import os
from datetime import datetime
from pymongo import MongoClient
from dotenv import load_dotenv

# Load environment variables
load_dotenv()

# MongoDB Configuration
MONGO_URI = os.getenv("MONGO_URI")
DB_NAME = os.getenv("MONGO_DB")
COLLECTION_NAME = "analysis_results"

# Initialize MongoDB client
client = MongoClient(MONGO_URI)
db = client[DB_NAME]
collection = db[COLLECTION_NAME]


def insert_analysis_result(
    video_name: str,
    offer_details: str,
    target_audience: str,
    specific_hook: str,
    additional_context: str,
    response: dict
):
    """Insert a new video analysis result"""
    document = {
        "video_name": video_name,
        "offer_details": offer_details,
        "target_audience": target_audience,
        "specific_hook": specific_hook,
        "additional_context": additional_context,
        "response": response,
        "created_at": datetime.utcnow()
    }
    result = collection.insert_one(document)
    return str(result.inserted_id)


def get_all_results(limit: int = 20):
    """Fetch all saved results, sorted by newest"""
    return list(collection.find().sort("created_at", -1).limit(limit))


def get_result_by_id(doc_id):
    """Fetch a specific analysis by _id"""
    from bson import ObjectId
    return collection.find_one({"_id": ObjectId(doc_id)})


def delete_result_by_id(doc_id):
    """Delete a specific analysis by _id"""
    from bson import ObjectId
    result = collection.delete_one({"_id": ObjectId(doc_id)})
    return result.deleted_count > 0