/* ============================================================================
   WHAT WE DO  -  /en/what-we-do  and  /ar/what-we-do
   ----------------------------------------------------------------------------
   Section 2 of docs/SHARPER_Website_Draft_Section_EN_AR.docx: the participatory
   approach, the four connected areas of work, the values that guide them and
   the four principles the approach rests on.

   Overridden field by field by api::what-we-do-page.what-we-do-page; the draft
   copy below is what renders until an editor fills that in.
   ========================================================================= */

import { Card } from "~/components/ui/Card";
import { createTranslator, formatNumber, sectionPath } from "~/i18n";
import { buildBreadcrumbJsonLd, buildMeta } from "~/lib/seo";

import type { Route } from "./+types/what-we-do";
import { isRichTextBlock, type CmsWhatWeDoPage } from "./_page-kit/cms-types";
import {
  list,
  loadSingle,
  toImage,
  toStringList,
} from "./_page-kit/cms.server";
import { pageCopy } from "./_page-kit/copy";
import { routeLocale } from "./_page-kit/locale";
import { RichText } from "./_page-kit/rich-text";
import {
  InfoPanel,
  PageHero,
  PageSection,
  Prose,
  SectionHeader,
  ValueChips,
} from "./_page-kit/sections";

export async function loader({ params }: Route.LoaderArgs) {
  const locale = routeLocale(params);

  const page = await loadSingle<CmsWhatWeDoPage>("what-we-do-page", {
    locale,
    populate: {
      hero: { populate: { media: true, ctas: true } },
      workstreams: { populate: { icon: true } },
      principles: true,
      blocks: { on: { "blocks.rich-text": { populate: "*" } } },
      seo: { populate: { ogImage: true } },
    },
  });

  return {
    locale,
    hero: {
      eyebrow: page?.hero?.eyebrow ?? null,
      headline: page?.hero?.headline ?? null,
      subheading: page?.hero?.subheading ?? null,
      media: toImage(page?.hero?.media, "large") ?? null,
    },
    intro: page?.intro ?? null,
    richTextBlocks: list(page?.blocks)
      .filter(isRichTextBlock)
      .map((block) => ({ id: block.id, body: block.body })),
    workstreams: list(page?.workstreams).map((workstream) => ({
      title: workstream.title,
      description: workstream.description ?? "",
      icon: toImage(workstream.icon, "thumbnail") ?? null,
    })),
    principles: list(page?.principles).map((principle) => ({
      title: principle.title,
      description: principle.description ?? "",
    })),
    guidingValues: toStringList(page?.guidingValues),
    seo: {
      title: page?.seo?.metaTitle ?? null,
      description: page?.seo?.metaDescription ?? null,
      image: toImage(page?.seo?.ogImage, "large") ?? null,
      noIndex: page?.seo?.noIndex ?? false,
    },
  };
}

export function meta({ loaderData, matches }: Route.MetaArgs) {
  const root = matches[0].loaderData;
  const locale = loaderData?.locale ?? root.locale;
  const t = createTranslator(locale);
  const copy = pageCopy(locale).whatWeDo;

  return buildMeta({
    locale,
    pathname: root.pathname,
    siteUrl: root.siteUrl,
    title: loaderData?.seo.title ?? t("nav.sections.whatWeDo"),
    description: loaderData?.seo.description ?? copy.lead,
    ...(loaderData?.seo.image
      ? { image: { url: loaderData.seo.image.src, alt: loaderData.seo.image.alt } }
      : {}),
    noIndex: loaderData?.seo.noIndex ?? false,
    jsonLd: buildBreadcrumbJsonLd(root.siteUrl, [
      { name: t("nav.sections.home"), pathname: sectionPath("home", locale) },
      {
        name: t("nav.sections.whatWeDo"),
        pathname: sectionPath("whatWeDo", locale),
      },
    ]),
  });
}

export default function WhatWeDo({ loaderData }: Route.ComponentProps) {
  const { locale, hero, intro, richTextBlocks } = loaderData;
  const t = createTranslator(locale);
  const copy = pageCopy(locale).whatWeDo;

  const workstreams =
    loaderData.workstreams.length > 0
      ? loaderData.workstreams
      : copy.workstreams.map((workstream) => ({ ...workstream, icon: null }));

  const values =
    loaderData.guidingValues.length > 0 ? loaderData.guidingValues : copy.values;

  return (
    <>
      <PageHero
        title={hero.headline ?? copy.heroHeadline}
        eyebrow={hero.eyebrow ?? t("nav.sections.aboutAndStrategy")}
        lead={hero.subheading ?? copy.lead}
        {...(hero.media ? { media: hero.media } : {})}
      />

      {/* THE FOUR AREAS OF WORK */}
      <PageSection
        aria-labelledby="wwd-workstreams-heading"
        className="pt-0 md:pt-0"
      >
        <div className="flex flex-col gap-2xl">
          <SectionHeader
            id="wwd-workstreams-heading"
            title={copy.workstreamsHeading}
            lead={intro ? undefined : copy.workstreamsIntro}
          />

          {intro ? (
            <Prose>
              <RichText markdown={intro} />
            </Prose>
          ) : null}

          <ul className="grid list-none grid-cols-1 gap-lg md:grid-cols-2">
            {workstreams.map((workstream, index) => (
              <li key={workstream.title}>
                <InfoPanel
                  title={workstream.title}
                  eyebrow={formatNumber(index + 1, locale, {
                    minimumIntegerDigits: 2,
                  })}
                >
                  {workstream.description}
                </InfoPanel>
              </li>
            ))}
          </ul>

          <ValueChips values={values} label={copy.valuesLabel} />
        </div>
      </PageSection>

      {/* HOW WE WORK */}
      <PageSection aria-labelledby="wwd-principles-heading">
        <div className="flex flex-col gap-lg">
          <SectionHeader
            id="wwd-principles-heading"
            title={copy.principlesHeading}
          />

          {loaderData.principles.length > 0 ? (
            <ul className="grid list-none grid-cols-1 gap-lg md:grid-cols-2">
              {loaderData.principles.map((principle) => (
                <li key={principle.title}>
                  <InfoPanel title={principle.title}>
                    {principle.description}
                  </InfoPanel>
                </li>
              ))}
            </ul>
          ) : (
            <Prose>
              <p className="body-md text-[var(--text-secondary)]">
                {copy.principles}
              </p>
            </Prose>
          )}

          {richTextBlocks.map((block) => (
            <Prose key={block.id}>
              <RichText markdown={block.body} />
            </Prose>
          ))}
        </div>
      </PageSection>

      <PageSection>
        <Card.CTA
          headline={t("nav.sections.activities")}
          body={copy.lead}
          action={{
            href: sectionPath("activities", locale),
            label: t("actions.seeActivities"),
          }}
        />
      </PageSection>
    </>
  );
}