"""HTTP adapters for chat; business logic lives in services."""

from flask import Blueprint, Response, request, stream_with_context

from .. import business_service, chat_service

bp = Blueprint('chat', __name__)

@bp.route('/stream_chat', methods=['GET', 'POST'])
def stream_chat():
    if request.method == 'POST':
        data = request.get_json(silent=True) or {}
        msg = (data.get('msg') or '').strip()
        conv_id = data.get('conv_id')
        try:
            conv_id = int(conv_id) if conv_id else None
        except (TypeError, ValueError):
            conv_id = None
    else:
        msg = (request.args.get('msg') or '').strip()
        conv_id = request.args.get('conv_id', type=int)
    frames, headers = chat_service.create_chat_stream(msg, conv_id)
    body = frames if isinstance(frames, str) else stream_with_context(frames)
    return Response(body, mimetype='text/event-stream', headers=headers)


@bp.route('/api/feedback', methods=['POST'])
def feedback():
    return business_service.feedback(request.get_json(silent=True) or {})