import subprocess
from collections.abc import Mapping, Sequence

from .models import CompletedCommand  # type: ignore[reportMissingImports]


class SubprocessRunner:
    """Small injectable subprocess seam used by every provider adapter."""

    def run(self, argv: Sequence[str], *, cwd=None, env: Mapping[str, str] | None = None, timeout=None):
        process = subprocess.run(
            list(argv),
            cwd=str(cwd) if cwd else None,
            env=dict(env) if env is not None else None,
            timeout=timeout,
            capture_output=True,
            text=True,
            check=False,
        )
        return CompletedCommand(process.stdout, process.stderr, process.returncode)


class RecordingRunner:
    """Useful public fake runner for consumers and contract tests."""

    def __init__(self, responses=None):
        self.calls = []
        self.responses = list(responses or [])

    def run(self, argv, **kwargs):
        self.calls.append((list(argv), kwargs))
        if self.responses:
            response = self.responses.pop(0)
            return response if isinstance(response, CompletedCommand) else CompletedCommand(*response)
        return CompletedCommand("{}")