MyBlog-Next/src/components/Header.astro

---
import Hr from "./Hr.astro";
import LinkButton from "./LinkButton.astro";

export interface Props {
  activeNav?: "posts" | "tags" | "about" | "search";
}

const { activeNav } = Astro.props;
---

<header>
  <a id="skip-to-content" href="#main-content">Skip to content</a>
  <div class="nav-container">
    <div class="top-nav-wrap">
      <a href="/" class="logo">{import.meta.env.PUBLIC_SITE_TITLE}</a>
      <button class="hamburger-menu">
        <div class="icon-container flex">
          <div id="first-line"></div>
          <div id="second-line"></div>
          <div id="third-line"></div>
        </div>
      </button>
    </div>
    <nav class="display-none sm:flex">
      <ul>
        <li>
          <a href="/posts" class={activeNav === "posts" ? "active" : ""}
            >Posts</a
          >
        </li>
        <li>
          <a href="/tags" class={activeNav === "tags" ? "active" : ""}>Tags</a>
        </li>
        <li>
          <a href="/about" class={activeNav === "about" ? "active" : ""}
            >About</a
          >
        </li>
      </ul>
      <div class="button-wrapper">
        <LinkButton
          href="/search"
          className={`focus-outline p-1 ${
            activeNav === "search" ? "active" : ""
          }`}
        >
          <svg xmlns="http://www.w3.org/2000/svg"
            ><path
              d="M19.023 16.977a35.13 35.13 0 0 1-1.367-1.384c-.372-.378-.596-.653-.596-.653l-2.8-1.337A6.962 6.962 0 0 0 16 9c0-3.859-3.14-7-7-7S2 5.141 2 9s3.14 7 7 7c1.763 0 3.37-.66 4.603-1.739l1.337 2.8s.275.224.653.596c.387.363.896.854 1.384 1.367l1.358 1.392.604.646 2.121-2.121-.646-.604c-.379-.372-.885-.866-1.391-1.36zM9 14c-2.757 0-5-2.243-5-5s2.243-5 5-5 5 2.243 5 5-2.243 5-5 5z"
            ></path>
          </svg>
        </LinkButton>

        <button id="theme-btn" class="focus-outline">
          <svg xmlns="http://www.w3.org/2000/svg" id="moon-svg"
            ><path
              d="M20.742 13.045a8.088 8.088 0 0 1-2.077.271c-2.135 0-4.14-.83-5.646-2.336a8.025 8.025 0 0 1-2.064-7.723A1 1 0 0 0 9.73 2.034a10.014 10.014 0 0 0-4.489 2.582c-3.898 3.898-3.898 10.243 0 14.143a9.937 9.937 0 0 0 7.072 2.93 9.93 9.93 0 0 0 7.07-2.929 10.007 10.007 0 0 0 2.583-4.491 1.001 1.001 0 0 0-1.224-1.224zm-2.772 4.301a7.947 7.947 0 0 1-5.656 2.343 7.953 7.953 0 0 1-5.658-2.344c-3.118-3.119-3.118-8.195 0-11.314a7.923 7.923 0 0 1 2.06-1.483 10.027 10.027 0 0 0 2.89 7.848 9.972 9.972 0 0 0 7.848 2.891 8.036 8.036 0 0 1-1.484 2.059z"
            ></path>
          </svg>
          <svg xmlns="http://www.w3.org/2000/svg" id="sun-svg"
            ><path
              d="M6.993 12c0 2.761 2.246 5.007 5.007 5.007s5.007-2.246 5.007-5.007S14.761 6.993 12 6.993 6.993 9.239 6.993 12zM12 8.993c1.658 0 3.007 1.349 3.007 3.007S13.658 15.007 12 15.007 8.993 13.658 8.993 12 10.342 8.993 12 8.993zM10.998 19h2v3h-2zm0-17h2v3h-2zm-9 9h3v2h-3zm17 0h3v2h-3zM4.219 18.363l2.12-2.122 1.415 1.414-2.12 2.122zM16.24 6.344l2.122-2.122 1.414 1.414-2.122 2.122zM6.342 7.759 4.22 5.637l1.415-1.414 2.12 2.122zm13.434 10.605-1.414 1.414-2.122-2.122 1.414-1.414z"
            ></path>
          </svg>
        </button>
      </div>
    </nav>
  </div>
  <Hr />
</header>

<style>
  #skip-to-content {
    @apply bg-skin-card py-2 px-3 absolute -top-full focus:top-4 left-16 z-50 transition-all;
  }
  header hr {
    @apply border-skin-line mx-4 max-w-3xl sm:mx-auto;
  }
  .nav-container {
    @apply max-w-3xl mx-auto flex flex-col sm:flex-row justify-between items-center;
    /* border-b-2 border-opacity-40 border-b-skin-line */
  }
  .top-nav-wrap {
    @apply w-full p-4 sm:py-8 flex justify-between items-center;
  }
  .logo {
    @apply font-semibold text-xl sm:text-2xl py-1;
  }
  .hamburger-menu {
    @apply p-2 sm:hidden;
  }
  .hamburger-menu svg {
    @apply fill-skin-base w-6 h-6 scale-125;
  }
  nav {
    @apply w-full py-2 sm:py-0 flex flex-col items-center sm:justify-end sm:flex-row sm:space-x-4 bg-skin-fill shadow sm:shadow-none;
  }
  nav ul {
    @apply flex flex-col sm:flex-row sm:space-x-4;
  }
  nav li {
    @apply py-2 text-center my-2 sm:my-0;
  }
  nav a {
    @apply py-2 px-3 font-medium hover:text-skin-accent;
  }
  nav a.active {
    @apply underline underline-offset-4 decoration-wavy decoration-2;
  }
  .button-wrapper {
    @apply flex my-2 sm:my-0 space-x-4;
  }
  .button-wrapper a.active svg {
    @apply fill-skin-accent;
  }
  nav button {
    @apply p-1;
  }
  nav button svg {
    @apply w-6 h-6 fill-skin-base hover:fill-skin-accent;
  }

  .icon-container {
    @apply w-6 h-5 flex-col justify-between items-end;
  }
  .icon-container div {
    @apply bg-skin-inverted h-0.5 transition-all;
  }
  #first-line {
    @apply w-full;
  }
  #second-line {
    @apply w-3/4;
  }
  #third-line {
    @apply w-1/2;
  }
</style>

<script>
  // Toggle Theme
  const themeBtn = document.querySelector("#theme-btn");
  const htmlClassList = document.querySelector("html")?.classList;
  themeBtn?.addEventListener("click", function () {
    if (htmlClassList?.contains("theme-dark")) {
      localStorage.setItem("theme", "light");
      htmlClassList?.remove("theme-dark");
    } else {
      localStorage.setItem("theme", "dark");
      htmlClassList?.add("theme-dark");
    }
  });

  // Toggle menu
  const menuBtn = document.querySelector(".hamburger-menu");
  const navClassList = document.querySelector("nav")?.classList;

  const iconContainer = document.querySelector(".icon-container")?.classList;
  const firstLine = document.querySelector("#first-line")?.classList;
  const secondLine = document.querySelector("#second-line ")?.classList;
  const thirdLine = document.querySelector("#third-line")?.classList;

  menuBtn!.addEventListener("click", function () {
    if (navClassList?.contains("display-none")) {
      navClassList?.remove("display-none");

      // icon animation
      iconContainer?.remove("flex");
      iconContainer?.add("relative");
      firstLine?.add("rotate-45", "absolute", "bottom-1/2");
      thirdLine?.add("display-none");
      secondLine?.add("!w-full", "-rotate-45", "absolute", "bottom-1/2");
    } else {
      navClassList?.add("display-none");

      // icon animation
      iconContainer?.add("flex");
      iconContainer?.remove("relative");
      firstLine?.remove("rotate-45", "absolute", "bottom-1/2");
      thirdLine?.remove("display-none");
      secondLine?.remove("!w-full", "-rotate-45", "absolute", "bottom-1/2");
    }
  });
</script>