from crewai import Agent, Task, Crew
from crewai_tools.aws.s3 import S3WriterTool

# Initialize the tool
s3_writer_tool = S3WriterTool()

# Define an agent that uses the tool
file_writer_agent = Agent(
    role="File Writer",
    goal="Write content to files in S3 buckets",
    backstory="An expert in storing and managing files in cloud storage.",
    tools=[s3_writer_tool],
    verbose=True,
)

# Example task to write a report
write_task = Task(
    description="Generate a summary report of the quarterly sales data and save it to {my_bucket}.",
    expected_output="Confirmation that the report was successfully saved to S3.",
    agent=file_writer_agent,
)

# Create and run the crew
crew = Crew(agents=[file_writer_agent], tasks=[write_task])
result = crew.kickoff(inputs={"my_bucket": "s3://my-bucket/reports/quarterly-summary.txt"})

# Example of using the tool with an agent
file_writer_agent = Agent(
    role="File Writer",
    goal="Write content to files in S3 buckets",
    backstory="An expert in storing and managing files in cloud storage.",
    tools=[s3_writer_tool],
    verbose=True,
)

# Create a task for the agent to write a specific file
write_config_task = Task(
    description="""
    Create a configuration file with the following database settings:
    - host: db.example.com
    - port: 5432
    - username: app_user
    - password: secure_password
    
    Save this configuration as JSON to {my_bucket}.
    """,
    expected_output="Confirmation that the configuration file was successfully saved to S3.",
    agent=file_writer_agent,
)

# Run the task
crew = Crew(agents=[file_writer_agent], tasks=[write_config_task])
result = crew.kickoff(inputs={"my_bucket": "s3://my-bucket/config/db-config.json"})

class S3WriterTool(BaseTool):
    name: str = "S3 Writer Tool"
    description: str = "Writes content to a file in Amazon S3 given an S3 file path"
    
    def _run(self, file_path: str, content: str) -> str:
        try:
            bucket_name, object_key = self._parse_s3_path(file_path)

            s3 = boto3.client(
                's3',
                region_name=os.getenv('CREW_AWS_REGION', 'us-east-1'),
                aws_access_key_id=os.getenv('CREW_AWS_ACCESS_KEY_ID'),
                aws_secret_access_key=os.getenv('CREW_AWS_SEC_ACCESS_KEY')
            )

            s3.put_object(Bucket=bucket_name, Key=object_key, Body=content.encode('utf-8'))
            return f"Successfully wrote content to {file_path}"
        except ClientError as e:
            return f"Error writing file to S3: {str(e)}"