import uuid
import datetime

class WorkspaceManager:
    def __init__(self):
        # The "State" dictionary
        self.artifacts = {} 
        self.history = []

    def create_artifact(self, type, content, metadata=None):
        """
        Creates a new artifact (Image, Data, Note)
        """
        artifact_id = str(uuid.uuid4())[:8] # Short ID
        
        artifact = {
            "id": artifact_id,
            "type": type, # 'text', 'code', 'image', 'chart'
            "content": content,
            "metadata": metadata or {},
            "created_at": str(datetime.datetime.now()),
            "version": 1
        }
        
        self.artifacts[artifact_id] = artifact
        self.history.append(f"Created artifact {artifact_id} ({type})")
        return artifact

    def update_artifact(self, artifact_id, new_content):
        """
        Updates an existing artifact.
        """
        if artifact_id in self.artifacts:
            self.artifacts[artifact_id]["content"] = new_content
            self.artifacts[artifact_id]["version"] += 1
            self.history.append(f"Updated artifact {artifact_id}")
            return self.artifacts[artifact_id]
        return None

    def get_artifact(self, artifact_id):
        return self.artifacts.get(artifact_id)

    def list_artifacts(self):
        return list(self.artifacts.values())