"""
GetFileAction — reads a remote file via SSH and saves it as a config snapshot.

Compatible with Linux-based devices (raspberry, server, embedded, other).
"""

from app.models.device import Device
from app.models.object import Object
from app.plugins.base import ActionResult, BaseAction, Emitter
from app.services import snapshot as snapshot_service
from app.services import ssh as ssh_service


class GetFileAction(BaseAction):
    name = "get_file"
    display_name = "Get File (Snapshot)"
    compatible_categories = ["raspberry", "server", "embedded", "other"]
    params_schema = [
        {
            "name": "path",
            "type": "string",
            "label": "File path",
            "required": True,
            "placeholder": "/etc/ntp.conf",
        },
    ]

    async def execute(
        self, device: Device, obj: Object, params: dict, emit: Emitter, db=None
    ) -> ActionResult:
        path = params.get("path", "").strip()
        if not path:
            return ActionResult(success=False, error="No file path specified")

        await emit(f"[{device.ip}] Reading {path}", "info")
        result = await ssh_service.run_command(device, obj, f"cat {path}", db=db)

        if not result.success:
            msg = result.error or result.stderr or f"exit code {result.exit_code}"
            await emit(f"[{device.ip}] Failed: {msg}", "error")
            return ActionResult(
                success=False,
                stdout=result.stdout,
                stderr=result.stderr,
                exit_code=result.exit_code,
                error=msg,
            )

        content = result.stdout
        snap_id, sha256, size = await snapshot_service.save_snapshot(
            device_id=device.id,
            content=content,
            label=path,
        )

        await emit(
            f"[{device.ip}] Snapshot saved: {sha256[:12]}… ({size} bytes, id={snap_id})",
            "info",
        )

        return ActionResult(
            success=True,
            stdout=content,
            exit_code=0,
            data={"snapshot_id": snap_id, "sha256": sha256, "size": size, "path": path},
        )