import Yargs from "yargs";

export function getArgs(): Yargs.Argv {
  return Yargs.usage("Usage: barrelsby [options]")
    .example("barrelsby", "Run barrelsby")

    .string("b")
    .alias("b", "baseUrl")
    .nargs("d", 1)
    .describe(
      "b",
      "The base url relative to 'directory' for non-relative imports (with tsconfig's baseUrl)."
    )

    .config("c")
    .alias("c", "config")
    .describe("c", "The location of the config file.")

    .string("d")
    .alias("d", "directory")
    .nargs("d", 1)
    .describe("d", "The directory to create barrels for.")
    .default("d", "./")

    .boolean("D")
    .alias("D", "delete")
    .describe("D", "Delete existing barrel files.")
    .default("D", false)

    .array("e")
    .alias("e", "exclude")
    .describe(
      "e",
      "Excludes any files whose paths match any of the regular expressions."
    )

    .help("h")
    .alias("h", "help")
    .default("h", false)

    .array("i")
    .alias("i", "include")
    .describe(
      "i",
      "Only include files whose paths match any of the regular expressions."
    )

    .string("l")
    .alias("l", "location")
    .describe("l", "The mode for picking barrel file locations")
    .choices("l", ["top", "below", "all", "replace", "branch"])
    .default("l", "top")

    .string("n")
    .alias("n", "name")
    .describe("n", "The name to give barrel files")
    .default("n", "index")

    .string("s")
    .alias("s", "structure")
    .describe("s", "The mode for structuring barrel file exports")
    .choices("s", ["flat", "filesystem"])
    .default("s", "flat")

    .boolean("q")
    .alias("q", "singleQuotes")
    .describe(
      "q",
      "Use single quotes for paths instead of the default double quotes"
    )
    .default("q", false)

    .boolean("S")
    .alias("S", "noSemicolon")
    .describe(
      "S",
      "Omit semicolons from the end of lines in the generated barrel files."
    )
    .default("S", false)

    .version()
    .alias("v", "version")
    .default("v", false)

    .boolean("V")
    .alias("V", "verbose")
    .describe("V", "Display additional logging information")
    .default("V", false);
}