import requests
from bs4 import BeautifulSoup

def crawl_web_page(url):
    # Make a request to the URL
    response = requests.get(url)
    
    # Check if the request was successful
    if response.status_code == 200:
        # Get the content of the page
        page_content = response.content
        
        # Parse the content using BeautifulSoup
        soup = BeautifulSoup(page_content, 'html.parser')
        
        # Get all the links on the page
        links = [link.get('href') for link in soup.find_all('a')]
        
        # Return the links
        return links
    else:
        return None

# Example usage
start_url = "https://www.example.com"
links = crawl_web_page(start_url)

if links:
    for link in links:
        print(link)
else:
    print("Failed to retrieve page content.")

import requests
import re

def search_google(query):
    query = query.replace(" ", "+")
    url = f"https://www.google.com/search?q={query}"
    headers = {
        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36'
    }
    response = requests.get(url, headers=headers)
    if response.status_code == 200:
        return response.text
    else:
        return None

def parse_results(html_content):
    links = re.findall(r'<a href="(.*?)"', html_content)
    return links

def get_google_results(query):
    html_content = search_google(query)
    if html_content:
        return parse_results(html_content)
    else:
        return None

import java.util.*;
import java.util.concurrent.*;

class WebCrawler {
    private Set<String> visitedUrls;
    private ExecutorService executorService;

    public WebCrawler() {
        this.visitedUrls = new HashSet<>();
        this.executorService = Executors.newFixedThreadPool(10);
    }

    public void crawl(String startingUrl) {
        submitTask(startingUrl);

        executorService.shutdown();
        try {
            executorService.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    private void submitTask(String url) {
        if (visitedUrls.contains(url)) {
            return;
        }

        visitedUrls.add(url);

        Callable<Void> task = () -> {
            // Process the URL and extract information
            System.out.println("Processing URL: " + url);
            // ...

            // Get links from the page
            List<String> links = getLinksFromPage(url);
            for (String link : links) {
                submitTask(link);
            }

            return null;
        };

        executorService.submit(task);
    }

    private List<String> getLinksFromPage(String url) {
        // Simulated method to get links from the page
        List<String> links = new ArrayList<>();
        // ...

        return links;
    }
}

public class WebCrawlerApp {
    public static void main(String[] args) {
        WebCrawler webCrawler = new WebCrawler();

        // Start crawling from a specific URL
        webCrawler.crawl("https://example.com");
    }
}

from flask import Flask, jsonify, request
import requests
from bs4 import BeautifulSoup

app = Flask(__name__)

# Endpoint for crawling a website and extracting links
@app.route('/crawl', methods=['POST'])
def crawl_website():
    # Get URL from request body
    url = request.json['url']
    
    # Send request to URL and get HTML content
    response = requests.get(url)
    html_content = response.content
    
    # Parse HTML content with BeautifulSoup and extract links
    soup = BeautifulSoup(html_content, 'html.parser')
    links = []
    for link in soup.find_all('a'):
        href = link.get('href')
        if href:
            links.append(href)
    
    # Return list of links
    return jsonify(links)

# Endpoint for checking if a website is up or down
@app.route('/check', methods=['POST'])
def check_website():
    # Get URL from request body
    url = request.json['url']
    
    # Send request to URL and check status code
    response = requests.get(url)
    if response.status_code == 200:
        return jsonify({'message': 'Website is up!'})
    else:
        return jsonify({'message': 'Website is down!'})

if __name__ == '__main__':
    app.run(debug=True)

import requests
from bs4 import BeautifulSoup

# Define the URL to crawl
url = 'https://www.example.com/'

# Send a GET request to the URL
response = requests.get(url)

# Parse the HTML content of the page using BeautifulSoup
soup = BeautifulSoup(response.content, 'html.parser')

# Find all links on the page and print their titles and URLs
for link in soup.find_all('a'):
    title = link.get('title')
    if not title:
        title = link.text
    print(title, link.get('href'))

import requests
from bs4 import BeautifulSoup

# Define the URL to crawl
url = 'https://www.example.com/'

# Send a GET request to the URL
response = requests.get(url)

# Parse the HTML content of the page using BeautifulSoup
soup = BeautifulSoup(response.content, 'html.parser')

# Extract useful information from the page
title = soup.find('title').text
description = soup.find('meta', {'name': 'description'}).get('content')
keywords = soup.find('meta', {'name': 'keywords'}).get('content')

# Save the information to a database or file
# ...

# Monitor the page for changes
while True:
    # Send a GET request to the URL
    response = requests.get(url)

    # Parse the HTML content of the page using BeautifulSoup
    soup = BeautifulSoup(response.content, 'html.parser')

    # Check if the title, description, or keywords have changed
    new_title = soup.find('title').text
    new_description = soup.find('meta', {'name': 'description'}).get('content')
    new_keywords = soup.find('meta', {'name': 'keywords'}).get('content')
    if new_title != title or new_description != description or new_keywords != keywords:
        print('Page has changed!')
        # Send a notification email or update the database
        # ...

    # Wait for some time before checking again
    time.sleep(3600)  # Check every hour

import requests

# Define the URL to archive
url = 'https://www.example.com/'

# Send a POST request to the Wayback Machine API to archive the URL
response = requests.post('https://web.archive.org/save/' + url)

# Check the response status code to see if the archiving was successful
if response.status_code == 200:
    print('URL has been archived successfully!')
else:
    print('Error archiving URL: ' + response.text)

import requests

# Define the query to search for
query = 'example query'

# Define the URL to search on
url = 'https://www.google.com/search?q=' + query

# Send a GET request to the URL
response = requests.get(url)

# Parse the HTML content of the page using BeautifulSoup
soup = BeautifulSoup(response.content, 'html.parser')

# Find all links on the page and print their URLs
for link in soup.find_all('a'):
    href = link.get('href')
    if href.startswith('/url?q='):
        url = href.split('=')[1]
        if not url.startswith('http'):
            url = 'https://' + url
        # Send a GET request to the URL and search for the query in the content
        response = requests.get(url)
        if response.status_code == 200 and query in response.text:
            print('Copyright infringement found on', url)

from collections import deque
from urllib.parse import urlparse

class Frontier:
    def __init__(self):
        self.queue = deque()
        self.visited = set()

    def enqueue(self, url):
        normalized_url = self.normalize_url(url)
        if normalized_url not in self.visited:
            self.queue.append(normalized_url)
            self.visited.add(normalized_url)

    def dequeue(self):
        return self.queue.popleft()

    def normalize_url(self, url):
        # Normalize URL by removing trailing slashes and resolving relative URLs
        parsed_url = urlparse(url)
        return parsed_url.geturl()

    def is_empty(self):
        return len(self.queue) == 0

# Example usage
frontier = Frontier()
frontier.enqueue("https://example.com/page1")
frontier.enqueue("https://example.com/page2")
frontier.enqueue("https://example.com/page1")  # Duplicate URL, should be filtered out
print(frontier.dequeue())  # Output: https://example.com/page1
print(frontier.dequeue())  # Output: https://example.com/page2
print(frontier.is_empty())  # Output: True

class Crawler:
    def __init__(self, policy):
        self.policy = policy

    def should_crawl(self, url):
        # Determine whether to crawl the given URL based on the crawling policy
        if self.policy == "breadth-first":
            return True
        elif self.policy == "depth-first":
            return False
        else:
            # Add custom crawling policy logic here
            return True

    def prioritize_crawl(self, urls):
        # Prioritize the URLs based on the crawling policy
        if self.policy == "breadth-first":
            return urls
        elif self.policy == "depth-first":
            return list(reversed(urls))
        else:
            # Add custom prioritization logic here
            return urls

# Example usage
crawler = Crawler("breadth-first")
if crawler.should_crawl("https://example.com/page1"):
    print("Crawl page1")
else:
    print("Skip page1")

urls_to_crawl = ["https://example.com/page1", "https://example.com/page2", "https://example.com/page3"]
prioritized_urls = crawler.prioritize_crawl(urls_to_crawl)
for url in prioritized_urls:
    print(url)

class DistributedCrawler:
    def __init__(self, num_nodes):
        self.num_nodes = num_nodes

    def partition_urls(self, urls):
        # Partition the list of URLs among the distributed nodes
        partitions = [[] for _ in range(self.num_nodes)]
        for i, url in enumerate(urls):
            partitions[i % self.num_nodes].append(url)
        return partitions

    def balance_load(self, nodes):
        # Balance the load across the distributed nodes
        avg_load = len(nodes) // self.num_nodes
        balanced_nodes = [[] for _ in range(self.num_nodes)]
        for i, node in enumerate(nodes):
            balanced_nodes[i % self.num_nodes].extend(node)
        return balanced_nodes

    def synchronize_crawlers(self, crawlers):
        # Synchronize the progress of distributed crawlers
        # Implement synchronization logic here
        pass

# Example usage
distributed_crawler = DistributedCrawler(num_nodes=3)
urls_to_crawl = ["https://example.com/page1", "https://example.com/page2", "https://example.com/page3",
                 "https://example.com/page4", "https://example.com/page5"]
url_partitions = distributed_crawler.partition_urls(urls_to_crawl)
balanced_partitions = distributed_crawler.balance_load(url_partitions)

for i, node in enumerate(balanced_partitions):
    print(f"Node {i}: {node}")

crawlers = ["Crawler1", "Crawler2", "Crawler3"]
distributed_crawler.synchronize_crawlers(crawlers)

import requests
from bs4 import BeautifulSoup

class PageFetcher:
    def fetch_page(self, url):
        response = requests.get(url)
        if response.status_code == 200:
            return response.text
        else:
            return None

class PageParser:
    def parse_html(self, html_content):
        soup = BeautifulSoup(html_content, 'html.parser')
        # Extract relevant information from the parsed HTML
        # Implement parsing logic here
        pass

# Example usage
fetcher = PageFetcher()
parser = PageParser()

url = "https://example.com"
html_content = fetcher.fetch_page(url)
if html_content:
    parsed_data = parser.parse_html(html_content)
    print(parsed_data)
else:
    print(f"Failed to fetch page: {url}")

import re

class URLFilter:
    def __init__(self, filter_rules):
        self.filter_rules = filter_rules

    def filter_urls(self, urls):
        filtered_urls = []
        for url in urls:
            if self.is_url_allowed(url):
                filtered_urls.append(url)
        return filtered_urls

    def is_url_allowed(self, url):
        for rule in self.filter_rules:
            if re.match(rule, url):
                return False
        return True

# Example usage
filter_rules = ["^https://example.com/allowed/.*", "^https://example.com/excluded/.*"]
url_filter = URLFilter(filter_rules)

urls_to_filter = [
    "https://example.com/allowed/page1",
    "https://example.com/excluded/page1",
    "https://example.com/allowed/page2",
    "https://example.com/excluded/page2",
]

filtered_urls = url_filter.filter_urls(urls_to_filter)
for url in filtered_urls:
    print(url)

from pymongo import MongoClient

class DataStorage:
    def __init__(self):
        self.client = MongoClient()
        self.db = self.client['crawled_data']
        self.collection = self.db['pages']

    def store_page_data(self, page_data):
        self.collection.insert_one(page_data)

# Example usage
storage = DataStorage()
page_data = {
    "url": "https://example.com/page1",
    "title": "Example Page",
    "content": "This is an example page.",
    # Additional page data
}
storage.store_page_data(page_data)

import datetime

class Recrawler:
    def __init__(self, freshness_threshold):
        self.freshness_threshold = freshness_threshold

    def should_recrawl(self, last_modified):
        current_time = datetime.datetime.now()
        time_difference = current_time - last_modified
        return time_difference.days > self.freshness_threshold

# Example usage
recrawler = Recrawler(freshness_threshold=7)
last_modified = datetime.datetime(2023, 6, 5)  # Assume last modified on June 5, 2023
if recrawler.should_recrawl(last_modified):
    print("Recrawl needed")
else:
    print("Page is fresh")

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

class DynamicPageHandler:
    def __init__(self):
        chrome_options = Options()
        chrome_options.add_argument("--headless")  # Run browser in headless mode
        self.driver = webdriver.Chrome(options=chrome_options)

    def handle_dynamic_page(self, url):
        self.driver.get(url)
        # Implement handling logic for dynamic content
        # Extract relevant information, interact with forms, etc.
        # Use driver.find_element...() methods to locate elements and perform actions

    def close(self):
        self.driver.quit()

# Example usage
page_handler = DynamicPageHandler()
page_handler.handle_dynamic_page("https://example.com/dynamic-page")
# Perform actions on the dynamic page using Selenium methods
page_handler.close()

import multiprocessing

class DistributedParser:
    def __init__(self):
        self.pool = multiprocessing.Pool()

    def parse_data(self, data):
        # Implement parsing logic for structured data extraction
        # Perform data transformation and normalization

    def process_data(self, data_list):
        parsed_data = self.pool.map(self.parse_data, data_list)
        return parsed_data

# Example usage
parser = DistributedParser()
data_list = [data1, data2, data3]  # List of data to be parsed
parsed_data = parser.process_data(data_list)
for data in parsed_data:
    print(data)

import asyncio
import aiohttp
import aioredis

class DistributedCrawler:
    async def fetch_page(self, url):
        async with aiohttp.ClientSession() as session:
            async with session.get(url) as response:
                if response.status == 200:
                    return await response.text()
                else:
                    return None

    async def crawl_pages(self, urls):
        tasks = []
        for url in urls:
            tasks.append(self.fetch_page(url))
        return await asyncio.gather(*tasks)

class CachingMiddleware:
    def __init__(self):
        self.redis = aioredis.from_url('redis://localhost')

    async def fetch_page(self, url):
        cached_page = await self.redis.get(url)
        if cached_page:
            return cached_page.decode('utf-8')
        else:
            page_content = await self.fetcher.fetch_page(url)
            await self.redis.set(url, page_content)
            return page_content

# Example usage
urls_to_crawl = ["https://example.com/page1", "https://example.com/page2", "https://example.com/page3"]
distributed_crawler = DistributedCrawler()
caching_middleware = CachingMiddleware()

loop = asyncio.get_event_loop()
crawled_pages = loop.run_until_complete(distributed_crawler.crawl_pages(urls_to_crawl))
for page in crawled_pages:
    # Process crawled pages

loop.close()

import time
import random

# Simulating small-scale scenario for Google Docs
total_users = 1200000000
active_users = 300000000
documents_per_user_per_day = 5
documents_per_day = active_users * documents_per_user_per_day

read_to_write_ratio = 100
total_documents_written_per_day = documents_per_day / read_to_write_ratio

document_size_mb = 1
storage_per_day_tb = total_documents_written_per_day * document_size_mb / 1000

storage_for_3_years_pb = storage_per_day_tb * 365 * 3

requests_per_second = documents_per_day / (24 * 60 * 60)

print("Google Docs Small-Scale Simulation:")
print("-----------------------------------")
print("Total Users: ", total_users)
print("Active Users: ", active_users)
print("Documents Edited per User per Day: ", documents_per_user_per_day)
print("Total Documents Edited per Day: ", documents_per_day)
print("Storage per Day: ", storage_per_day_tb, "TB")
print("Storage for Next 3 Years: ", storage_for_3_years_pb, "PB")
print("Requests per Second: ", requests_per_second)

# Simulating requests per second for Google Docs
def simulate_requests():
    while True:
        requests = random.randint(0, int(requests_per_second))
        print("Simulating Requests per Second: ", requests)
        time.sleep(1)

simulate_requests()

class User:
    def __init__(self, user_id, username, password):
        self.user_id = user_id
        self.username = username
        self.password = password

class Document:
    def __init__(self, doc_id, title, content, owner):
        self.doc_id = doc_id
        self.title = title
        self.content = content
        self.owner = owner
        self.collaborators = []
        self.comments = []

class Comment:
    def __init__(self, comment_id, user, content):
        self.comment_id = comment_id
        self.user = user
        self.content = content

class GoogleDocs:
    def __init__(self):
        self.users = {}
        self.documents = {}
        self.next_user_id = 1
        self.next_doc_id = 1
        self.next_comment_id = 1

    def register_user(self, username, password):
        user_id = self.next_user_id
        user = User(user_id, username, password)
        self.users[user_id] = user
        self.next_user_id += 1
        return user_id

    def create_document(self, title, content, owner_id):
        doc_id = self.next_doc_id
        owner = self.users.get(owner_id)
        if owner is None:
            return None
        document = Document(doc_id, title, content, owner)
        self.documents[doc_id] = document
        self.next_doc_id += 1
        return doc_id

    def add_collaborator(self, doc_id, user_id):
        document = self.documents.get(doc_id)
        user = self.users.get(user_id)
        if document is None or user is None:
            return False
        document.collaborators.append(user)
        return True

    def add_comment(self, doc_id, user_id, content):
        document = self.documents.get(doc_id)
        user = self.users.get(user_id)
        if document is None or user is None:
            return None
        comment_id = self.next_comment_id
        comment = Comment(comment_id, user, content)
        document.comments.append(comment)
        self.next_comment_id += 1
        return comment_id

from flask import Flask, jsonify, request

app = Flask(__name__)

# Document Management API
@app.route('/documents', methods=['GET'])
def get_documents():
    # Retrieve and return a list of documents
    # Implement your logic here
    documents = []
    # Code to fetch documents from the database or storage
    return jsonify(documents)

@app.route('/documents', methods=['POST'])
def create_document():
    # Create a new document
    # Implement your logic here
    data = request.get_json()
    # Code to create a new document in the database or storage
    document_id = 'abc123'  # Replace with the generated document ID
    return jsonify({'document_id': document_id}), 201

@app.route('/documents/<document_id>', methods=['GET'])
def get_document(document_id):
    # Retrieve the details of a specific document
    # Implement your logic here
    # Code to fetch the document from the database or storage
    document = {'document_id': document_id, 'title': 'Sample Document', 'content': 'Lorem ipsum dolor sit amet.'}
    return jsonify(document)

@app.route('/documents/<document_id>', methods=['PUT'])
def update_document(document_id):
    # Update the content of a document
    # Implement your logic here
    data = request.get_json()
    # Code to update the document content in the database or storage
    return jsonify({'message': 'Document updated successfully'})

@app.route('/documents/<document_id>', methods=['DELETE'])
def delete_document(document_id):
    # Delete a document
    # Implement your logic here
    # Code to delete the document from the database or storage
    return jsonify({'message': 'Document deleted successfully'})

# Collaboration Management API
@app.route('/collaboration/<document_id>', methods=['POST'])
def add_collaborator(document_id):
    # Add a collaborator to a document
    # Implement your logic here
    data = request.get_json()
    # Code to add the collaborator to the document in the database or storage
    return jsonify({'message': 'Collaborator added successfully'})

@app.route('/collaboration/<document_id>/<user_id>', methods=['DELETE'])
def remove_collaborator(document_id, user_id):
    # Remove a collaborator from a document
    # Implement your logic here
    # Code to remove the collaborator from the document in the database or storage
    return jsonify({'message': 'Collaborator removed successfully'})

# Revision Management API
@app.route('/revisions/<document_id>', methods=['GET'])
def get_revisions(document_id):
    # Retrieve the revision history of a document
    # Implement your logic here
    # Code to fetch the revisions of the document from the database or storage
    revisions = []
    return jsonify(revisions)

# User Management API
@app.route('/users', methods=['POST'])
def create_user():
    # Create a new user account
    # Implement your logic here
    data = request.get_json()
    # Code to create a new user account in the database or storage
    user_id = 'xyz789'  # Replace with the generated user ID
    return jsonify({'user_id': user_id}), 201

@app.route('/users/<user_id>', methods=['GET'])
def get_user(user_id):
    # Retrieve the details of a user
    # Implement your logic here
    # Code to fetch the user details from the database or storage
    user = {'user_id': user_id, 'username': 'john', 'email': '[email protected]'}
    return jsonify(user)

@app.route('/users/<user_id>', methods=['PUT'])
def update_user(user_id):
    # Update user preferences
    # Implement your logic here
    data = request.get_json()
    # Code to update the user preferences in the database or storage
    return jsonify({'message': 'User preferences updated successfully'})

@app.route('/users/<user_id>', methods=['DELETE'])
def delete_user(user_id):
    # Delete a user account
    # Implement your logic here
    # Code to delete the user account from the database or storage
    return jsonify({'message': 'User account deleted successfully'})

# Run the Flask app
if __name__ == '__main__':
    app.run(debug=True)

from flask import Flask, render_template
from flask_socketio import SocketIO, join_room, leave_room, emit

app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret'
socketio = SocketIO(app)

# Keep track of connected clients and the document content
clients = {}
document_content = ""


@app.route('/')
def index():
    return render_template('index.html')


@socketio.on('connect')
def handle_connect():
    # Add client to the connected clients list
    clients[request.sid] = True
    emit('document_content', document_content)


@socketio.on('disconnect')
def handle_disconnect():
    # Remove client from the connected clients list
    if request.sid in clients:
        del clients[request.sid]


@socketio.on('update_content')
def handle_update_content(data):
    # Update the document content and broadcast it to all connected clients
    document_content = data['content']
    emit('document_content', document_content, broadcast=True)


if __name__ == '__main__':
    socketio.run(app, debug=True)

import random
import time

class HubspotSimulation:
    def __init__(self, total_users, daily_active_users, leads_per_user, read_write_ratio):
        self.total_users = total_users
        self.daily_active_users = daily_active_users
        self.leads_per_user = leads_per_user
        self.read_write_ratio = read_write_ratio

        # Assuming each lead data size is 1 KB
        self.lead_data_size_kb = 1
        self.total_leads_per_day = self.total_users * self.daily_active_users * self.leads_per_user

        # Simulated storage in GB
        self.total_storage_per_day_gb = self.total_leads_per_day * self.lead_data_size_kb / 1024

    def simulate_storage_growth(self, years):
        total_storage_tb = self.total_storage_per_day_gb * 365 * years / 1024
        return total_storage_tb

    def simulate_requests_per_second(self):
        # Simulated requests per second
        requests_per_second = self.total_leads_per_day / (24 * 3600)
        return requests_per_second

    def simulate_read_write_requests(self):
        # Simulated read and write requests based on read_write_ratio
        total_requests = self.total_leads_per_day
        read_requests = total_requests / (self.read_write_ratio + 1)
        write_requests = total_requests - read_requests
        return read_requests, write_requests

    def simulate_daily_activity(self):
        # Simulated daily activity of users
        for user_id in range(self.daily_active_users):
            leads_managed = random.randint(0, self.leads_per_user)
            print(f"User {user_id} managed {leads_managed} leads today.")
            time.sleep(0.01)  # Simulate processing time

if __name__ == "__main__":
    # Instantiate the HubspotSimulation class
    hubspot_sim = HubspotSimulation(total_users=100_000_000,
                                    daily_active_users=20_000_000,
                                    leads_per_user=5,
                                    read_write_ratio=50)

    # Simulate storage growth for the next 3 years
    total_storage_tb = hubspot_sim.simulate_storage_growth(years=3)
    print(f"Total storage required for the next 3 years: {total_storage_tb:.2f} TB")

    # Simulate requests per second
    requests_per_second = hubspot_sim.simulate_requests_per_second()
    print(f"Simulated requests per second: {requests_per_second:.2f} requests")

    # Simulate read and write requests
    read_requests, write_requests = hubspot_sim.simulate_read_write_requests()
    print(f"Simulated read requests: {read_requests:.2f} requests")
    print(f"Simulated write requests: {write_requests:.2f} requests")

    # Simulate daily activity of users
    print("\nSimulating daily user activity:")
    hubspot_sim.simulate_daily_activity()

Users:

Fields:
User ID: INT (Primary Key)
Username: STRING
Email: STRING
Password: STRING

Leads:

Fields:
Lead ID: INT (Primary Key)
User ID: INT (Foreign Key referencing Users.User ID)
Name: STRING
Email: STRING
Phone: STRING
Company: STRING

Contacts:

Fields:
Contact ID: INT (Primary Key)
User ID: INT (Foreign Key referencing Users.User ID)
Name: STRING
Email: STRING
Phone: STRING
Company: STRING

Marketing Campaigns:

Fields:
Campaign ID: INT (Primary Key)
User ID: INT (Foreign Key referencing Users.User ID)
Campaign Name: STRING
Start Date: DATETIME
End Date: DATETIME
Description: TEXT

Sales Pipeline:

Fields:
Pipeline ID: INT (Primary Key)
User ID: INT (Foreign Key referencing Users.User ID)
Deal Name: STRING
Deal Amount: FLOAT
Deal Stage: STRING
Closing Date: DATETIME
Description: TEXT

from flask import Flask, request

app = Flask(__name__)

# Sample data to be stored in the server
users = {}
leads = {}
contacts = {}
campaigns = {}
deals = {}

# Low Level Design
class User:
    def __init__(self, user_id, username, password, role):
        self.user_id = user_id
        self.username = username
        self.password = password
        self.role = role
        self.profile = {}

class Lead:
    def __init__(self, lead_id, user_id, name, email, phone, company, status, source):
        self.lead_id = lead_id
        self.user_id = user_id
        self.name = name
        self.email = email
        self.phone = phone
        self.company = company
        self.status = status
        self.source = source

class Contact:
    def __init__(self, contact_id, user_id, name, email, phone, company, status):
        self.contact_id = contact_id
        self.user_id = user_id
        self.name = name
        self.email = email
        self.phone = phone
        self.company = company
        self.status = status

class Campaign:
    def __init__(self, campaign_id, user_id, campaign_name, start_date, end_date, description):
        self.campaign_id = campaign_id
        self.user_id = user_id
        self.campaign_name = campaign_name
        self.start_date = start_date
        self.end_date = end_date
        self.description = description

class Deal:
    def __init__(self, deal_id, user_id, deal_name, amount, stage, closing_date, description):
        self.deal_id = deal_id
        self.user_id = user_id
        self.deal_name = deal_name
        self.amount = amount
        self.stage = stage
        self.closing_date = closing_date
        self.description = description

# API Design
@app.route('/users', methods=['POST'])
def create_user():
    data = request.get_json()
    user_id = len(users) + 1
    user = User(user_id, data['username'], data['password'], data['role'])
    users[user_id] = user.__dict__
    return {"message": "User created successfully", "user": user.__dict__}, 201

@app.route('/users/<int:user_id>', methods=['GET'])
def get_user(user_id):
    user = users.get(user_id)
    if user:
        return user, 200
    return {"message": "User not found"}, 404

@app.route('/leads', methods=['POST'])
def create_lead():
    data = request.get_json()
    lead_id = len(leads) + 1
    lead = Lead(lead_id, data['user_id'], data['name'], data['email'], data['phone'], data['company'], data['status'], data['source'])
    leads[lead_id] = lead.__dict__
    return {"message": "Lead created successfully", "lead": lead.__dict__}, 201

@app.route('/leads/<int:lead_id>', methods=['GET'])
def get_lead(lead_id):
    lead = leads.get(lead_id)
    if lead:
        return lead, 200
    return {"message": "Lead not found"}, 404

# Additional API endpoints for contacts, campaigns, deals, etc.

if __name__ == '__main__':
    app.run(debug=True)

User:

Fields:
UserID: INT (Primary Key)
Username: STRING
Email: STRING
Password: STRING
Role: STRING (e.g., "Marketing", "Sales", "Customer Service")
Profile: TEXT (Additional profile information)
Lead:

Fields:
LeadID: INT (Primary Key)
UserID: INT (Foreign Key referencing User.UserID)
Name: STRING
Email: STRING
Phone: STRING
Company: STRING
Status: STRING (e.g., "New", "Qualified", "Lost", "Won")
Source: STRING (e.g., "Website", "Email Campaign", "Social Media")
Contact:

Fields:
ContactID: INT (Primary Key)
UserID: INT (Foreign Key referencing User.UserID)
Name: STRING
Email: STRING
Phone: STRING
Company: STRING
Status: STRING (e.g., "Active", "Inactive", "Unsubscribed")
Marketing Campaign:

Fields:
CampaignID: INT (Primary Key)
UserID: INT (Foreign Key referencing User.UserID)
CampaignName: STRING
StartDate: DATE
EndDate: DATE
Description: TEXT
Sales Deal:

Fields:
DealID: INT (Primary Key)
UserID: INT (Foreign Key referencing User.UserID)
DealName: STRING
Amount: FLOAT
Stage: STRING (e.g., "Prospect", "Negotiation", "Closed Won", "Closed Lost")
ClosingDate: DATE
Description: TEXT

User Management API:

POST /users: Create a new user account.
POST /login: Authenticate user login.
PATCH /users/{user_id}: Update user profile information.
GET /users/{user_id}: Get user profile information.
Lead Management API:

POST /leads: Create a new lead.
PATCH /leads/{lead_id}: Update lead information (e.g., status, source).
GET /leads/{lead_id}: Get lead details by ID.
GET /users/{user_id}/leads: Get all leads associated with a user.
Contact Management API:

POST /contacts: Create a new contact.
PATCH /contacts/{contact_id}: Update contact information (e.g., status).
GET /contacts/{contact_id}: Get contact details by ID.
GET /users/{user_id}/contacts: Get all contacts associated with a user.
Marketing Campaign API:

POST /campaigns: Create a new marketing campaign.
PATCH /campaigns/{campaign_id}: Update campaign details (e.g., name, dates).
GET /campaigns/{campaign_id}: Get campaign details by ID.
GET /users/{user_id}/campaigns: Get all campaigns associated with a user.
Sales Deal API:

POST /deals: Create a new sales deal.
PATCH /deals/{deal_id}: Update deal information (e.g., amount, stage).
GET /deals/{deal_id}: Get deal details by ID.
GET /users/{user_id}/deals: Get all deals associated with a user.
Email Service API:

POST /emails: Send an email to a contact or lead.
GET /emails/{email_id}: Get email details by ID.
GET /users/{user_id}/emails: Get all emails sent or received by a user.
Analytics and Reporting API:

GET /reports/campaigns: Get campaign performance metrics (e.g., clicks, conversions).
GET /reports/deals: Get sales deal performance metrics (e.g., revenue, win rate).
GET /reports/users: Get user activity and engagement metrics.
Search Service API:

GET /search?q={query}: Search for leads, contacts, campaigns, or deals based on the query.
Real-time Notifications API:

POST /notifications: Send real-time notifications to users.
GET /users/{user_id}/notifications: Get a list of notifications for a user.

from typing import List, Dict
from fastapi import FastAPI, HTTPException

app = FastAPI()

# Placeholder for authentication and authorization mechanisms
def authenticate_user(api_key: str) -> bool:
    # In a real implementation, check the validity of the API key and user permissions
    # For simplicity, we'll assume all API keys are valid
    return True

# Placeholder data storage for leads (In a real implementation, use a database)
leads_db = {}

# Placeholder for CRM operations
def create_lead(lead_data: Dict[str, str]) -> Dict[str, str]:
    # Create a lead in the Hubspot CRM
    lead_id = str(len(leads_db) + 1)
    lead_data["lead_id"] = lead_id
    leads_db[lead_id] = lead_data
    return {"status": "success", "message": "Lead created successfully", "lead_id": lead_id}

def read_lead(lead_id: str) -> Dict[str, str]:
    # Read lead details from the Hubspot CRM
    if lead_id not in leads_db:
        raise HTTPException(status_code=404, detail="Lead not found")
    return leads_db[lead_id]

def update_lead(lead_id: str, lead_data: Dict[str, str]) -> Dict[str, str]:
    # Update a lead in the Hubspot CRM
    if lead_id not in leads_db:
        raise HTTPException(status_code=404, detail="Lead not found")
    leads_db[lead_id].update(lead_data)
    return {"status": "success", "message": "Lead updated successfully", "lead_id": lead_id}

def delete_lead(lead_id: str) -> Dict[str, str]:
    # Delete a lead from the Hubspot CRM
    if lead_id not in leads_db:
        raise HTTPException(status_code=404, detail="Lead not found")
    del leads_db[lead_id]
    return {"status": "success", "message": "Lead deleted successfully", "lead_id": lead_id}

# Placeholder for marketing automation
# Placeholder for sales automation

@app.post("/authenticate/")
def authenticate_endpoint(api_key: str):
    # Authentication
    if not authenticate_user(api_key):
        raise HTTPException(status_code=401, detail="Unauthorized")
    return {"status": "success", "message": "Authentication successful"}

@app.post("/create_lead/")
def create_lead_endpoint(api_key: str, lead_data: Dict[str, str]):
    # Authentication
    if not authenticate_user(api_key):
        raise HTTPException(status_code=401, detail="Unauthorized")

    # Validate lead_data (e.g., check required fields, data types, etc.)
    if not lead_data.get("name") or not lead_data.get("email"):
        raise HTTPException(status_code=400, detail="Name and email are required.")

    # Create a lead
    response = create_lead(lead_data)
    return response

@app.get("/read_lead/{lead_id}")
def read_lead_endpoint(api_key: str, lead_id: str):
    # Authentication
    if not authenticate_user(api_key):
        raise HTTPException(status_code=401, detail="Unauthorized")

    # Read lead details
    response = read_lead(lead_id)
    return response

@app.put("/update_lead/{lead_id}")
def update_lead_endpoint(api_key: str, lead_id: str, lead_data: Dict[str, str]):
    # Authentication
    if not authenticate_user(api_key):
        raise HTTPException(status_code=401, detail="Unauthorized")

    # Update a lead
    response = update_lead(lead_id, lead_data)
    return response

@app.delete("/delete_lead/{lead_id}")
def delete_lead_endpoint(api_key: str, lead_id: str):
    # Authentication
    if not authenticate_user(api_key):
        raise HTTPException(status_code=401, detail="Unauthorized")

    # Delete a lead
    response = delete_lead(lead_id)
    return response

# Sample data storage using dictionaries (replace with actual database in real implementation)
users_data = {}
leads_data = {}
contacts_data = {}
campaigns_data = {}
sales_pipeline_data = {}

class UserService:
    def register_user(self, username, email, password):
        # Placeholder for user registration
        user_id = len(users_data) + 1
        users_data[user_id] = {"username": username, "email": email, "password": password}
        return user_id

    def authenticate_user(self, email, password):
        # Placeholder for user authentication
        for user_id, user_data in users_data.items():
            if user_data["email"] == email and user_data["password"] == password:
                return user_id
        return None

    def get_user_profile(self, user_id):
        # Placeholder for fetching user profile
        return users_data.get(user_id, {})


class LeadService:
    def create_lead(self, user_id, name, email, phone, company):
        # Placeholder for lead creation
        lead_id = len(leads_data) + 1
        leads_data[lead_id] = {"user_id": user_id, "name": name, "email": email, "phone": phone, "company": company}
        return lead_id

    def get_leads_by_user(self, user_id):
        # Placeholder for fetching leads by user
        return [lead_data for lead_data in leads_data.values() if lead_data["user_id"] == user_id]


class ContactService:
    def create_contact(self, user_id, name, email, phone, company):
        # Placeholder for contact creation
        contact_id = len(contacts_data) + 1
        contacts_data[contact_id] = {"user_id": user_id, "name": name, "email": email, "phone": phone, "company": company}
        return contact_id

    def get_contacts_by_user(self, user_id):
        # Placeholder for fetching contacts by user
        return [contact_data for contact_data in contacts_data.values() if contact_data["user_id"] == user_id]


class MarketingService:
    def create_campaign(self, user_id, campaign_name, start_date, end_date, description):
        # Placeholder for campaign creation
        campaign_id = len(campaigns_data) + 1
        campaigns_data[campaign_id] = {
            "user_id": user_id,
            "campaign_name": campaign_name,
            "start_date": start_date,
            "end_date": end_date,
            "description": description
        }
        return campaign_id

    def get_campaigns_by_user(self, user_id):
        # Placeholder for fetching campaigns by user
        return [campaign_data for campaign_data in campaigns_data.values() if campaign_data["user_id"] == user_id]


class SalesService:
    def create_deal(self, user_id, deal_name, deal_amount, deal_stage, closing_date, description):
        # Placeholder for deal creation
        deal_id = len(sales_pipeline_data) + 1
        sales_pipeline_data[deal_id] = {
            "user_id": user_id,
            "deal_name": deal_name,
            "deal_amount": deal_amount,
            "deal_stage": deal_stage,
            "closing_date": closing_date,
            "description": description
        }
        return deal_id

    def get_deals_by_user(self, user_id):
        # Placeholder for fetching deals by user
        return [deal_data for deal_data in sales_pipeline_data.values() if deal_data["user_id"] == user_id]


# Sample usage of services
if __name__ == "__main__":
    user_service = UserService()
    lead_service = LeadService()
    contact_service = ContactService()
    marketing_service = MarketingService()
    sales_service = SalesService()

    # Register a new user
    user_id = user_service.register_user("john_doe", "[email protected]", "password123")

    # Create a new lead
    lead_id = lead_service.create_lead(user_id, "John Doe", "[email protected]", "1234567890", "Sample Company")

    # Create a new contact
    contact_id = contact_service.create_contact(user_id, "Jane Smith", "[email protected]", "9876543210", "Sample Company")

    # Create a new marketing campaign
    campaign_id = marketing_service.create_campaign(user_id, "Summer Sale", "2023-07-01", "2023-07-31", "Special discounts for summer")

    # Create a new sales deal
    deal_id = sales_service.create_deal(user_id, "Big Sale Deal", 5000.00, "Negotiation", "2023-08-15", "Big sale deal opportunity")

Users

UserID: Integer (Primary Key)
Username: String
Email: String
Password: String
Comments

CommentID: Integer (Primary Key)
UserID: Integer (Foreign Key references Users.UserID)
PostID: Integer (Foreign Key references Posts.PostID)
Content: String
Timestamp: DateTime
Posts

PostID: Integer (Primary Key)
UserID: Integer (Foreign Key references Users.UserID)
PhotoURL: String
Caption: String
Timestamp: DateTime
Location: String

class User:
    def __init__(self, user_id, username, email, password):
        self.user_id = user_id
        self.username = username
        self.email = email
        self.password = password
        # Other user attributes like profile picture, bio, etc.

class Post:
    def __init__(self, post_id, user, content):
        self.post_id = post_id
        self.user = user  # User who posted the post
        self.content = content
        # Other post attributes like media_url, timestamp, etc.

class Comment:
    def __init__(self, comment_id, post, user, content):
        self.comment_id = comment_id
        self.post = post  # Post on which the comment is made
        self.user = user  # User who posted the comment
        self.content = content
        # Other comment attributes like timestamp, likes, etc.

from flask import Flask, request, jsonify

app = Flask(__name__)

# Placeholder lists to simulate database storage
users_db = []
posts_db = []
comments_db = []


# Endpoint to create a new comment
@app.route('/comments', methods=['POST'])
def create_comment():
    data = request.get_json()
    user_id = data.get('user_id')
    post_id = data.get('post_id')
    content = data.get('content')

    # Check if the user and post exist in the database
    user = next((user for user in users_db if user.user_id == user_id), None)
    post = next((post for post in posts_db if post.post_id == post_id), None)

    if not user or not post:
        return jsonify({'error': 'User or post not found'}), 404

    # Generate a unique comment_id (you may use a UUID or other methods in production)
    comment_id = len(comments_db) + 1

    # Create a new comment and add it to the database
    new_comment = Comment(comment_id, post, user, content)
    comments_db.append(new_comment)

    return jsonify({'message': 'Comment created successfully', 'comment_id': comment_id}), 201


# Endpoint to get comments for a specific post
@app.route('/posts/<int:post_id>/comments', methods=['GET'])
def get_comments_for_post(post_id):
    # Check if the post exists in the database
    post = next((post for post in posts_db if post.post_id == post_id), None)

    if not post:
        return jsonify({'error': 'Post not found'}), 404

    # Get all comments for the specified post
    comments = [comment.__dict__ for comment in comments_db if comment.post == post]

    return jsonify({'comments': comments}), 200





if __name__ == '__main__':
    app.run(debug=True)

from flask import Flask, request, jsonify

app = Flask(__name__)

# Placeholder dictionaries to simulate database storage
comments_db = {}
moderation_rules_db = {}


# Endpoint to submit a new comment
@app.route('/comments', methods=['POST'])
def submit_comment():
    data = request.get_json()
    # Validate incoming data
    if 'user_id' not in data or 'content' not in data:
        return jsonify({'error': 'Invalid data. User ID and content are required.'}), 400

    comment_id = len(comments_db) + 1
    comment = {
        'comment_id': comment_id,
        'user_id': data['user_id'],
        'content': data['content'],
        'status': 'pending'  # Initial status until filtering completes
    }

    # Simulate comment filtering and processing
    # For simplicity, we assume all comments pass filtering and get approved
    comment['status'] = 'approved'

    comments_db[comment_id] = comment
    return jsonify({'message': 'Comment submitted successfully.', 'comment_id': comment_id}), 201


# Endpoint to retrieve details about a specific comment
@app.route('/comments/<int:comment_id>', methods=['GET'])
def get_comment(comment_id):
    comment = comments_db.get(comment_id)
    if comment:
        return jsonify(comment)
    else:
        return jsonify({'error': 'Comment not found.'}), 404


# Endpoint to allow users to report a comment
@app.route('/comments/<int:comment_id>/report', methods=['PUT'])
def report_comment(comment_id):
    comment = comments_db.get(comment_id)
    if not comment:
        return jsonify({'error': 'Comment not found.'}), 404

    # Here, you can implement the reporting logic
    # For simplicity, we'll just mark the comment as reported
    comment['status'] = 'reported'
    return jsonify({'message': 'Comment reported successfully.'}), 200


# Endpoint to create a new custom moderation rule
@app.route('/moderation-rules', methods=['POST'])
def create_moderation_rule():
    data = request.get_json()
    # Validate incoming data
    if 'keyword' not in data or 'action' not in data:
        return jsonify({'error': 'Invalid data. Keyword and action are required.'}), 400

    rule_id = len(moderation_rules_db) + 1
    rule = {
        'rule_id': rule_id,
        'keyword': data['keyword'],
        'action': data['action']
    }

    moderation_rules_db[rule_id] = rule
    return jsonify({'message': 'Moderation rule created successfully.', 'rule_id': rule_id}), 201


# Endpoint to retrieve existing moderation rules
@app.route('/moderation-rules', methods=['GET'])
def get_moderation_rules():
    return jsonify(list(moderation_rules_db.values())), 200


# Endpoint to delete a specific moderation rule
@app.route('/moderation-rules/<int:rule_id>', methods=['DELETE'])
def delete_moderation_rule(rule_id):
    rule = moderation_rules_db.get(rule_id)
    if not rule:
        return jsonify({'error': 'Moderation rule not found.'}), 404

    moderation_rules_db.pop(rule_id)
    return jsonify({'message': 'Moderation rule deleted successfully.'}), 200


if __name__ == '__main__':
    app.run(debug=True)

from flask import Flask, request, jsonify

app = Flask(__name__)

# Placeholder dictionaries to simulate database storage
comments_db = {}
moderation_rules_db = {}

# Placeholder list to simulate reported comments
reported_comments = []


# Function to check for profanity in a comment
def profanity_filter(comment):
    profane_words = ['bad', 'offensive', 'inappropriate']  # Placeholder list of profane words
    for word in profane_words:
        if word in comment['content'].lower():
            return True
    return False


# Function to check for spam in a comment
def spam_detection(comment):
    # Placeholder logic for spam detection
    # For simplicity, we assume comments containing 'spam' in the content are spam
    return 'spam' in comment['content'].lower()


# Function to check if a comment matches any custom moderation rule
def custom_moderation_rules(comment):
    for rule in moderation_rules_db.values():
        if rule['keyword'] in comment['content'].lower():
            return rule['action']
    return None


# Function to report a comment
def report_comment(comment_id):
    comment = comments_db.get(comment_id)
    if comment:
        reported_comments.append(comment)
        return True
    return False


# Function to simulate machine learning integration for content moderation
def machine_learning_integration(comment):
    # Placeholder machine learning logic for content moderation
    # For simplicity, we assume all comments pass moderation
    return True


# Function to simulate real-time processing of comments
def process_comment(comment):
    # Check for profanity
    if profanity_filter(comment):
        return {'status': 'rejected', 'reason': 'profanity'}
    
    # Check for spam
    if spam_detection(comment):
        return {'status': 'rejected', 'reason': 'spam'}

    # Check custom moderation rules
    custom_rule_action = custom_moderation_rules(comment)
    if custom_rule_action:
        return {'status': custom_rule_action, 'reason': 'custom_moderation_rule'}

    # Apply machine learning integration
    if not machine_learning_integration(comment):
        return {'status': 'rejected', 'reason': 'machine_learning'}

    return {'status': 'approved'}


# Endpoint to submit a new comment
@app.route('/comments', methods=['POST'])
def submit_comment():
    data = request.get_json()
    # Validate incoming data
    if 'user_id' not in data or 'content' not in data:
        return jsonify({'error': 'Invalid data. User ID and content are required.'}), 400

    comment_id = len(comments_db) + 1
    comment = {
        'comment_id': comment_id,
        'user_id': data['user_id'],
        'content': data['content'],
    }

    # Process the comment
    result = process_comment(comment)
    comment['status'] = result['status']

    comments_db[comment_id] = comment
    return jsonify({'message': 'Comment submitted successfully.', 'comment_id': comment_id, 'status': comment['status']}), 201


# Endpoint to retrieve details about a specific comment
@app.route('/comments/<int:comment_id>', methods=['GET'])
def get_comment(comment_id):
    comment = comments_db.get(comment_id)
    if comment:
        return jsonify(comment)
    else:
        return jsonify({'error': 'Comment not found.'}), 404


# Endpoint to allow users to report a comment
@app.route('/comments/<int:comment_id>/report', methods=['PUT'])
def report_comment_endpoint(comment_id):
    if report_comment(comment_id):
        return jsonify({'message': 'Comment reported successfully.'}), 200
    return jsonify({'error': 'Comment not found.'}), 404


# Endpoint to create a new custom moderation rule
@app.route('/moderation-rules', methods=['POST'])
def create_moderation_rule():
    data = request.get_json()
    # Validate incoming data
    if 'keyword' not in data or 'action' not in data:
        return jsonify({'error': 'Invalid data. Keyword and action are required.'}), 400

    rule_id = len(moderation_rules_db) + 1
    rule = {
        'rule_id': rule_id,
        'keyword': data['keyword'],
        'action': data['action']
    }

    moderation_rules_db[rule_id] = rule
    return jsonify({'message': 'Moderation rule created successfully.', 'rule_id': rule_id}), 201


# Endpoint to retrieve existing moderation rules
@app.route('/moderation-rules', methods=['GET'])
def get_moderation_rules():
    return jsonify(list(moderation_rules_db.values())), 200


# Endpoint to delete a specific moderation rule
@app.route('/moderation-rules/<int:rule_id>', methods=['DELETE'])
def delete_moderation_rule(rule_id):
    rule = moderation_rules_db.get(rule_id)
    if not rule:
        return jsonify({'error': 'Moderation rule not found.'}), 404

    moderation_rules_db.pop(rule_id)
    return jsonify({'message': 'Moderation rule deleted successfully.'}), 200


if __name__ == '__main__':
    app.run(debug=True)

class DocuSign:
    def __init__(self):
        self.users = {}
        self.documents = {}
        self.storage_used = 0

    def register_user(self, user_id, email):
        self.users[user_id] = email

    def sign_document(self, user_id, document_id):
        if user_id not in self.users:
            return "User not found. Please register first."

        self.documents[document_id] = user_id
        return f"Document {document_id} signed by user {user_id}"

    def upload_document(self, document_id, size_mb):
        self.documents[document_id] = None
        self.storage_used += size_mb

    def get_storage_usage(self):
        return f"Storage used: {self.storage_used} MB"

    def get_total_documents(self):
        return f"Total documents: {len(self.documents)}"

if __name__ == '__main__':
    docusign = DocuSign()

    # Register users
    docusign.register_user(1, "[email protected]")
    docusign.register_user(2, "[email protected]")

    # Sign documents
    print(docusign.sign_document(1, "doc1"))
    print(docusign.sign_document(2, "doc2"))
    print(docusign.sign_document(1, "doc3"))

    # Upload documents
    docusign.upload_document("doc4", 5)
    docusign.upload_document("doc5", 3)

    # Get storage usage and total documents
    print(docusign.get_storage_usage())
    print(docusign.get_total_documents())

Users:

Username: String
Email: String
Password: String

Documents:

DocumentId: Int
UserId: Int (Foreign key from Users table)
DocumentName: String
DocumentContent: Binary/URL
UploadTimestamp: DateTime

Signatures:

SignatureId: Int
UserId: Int (Foreign key from Users table)
DocumentId: Int (Foreign key from Documents table)
SignatureContent: Binary/URL
SignatureTimestamp: DateTime

class DocumentService:
    def __init__(self):
        self.documents = {}
        self.document_id_counter = 1

    def upload_document(self, user_id, document_name, document_content):
        document_id = self.document_id_counter
        self.documents[document_id] = {
            "UserId": user_id,
            "DocumentName": document_name,
            "DocumentContent": document_content,
            "UploadTimestamp": datetime.now()
        }
        self.document_id_counter += 1
        return document_id

    def get_document(self, user_id, document_id):
        document = self.documents.get(document_id)
        if document and document["UserId"] == user_id:
            return document
        return None

# Usage example
document_service = DocumentService()
document_id = document_service.upload_document(1, "Agreement.pdf", "BinaryContentHere")
print(document_service.get_document(1, document_id))

class SignatureService:
    def __init__(self):
        self.signatures = {}
        self.signature_id_counter = 1

    def create_signature_request(self, user_id, document_id, signature_content):
        signature_id = self.signature_id_counter
        self.signatures[signature_id] = {
            "UserId": user_id,
            "DocumentId": document_id,
            "SignatureContent": signature_content,
            "SignatureTimestamp": datetime.now()
        }
        self.signature_id_counter += 1
        return signature_id

    def sign_document(self, user_id, document_id, signature_content):
        if document_id not in self.signatures:
            return "Signature request not found."
        if self.signatures[document_id]["UserId"] == user_id:
            self.signatures[document_id]["SignatureContent"] = signature_content
            self.signatures[document_id]["SignatureTimestamp"] = datetime.now()
            return "Document signed successfully."
        return "Unauthorized to sign this document."

    def get_signature(self, user_id, document_id):
        signature = self.signatures.get(document_id)
        if signature and signature["UserId"] == user_id:
            return signature
        return None

# Usage example
signature_service = SignatureService()
signature_request_id = signature_service.create_signature_request(1, 1, "SignatureContentHere")
print(signature_service.get_signature(1, signature_request_id))
signature_service.sign_document(1, signature_request_id, "SignedContentHere")
print(signature_service.get_signature(1, signature_request_id))

class TransactionManagementService:
    def __init__(self):
        self.transactions = {}
        self.transaction_id_counter = 1

    def create_transaction(self, user_ids):
        transaction_id = self.transaction_id_counter
        self.transactions[transaction_id] = {
            "UserIds": user_ids,
            "Documents": [],
            "Timestamp": datetime.now()
        }
        self.transaction_id_counter += 1
        return transaction_id

    def get_transaction(self, transaction_id):
        return self.transactions.get(transaction_id)

    def add_document_to_transaction(self, transaction_id, document_id):
        if transaction_id not in self.transactions:
            return "Transaction not found."
        self.transactions[transaction_id]["Documents"].append(document_id)
        return "Document added to transaction."

    def get_transaction_documents(self, transaction_id):
        transaction = self.transactions.get(transaction_id)
        if transaction:
            return transaction["Documents"]
        return None

# Usage example
transaction_service = TransactionManagementService()
transaction_id = transaction_service.create_transaction([1, 2])
print(transaction_service.get_transaction(transaction_id))
transaction_service.add_document_to_transaction(transaction_id, 1)
print(transaction_service.get_transaction_documents(transaction_id))

class User:
    def __init__(self, user_id, username, password, email):
        self.user_id = user_id
        self.username = username
        self.password = password
        self.email = email

class Document:
    def __init__(self, document_id, user, document_content, timestamp):
        self.document_id = document_id
        self.user = user
        self.document_content = document_content
        self.timestamp = timestamp

class Signature:
    def __init__(self, signature_id, user, document, signature_content, timestamp):
        self.signature_id = signature_id
        self.user = user
        self.document = document
        self.signature_content = signature_content
        self.timestamp = timestamp

class DocuSign:
    def __init__(self):
        self.users = {}
        self.documents = {}
        self.signatures = {}
        self.user_id_counter = 1
        self.document_id_counter = 1
        self.signature_id_counter = 1

    def add_user(self, username, password, email):
        user_id = str(self.user_id_counter)
        user = User(user_id, username, password, email)
        self.users[user_id] = user
        self.user_id_counter += 1
        return user_id

    def add_document(self, user_id, document_content):
        if user_id not in self.users:
            return "User not found. Please register first."

        document_id = str(self.document_id_counter)
        user = self.users[user_id]
        timestamp = "CurrentTimestamp"  # Replace with actual timestamp logic
        document = Document(document_id, user, document_content, timestamp)
        self.documents[document_id] = document
        self.document_id_counter += 1
        return document_id

    def add_signature(self, user_id, document_id, signature_content):
        if user_id not in self.users:
            return "User not found. Please register first."
        if document_id not in self.documents:
            return "Document not found. Please upload the document first."

        signature_id = str(self.signature_id_counter)
        user = self.users[user_id]
        document = self.documents[document_id]
        timestamp = "CurrentTimestamp"  # Replace with actual timestamp logic
        signature = Signature(signature_id, user, document, signature_content, timestamp)
        self.signatures[signature_id] = signature
        self.signature_id_counter += 1
        return signature_id

from flask import Flask, request, jsonify

app = Flask(__name__)

# Mock database to store access tokens
users = {
    "[email protected]": "token1",
    "[email protected]": "token2",
}

# Authentication API - User login and access token generation
@app.route('/auth', methods=['POST'])
def authenticate_user():
    data = request.get_json()
    email = data.get('email')
    password = data.get('password')
    
    # Check if the user exists and the password is correct (for simplicity, using hardcoded values)
    if email in users and password == "password":
        access_token = users[email]
        return jsonify({"access_token": access_token})
    else:
        return jsonify({"error": "Invalid credentials"}), 401

# Document Management API - Upload, retrieve, and delete documents
@app.route('/documents', methods=['POST', 'GET', 'DELETE'])
def manage_documents():
    access_token = request.headers.get('Authorization')

    # Check if the access token is valid
    if is_valid_token(access_token):
        if request.method == 'POST':
            # Handle document upload logic here
            return jsonify({"message": "Document uploaded successfully"})
        
        elif request.method == 'GET':
            # Handle document retrieval logic here
            return jsonify({"documents": ["document1.pdf", "document2.docx"]})
        
        elif request.method == 'DELETE':
            # Handle document deletion logic here
            return jsonify({"message": "Document deleted successfully"})
    else:
        return jsonify({"error": "Unauthorized"}), 401

def is_valid_token(token):
    # Check if the access token is valid (for simplicity, checking against the mock database)
    return token in users.values()

if __name__ == '__main__':
    app.run(debug=True)

from flask import Flask, request, jsonify

app = Flask(__name__)
docusign = DocuSign()

@app.route('/users', methods=['POST'])
def create_user():
    data = request.get_json()
    username = data.get('username')
    password = data.get('password')
    email = data.get('email')
    user_id = docusign.add_user(username, password, email)
    return jsonify({"user_id": user_id}), 201

@app.route('/documents', methods=['POST'])
def upload_document():
    data = request.get_json()
    user_id = data.get('user_id')
    document_content = data.get('document_content')
    document_id = docusign.add_document(user_id, document_content)
    return jsonify({"document_id": document_id}), 201

@app.route('/signatures', methods=['POST'])
def add_signature():
    data = request.get_json()
    user_id = data.get('user_id')
    document_id = data.get('document_id')
    signature_content = data.get('signature_content')
    signature_id = docusign.add_signature(user_id, document_id, signature_content)
    return jsonify({"signature_id": signature_id}), 201

if __name__ == '__main__':
    app.run()

Authentication API:

Endpoint: /auth
Method: POST
Description: This endpoint will handle user authentication and return an access token that the user can use for subsequent API requests.

Document Management API:

Endpoint: /documents
Method: POST, GET, DELETE
Description: This endpoint will allow users to upload, retrieve, and delete documents.

Template Management API:

Endpoint: /templates
Method: POST, GET, PUT, DELETE
Description: This endpoint will enable users to create, retrieve, update, and delete document templates.

Transaction API:

Endpoint: /transactions
Method: POST, GET
Description: This endpoint will manage the signing process, allowing users to initiate transactions and check their status.

class DocuSign:
    def __init__(self):
        self.users = {}
        self.transactions = {}
        self.template_library = {}

    # Electronic Signature
    def electronic_signature(self, user, document):
        if user not in self.users:
            return "User not found. Please register first."
        
        if document not in self.transactions:
            return "Document not found. Please create a transaction first."

        return f"{user} electronically signed {document}"

    # Transaction Management
    def create_transaction(self, transaction_id):
        if transaction_id in self.transactions:
            return "Transaction ID already exists. Please choose a different ID."
        
        self.transactions[transaction_id] = []
        return f"Transaction {transaction_id} created successfully."

    def add_document_to_transaction(self, transaction_id, document):
        if transaction_id not in self.transactions:
            return "Transaction ID not found. Please create a transaction first."

        self.transactions[transaction_id].append(document)
        return f"{document} added to transaction {transaction_id}"

    # Template Library
    def add_template(self, template_name, template_content):
        self.template_library[template_name] = template_content
        return f"Template '{template_name}' added to the library."

    def get_template(self, template_name):
        if template_name not in self.template_library:
            return "Template not found. Please add the template to the library first."

        return self.template_library[template_name]

    # Workflow Automation
    def workflow_automation(self, signing_process, reminders, expiration_date):
        return f"Workflow: {signing_process}, Reminders: {reminders}, Expiration Date: {expiration_date}"

    # Integration Capabilities
    def integrate_with_third_party_app(self, app_name):
        return f"Integration with {app_name} successful"

    # Mobile Support
    def sign_document_on_mobile(self, user, document, platform):
        return f"{user} signed {document} on {platform}"


if __name__ == '__main__':
    # Test the functionalities
    docusign = DocuSign()

    # Register users
    docusign.users["John Doe"] = "[email protected]"
    docusign.users["Jane Smith"] = "[email protected]"

    # Create a transaction
    print(docusign.create_transaction("12345"))

    # Add documents to the transaction
    print(docusign.add_document_to_transaction("12345", "Agreement.pdf"))
    print(docusign.add_document_to_transaction("12345", "Contract.docx"))

    # Add templates to the library
    print(docusign.add_template("NDA", "Non-Disclosure Agreement Template"))
    print(docusign.add_template("Proposal", "Business Proposal Template"))

    # Retrieve templates from the library
    print(docusign.get_template("NDA"))
    print(docusign.get_template("Proposal"))

    # Electronic Signature
    print(docusign.electronic_signature("John Doe", "Agreement.pdf"))

    # Workflow Automation
    print(docusign.workflow_automation("Sequential", 2, "2023-07-31"))

    # Integration Capabilities
    print(docusign.integrate_with_third_party_app("CRM System"))

    # Mobile Support
    print(docusign.sign_document_on_mobile("John Doe", "Agreement.pdf", "iOS"))