feat: DB for patterns

bot/config.py

@@ -1,7 +1,43 @@
 import json
+import os
+from database import get_patterns, add_pattern
 
-try:
-    with open("patterns.json", "r") as f:
-        message_patterns = json.load(f)
-except FileNotFoundError:
-    message_patterns = []  # Fallback to an empty list if the file doesn't exist
+PATTERNS_FILE = "patterns.json"
+
+BOT_DATA_DIR = os.getenv("BOT_DATA_DIR", "/bot-data")
+MIGRATION_FLAG = os.path.join(BOT_DATA_DIR, "migration_done.flag")
+
+
+def migrate_patterns():
+    """Migrate patterns.json to the database if not already done."""
+    if os.path.exists(MIGRATION_FLAG):
+        print("Not performing migration: already done")
+        return
+
+    if not os.path.exists(PATTERNS_FILE):
+        return
+
+    try:
+        with open(PATTERNS_FILE, "r") as f:
+            patterns = json.load(f)
+    except (json.JSONDecodeError, FileNotFoundError):
+        patterns = []
+
+    for pattern in patterns:
+        add_pattern(pattern["regex"], pattern["response"])
+
+    with open(MIGRATION_FLAG, "w") as f:
+        f.write("done")
+
+    print("Migration completed: patterns.json -> Database")
+
+
+migrate_patterns()
+
+message_patterns = get_patterns()
+
+
+def update_patterns(regex: str, response: str):
+    """update patterns in memory."""
+    message_patterns.append({"regex": regex, "response": response})
+    print(f"Pattern added in memory: {regex}")