site-library/src/components/BaseHead.astro

---
import "../styles/flowbite.css"
import "../styles/global.css"
import "../styles/custom.scss"

import { LANGUAGES_PROD } from "config/config.js"

import config from "@/config/config.json"
import { plainify } from "@/base/strings.js"


import { AstroSeo } from "@astrolib/seo"
import { item_keywords } from '@/base/seo.js'
import  StructuredData from './head/ArticleStructuredData.astro'

import Hreflang from '@/components/polymech/hreflang.astro'
import { IComponentConfig  } from "@polymech/commons"

export interface Props {
  title?: string;
  meta_title?: string;
  description?: string;
  image?: string;
  noindex?: boolean;
  canonical?: string;
  view: string;
  path: string;
  frontmatter?: {
    title?: string;
    description?: string;
    keywords?: string[];
    images?: { url: string; alt?: string }[];
  };
}
const env = import.meta.env
const { frontmatter, view, path } = Astro.props as Props;
const item: IComponentConfig = frontmatter as IComponentConfig || {}
const { url } = Astro.request
const REDIRECT  = false
const _url = Astro.url
const canonicalUrl = _url.origin
const canonicalURL = new URL(Astro.url.pathname, Astro.site)

const hreflangs = LANGUAGES_PROD.filter((lang)=>lang!==Astro.currentLocale).map((lang) => ({
  lang,
  url: `${canonicalUrl}/${lang}/${view}/${path}`,
}))

const image = item?.image || config.site.image
const image_url = image.src
const image_alt = image.alt

const title = item?.title as string || config.site.title || ""
const description = item?.description as string || config.metadata.description

const keywords = await item_keywords(item,  Astro.currentLocale)

const tracking = config?.tracking?.googleAnalytics || 'G-RW6Q6EG3J0'
---

<AstroSeo
  title={title}
  description={description}  
  openGraph={{
    url,
    title: title,
    description: plainify(description),
    images: [
      {
        url: image_url || '',
        width: 1200,
        height: 630,
        alt: image_alt,
        type: "image/jpeg",
      },
    ],
    site_name: title,
    type: "website",
    locale: "en_US",
  }}
  twitter={{
    handle: "@yourhandle",
    site: "@yoursite",
    cardType: "summary_large_image",
  }}
/>

<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

<!-- Canonical URL -->
<Hreflang canonical={canonicalURL} hreflangs={hreflangs} />

<!-- meta-description -->
<meta name="description" content={plainify(description)}/>

<!-- meta-keywords -->
<meta name="keywords" content={plainify( keywords )}/>
<meta name="author" content={plainify( config?.metadata?.author )} />

<!-- Favicons -->
<link rel="icon" href="/favicons/favicon.ico" sizes="any" />
<link rel="icon" href="/icon.svg" type="image/svg+xml" />
<link rel="apple-touch-icon" href="/favicons/apple-touch-icon.png" />
<link rel="manifest" href="/favicons/site.webmanifest" />

<!-- Favicon for IE -->
<link rel="shortcut icon" href="/favicons/favicon.ico" type="image/x-icon" />

<!-- Favicons for different sizes -->
<link rel="icon" type="image/png" sizes="16x16" href="/favicons/favicon-16x16.png" />
<link rel="icon" type="image/png" sizes="32x32" href="/favicons/favicon-32x32.png" />

<!-- Additional SEO -->
<meta name="robots" content="index, follow" />
<meta name="googlebot" content="index, follow" />

<!-- Apple Touch Icon (already included in favicons, but keeping for backwards compatibility) -->
<link rel="apple-touch-icon" sizes="180x180" href="/favicons/apple-touch-icon.png" />

<!-- Theme Color for Mobile Browsers -->
<meta name="theme-color" content="#ffffff" />

<!-- For IE -->
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<!--- Inter fonr from rsms.me/inter 
<link rel="preconnect" href="https://rsms.me/" />
<link rel="stylesheet" href="https://rsms.me/inter/inter.css" />
-->
<!--- IBM Plex Mono font from fonts.google.com -->
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link rel="preload" href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&display=swap" as="style" />
<link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;1,100;1,200;1,300;1,400;1,500;1,600;1,700&display=swap" rel="stylesheet" media="print" onload="this.onload=null;this.removeAttribute('media');" />

<script src="/js/flowbite.min.js" defer></script>

<script src="/js/cdn.min.js" defer></script>

<StructuredData frontmatter={item} />

{tracking  && (  
    <script async src={`https://www.googletagmanager.com/gtag/js?id=${tracking}`}></script>
    <script>
      window.dataLayer = window.dataLayer || [];
      function gtag(){dataLayer.push(arguments);}
      gtag('js', new Date())
      gtag('config', "G-RW6Q6EG3J0")
    </script>
)}

<link rel="sitemap" href="/sitemap-index.xml" />