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import { Command } from "../command.ts";import type { ICompletion } from "../types.ts";
/** Execute auto completion method of command and action. */export class CompleteCommand extends Command {  public constructor(cmd?: Command) {    super();    this.description("Get completions for given action from given command.")      .arguments("<action:string> [command...:string]")      .action(        async (          _,          action: string,          commandNames: string[],        ) => {          let parent: Command | undefined;          const completeCommand: Command = commandNames            .reduce((cmd: Command, name: string): Command => {              parent = cmd;              const childCmd: Command | undefined = cmd.getCommand(name, false);              if (!childCmd) {                throw new Error(                  `Auto-completion failed. Command not found: ${                    commandNames.join(" ")                  }`,                );              }              return childCmd;            }, cmd || this.getMainCommand());
          const completion: ICompletion | undefined = completeCommand            .getCompletion(action);          const result: string[] =            await completion?.complete(completeCommand, parent) ?? [];
          if (result?.length) {            Deno.stdout.writeSync(new TextEncoder().encode(result.join("\n")));          }        },      )      .reset();  }}