"""gopls adapter."""

from ..workspace import find_root


class Gopls:
    name = "gopls"
    extensions = [".go"]
    root_markers = ["go.work", "go.mod"]
    cmd = ["gopls", "serve"]

    def initialization_options(self):
        return {
            "usePlaceholders": True,
            "staticcheck": True,
            "gofumpt": True,
        }

    def workspace_root(self, filepath: str, fallback: str | None = None) -> str:
        return find_root(filepath, self.root_markers, fallback)

    def prepare_open(self, filepath: str) -> dict | None:
        """Return extra didOpen params if needed. gopls needs didOpen before queries."""
        return None  # handled generically by the bridge