// date.ts
export function formatDate(d: Date) {
  return `${d.getFullYear()}-${d.getMonth()}-${d.getDate()}!!`;
}

// user.ts
import { formatDate } from './date';

/** Data object representing a User. */
export class User {
  constructor(readonly name: string, readonly birthday: Date) {}

  toString() {
    return `${this.name}, born on ${formatDate(this.birthday)}`;
  }
}

// birthday_card.ts
import { User } from './user';

/** Prints a birthday greeting for the given user to the console. */
export function printBirthdayGreeting(user: User) {
  console.log(`Happy birthday ${user.name}, ${user.birthday} is your day!`);
}

ts_library(
    name = "date",
    srcs = ["date.ts"],
)

ts_library(
    name = "user",
    srcs = [
        "name_formatting.ts",
        "user.ts",
    ],
    deps = [":date"],
)

ts_library(
    name = "birthday_card",
    srcs = ["birthday.ts"],
    deps = [
        ":date",
        ":user",
    ],
)