feat: add local web server control

2026-05-10 11:02:26 +00:00 · 2026-01-15 13:25:56 +01:00
parent c795f1bde6
commit 9d5fa2d305
8 changed files with 301 additions and 25 deletions
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -10,8 +10,8 @@ android {
        applicationId "com.stock.pignon"
        minSdkVersion 17
        targetSdkVersion 36
-        versionCode 1
-        versionName "0.1.0"
+        versionCode 2
+        versionName "0.2.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
@@ -41,6 +41,9 @@ dependencies {
    // GIF
    implementation 'com.github.bumptech.glide:glide:3.8.0'

+    // NanoHTTPD
+    implementation 'org.nanohttpd:nanohttpd:2.3.1'
+
    // Tests
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -4,6 +4,8 @@

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>

    <application
        android:allowBackup="true"
--- a/app/src/main/java/com/stock/pignon/CartActionHelper.java
+++ b/app/src/main/java/com/stock/pignon/CartActionHelper.java
@@ -12,7 +12,6 @@ import android.view.View;
 import android.widget.GridLayout;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-import android.widget.ImageView;

 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;
@@ -27,8 +26,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

-import com.bumptech.glide.Glide;
-
 /**
 * Action on shopping cart: validation, clearing, and persistence
 */
@@ -122,7 +119,9 @@ public class CartActionHelper {
     * Merges current cart items with the existing stock file on the SD Card.
     */
    private static void saveCartToExternalFile(List<CartItem> cartItems) {
-        File stockFile = new File(Environment.getExternalStorageDirectory(), Config.STOCK_FILE_NAME);
+        File dir = new File(Environment.getExternalStorageDirectory(), Config.EXTERNAL_DIR_NAME);
+        File stockFile = new File(dir, Config.STOCK_FILE_NAME);
+
        Gson gson = new Gson();
        Map<String, Integer> stockMap;

--- a/app/src/main/java/com/stock/pignon/ControlServer.java
+++ b/app/src/main/java/com/stock/pignon/ControlServer.java
@@ -0,0 +1,216 @@
+// ControlServer.java
+package com.stock.pignon;
+
+import android.os.Environment;
+
+import fi.iki.elonen.NanoHTTPD;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.List;
+
+/**
+ * Create a web server to remote management of app assets.
+ */
+// Inherit what is needed to build a web server
+public class ControlServer extends NanoHTTPD {
+
+    // Assets folders
+    private final File storageRoot = Environment.getExternalStorageDirectory();
+    private final File baseDir = new File(storageRoot, Config.EXTERNAL_DIR_NAME);
+    private final File imagesDir = new File(baseDir, Config.IMAGES_SUBDIR_NAME);
+
+    public ControlServer(int port) {
+        super(port);
+    }
+
+    /**
+     * Main method which receive remote request
+     */
+    @Override
+    public Response serve(IHTTPSession session) {
+        // Get requested address
+        String uri = session.getUri();
+
+        // Adapt URL to find the file : /stock.json become stock.json
+        if (uri.equals("/download_orders")) {
+            return downloadFile(Config.STOCK_FILE_NAME);
+        }
+        if (uri.equals("/download_json")) {
+            return downloadFile(Config.PIECES_FILE_NAME);
+        }
+
+        // File upload management
+        if (session.getMethod() == Method.POST) {
+            if (uri.equals("/upload_json")) {
+                return handleJsonUpload(session);
+            } else if (uri.equals("/upload_images")) {
+                return handleImagesUpload(session);
+            }
+        }
+
+        // Return UI
+        return newFixedLengthResponse(getHtmlResponse());
+    }
+
+    /**
+     * HTML UI for users
+     */
+    private String getHtmlResponse() {
+        return "<html>" +
+                "<head>" +
+                "<meta charset='UTF-8'>" +
+                "<meta name='viewport' content='width=device-width, initial-scale=1'>" +
+                "<style>" +
+                "body { font-family: sans-serif; line-height: 1.6; padding: 20px; color: #333; max-width: 800px; margin: auto; }" +
+                "h1 { color: #0049AF; border-bottom: 2px solid #0049AF; }" +
+                "h2 { color: #555; margin-top: 30px; }" +
+                ".card { background: #f4f4f4; padding: 15px; border-radius: 8px; margin-bottom: 20px; border: 1px solid #ddd; }" +
+                ".btn { display: inline-block; width: 280px; height: 45px; line-height: 45px; text-align: center; background: #0049AF; color: white; text-decoration: none; border-radius: 4px; border: none; cursor: pointer; font-weight: bold; box-sizing: border-box; padding: 0; -webkit-appearance: none; font-family: inherit; font-size: 14px; font-style: normal; letter-spacing: normal; }" +
+                ".btn-download { background: #2E7D32; }" +
+                "input[type='file'] { margin: 10px 0; }" +
+                ".status { font-weight: bold; color: green; }" +
+                "</style>" +
+                "</head>" +
+                "<body>" +
+                "<h1>Application : stock-pignon</h1>" +
+
+                "<h2>Gestion des stocks</h2>" +
+                "<div class='card'>" +
+                "<h3>Récupérer les sacoches des adhérent·es</h3>" +
+                "<p>Télécharger le décompte des pièces sorties de l'atelier.</p>" +
+                "<a href='/download_orders' class='btn'>Télécharger stock.json</a>" +
+                "</div>" +
+
+                "<h2>Modifier le catalogue</h2>" +
+                "<div class='card'>" +
+                "<h3>Gestion du fichier JSON</h3>" +
+                "<p>Catalogue actuel : <a href='/download_json' class='btn'>Télécharger pieces.json</a></p>" +
+                "<hr>" +
+                "<form action='/upload_json' method='post' enctype='multipart/form-data'>" +
+                "<p><strong>Envoyer un nouveau catalogue :</strong></p>" +
+                "<input type='file' name='json_file' accept='.json'><br>" +
+                "<input type='submit' value='Remplacer pieces.json' class='btn'>" +
+                "</form>" +
+                "</div>" +
+
+                "<div class='card'>" +
+                "<h3>Gestion des images</h3>" +
+                "<form action='/upload_images' method='post' enctype='multipart/form-data'>" +
+                "<p><strong>Ajouter/Modifier des images (PNG/JPG) :</strong></p>" +
+                "<input type='file' name='images' accept='image/*' multiple><br>" +
+                "<input type='submit' value='Envoyer les images' class='btn'>" +
+                "</form>" +
+                "</div>" +
+
+                "</body>" +
+                "</html>";
+    }
+
+    /**
+     * Manage JSON sent by remote.
+     */
+    private Response handleJsonUpload(IHTTPSession session) {
+        Map<String, String> tmpFiles = new HashMap<>();
+        try {
+            session.parseBody(tmpFiles);
+            // NanoHTTPD stocke le fichier avec le nom du champ HTML (json_file)
+            String tmpPath = tmpFiles.get("json_file");
+            if (tmpPath == null) return newFixedLengthResponse("❌ Aucun fichier reçu.");
+
+            File src = new File(tmpPath);
+            File dest = new File(baseDir, Config.PIECES_FILE_NAME);
+
+            copyFile(src, dest);
+            return newFixedLengthResponse("✅ Catalogue mis à jour ! <a href='/'>Retour</a>");
+        } catch (Exception e) {
+            return newFixedLengthResponse("❌ Erreur JSON : " + e.getMessage());
+        }
+    }
+
+    /**
+     * Manage multiple images sent by remote.
+     */
+    private Response handleImagesUpload(IHTTPSession session) {
+        Map<String, String> tmpFiles = new HashMap<>();
+        try {
+            session.parseBody(tmpFiles);
+
+            if (!imagesDir.exists() && !imagesDir.mkdirs()) {
+                return newFixedLengthResponse(Response.Status.INTERNAL_ERROR, MIME_PLAINTEXT,
+                        "❌ Erreur : Impossible de créer le dossier des images sur la tablette.");
+            }
+
+            int count = 0;
+
+            // On parcourt les fichiers temporaires créés par NanoHTTPD
+            for (Map.Entry<String, String> entry : tmpFiles.entrySet()) {
+                // NanoHTTPD indexe les envois multiples (images, images1, images2...)
+                if (entry.getKey().startsWith("images")) {
+                    String tmpPath = entry.getValue();
+
+                    // Récupération sécurisée des paramètres pour obtenir le nom original
+                    List<String> params = session.getParameters().get(entry.getKey());
+
+                    if (params != null && !params.isEmpty()) {
+                        // Nettoyage du nom de fichier (pour ne garder que "image.jpg" sans le chemin PC)
+                        String originalName = new File(params.get(0)).getName();
+
+                        File src = new File(tmpPath);
+                        File dest = new File(imagesDir, originalName);
+
+                        copyFile(src, dest);
+                        count++;
+                    }
+                }
+            }
+
+            return newFixedLengthResponse("✅ " + count + " images enregistrées ! <a href='/'>Retour</a>");
+
+        } catch (Exception e) {
+            return newFixedLengthResponse(Response.Status.INTERNAL_ERROR, MIME_PLAINTEXT,
+                    "❌ Erreur serveur : " + e.getMessage());
+        }
+    }
+
+    /**
+     * Prepare local file to send it to remote.
+     */
+    private Response downloadFile(String filename) {
+        File file = new File(baseDir, filename);
+        if (!file.exists()) {
+            return newFixedLengthResponse(Response.Status.NOT_FOUND, MIME_PLAINTEXT, "❌ Fichier non trouvé : " + filename);
+        }
+        try {
+            InputStream is = new FileInputStream(file);
+            Response res = newChunkedResponse(Response.Status.OK, "application/octet-stream", is);
+
+            // Force file download name
+            res.addHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");
+
+            return res;
+        } catch (IOException e) {
+            return newFixedLengthResponse("❌ Erreur de lecture.");
+        }
+    }
+
+    /**
+     * Utility method to copy file byte per byte.
+     * Not always possible to simply move a file on Android.
+     */
+    private void copyFile(File src, File dst) throws IOException {
+        try (InputStream in = new FileInputStream(src);
+             OutputStream out = new FileOutputStream(dst)) {
+            byte[] buf = new byte[1024];
+            int len;
+            while ((len = in.read(buf)) > 0) {
+                out.write(buf, 0, len);
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/stock/pignon/MainActivity.java
+++ b/app/src/main/java/com/stock/pignon/MainActivity.java
@@ -1,3 +1,4 @@
+// MainActivity.java
 package com.stock.pignon;

 import android.graphics.Color;
@@ -31,7 +32,7 @@ public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";

-    // UI Components
+    // UI components
    private LinearLayout cartList;
    private LinearLayout homeLayout;
    private LinearLayout categoryItemsLayout;
@@ -39,6 +40,9 @@ public class MainActivity extends AppCompatActivity {
    private GridLayout gridPieces;
    private ImageView mainImage;

+    // Server component
+    private ControlServer server;
+
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
@@ -74,6 +78,45 @@ public class MainActivity extends AppCompatActivity {

        // Initial cart visual sync
        CartViewHelper.updateCartView(cartList, this);
+
+        // Action bar
+        if (getSupportActionBar() != null) {
+            getSupportActionBar().setDisplayShowHomeEnabled(true);
+            getSupportActionBar().setTitle(" 🚲 Atelier du Pignon - Gestion du stock à prix libre");
+        }
+
+        // Launch server
+        server = new ControlServer(8080);
+        try {
+            server.start();
+            String url = "http://" + getDeviceIP() + ":8080";
+
+            // On met l'URL directement dans le sous-titre de l'ActionBar
+            if (getSupportActionBar() != null) {
+                getSupportActionBar().setSubtitle("🟢 Serveur actif : " + url);
+            }
+            Log.i(TAG, "Serveur démarré sur : " + url);
+        } catch (IOException e) {
+            if (getSupportActionBar() != null) {
+                getSupportActionBar().setSubtitle("🔴 Erreur serveur : Port 8080 occupé");
+            }
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // Ensure cart is up to date if returning to the activity
+        CartViewHelper.updateCartView(cartList, this);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        if (server != null) {
+            server.stop();
+            Log.i(TAG, "Serveur arrêté.");
+        }
    }

    /**
@@ -239,13 +282,6 @@ public class MainActivity extends AppCompatActivity {
        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, getResources().getDisplayMetrics());
    }

-    @Override
-    protected void onResume() {
-        super.onResume();
-        // Ensure cart is up to date if returning to the activity
-        CartViewHelper.updateCartView(cartList, this);
-    }
-
    private void copyAssetsIfEmpty() {
        File folder = new File(Environment.getExternalStorageDirectory(), Config.EXTERNAL_DIR_NAME);

@@ -301,4 +337,26 @@ public class MainActivity extends AppCompatActivity {
            Log.e("MainActivity", "Erreur copie asset: " + assetName, e);
        }
    }
+
+    /**
+     * Get device IP to print it to users for easy remote control
+     */
+    private String getDeviceIP() {
+        try {
+            java.util.Enumeration<java.net.NetworkInterface> interfaces = java.net.NetworkInterface.getNetworkInterfaces();
+            while (interfaces.hasMoreElements()) {
+                java.net.NetworkInterface iface = interfaces.nextElement();
+                java.util.Enumeration<java.net.InetAddress> addresses = iface.getInetAddresses();
+                while (addresses.hasMoreElements()) {
+                    java.net.InetAddress addr = addresses.nextElement();
+                    if (!addr.isLoopbackAddress() && addr instanceof java.net.Inet4Address) {
+                        return addr.getHostAddress();
+                    }
+                }
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "Erreur IP", e);
+        }
+        return "127.0.0.1";
+    }
 }
--- a/app/src/main/res/values-night/themes.xml
+++ b/app/src/main/res/values-night/themes.xml
@@ -2,9 +2,9 @@
 <resources xmlns:tools="http://schemas.android.com/tools">

    <style name="Theme.Pignon" parent="Theme.AppCompat.Light.DarkActionBar">
-        <item name="colorPrimary">@color/purple_500</item>
-        <item name="colorPrimaryDark">@color/purple_700</item>
-        <item name="colorAccent">@color/teal_200</item>
+        <item name="colorPrimary">@color/pignon_blue</item>
+        <item name="colorPrimaryDark">@color/pignon_blue_dark</item>
+        <item name="colorAccent">@color/pignon_blue</item>
    </style>

 </resources>
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="purple_500">#FF6200EE</color>
-    <color name="purple_700">#FF3700B3</color>
-    <color name="teal_200">#FF03DAC5</color>
+    <color name="pignon_blue">#0049AF</color>
+    <color name="pignon_blue_dark">#003580</color>
+    <color name="white">#FFFFFF</color>
 </resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -2,11 +2,9 @@
 <resources xmlns:tools="http://schemas.android.com/tools">

    <style name="Theme.Pignon" parent="Theme.AppCompat.Light.DarkActionBar">
-        <item name="colorPrimary">@color/purple_500</item>
-        <item name="colorPrimaryDark">@color/purple_700</item>
-        <item name="colorAccent">@color/teal_200</item>
-
-        <item name="actionBarSize">40dp</item>
+        <item name="colorPrimary">@color/pignon_blue</item>
+        <item name="colorPrimaryDark">@color/pignon_blue_dark</item>
+        <item name="colorAccent">@color/pignon_blue</item>
    </style>

 </resources>