android app almost done, start designing

src/apps/Android/app/src/main/AndroidManifest.xml

@@ -21,6 +21,10 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+            android:name=".ScannerActivity"
+            android:exported="true">
+        </activity>
     </application>
     <uses-feature android:name="android.hardware.camera" android:required="true" />
     <uses-feature android:name="android.hardware.camera.autofocus" android:required="true" />

src/apps/Android/app/src/main/java/com/janishutz/libreevent/ApiClient.kt

@@ -0,0 +1,108 @@
+package com.janishutz.libreevent
+
+import java.io.BufferedReader
+import java.io.DataOutputStream
+import java.io.InputStreamReader
+import java.lang.Exception
+import java.net.HttpURLConnection
+import java.net.URL
+
+class ApiClient {
+    fun authenticateUser(apiUrl: String, username: String, password: String): String {
+        try {
+            val url = URL("$apiUrl/app/authenticate")
+            println(url)
+            val connection = url.openConnection() as HttpURLConnection
+
+            // Set the request method to POST
+            connection.requestMethod = "POST"
+
+            // Set request headers (if needed)
+            connection.setRequestProperty("Content-Type", "application/json")
+            // Add other headers as needed
+
+            // Enable input and output streams for the connection
+            connection.doInput = true
+            connection.doOutput = true
+
+            // Create the JSON request body
+            val jsonRequest = "{\"username\":\"$username\",\"password\":\"$password\"}"
+
+            // Write the JSON data to the output stream
+            val outputStream = DataOutputStream(connection.outputStream)
+            outputStream.write(jsonRequest.toByteArray(Charsets.UTF_8))
+            outputStream.flush()
+            outputStream.close()
+
+            // Get the response code from the server
+            val responseCode = connection.responseCode
+
+            if (responseCode == HttpURLConnection.HTTP_OK) {
+                // Read and handle the response from the server
+                val reader = BufferedReader(InputStreamReader(connection.inputStream))
+                val response = StringBuilder()
+                var line: String?
+                while (reader.readLine().also { line = it } != null) {
+                    response.append(line)
+                }
+                reader.close()
+
+                // Return the response as a String
+                return response.toString()
+            } else {
+                // Handle the error (e.g., authentication failed)
+                // You can also throw an exception here if needed
+                return "status-code-non-ok"
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return "error"
+        }
+    }
+
+    fun checkTicket(apiUrl: String, username: String, password: String, ticket: String): String {
+        val url = URL("$apiUrl/app/ticketLookup")
+        val connection = url.openConnection() as HttpURLConnection
+
+        // Set the request method to POST
+        connection.requestMethod = "POST"
+
+        // Set request headers (if needed)
+        connection.setRequestProperty("Content-Type", "application/json")
+        // Add other headers as needed
+
+        // Enable input and output streams for the connection
+        connection.doInput = true
+        connection.doOutput = true
+
+        // Create the JSON request body
+        val jsonRequest = "{\"username\":\"$username\",\"password\":\"$password\",\"ticketID\":$ticket}"
+
+        // Write the JSON data to the output stream
+        val outputStream = DataOutputStream(connection.outputStream)
+        outputStream.write(jsonRequest.toByteArray(Charsets.UTF_8))
+        outputStream.flush()
+        outputStream.close()
+
+        // Get the response code from the server
+        val responseCode = connection.responseCode
+
+        if (responseCode == HttpURLConnection.HTTP_OK) {
+            // Read and handle the response from the server
+            val reader = BufferedReader(InputStreamReader(connection.inputStream))
+            val response = StringBuilder()
+            var line: String?
+            while (reader.readLine().also { line = it } != null) {
+                response.append(line)
+            }
+            reader.close()
+
+            // Return the response as a String
+            return response.toString()
+        } else {
+            // Handle the error (e.g., authentication failed)
+            // You can also throw an exception here if needed
+            return ""
+        }
+    }
+}

src/apps/Android/app/src/main/java/com/janishutz/libreevent/MainActivity.kt

@@ -4,6 +4,9 @@ import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import android.widget.Button
+import android.widget.EditText
+import android.app.AlertDialog
+import com.janishutz.libreevent.ApiClient
 
 class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -11,13 +14,54 @@ class MainActivity : AppCompatActivity() {
         setContentView(R.layout.activity_main)
 
         val loginButton = findViewById<Button>(R.id.loginButton)
+        val urlEditText = findViewById<EditText>(R.id.url)
+        val usernameEditText = findViewById<EditText>(R.id.username)
+        val passwordEditText = findViewById<EditText>(R.id.password)
+
         loginButton.setOnClickListener {
-            login()
+            val url = urlEditText.text.toString()
+            val username = usernameEditText.text.toString()
+            val password = passwordEditText.text.toString()
+            login( url, username, password )
         }
     }
 
-    private fun login() {
-        val switchIntent = Intent(this, ScanActivity::class.java)
-        startActivity(switchIntent)
+    private fun login( url: String, username: String, password: String ) {
+        val res = ApiClient().authenticateUser( url, username, password )
+        println( res )
+        if ( res == "authOk" ) {
+            val switchIntent = Intent(this, ScannerActivity::class.java)
+            startActivity(switchIntent)
+        } else if ( res == "status-code-non-ok" ) {
+            val alertDialogBuilder = AlertDialog.Builder(this)
+            alertDialogBuilder.setTitle("Username or password incorrect")
+            alertDialogBuilder.setMessage("Please ensure that the values entered are correct and try again")
+            alertDialogBuilder.setIcon(android.R.drawable.ic_dialog_alert)
+
+            alertDialogBuilder.setPositiveButton("OK") { dialog, _ ->
+                dialog.dismiss()
+            }
+            alertDialogBuilder.show()
+        } else if ( res == "error") {
+            val alertDialogBuilder = AlertDialog.Builder(this)
+            alertDialogBuilder.setTitle("Unable to connect")
+            alertDialogBuilder.setMessage("Please ensure that the url specified is correct.")
+            alertDialogBuilder.setIcon(android.R.drawable.ic_dialog_alert)
+
+            alertDialogBuilder.setPositiveButton("OK") { dialog, _ ->
+                dialog.dismiss()
+            }
+            alertDialogBuilder.show()
+        } else if ( res == "wrong") {
+            val alertDialogBuilder = AlertDialog.Builder(this)
+            alertDialogBuilder.setTitle("Username or password incorrect")
+            alertDialogBuilder.setMessage("Please ensure that the values entered are correct and try again")
+            alertDialogBuilder.setIcon(android.R.drawable.ic_dialog_alert)
+
+            alertDialogBuilder.setPositiveButton("OK") { dialog, _ ->
+                dialog.dismiss()
+            }
+            alertDialogBuilder.show()
+        }
     }
 }

src/apps/Android/app/src/main/java/com/janishutz/libreevent/ScannerActivity.kt

@@ -5,14 +5,18 @@ import android.content.pm.PackageManager
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import androidx.core.app.ActivityCompat
+import com.journeyapps.barcodescanner.BarcodeCallback
+import com.journeyapps.barcodescanner.BarcodeResult
+import com.journeyapps.barcodescanner.CaptureActivity
 import com.journeyapps.barcodescanner.CaptureManager
 import com.journeyapps.barcodescanner.DecoratedBarcodeView
 
-class ScanActivity : AppCompatActivity() {
+class ScannerActivity : CaptureActivity() {
 
     private lateinit var barcodeView: DecoratedBarcodeView
     private lateinit var captureManager: CaptureManager
 
+    private var lastScanned: String = ""
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_scanner)
@@ -32,6 +36,25 @@ class ScanActivity : AppCompatActivity() {
 
         captureManager.initializeFromIntent(intent, null)
         captureManager.decode()
+        barcodeView.decodeContinuous(object : BarcodeCallback {
+            override fun barcodeResult(result: BarcodeResult?) {
+                if (result != null) {
+                    val scannedData = result.text // This is the scanned data (e.g., QR code content)
+                    handleScanResult(scannedData)
+                }
+            }
+
+            override fun possibleResultPoints(resultPoints: List<com.google.zxing.ResultPoint>?) {
+                // Optional: Handle possible result points
+            }
+        })
+    }
+
+    private fun handleScanResult(result: String) {
+        if ( lastScanned != result ) {
+            println(result)
+            lastScanned = result
+        }
     }
 
     override fun onResume() {

src/apps/Android/app/src/main/java/com/janishutz/libreevent/backup.txt

@@ -0,0 +1,73 @@
+package com.janishutz.libreevent
+
+import android.Manifest
+import android.content.pm.PackageManager
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import androidx.core.app.ActivityCompat
+import com.journeyapps.barcodescanner.BarcodeCallback
+import com.journeyapps.barcodescanner.CaptureManager
+import com.journeyapps.barcodescanner.DecoratedBarcodeView
+
+class ScannerActivity : AppCompatActivity() {
+
+    private lateinit var barcodeView: DecoratedBarcodeView
+    private lateinit var captureManager: CaptureManager
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_scanner)
+
+        barcodeView = findViewById(R.id.barcodeScannerView)
+
+        // Check for camera permission and request if not granted
+        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
+            ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.CAMERA), CAMERA_PERMISSION_REQUEST)
+        } else {
+            setupScanner()
+        }
+    }
+
+    private fun setupScanner() {
+        captureManager = CaptureManager(this, barcodeView)
+
+        captureManager.initializeFromIntent(intent, null)
+        captureManager.decode()
+    }
+
+    private fun handleScanResult(result: String) {
+        // The `result` parameter contains the scanned data (e.g., QR code content)
+        // You can process it or send it as needed
+    }
+
+    override fun onResume() {
+        super.onResume()
+        captureManager.onResume()
+    }
+
+    override fun onPause() {
+        super.onPause()
+        captureManager.onPause()
+    }
+
+    // Pass savedInstanceState to onSaveInstanceState
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        captureManager.onSaveInstanceState(outState)
+    }
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        if (requestCode == CAMERA_PERMISSION_REQUEST) {
+            if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                setupScanner()
+            } else {
+                // Handle permission denied
+            }
+        }
+    }
+
+    companion object {
+        private const val CAMERA_PERMISSION_REQUEST = 1
+    }
+}

src/apps/Android/app/src/main/res/layout/activity_main.xml

@@ -20,7 +20,7 @@
         app:layout_constraintVertical_bias="0.157" />
 
     <EditText
-        android:id="@+id/editTextTextEmailAddress"
+        android:id="@+id/username"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginTop="52dp"
@@ -30,10 +30,10 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.497"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/editTextText" />
+        app:layout_constraintTop_toBottomOf="@+id/url" />
 
     <EditText
-        android:id="@+id/editTextText"
+        android:id="@+id/url"
         android:layout_width="302dp"
         android:layout_height="48dp"
         android:layout_marginTop="32dp"
@@ -46,7 +46,7 @@
         app:layout_constraintTop_toBottomOf="@+id/textView2" />
 
     <EditText
-        android:id="@+id/editTextTextPassword"
+        android:id="@+id/password"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginTop="16dp"
@@ -56,7 +56,7 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.502"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/editTextTextEmailAddress" />
+        app:layout_constraintTop_toBottomOf="@+id/username" />
 
     <Button
         android:id="@+id/loginButton"
@@ -66,7 +66,7 @@
         android:text="Log in"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/editTextTextPassword" />
+        app:layout_constraintTop_toBottomOf="@+id/password" />
 
     <TextView
         android:id="@+id/textView2"