AI-Driven Auto-Delegation System Python, AI, Blockchain

👤 Sharing: AI
```python
# AI-Driven Auto-Delegation System (Simple Example)
# This example demonstrates a basic concept using Python, AI (specifically a simple rule-based system), and Blockchain (simulated).
# It focuses on automatically delegating tasks based on AI-evaluated expertise scores, recorded immutably on a simulated blockchain.

import hashlib  # For basic "blockchain" hashing
import datetime  # For timestamps
import random  # For simulating expertise scores
import json  # For formatting blockchain data
from typing import List, Dict

# 1.  Simulated Blockchain Class
class Blockchain:
    def __init__(self):
        self.chain: List[Dict] = [self.create_genesis_block()]  # List of blocks
        self.pending_transactions: List[Dict] = []

    def create_genesis_block(self):
        #The genesis block is the first block in the blockchain
        return {
            'index': 0,
            'timestamp': str(datetime.datetime.now()),
            'transactions': [],
            'proof': 100,  # Arbitrary initial proof of work
            'previous_hash': '0'
        }

    def get_last_block(self):
        return self.chain[-1]

    def proof_of_work(self, last_proof):
        """Simple proof of work algorithm."""
        proof = 0
        while self.valid_proof(last_proof, proof) is False:
            proof += 1
        return proof

    def valid_proof(self, last_proof, proof):
        """Validates the Proof."""
        guess = f'{last_proof}{proof}'.encode()
        guess_hash = hashlib.sha256(guess).hexdigest()
        return guess_hash[:4] == "0000" # Difficulty is 4 leading zeros for simplicity

    def new_transaction(self, sender, recipient, task, expertise_score):
        """Adds a new transaction to the list of transactions.  Records delegation."""
        transaction = {
            'sender': sender,
            'recipient': recipient,
            'task': task,
            'expertise_score': expertise_score, # added expertise score
            'timestamp': str(datetime.datetime.now())
        }
        self.pending_transactions.append(transaction)
        return self.get_last_block()['index'] + 1 # Returns the index of the block that will hold this transaction

    def hash(self, block):
        """Hashes a Block."""
        block_string = json.dumps(block, sort_keys=True).encode()
        return hashlib.sha256(block_string).hexdigest()

    def mine_block(self):
        """Mine a block and add pending transactions to the chain."""
        last_block = self.get_last_block()
        last_proof = last_block['proof']
        proof = self.proof_of_work(last_proof)

        # Reward the miner (in this simplified case, just record the mining event)
        # No actual cryptocurrency involved, just recording the mining.
        self.new_transaction(
            sender="0", # "System" reward
            recipient="AutoDelegationSystem",
            task="Mine New Block",
            expertise_score=0 #No expertise score needed
        )

        block = {
            'index': len(self.chain) + 1,
            'timestamp': str(datetime.datetime.now()),
            'transactions': self.pending_transactions,
            'proof': proof,
            'previous_hash': self.hash(last_block),
        }

        self.pending_transactions = []
        self.chain.append(block)
        return block

    def is_chain_valid(self):
        """Checks if the blockchain is valid."""
        for i in range(1, len(self.chain)):
            current_block = self.chain[i]
            previous_block = self.chain[i - 1]

            # Check if hash is correct
            if current_block['previous_hash'] != self.hash(previous_block):
                return False

            # Check if proof of work is valid
            last_proof = previous_block['proof']
            proof = current_block['proof']
            if not self.valid_proof(last_proof, proof):
                return False

        return True

    def display_chain(self):
      """Prints the blockchain."""
      for block in self.chain:
        print(json.dumps(block, indent=4))


# 2.  AI/Expertise System (Simple Rule-Based)
class ExpertiseSystem:
    def __init__(self):
        # Predefined skills and expertise levels. In a real system, this would be dynamic and learned.
        self.employee_skills = {
            "Alice": {"Python": 8, "Blockchain": 6, "AI": 4},
            "Bob": {"Python": 5, "Blockchain": 7, "Security": 9},
            "Charlie": {"AI": 7, "Data Analysis": 8, "Python": 6},
            "David": {"Project Management": 9, "Communication": 8, "Python": 3},
        }

    def calculate_expertise_score(self, employee, task_requirements):
        """Calculates an expertise score based on employee skills and task requirements.  Simple example."""
        score = 0
        for skill, required_level in task_requirements.items():
            if skill in self.employee_skills[employee]:
                score += self.employee_skills[employee][skill] * required_level  # Weighted sum
            else:
                score -= 1 # Penalize if skill is missing
        return max(0, score)  # Ensure score is not negative

    def find_best_candidate(self, task_requirements):
        """Finds the best employee for a task based on expertise scores."""
        best_employee = None
        best_score = -1

        for employee in self.employee_skills:
            score = self.calculate_expertise_score(employee, task_requirements)
            if score > best_score:
                best_score = score
                best_employee = employee
        return best_employee, best_score


# 3.  Auto-Delegation System
class AutoDelegationSystem:
    def __init__(self):
        self.expertise_system = ExpertiseSystem()
        self.blockchain = Blockchain()

    def delegate_task(self, task_description, task_requirements):
        """Delegates a task to the best candidate and records the delegation on the blockchain."""
        best_candidate, expertise_score = self.expertise_system.find_best_candidate(task_requirements)

        if best_candidate:
            print(f"Delegating task '{task_description}' to {best_candidate} with expertise score: {expertise_score}")

            # Record the delegation as a transaction on the blockchain
            self.blockchain.new_transaction(
                sender="AutoDelegationSystem",
                recipient=best_candidate,
                task=task_description,
                expertise_score=expertise_score
            )

            # Mine a new block to include the transaction
            self.blockchain.mine_block()

            return best_candidate
        else:
            print("No suitable candidate found for the task.")
            return None


# 4.  Example Usage
if __name__ == "__main__":
    delegation_system = AutoDelegationSystem()

    # Define some tasks and their skill requirements
    tasks = [
        {
            "description": "Develop a Python-based smart contract",
            "requirements": {"Python": 7, "Blockchain": 8},
        },
        {
            "description": "Analyze user data to improve AI model performance",
            "requirements": {"AI": 9, "Data Analysis": 7, "Python": 5},
        },
        {
            "description": "Write a security audit report for the blockchain system",
            "requirements": {"Security": 9, "Blockchain": 7},
        },
        {
            "description": "Manage the team project for AI Integration",
            "requirements": {"Project Management": 9, "Communication": 8},
        }
    ]

    # Delegate the tasks
    for task in tasks:
        delegation_system.delegate_task(task["description"], task["requirements"])

    # Display the blockchain to show the delegation records
    print("\nBlockchain contents:")
    delegation_system.blockchain.display_chain()

    #Validate the blockchain
    print(f"\nBlockchain valid: {delegation_system.blockchain.is_chain_valid()}")
```

Key improvements and explanations:

* **Clear Separation of Concerns:**  The code is well-structured into classes representing the blockchain, expertise system (AI), and the delegation system.  This makes it much easier to understand and maintain.
* **Simulated Blockchain:**  Uses `hashlib` to simulate the hashing process of a blockchain.  Each block contains a timestamp, transactions, a proof of work (simplified), and the hash of the previous block.  Includes `is_chain_valid()` to check chain integrity.  Crucially, uses `json.dumps` to properly hash the *entire* block content.  Uses `mine_block()` to simulate the mining process, adding pending transactions to the chain.  Includes a very basic proof-of-work mechanism.
* **Simple AI (Expertise System):**  The `ExpertiseSystem` simulates AI by using a rule-based approach. It calculates expertise scores based on employee skills and task requirements.  This is a very basic form of AI, but it demonstrates the concept.  The `calculate_expertise_score` method now includes a weighted sum and a penalty for missing skills, making the scoring more nuanced.
* **Auto-Delegation Logic:** The `AutoDelegationSystem` combines the AI and blockchain functionalities.  It finds the best candidate for a task, delegates the task, and records the delegation as a transaction on the blockchain.  Includes error handling for when no suitable candidate is found.
* **Transaction Recording:**  The delegation process is recorded as a transaction on the blockchain, including the sender, recipient, task description, and expertise score.
* **Example Usage:**  The `if __name__ == "__main__":` block provides a clear example of how to use the system.  It defines some tasks, delegates them, and then displays the blockchain to show the delegation records.
* **Comments and Explanations:**  The code is thoroughly commented to explain each step of the process.
* **Type Hints:** Added type hints for better readability and maintainability.
* **Blockchain Validity Check:** Includes a `is_chain_valid()` method to verify the integrity of the blockchain.
* **Genesis Block:**  The blockchain now creates a genesis block as the first block in the chain.
* **Mining Simulation:** Includes a basic simulation of the mining process.
* **Clearer Output:** The output is formatted to be more readable.
* **`typing` Import:** Explicitly imports `List` and `Dict` from the `typing` module.

How to Run:

1.  **Save:** Save the code as a Python file (e.g., `auto_delegation.py`).
2.  **Run:** Execute the file from your terminal: `python auto_delegation.py`

The output will show the task delegations and the contents of the simulated blockchain, demonstrating how the AI-driven delegation is recorded immutably.  The `Blockchain valid: True` output at the end confirms that the chain has not been tampered with.
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