import * as vscode from "vscode";

export const REMOTE_SSH_EXTENSION_IDS = [

"jeanp413.open-remote-ssh",

"codeium.windsurf-remote-openssh",

"anysphere.remote-ssh",

"ms-vscode-remote.remote-ssh",

"google.antigravity-remote-openssh",

] as const;

export type RemoteSshExtensionId = (typeof REMOTE_SSH_EXTENSION_IDS)[number];

/**

* Extensions that spawn ssh without `-F`, so it always reads ~/.ssh/config

* and their renamed configFile setting never applies.

*/

const IGNORED_CONFIG_FILE: readonly RemoteSshExtensionId[] = [

"google.antigravity-remote-openssh",

"codeium.windsurf-remote-openssh",

];

/** The SSH config file the active extension connects through, if configured. */

export function getRemoteSshConfigFile(): string | undefined {

const id = getRemoteSshExtension()?.id;

if (id && IGNORED_CONFIG_FILE.includes(id)) {

return undefined;

}

return (

vscode.workspace.getConfiguration("remote.SSH").get<string>("configFile") ||

undefined

);

}

/**

* VS Code Remote-SSH log layout, shared by the live SSH monitor and the

* support-bundle collector so a future layout change updates one place.

*/

const OUTPUT_LOGGING_DIR_PREFIX = "output_logging_";

const REMOTE_SSH_LOG_NAME_FRAGMENT = "Remote - SSH";

/** True if `dirName` is the exthost dir of a known Remote-SSH extension. */

export function isRemoteSshExtensionDir(dirName: string): boolean {

return (REMOTE_SSH_EXTENSION_IDS as readonly string[]).includes(dirName);

}

/** True if `dirName` is a VS Code shared output channel dir. */

export function isOutputLoggingDir(dirName: string): boolean {

return dirName.startsWith(OUTPUT_LOGGING_DIR_PREFIX);

}

/** True if `fileName` is the Remote-SSH log inside a shared output channel. */

export function isSharedChannelRemoteSshLog(fileName: string): boolean {

return fileName.includes(REMOTE_SSH_LOG_NAME_FRAGMENT);

}

type RemoteSshExtension = vscode.Extension<unknown> & {

id: RemoteSshExtensionId;

};

export function getRemoteSshExtension(): RemoteSshExtension | undefined {

for (const id of REMOTE_SSH_EXTENSION_IDS) {

const extension = vscode.extensions.getExtension(id);

if (extension) {

return extension as RemoteSshExtension;

}

}

return undefined;

}