Medplat chatbot

.gitignore

@@ -19,10 +19,17 @@
 *.tar.gz
 *.rar
 
+# Ignore environment files
+.env
+
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 replay_pid*
 /medplat-web/target/
 /medplat-ui/nbproject/private/
 /medplat-ui/bower_components/
 /medplat-ui/node_modules/
+/medplat_chatbot_ui/node_modules/
+/medplat_chatbot_backend/rasa_project/.rasa
+/medplat_chatbot_backend/models
+/medplat_chatbot_backend/rasa_project/actions/ai.env

medplat_chatbot_backend/app.py

@@ -0,0 +1,101 @@
+from flask import Flask, request, jsonify
+import requests
+from datetime import datetime
+from flask_cors import CORS
+import base64
+from PIL import Image
+import pytesseract
+from io import BytesIO
+import logging
+import os
+
+app = Flask(__name__)
+CORS(app)  # Enable CORS for frontend communication
+logging.basicConfig(level=logging.DEBUG)
+
+# ------------------- Configuration -------------------
+MIDDLEWARE_CHAT_URL = os.environ.get("MIDDLEWARE_CHAT_URL", "http://127.0.0.1:8080/chat")
+chat_memory = []  # In-memory chat memory (use DB in production)
+
+# ------------------- Chat Endpoint -------------------
+@app.route("/send_message", methods=["POST"])
+def send_message():
+    data = request.json
+    user_msg = (data.get("message") or "").strip()
+    now = datetime.now().strftime("%H:%M")
+
+    chat_memory.append({"sender": "user", "text": user_msg, "time": now})
+
+    try:
+        payload = {"sender": "web_user", "message": user_msg}
+        response = requests.post(MIDDLEWARE_CHAT_URL, json=payload, timeout=80)
+        response.raise_for_status()
+        bot_msgs = response.json()
+        responses = []
+
+        for bot_msg in bot_msgs:
+            msg = {
+                "sender": "bot",
+                "text": bot_msg.get("text", ""),
+                "time": datetime.now().strftime("%H:%M"),
+            }
+            if "buttons" in bot_msg:
+                msg["buttons"] = bot_msg["buttons"]
+
+            chat_memory.append(msg)
+            responses.append(msg)
+
+        return jsonify(responses)
+
+    except requests.exceptions.RequestException as req_err:
+        logging.exception("Error calling middleware /chat")
+        error_msg = {
+            "sender": "bot",
+            "text": f"⚠️ Error: {req_err}",
+            "time": datetime.now().strftime("%H:%M")
+        }
+        chat_memory.append(error_msg)
+        return jsonify([error_msg]), 500
+
+# ------------------- OCR Endpoint -------------------
+@app.route("/process_ocr", methods=["POST"])
+def process_ocr():
+    try:
+        data = request.json
+        logging.debug(f"Received data keys: {list(data.keys())}")
+
+        base64_image = data.get("image")
+        if not base64_image:
+            return jsonify({"error": "No image data received"}), 400
+
+        # Decode base64 and convert to image
+        try:
+            image_data = base64.b64decode(base64_image)
+            image = Image.open(BytesIO(image_data))
+        except Exception:
+            logging.exception("Image decoding failed")
+            return jsonify({"error": "Failed to decode image"}), 400
+
+        # OCR using pytesseract
+        try:
+            # Cross-platform: use environment variable if set, otherwise default detection
+            pytesseract_path = os.environ.get("TESSERACT_CMD")
+            if pytesseract_path:
+                pytesseract.pytesseract.tesseract_cmd = pytesseract_path
+
+            extracted_text = pytesseract.image_to_string(image)
+        except Exception:
+            logging.exception("OCR failed")
+            return jsonify({"error": "OCR processing failed"}), 500
+
+        return jsonify({"text": extracted_text.strip()})
+
+    except Exception:
+        logging.exception("Unexpected error in /process_ocr")
+        return jsonify({"error": "Internal server error"}), 500
+
+# ------------------- Main -------------------
+if __name__ == "__main__":
+    port = int(os.environ.get("PORT", 3000))
+    debug_mode = os.environ.get("DEBUG", "True").lower() == "true"
+    app.run(host="0.0.0.0", port=port, debug=debug_mode)

medplat_chatbot_backend/dockerfile

@@ -0,0 +1,26 @@
+# Use official Rasa image
+FROM rasa/rasa:3.6.20-full
+
+ARG ENV=development
+ENV ENV=${ENV}
+
+WORKDIR /app
+
+USER root
+COPY rasa_project/requirements.txt .
+
+RUN pip install --break-system-packages -r requirements.txt
+
+COPY rasa_project/ /app/rasa_project/
+COPY start.sh /app/start.sh
+
+WORKDIR /app
+RUN chmod +x start.sh
+
+USER 1001
+EXPOSE 5005 5055
+
+# Fix to override default Rasa entrypoint
+ENTRYPOINT ["/bin/bash"]
+CMD ["./start.sh"]
+