from fastapi import FastAPI, Request
import requests
import logging
import os, json
from datetime import datetime
from google.oauth2 import service_account
from googleapiclient.discovery import build

# Existing service account JSON dictionary

# Retrieve the secret as a string
google_credentials = os.getenv("GOOGLE_CREDENTIALS")

# Parse the secret if it's stored as a JSON string
if google_credentials:
    json_api_dict = json.loads(google_credentials)
    print("Valid Credentials")
else:
    print("No secret found.")

app = FastAPI()
logging.basicConfig(level=logging.INFO)

# Set your credentials
CUSTOM_FIELD_ID = os.getenv("CUSTOM_FIELD_ID")

ACCESS_TOKEN = os.getenv("ACCESS_TOKEN")

def update_custom_field(task_id: str, value: str):
    """Updates the ClickUp task's custom field."""
    url = f"https://api.clickup.com/api/v2/task/{task_id}/field/{CUSTOM_FIELD_ID}"
    headers = {
        "Authorization": ACCESS_TOKEN,
        "Content-Type": "application/json"
    }
    payload = {"value": value}  # Payload should be a dictionary
    
    # Corrected to pass the payload correctly
    response = requests.post(url, json=payload, headers=headers)
    
    if response.status_code == 200:
        print(f"Custom field updated successfully for task {task_id}")
    else:
        print(f"Failed to update custom field: {response.text}")

def create_drive_folder(folder_name, month):
    creds = service_account.Credentials.from_service_account_info(json_api_dict)
    drive_service = build('drive', 'v3', credentials=creds)
    parent_folder_id = os.getenv("PARENT_FOLDER_ID")
    
    def search_folder(name, parent_id):
        query = f"name='{name}' and '{parent_id}' in parents and mimeType='application/vnd.google-apps.folder' and trashed=false"
        results = drive_service.files().list(q=query, fields='files(id, name, webViewLink)').execute()
        files = results.get('files', [])
        return files[0] if files else None
    
    month_folder = search_folder(month, parent_folder_id)
    if not month_folder:
        month_metadata = {'name': month, 'mimeType': 'application/vnd.google-apps.folder', 'parents': [parent_folder_id]}
        month_folder = drive_service.files().create(body=month_metadata, fields='id, webViewLink').execute()
    
    target_folder = search_folder(folder_name, month_folder['id'])
    if target_folder:
        return target_folder['webViewLink']
    
    folder_metadata = {'name': folder_name, 'mimeType': 'application/vnd.google-apps.folder', 'parents': [month_folder['id']]}
    folder = drive_service.files().create(body=folder_metadata, fields='id, webViewLink').execute()
    return folder['webViewLink']

@app.post("/webhook")
async def receive_webhook(request: Request):
    """Receives ClickUp webhook events for new tasks."""
    try:
        # Parse the JSON payload
        data = await request.json()
        logging.info(f"Received webhook: {data}")
        
        # Check if the event is 'taskCreated'
        if data.get("event") == "taskCreated":
            task_id = data.get("task_id")  # Task ID is in the top level of the data
            history_items = data.get("history_items", [])

            task_name = "Unnamed Task"  # Default if no name is found
            creation_timestamp = None  # Placeholder for creation timestamp

            # Loop through history_items to find task creation and task name
            for item in history_items:
                if item.get("field") == "task_creation":
                    # Ensure 'date' is an integer before division
                    creation_timestamp = int(item.get("date", 0))  # Convert to int if necessary

            # If we have a task_id, make an API call to get task details
            if task_id:
                task_name = get_task_details(task_id)

            # If a creation timestamp is found, convert it to a month
            if creation_timestamp:
                creation_date = datetime.utcfromtimestamp(creation_timestamp / 1000)  # Convert from milliseconds
                creation_month = creation_date.strftime("%b %Y")  # Format it as "Mon Year" (e.g., "Feb 2025")
            else:
                creation_month = "Unknown Month"

            logging.info(f"New Task Created: {task_name} (ID: {task_id})")
            logging.info(f"Task Creation Month: {creation_month}")
        
        else:
            logging.info(f"Received a different event: {data.get('event')}")
    
    except Exception as e:
        logging.error(f"Error processing webhook: {e}")

    # Update custom field "1- Drive Link" with a sample value
    drive_link = create_drive_folder(task_name, creation_month)
    update_custom_field(task_id, drive_link)
    
    return {"status": "success"}

def get_task_details(task_id: str):
    """Fetch task details from ClickUp API using task_id."""
    url = f"https://api.clickup.com/api/v2/task/{task_id}"
    headers = {
        "Authorization": ACCESS_TOKEN
    }
    
    # Make the API request to ClickUp
    response = requests.get(url, headers=headers)

    # Check if the request was successful (status code 200)
    if response.status_code == 200:
        # Parse and return the task details
        
        task_name = response.json()["name"]
        return task_name
    else:
        task_name = "Task name wasn't not found"
        return task_name