{{define "title"}}{{ tr "Posts" }} · {{ tr "Volumen admin" }}{{end}}
{{define "content"}}
{{if .Notice}}
  <div class="status status--ok" role="status">
    <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#check-circle"></use></svg>
    <div>{{ .Notice }}</div>
  </div>
{{end}}

{{if .Stats.Total}}
<dl class="stats">
  <div><dt>{{ tr "Published" }}</dt><dd>{{ .Stats.Published }}</dd></div>
  <div><dt>{{ tr "Drafts" }}</dt><dd>{{ .Stats.Drafts }}</dd></div>
  <div><dt>{{ tr "Scheduled" }}</dt><dd>{{ .Stats.Scheduled }}</dd></div>
  <div><dt>{{ tr "Total" }}</dt><dd>{{ .Stats.Total }}</dd></div>
</dl>

{{if or .Stats.Recent .Stats.Upcoming}}
<div class="grid--fit">
  {{if .Stats.Recent}}
    <section class="card">
      <div class="card__head">
        <h2>{{ tr "Recent published" }}</h2>
      </div>
      <div class="quick">
        {{range .Stats.Recent}}
          <a class="quick__row" href="/admin/posts/{{ .Slug }}/edit">
            <span class="quick__title">{{ .Title }}</span>
            <span class="quick__when">{{ .DateString }}</span>
          </a>
        {{end}}
      </div>
    </section>
  {{end}}
  {{if .Stats.Upcoming}}
    <section class="card">
      <div class="card__head">
        <h2>{{ tr "Upcoming" }}</h2>
      </div>
      <div class="quick">
        {{range .Stats.Upcoming}}
          <a class="quick__row" href="/admin/posts/{{ .Slug }}/edit">
            <span class="quick__title">{{ .Title }}</span>
            <span class="quick__when">{{ .When }}</span>
          </a>
        {{end}}
      </div>
    </section>
  {{end}}
</div>
{{end}}
{{end}}

<div class="page-head">
  <div class="page-head__text">
    <h1>{{ tr "Posts" }}</h1>
    <p class="page-head__lede">{{ trn (len .Posts) "posts.total" }}</p>
  </div>
  <div class="page-head__actions">
    <a class="btn btn--ghost" href="/admin/posts/import">
      <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#upload"></use></svg>
      {{ tr "Import" }}
    </a>
    <a class="btn btn--primary" href="/admin/posts/new">
      <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#plus"></use></svg>
      {{ tr "New post" }}
    </a>
  </div>
</div>

<div class="toolbar">
  <label class="bulk-all" id="bulk-select-wrap">
    <input type="checkbox" id="bulk-all" aria-label="{{ tr "Select all posts" }}">
  </label>
  <div class="search">
    <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#search"></use></svg>
    <label class="visually-hidden" for="post-search">{{ tr "Search title, slug, tag..." }}</label>
    <input id="post-search" class="control" type="search"
           placeholder="{{ tr "Search title, slug, tag..." }}" value="{{ .Q }}">
  </div>
  <div class="filters" id="post-filters" role="group" aria-label="{{ tr "Filter by status" }}">
    <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#filter"></use></svg>
    <button type="button" class="chip" data-filter="all" aria-pressed="true">{{ tr "All" }}</button>
    <button type="button" class="chip" data-filter="published" aria-pressed="false">{{ tr "Published" }}</button>
    <button type="button" class="chip" data-filter="draft" aria-pressed="false">{{ tr "Drafts" }}</button>
    <button type="button" class="chip" data-filter="scheduled" aria-pressed="false">{{ tr "Scheduled" }}</button>
  </div>
  <span class="toolbar__count" id="post-count" aria-live="polite"></span>
  {{if .TagCounts}}
    <div class="filters" id="post-tag-filters" role="group" aria-label="{{ tr "Filter by tag" }}">
      <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#tag"></use></svg>
      {{range .TagCounts}}
        <button type="button" class="chip" data-tag="{{ .Name }}" aria-pressed="false"
                title="{{ trn .Count "posts.count" }}">{{ .Name }} <span class="chip__count">{{ .Count }}</span></button>
      {{end}}
    </div>
  {{end}}
</div>

<form method="post" action="/admin/posts/bulk" id="bulk-form" class="bulk-bar" hidden
      data-confirm="{{ tr "Delete the selected posts?" }}">
  <input type="hidden" name="_csrf" value="{{ $.CSRFToken }}">
  <input type="hidden" name="slugs" id="bulk-slugs" value="">
  <span class="bulk-bar__label"><span id="bulk-count">0</span></span>
  <button type="submit" name="action" value="publish" class="btn btn--sm">{{ tr "Publish" }}</button>
  <button type="submit" name="action" value="draft" class="btn btn--sm">{{ tr "Move to draft" }}</button>
  <button type="submit" name="action" value="delete" class="btn btn--sm btn--danger">{{ tr "Delete" }}</button>
  <span class="bulk-bar__spacer"></span>
  <button type="button" class="btn btn--ghost btn--sm" id="bulk-cancel">{{ tr "Cancel" }}</button>
</form>

{{if not .Posts}}
  <div class="empty">
    <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#file"></use></svg>
    <h2>{{ tr "No posts yet" }}</h2>
    <p class="empty__note">{{ tr "Create your first post to get started." }}</p>
    <a class="btn btn--primary" href="/admin/posts/new">{{ tr "Create post" }}</a>
  </div>
{{else}}
  <div class="post-grid" id="post-grid" role="region" aria-label="{{ tr "Posts" }}">
    <div class="empty empty--span" id="post-no-results" hidden>
      <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#search"></use></svg>
      <h2>{{ tr "No posts match your search" }}</h2>
      <p class="empty__note">{{ tr "Try a different search term or status filter." }}</p>
      <button type="button" class="btn btn--ghost" id="post-clear-filters">{{ tr "Clear filters" }}</button>
    </div>
    {{range .Posts}}
      <article class="post"
               data-title="{{ lower .Title }}"
               data-slug="{{ .Slug }}"
               data-tags="|{{ lower (join .Tags "|") }}|"
               data-excerpt="{{ lower .Excerpt }}"
               data-status="{{ .Status }}"
               {{if .VariantsJS}}data-variants="{{ .VariantsJS }}"{{end}}
               {{if .Timestamp}}data-timestamp="{{ .Timestamp }}"{{end}}>
        <label class="post__check">
          <input type="checkbox" class="bulk-one" value="{{ .GroupSlugs }}" aria-label="{{ trf "Select %s" .Title }}">
        </label>
        <a class="post__link" href="/admin/posts/{{ .Slug }}/edit">
          <div class="post__cover"{{if .Cover}} data-cover="{{ .Cover }}"{{end}}>
            <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#image"></use></svg>
          </div>
          <div class="post__body">
            <h2 class="post__title">{{ .Title }}</h2>
            <p class="post__excerpt"{{if not .Excerpt}} hidden{{end}}>{{ .Excerpt }}</p>
            <div class="post__meta">
              {{if not .Variants}}<span class="tag">{{ .Lang }}</span>{{end}}
              <span class="tag tag--warn badge-draft" {{if not .Draft}}hidden{{end}}>{{ tr "Draft" }}</span>
              <span class="tag tag--accent badge-scheduled" {{if not .Scheduled}}hidden{{end}}>{{ tr "Scheduled" }}</span>
              {{if .Series}}<span class="tag tag--accent badge-series">{{ .Series }}{{if .HasOrder}} · {{ .SeriesOrder }}{{end}}</span>{{else}}<span class="tag tag--accent badge-series" hidden></span>{{end}}
              {{if .DateString}}<span class="post__date" data-date="{{ .DateString }}" title="{{ .DateString }}">{{ .DateString }}</span>{{end}}
            </div>
          </div>
        </a>
        <div class="post__foot">
          <a class="btn btn--ghost btn--sm" href="/admin/posts/{{ .Slug }}/edit">
            <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#pencil"></use></svg>
            {{ tr "Edit" }}
          </a>
          {{if gt (len .Variants) 1}}
            <span class="post__langs" role="group" aria-label="{{ tr "Language version" }}">
              {{range .Variants}}<button type="button" class="chip chip--lang" data-lang="{{ .Lang }}" lang="{{ .Lang }}"
                      aria-pressed="{{if eq .Lang $.Lang}}true{{else}}false{{end}}">{{ .Lang }}</button>{{end}}
            </span>
          {{end}}
          <span class="flex"></span>
          <form method="post" action="/admin/posts/{{ .Slug }}/delete"
                data-confirm="{{ tr "Delete this post?" }}" class="form-inline">
            <input type="hidden" name="_csrf" value="{{ $.CSRFToken }}">
            <button type="submit" class="icon-btn icon-btn--danger" aria-label="{{ tr "Delete post" }}">
              <svg aria-hidden="true"><use href="/admin/assets/graphis.svg#trash"></use></svg>
            </button>
          </form>
        </div>
      </article>
    {{end}}
  </div>
{{end}}

<script nonce="{{ .CSPNonce }}">
  (() => {
    const search = document.getElementById("post-search");
    const filterButtons = document.querySelectorAll("#post-filters .chip");
    const tagButtons = document.querySelectorAll("#post-tag-filters .chip");
    const cards = document.querySelectorAll("#post-grid .post");
    const countEl = document.getElementById("post-count");
    const noResultsEl = document.getElementById("post-no-results");
    const clearBtn = document.getElementById("post-clear-filters");
    const bulkAll = document.getElementById("bulk-all");
    const bulkForm = document.getElementById("bulk-form");
    const bulkCount = document.getElementById("bulk-count");
    const bulkSlugs = document.getElementById("bulk-slugs");
    const bulkCancel = document.getElementById("bulk-cancel");
    const checkboxes = document.querySelectorAll(".bulk-one");
    let currentFilter = "all";
    let currentTag = "";
    const total = cards.length;

    function applyFilters() {
      const q = (search.value || "").toLowerCase().trim();
      const tagQ = currentTag.toLowerCase();
      let visible = 0;
      cards.forEach((card) => {
        const tags = card.dataset.tags || "";
        const haystack = [card.dataset.title, card.dataset.slug, tags, card.dataset.excerpt]
          .join(" ");
        const hit = (!q || haystack.includes(q))
          && (currentFilter === "all" || card.dataset.status === currentFilter)
          // Tags are matched with delimiters around each one, so a tag
          // containing a space still matches exactly.
          && (!tagQ || tags.includes("|" + tagQ + "|"));
        card.classList.toggle("is-hidden", !hit);
        if (hit) visible += 1;
      });
      if (countEl) {
        const hasFilter = q || currentFilter !== "all" || currentTag !== "";
        countEl.textContent = hasFilter
          ? window.__("filter.of").replace("%d", String(visible)).replace("%d", String(total))
          : window.__n("posts.count", total);
        countEl.classList.toggle("is-empty", visible === 0);
      }
      // The no-results panel lives inside the post grid, which an empty
      // instance does not render at all.
      if (noResultsEl) noResultsEl.hidden = visible !== 0;
    }

    function visibleChecked() {
      return Array.from(checkboxes)
        .filter((cb) => cb.closest(".post") && !cb.closest(".post").classList.contains("is-hidden") && cb.checked);
    }

    function updateBulkBar() {
      const selected = visibleChecked();
      const visibleCards = Array.from(cards).filter((c) => !c.classList.contains("is-hidden"));
      const visCbs = visibleCards.map((c) => c.querySelector(".bulk-one")).filter(Boolean);
      const allChecked = visCbs.length > 0 && visCbs.every((cb) => cb.checked);
      bulkAll.checked = allChecked;
      bulkAll.indeterminate = !allChecked && selected.length > 0;
      bulkForm.hidden = selected.length === 0;
      bulkCount.textContent = window.__n("bulk.selected", selected.length);
      bulkSlugs.value = selected.map((cb) => cb.value).join(",");
    }

    const syncUrl = () => {
      const params = new URLSearchParams(location.search);
      const value = search.value.trim();
      if (value) params.set("q", value);
      else params.delete("q");
      const rest = params.toString();
      history.replaceState(null, "", location.pathname + (rest ? "?" + rest : "") + location.hash);
    };

    search.addEventListener("input", () => { applyFilters(); updateBulkBar(); syncUrl(); });
    search.addEventListener("keydown", (event) => {
      if (event.key === "Escape" && search.value !== "") {
        search.value = "";
        applyFilters();
        updateBulkBar();
        syncUrl();
        event.preventDefault();
      }
    });
    filterButtons.forEach((btn) => {
      btn.addEventListener("click", () => {
        filterButtons.forEach((b) => { b.setAttribute("aria-pressed", String(b === btn)); });
        currentFilter = btn.dataset.filter;
        applyFilters();
        updateBulkBar();
      });
    });
    tagButtons.forEach((btn) => {
      btn.addEventListener("click", () => {
        const tag = btn.dataset.tag || "";
        currentTag = currentTag === tag ? "" : tag;
        tagButtons.forEach((b) => { b.setAttribute("aria-pressed", String(currentTag === b.dataset.tag)); });
        applyFilters();
        updateBulkBar();
      });
    });
    // The clear button rides the no-results panel, so an instance with no
    // posts at all never sees it.
    if (clearBtn) clearBtn.addEventListener("click", () => {
      search.value = "";
      currentFilter = "all";
      currentTag = "";
      filterButtons.forEach((b) => { b.setAttribute("aria-pressed", String(b.dataset.filter === "all")); });
      tagButtons.forEach((b) => { b.setAttribute("aria-pressed", "false"); });
      applyFilters();
      updateBulkBar();
      search.focus();
      syncUrl();
    });
    checkboxes.forEach((cb) => cb.addEventListener("change", updateBulkBar));
    bulkAll.addEventListener("change", () => {
      cards.forEach((card) => {
        if (card.classList.contains("is-hidden")) return;
        const cb = card.querySelector(".bulk-one");
        if (cb) cb.checked = bulkAll.checked;
      });
      updateBulkBar();
    });
    bulkCancel.addEventListener("click", () => {
      checkboxes.forEach((cb) => { cb.checked = false; });
      updateBulkBar();
    });

    // --- Language variants ----------------------------------------------------
    /* A publication with language versions shows one card; the chips move
       it to another version: the name, the summary, the state, the date
       and the links of the card all follow the picked language file. */
    for (const card of document.querySelectorAll(".post[data-variants]")) {
      let variants;
      try { variants = JSON.parse(card.dataset.variants); } catch (error) { continue; }
      if (!Array.isArray(variants) || variants.length < 2) continue;
      const byLang = Object.groupBy(variants, (v) => v.lang);
      card.querySelectorAll("[data-lang]").forEach((btn) => {
        btn.addEventListener("click", () => {
          const v = byLang[btn.dataset.lang]?.[0];
          if (!v) return;
          card.querySelectorAll("[data-lang]").forEach((b) => {
            b.setAttribute("aria-pressed", String(b === btn));
          });
          card.querySelector(".post__title").textContent = v.title;
          card.dataset.title = (v.title || "").toLowerCase();
          const excerpt = card.querySelector(".post__excerpt");
          excerpt.textContent = v.excerpt || "";
          excerpt.hidden = !v.excerpt;
          card.dataset.excerpt = (v.excerpt || "").toLowerCase();
          const dateEl = card.querySelector(".post__date");
          if (dateEl) {
            dateEl.textContent = v.date;
            dateEl.title = v.date;
            dateEl.dataset.date = v.date;
          }
          card.dataset.timestamp = v.timestamp || "";
          card.dataset.status = v.status;
          card.dataset.slug = v.slug;
          card.querySelector(".badge-draft").hidden = !v.draft;
          card.querySelector(".badge-scheduled").hidden = !v.scheduled;
          const series = card.querySelector(".badge-series");
          series.hidden = !v.series;
          series.textContent = v.series
            ? v.series + (v.hasOrder ? " · " + v.seriesOrder : "") : "";
          card.querySelector(".post__link").href =
            "/admin/posts/" + encodeURIComponent(v.slug) + "/edit";
          card.querySelector(".post__foot form").action =
            "/admin/posts/" + encodeURIComponent(v.slug) + "/delete";
          const cover = card.querySelector(".post__cover");
          if (v.cover) {
            cover.dataset.cover = v.cover;
            cover.style.setProperty("--cover-url", "url('" + v.cover + "')");
          } else {
            delete cover.dataset.cover;
            cover.style.removeProperty("--cover-url");
          }
          applyFilters();
          updateBulkBar();
        });
      });
    }

    // Pick up an initial ?q=… so a deep link or reload filters at once.
    {
      const urlQ = new URLSearchParams(location.search).get("q");
      if (urlQ && search.value === "") search.value = urlQ;
    }
    applyFilters();
    updateBulkBar();

    // --- Relative time ----------------------------------------------------
    const rtf = Intl.RelativeTimeFormat
      ? new Intl.RelativeTimeFormat(document.documentElement.lang || undefined, { numeric: "auto" })
      : null;
    const UNITS = [
      ["year", 31536000000], ["month", 2592000000], ["week", 604800000],
      ["day", 86400000], ["hour", 3600000], ["minute", 60000], ["second", 1000],
    ];
    function applyRelativeTimes() {
      if (!rtf) return;
      const now = Date.now();
      cards.forEach((card) => {
        const ms = Number.parseInt(card.dataset.timestamp || "", 10);
        if (Number.isNaN(ms)) return;
        const diff = ms - now;
        const abs = Math.abs(diff);
        let unit = "second";
        let value = Math.round(diff / 1000);
        for (const [name, span] of UNITS) {
          if (abs >= span) {
            unit = name;
            value = Math.round(diff / span);
            break;
          }
        }
        const dateEl = card.querySelector(".post__date");
        if (dateEl) dateEl.textContent = rtf.format(value, unit);
      });
    }
    applyRelativeTimes();
    document.addEventListener("visibilitychange", () => {
      if (!document.hidden) applyRelativeTimes();
    });

    // --- Save toast ---------------------------------------------------------
    const SAVED_MESSAGES = {
      created: window.__("post.created"),
      updated: window.__("post.updated"),
      deleted: window.__("post.deleted"),
      duplicated: window.__("post.duplicated"),
      undone: window.__("post.undone"),
      undelete_failed: window.__("post.undelete_failed"),
      duplicate_failed: window.__("post.duplicate_failed"),
    };
    (() => {
      const params = new URLSearchParams(location.search);
      const saved = params.get("saved");
      if (!saved || !SAVED_MESSAGES[saved]) return;
      const drop = () => {
        params.delete("saved");
        params.delete("undo");
        const rest = params.toString();
        history.replaceState(null, "", location.pathname + (rest ? "?" + rest : "") + location.hash);
      };
      const undoSlug = params.get("undo");
      if (saved === "deleted" && undoSlug) {
        const csrf = document.querySelector("input[name='_csrf']")?.value || "";
        let consumed = false;
        window.__volumen.toast(SAVED_MESSAGES.deleted, {
          kind: "ok",
          ttl: 10000,
          action: {
            label: window.__("undo"),
            onClick: async () => {
              if (consumed) return;
              consumed = true;
              drop();
              try {
                const response = await fetch("/admin/posts/" + encodeURIComponent(undoSlug) + "/undelete", {
                  method: "POST",
                  headers: { "Content-Type": "application/x-www-form-urlencoded" },
                  body: new URLSearchParams({ _csrf: csrf }).toString(),
                  credentials: "same-origin",
                });
                if (response.ok || response.redirected) window.location.reload();
                else window.__volumen.toast(window.__("undo.failed"), { kind: "error" });
              } catch (error) {
                window.__volumen.toast(window.__("undo.failed"), { kind: "error" });
              }
            },
          },
        });
      } else {
        // A failure reports as an error whatever its wording; the rest are
        // confirmations.
        const kind = saved.endsWith("_failed") ? "error" : "ok";
        window.__volumen.toast(SAVED_MESSAGES[saved], { kind });
        drop();
      }
    })();
  })();
</script>
{{end}}