import { HelpPrinter } from "../internal/cli/HelpPrinter";
import { HARDHAT_EXECUTABLE_NAME, HARDHAT_NAME } from "../internal/constants";
import { task } from "../internal/core/config/config-env";
import { HARDHAT_PARAM_DEFINITIONS } from "../internal/core/params/hardhat-params";

import { TASK_HELP } from "./task-names";

task(TASK_HELP, "Prints this message")
  .addOptionalPositionalParam(
    "task",
    "An optional task to print more info about"
  )
  .setAction(
    async ({ task: taskName }: { task?: string }, { tasks, version }) => {
      const helpPrinter = new HelpPrinter(
        HARDHAT_NAME,
        HARDHAT_EXECUTABLE_NAME,
        version,
        HARDHAT_PARAM_DEFINITIONS,
        tasks
      );

      if (taskName !== undefined) {
        helpPrinter.printTaskHelp(taskName);
        return;
      }

      helpPrinter.printGlobalHelp();
    }
  );