxrc.js

@@ -1,4 +1,69 @@
 /** @type {Detox.DetoxConfig} */
+
+const { execSync } = require('child_process');
+
+// Currently we only test on `Pixel_4_API_31`
+const specificAvdName = null;
+
+// Returns the AVD name from available installed AVDs
+function getAVDName() {
+  try {
+    // Execute 'emulator -list-avds' command to get the list of AVDs
+    const avdListOutput = execSync('emulator -list-avds').toString();
+
+    // Split the output to get individual AVD names
+    const avdList = avdListOutput.trim().split('\n');
+
+    // Assuming you want to use the first AVD from the list, you can modify this logic as needed
+    return specificAvdName !== null ? specificAvdName : avdList.length > 0 ? avdList[0] : null;
+  } catch (error) {
+    console.error('Error while fetching AVD list:', error);
+    return null;
+  }
+}
+
+// Function to get the latest iOS simulator device type
+function getLatestIphoneSimulatorDeviceType() {
+  try {
+    // Execute 'xcrun simctl list devices' command to get the list of iOS simulator devices
+    const allSimulatorDevices = execSync('xcrun simctl list devices').toString();
+
+    // Filter the output to get the list of iPhone devices
+    const filteredDevices = allSimulatorDevices.match(/iPhone[^)]*/g);
+
+    // Clean the device names to get the final device type (excluding the device ID)
+    const cleanedDevices = filteredDevices.map((device) => device.replace(/\(.*$/, '').trim());
+
+    // Order of iPhone models to prioritize
+    const priorityOrder = [/Pro Max/i, /Pro/i, /\d/];
+
+    let selectedDeviceType = null;
+
+    // Loop through the priority order and select the first matching device type
+    for (const regex of priorityOrder) {
+      const matchingDevice = cleanedDevices.find((device) => regex.test(device));
+      if (matchingDevice) {
+        selectedDeviceType = matchingDevice;
+        break;
+      }
+    }
+
+    // If no matching device is found, default to the last device in the list
+    if (!selectedDeviceType) {
+      selectedDeviceType = cleanedDevices[cleanedDevices.length - 1];
+    }
+
+    // Remove the trailing newline character from the device type
+    const trimmedDeviceType = selectedDeviceType.replace('\n', '');
+
+    // Return the final device type
+    return trimmedDeviceType;
+  } catch (error) {
+    console.error('Error while fetching iOS simulator device list:', error);
+    return null;
+  }
+}
+
 module.exports = {
   testRunner: {
     $0: 'jest',
@@ -37,13 +102,13 @@ module.exports = {
     simulator: {
       type: 'ios.simulator',
       device: {
-        type: 'iPhone 13 Pro Max',
+        type: getLatestIphoneSimulatorDeviceType(),
       },
     },
     emulator: {
       type: 'android.emulator',
       device: {
-        avdName: 'Nexus_6P_API_27',
+        avdName: getAVDName(),
       },
     },
   },