---
import SiteLayout from "../../components/SiteLayout.astro";
import { getSpeechArchive, uniqueSorted } from "../../lib/speeches";

const speeches = getSpeechArchive();
const years = uniqueSorted(speeches.map((speech) => speech.year), "desc");
const speakers = uniqueSorted(speeches.map((speech) => speech.speaker));
---

<SiteLayout
  title="Speeches Archive &#8211; FFWPU Ireland"
  description="Search the FFWPU Ireland archive of speeches by Rev. Sun Myung Moon and Dr. Hak Ja Han Moon by year, speaker, and text."
  bodyClass="page-template page-template-templates page-template-template-onecolumn page-template-templatestemplate-onecolumn-php page custom-background tribe-no-js metaslider-plugin parabola-image-three caption-light meta-light parabola_triagles parabola-menu-left"
  pathname="/speeches/"
  canonical="/speeches/"
>
  <div id="main">
    <div id="forbottom">
      <div style="clear:both;"> </div>

      <section id="container" class="one-column speeches-archive">
        <div id="content" role="main">
          <div class="post page type-page status-publish hentry">
            <h1 class="entry-title">Speeches Archive</h1>

            <div class="entry-content">
              <form class="speech-filters" id="speech-filters" role="search">
                <div class="speech-filter speech-filter-search">
                  <label for="speech-search">Search text</label>
                  <input id="speech-search" name="q" type="search" autocomplete="off" placeholder="Search titles and full speech text" />
                </div>

                <div class="speech-filter">
                  <label for="speech-year">Year</label>
                  <select id="speech-year" name="year">
                    <option value="">All years</option>
                    {years.map((year) => <option value={year}>{year}</option>)}
                  </select>
                </div>

                <div class="speech-filter">
                  <label for="speech-speaker">Speaker</label>
                  <select id="speech-speaker" name="speaker">
                    <option value="">All speakers</option>
                    {speakers.map((speaker) => <option value={speaker}>{speaker}</option>)}
                  </select>
                </div>

                <button class="speech-reset" type="reset">Reset filters</button>
              </form>

              <div class="speech-archive-status" aria-live="polite">
                <strong id="speech-result-count">{speeches.length}</strong> speeches
              </div>

              <div class="speech-results" id="speech-results">
                {
                  speeches.map((speech) => (
                    <article class="speech-result">
                      <div class="speech-result-meta">
                        <span>{speech.year}</span>
                        <span>{speech.speaker}</span>
                      </div>
                      <h2 class="speech-result-title">
                        <a href={speech.url}>{speech.title}</a>
                      </h2>
                      <p>{speech.excerpt}</p>
                    </article>
                  ))
                }
              </div>
            </div>
          </div>
        </div>
      </section>

      <div style="clear:both;"></div>
    </div>
  </div>

  <script is:inline slot="scripts">
    (() => {
      const form = document.getElementById("speech-filters");
      const results = document.getElementById("speech-results");
      const count = document.getElementById("speech-result-count");
      const searchInput = document.getElementById("speech-search");
      const yearSelect = document.getElementById("speech-year");
      const speakerSelect = document.getElementById("speech-speaker");

      if (!form || !results || !count || !searchInput || !yearSelect || !speakerSelect) {
        return;
      }

      let speeches = [];
      let renderTimer = 0;

      function normalize(value) {
        return value
          .normalize("NFKD")
          .replace(/[\u0300-\u036f]/g, "")
          .toLowerCase()
          .trim();
      }

      function selectedFilters() {
        return {
          q: searchInput.value.trim(),
          year: yearSelect.value,
          speaker: speakerSelect.value,
        };
      }

      function syncUrl(filters) {
        const params = new URLSearchParams();
        Object.entries(filters).forEach(([key, value]) => {
          if (value) {
            params.set(key, value);
          }
        });

        const nextUrl = params.toString() ? `${window.location.pathname}?${params}` : window.location.pathname;
        window.history.replaceState(null, "", nextUrl);
      }

      function hydrateFromUrl() {
        const params = new URLSearchParams(window.location.search);
        searchInput.value = params.get("q") || "";
        yearSelect.value = params.get("year") || "";
        speakerSelect.value = params.get("speaker") || "";
      }

      function matchesSpeech(speech, filters) {
        if (filters.year && speech.year !== filters.year) {
          return false;
        }
        if (filters.speaker && speech.speaker !== filters.speaker) {
          return false;
        }
        if (!filters.q) {
          return true;
        }

        const terms = normalize(filters.q).split(/\s+/).filter(Boolean);
        return terms.every((term) => speech.searchText.includes(term));
      }

      function appendMeta(parent, values) {
        values.filter(Boolean).forEach((value) => {
          const span = document.createElement("span");
          span.textContent = value;
          parent.append(span);
        });
      }

      function renderSpeech(speech) {
        const article = document.createElement("article");
        article.className = "speech-result";

        const meta = document.createElement("div");
        meta.className = "speech-result-meta";
        appendMeta(meta, [speech.year, speech.speaker]);

        const title = document.createElement("h2");
        title.className = "speech-result-title";
        const link = document.createElement("a");
        link.href = speech.url;
        link.textContent = speech.title;
        title.append(link);

        const excerpt = document.createElement("p");
        excerpt.textContent = speech.excerpt;

        article.append(meta, title, excerpt);
        return article;
      }

      function render() {
        const filters = selectedFilters();
        const matched = speeches.filter((speech) => matchesSpeech(speech, filters));
        const fragment = document.createDocumentFragment();

        if (matched.length) {
          matched.forEach((speech) => fragment.append(renderSpeech(speech)));
        } else {
          const empty = document.createElement("p");
          empty.className = "speech-empty-state";
          empty.textContent = "No speeches match these filters.";
          fragment.append(empty);
        }

        results.replaceChildren(fragment);
        count.textContent = matched.length.toString();
        syncUrl(filters);
      }

      function queueRender() {
        window.clearTimeout(renderTimer);
        renderTimer = window.setTimeout(render, 120);
      }

      hydrateFromUrl();

      fetch("/speeches/search-index.json")
        .then((response) => {
          if (!response.ok) {
            throw new Error(`Speech index request failed: ${response.status}`);
          }
          return response.json();
        })
        .then((data) => {
          speeches = data;
          render();
          form.addEventListener("input", queueRender);
          form.addEventListener("change", render);
          form.addEventListener("reset", () => {
            window.setTimeout(render, 0);
          });
        })
        .catch(() => {
          count.textContent = results.querySelectorAll(".speech-result").length.toString();
        });
    })();
  </script>
</SiteLayout>