'''
Copyright 2024 Infosys Ltd.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
'''

import os
from flask import Flask, request, jsonify
from flask_swagger_ui import get_swaggerui_blueprint
from config.logger import CustomLogger, request_id_var
from waitress import serve
from werkzeug.exceptions import HTTPException, UnsupportedMediaType
from mapper.mapper import *

# ----------------------
# Create necessary log directories to avoid runtime warnings
os.makedirs("/responsible-ai/logs", exist_ok=True)
os.makedirs("/aicloud/logs", exist_ok=True)
# ----------------------

SWAGGER_URL = '/rai/v1/raimoderationmodels/docs'  
API_URL = '/static/swagger.json'

swaggerui_blueprint = get_swaggerui_blueprint(
    SWAGGER_URL, 
    API_URL
)

log = CustomLogger()
app = Flask(__name__)
app.register_blueprint(swaggerui_blueprint)

# ----------------------
# Function to load all models before starting server
def load_models():
    from routing.injectionRouter import init_injection_model
    from routing.detoxifyRouter import init_detoxify_model
    from routing.embedingRouter import init_embed_model
    from routing.privacyRouter import init_privacy_model
    from routing.topicRouter import init_topic_model

    init_injection_model()
    init_detoxify_model()
    init_embed_model()
    init_privacy_model()
    init_topic_model()
# ----------------------

# ----------------------
# Function to register all routers
def register_routers():
    from routing.injectionRouter import injection_router
    from routing.detoxifyRouter import detoxify_router
    from routing.embedingRouter import embed_router
    from routing.privacyRouter import privacy_router
    from routing.topicRouter import topic_router
    from routing.sentimentRouter import sentiment_router
    from routing.invisibletextRouter import invisibletext_router
    from routing.gibberishRouter import gibberish_router
    from routing.bancodeRouter import bancode_router
    # from routing.safety_router import img_router

    routers = [
        injection_router,
        detoxify_router,
        embed_router,
        privacy_router,
        topic_router,
        sentiment_router,
        invisibletext_router,
        gibberish_router,
        bancode_router
        # img_router
    ]

    for r in routers:
        app.register_blueprint(r, url_prefix='/rai/v1/raimoderationmodels')
# ----------------------

# ----------------------
# Error handling
def handle_http_exception(exc):
    response = jsonify({"error": exc.description})
    response.status_code = exc.code
    return response

@app.errorhandler(HTTPException)
def handle_all_http_exceptions(exc):
    return handle_http_exception(exc)

def handle_unsupported_mediatype(exc):
    return jsonify({"error": "Unsupported media type"}), 415

@app.errorhandler(UnsupportedMediaType)
def handle_all_unsupported_mediatype_exceptions(exc):
    return handle_unsupported_mediatype(exc)
# ----------------------

if __name__ == "__main__":
    load_models()       # Load models before registering routes
    register_routers()  # Register routers after models are loaded

    serve(
        app,
        host='0.0.0.0',
        port=7860,
        threads=int(os.getenv('THREADS', 1)),
        connection_limit=int(os.getenv('CONNECTION_LIMIT', 500)),
        channel_timeout=int(os.getenv('CHANNEL_TIMEOUT', 120))
    )