import os
from pathlib import Path
from typing import List

from .dsl import Object, Morphism, Functor, TimeMonoid, Limit, Colimit
from .core import canonicalize_dsl


def generate_adapters(dsl_payload, output_dir: str = "adapters") -> List[str]:
    """Generate skeleton adapter stubs for each Object in the DSL payload.

    This is a minimal scaffolding that creates a per-object adapter module
    with a basic interface to connect to devices/entities described by the DSL.
    """
    Path(output_dir).mkdir(parents=True, exist_ok=True)
    adapters_created: List[str] = []

    objects = dsl_payload.get("objects", [])
    for obj in objects:
        name = obj.get("name", f"object_{obj.get('id','')}").lower().replace(" ", "_")
        mod_path = Path(output_dir) / f"adapter_{name}.py"
        if mod_path.exists():
            continue
        content = f"""# Auto-generated adapter for {name}
class {name.capitalize()}Adapter:
    def __init__(self):
        pass

    def connect(self):
        # Placeholder: establish connection to device or data source
        return True

    def read(self):
        # Placeholder: read data from device
        return {{}}

    def write(self, payload):
        # Placeholder: write data/commands to device
        return True
"""
        mod_path.write_text(content)
        adapters_created.append(str(mod_path))
    return adapters_created