Initial commit: Gridseed WebGUI implementation

config_manager.py

@@ -0,0 +1,43 @@
+import json
+import os
+
+class ConfigManager:
+    def __init__(self, config_path='cgminer.conf'):
+        self.config_path = config_path
+
+    def load_config(self):
+        if not os.path.exists(self.config_path):
+            return self.get_default_config()
+        try:
+            with open(self.config_path, 'r') as f:
+                return json.load(f)
+        except:
+            return self.get_default_config()
+
+    def save_config(self, config_data):
+        try:
+            # Validate numeric fields
+            if 'freq' in config_data:
+                config_data['freq'] = int(config_data['freq'])
+                
+            with open(self.config_path, 'w') as f:
+                json.dump(config_data, f, indent=4)
+            return True
+        except Exception as e:
+            print(f"Error saving config: {e}")
+            return False
+
+    def get_default_config(self):
+        return {
+            "pools": [
+                {
+                    "url": "stratum+tcp://p2pool.org:9332",
+                    "user": "user",
+                    "pass": "password"
+                }
+            ],
+            "api-listen": True,
+            "api-allow": "W:127.0.0.1",
+            "gridseed-options": "freq=850,chips=5",
+            "freq": "850" 
+        }