Add mining mode selection (SHA256/Scrypt) via GUI

app.py

@@ -17,7 +17,14 @@ def index():
 @app.route('/settings')
 def settings():
     config = config_mgr.load_config()
-    return render_template('settings.html', config=config, active_page='settings')
+    
+    # Load mode
+    mode = 'sha256'
+    if os.path.exists('mining_mode.conf'):
+        with open('mining_mode.conf', 'r') as f:
+            mode = f.read().strip()
+            
+    return render_template('settings.html', config=config, active_page='settings', mode=mode)
 
 @app.route('/api/data')
 def api_data():
@@ -56,6 +63,14 @@ def save_settings():
     
     new_config = config_mgr.load_config() # Start with existing
     
+    # Save mode
+    mode = request.form.get('mining_mode', 'sha256')
+    try:
+        with open('mining_mode.conf', 'w') as f:
+            f.write(mode)
+    except Exception as e:
+        print(f"Error saving mode: {e}")
+    
     # Update simple fields
     new_config['gridseed-options'] = f"freq={request.form.get('freq', '850')}"
     

install.sh

@@ -122,8 +122,8 @@ After=network.target necrohash-gui.service
 [Service]
 User=$USER
 WorkingDirectory=$TARGET_DIR
-# Log stdout/stderr to file for the GUI to read
-ExecStart=/bin/sh -c 'exec /usr/local/bin/cgminer --gridseed-options freq=850 -c $TARGET_DIR/cgminer.conf >> $TARGET_DIR/cgminer.log 2>&1'
+# Use wrapper script to handle mode switching (scrypt/sha256)
+ExecStart=$TARGET_DIR/miner_wrapper.sh
 Restart=always
 RestartSec=10
 

miner_wrapper.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+# Wrapper script to start cgminer with correct flags based on selected mode
+
+MODE_FILE="mining_mode.conf"
+CONF_FILE="cgminer.conf"
+LOG_FILE="cgminer.log"
+
+# Default mode
+MODE="sha256"
+
+if [ -f "$MODE_FILE" ]; then
+    MODE=$(cat "$MODE_FILE" | tr -d '[:space:]')
+fi
+
+FLAGS=""
+
+if [ "$MODE" == "scrypt" ]; then
+    FLAGS="--scrypt"
+elif [ "$MODE" == "dual" ]; then
+    # Dual mode usually implies scrypt flag + gridseed options, but purely depends on cgminer version behavior.
+    # Often dual mode is default if scrypt is enabled? 
+    # Actually for gridseed: 
+    # SHA256 only: no --scrypt
+    # Scrypt only: --scrypt --gridseed-options=scrypt
+    # Dual: --scrypt --gridseed-options=... (default)
+    # Let's assume:
+    # SHA256: (no scrypt flag)
+    # Scrypt: --scrypt
+    FLAGS="--scrypt"
+fi
+
+echo "Starting miner in mode: $MODE with flags: $FLAGS" > "$LOG_FILE"
+
+# Execute cgminer
+# Note: we use exec to replace the shell process
+exec /usr/local/bin/cgminer $FLAGS --gridseed-options freq=850 -c "$CONF_FILE" >> "$LOG_FILE" 2>&1

templates/settings.html

@@ -17,6 +17,18 @@
                 <div class="card-header border-secondary">Konfiguration</div>
                 <div class="card-body">
                     <form action="{{ url_for('save_settings') }}" method="POST">
+                        <h5 class="card-title text-info mb-3">Allgemein</h5>
+                        
+                        <div class="mb-3">
+                            <label for="mining_mode" class="form-label text-white">Mining Modus</label>
+                            <select class="form-select bg-black text-white border-secondary" id="mining_mode" name="mining_mode">
+                                <option value="sha256" {% if mode == 'sha256' %}selected{% endif %}>SHA-256 (Bitcoin / Peercoin)</option>
+                                <option value="scrypt" {% if mode == 'scrypt' %}selected{% endif %}>Scrypt (Litecoin / Dogecoin)</option>
+                            </select>
+                            <div class="form-text text-muted">Ändert das Startverhalten des Miners.</div>
+                        </div>
+
+                        <hr class="border-secondary">
                         <h5 class="card-title text-info mb-3">Pool Einstellungen</h5>
                         
                         <!-- Assuming single pool editing for MVP -->