from base_agent import BaseAgent
from models import AgentState
from typing import AsyncGenerator
import json

class ComponentDiagramGenerator(BaseAgent):
    async def __call__(self, state: AgentState) -> AsyncGenerator[str, None]:
        prompt_template = """
        Generate PlantUML code for a component diagram based on the following project:

        Project: {project_name}
        Description: {project_description}
        Entities: {entities_classes}

        Instructions:
        1. Show the main system components and their interfaces
        2. Include relationships between components
        3. Use standard PlantUML component diagram syntax
        4. Don't include any explanation, just the PlantUML code

        Example format (DO NOT TREAT THIS AS VARIABLES):
        '''plantuml
        @startuml
        component [Component1] as C1
        component [Component2] as C2
        C1 --> C2 : uses
        @enduml
        '''
        """

        async for chunk in self._stream_process(
            state=state,
            prompt_template=prompt_template,
            output_key="component_diagram",
            step_name="generate_component_diagram",
            project_name=state["project_name"],
            project_description=state["project_description"],
            entities_classes=state["entities_classes"]
        ):
            yield chunk