{% extends "layout.html" %}
{% block body %}
<div class="page-head">
  <div>
    <h1>Projekte</h1>
    <p class="tiny">Arbeitsmappen mit Ordner unter dem Slice-Pfad — G-code und Konstruktionsdaten.</p>
  </div>
  <div class="actions">
    <div class="seg" id="proj-filter" role="group" aria-label="Filter">
      <button type="button" class="on" data-filter="aktiv">Aktiv</button>
      <button type="button" data-filter="fertig">Fertig</button>
      <button type="button" data-filter="">Alle</button>
    </div>
    <button type="button" class="btn-primary" id="proj-new"><svg class="ico"><use href="#i-plus"/></svg>Neues Projekt</button>
  </div>
</div>

<div class="split edit-split is-idle" id="proj-layout">
  <section class="card">
    <div class="card-head lib-head">
      <svg class="ico head-ico"><use href="#i-folder"/></svg>
      <h2>Liste</h2>
      <span class="count-pill" id="proj-count">0</span>
    </div>
    <div class="table-wrap">
      <table>
        <thead><tr><th>Name</th><th>Status</th><th>Ordner</th><th class="num">Dateien</th><th class="num">Kosten</th></tr></thead>
        <tbody id="proj-rows"></tbody>
      </table>
      <div class="pager" id="proj-pager" hidden></div>
    </div>
  </section>

  <section class="card edit-panel" id="proj-panel" hidden>
    <div class="mat-form-head">
      <h2 id="proj-title">Neues Projekt</h2>
      <button type="button" class="ghost tiny-btn" id="proj-edit-btn" hidden>Bearbeiten</button>
      <button type="button" class="icon-btn" id="proj-close" title="Schließen" aria-label="Schließen"></button>
    </div>

    <form id="proj-form" novalidate hidden>
      <input id="proj-id" type="hidden">
      <div class="field"><label for="proj-name">Name</label><input id="proj-name" required autocomplete="off"></div>
      <div class="grid-2">
        <div class="field">
          <label for="proj-status">Status</label>
          <select id="proj-status">
            <option value="idee">Idee</option>
            <option value="bereit">Bereit</option>
            <option value="druckt">Druckt</option>
            <option value="fertig">Fertig</option>
          </select>
        </div>
        <div class="field">
          <label for="proj-folder">Ordner <span class="tip" title="Relativ unter dem Slice-Ordner, z. B. Projekte/2609_002 — kein D:\…"><svg class="ico"><use href="#i-info"/></svg></span></label>
          <input id="proj-folder" placeholder="Projekte/…" autocomplete="off">
          <p class="field-help">Leer = automatisch <code>Projekte/&lt;Name&gt;</code>. Nur Relativpfad, kein Laufwerk.</p>
        </div>
      </div>
      <div class="field"><label for="proj-notes">Notiz</label><textarea id="proj-notes" rows="3"></textarea></div>
      <div class="actions">
        <button type="submit" class="btn-primary" id="proj-save">Speichern</button>
        <button type="button" class="ghost" id="proj-cancel-edit" hidden>Abbrechen</button>
        <button type="button" class="warn" id="proj-delete" hidden><svg class="ico"><use href="#i-trash"/></svg>Löschen</button>
      </div>
    </form>
    <p id="proj-note" class="tiny"></p>

    <div id="proj-detail" hidden>
      <div class="actions" style="margin-bottom:0.5rem">
        <a class="ghost" id="proj-files-link" href="/dateien" hidden>Dateien</a>
      </div>
      <div id="proj-stats" class="proj-stats"></div>
      <p id="proj-suggest" class="tiny" hidden></p>
      <p id="proj-meta" class="tiny"></p>

      <div class="seg" id="proj-tabs" role="tablist" style="margin:0.75rem 0">
        <button type="button" class="on" data-tab="files">Druckdateien</button>
        <button type="button" data-tab="runs">Läufe</button>
        <button type="button" data-tab="assets">Weitere Dateien</button>
      </div>

      <div id="proj-tab-files">
        <div class="actions" style="margin-bottom:0.5rem">
          <button type="button" class="btn-primary" id="proj-enqueue-all" hidden>Alle einreihen</button>
        </div>
        <div id="proj-gcodes" class="proj-file-list"></div>
      </div>

      <div id="proj-tab-runs" hidden>
        <div id="proj-runs" class="proj-file-list"></div>
        <div class="pager" id="proj-runs-pager" hidden></div>
      </div>

      <div id="proj-tab-assets" hidden>
        <p class="tiny">STEP, STL, PDF, SolidWorks usw. im Projektordner — nicht in der Druck-Bibliothek.</p>
        <div class="actions" style="margin-bottom:0.5rem">
          <label class="button ghost" for="proj-asset-file"><svg class="ico"><use href="#i-upload"/></svg>Hochladen</label>
          <input id="proj-asset-file" type="file" multiple hidden>
        </div>
        <div id="proj-assets" class="proj-file-list"></div>
      </div>
    </div>
  </section>
</div>
{% endblock %}

{% block script %}
<script>
const STATUS_LABEL = { idee: "Idee", bereit: "Bereit", druckt: "Druckt", fertig: "Fertig" };
let projects = [];
let selectedId = null;
let listFilter = "aktiv";
let detailTab = "files";
let runsPage = 0;
let runsTotal = 0;
const RUNS_PAGE = 20;
/** idle | create | view | edit */
let panelMode = "idle";
let folderTouched = false;
let projPage = 1;

document.getElementById("proj-close").innerHTML = icon("x");

function openPanel() {
  document.getElementById("proj-panel").hidden = false;
  document.getElementById("proj-layout").classList.remove("is-idle");
  document.getElementById("proj-panel").scrollIntoView({ block: "nearest", behavior: "smooth" });
}

function closePanel() {
  panelMode = "idle";
  selectedId = null;
  document.getElementById("proj-panel").hidden = true;
  document.getElementById("proj-layout").classList.add("is-idle");
  document.getElementById("proj-form").hidden = true;
  document.getElementById("proj-detail").hidden = true;
  document.getElementById("proj-edit-btn").hidden = true;
  document.getElementById("proj-cancel-edit").hidden = true;
  document.getElementById("proj-delete").hidden = true;
  document.getElementById("proj-files-link").hidden = true;
  document.getElementById("proj-note").textContent = "";
  document.getElementById("proj-enqueue-all").hidden = true;
  history.replaceState(null, "", location.pathname);
  renderList();
}

function setFormValues(project) {
  document.getElementById("proj-id").value = project ? project.id : "";
  document.getElementById("proj-name").value = project ? (project.name || "") : "";
  document.getElementById("proj-status").value = project ? (project.status || "idee") : "idee";
  document.getElementById("proj-folder").value = project ? (project.folder || "") : "";
  document.getElementById("proj-notes").value = project ? (project.notes || "") : "";
}

function showCreate() {
  panelMode = "create";
  selectedId = null;
  folderTouched = false;
  setFormValues(null);
  document.getElementById("proj-title").textContent = "Neues Projekt";
  document.getElementById("proj-form").hidden = false;
  document.getElementById("proj-detail").hidden = true;
  document.getElementById("proj-edit-btn").hidden = true;
  document.getElementById("proj-cancel-edit").hidden = true;
  document.getElementById("proj-delete").hidden = true;
  document.getElementById("proj-files-link").hidden = true;
  document.getElementById("proj-note").textContent = "";
  document.getElementById("proj-enqueue-all").hidden = true;
  openPanel();
  renderList();
  document.getElementById("proj-name").focus();
}

function showView(project) {
  panelMode = "view";
  selectedId = project.id;
  setFormValues(project);
  document.getElementById("proj-title").textContent = project.name || "Projekt";
  document.getElementById("proj-form").hidden = true;
  document.getElementById("proj-detail").hidden = false;
  document.getElementById("proj-edit-btn").hidden = false;
  document.getElementById("proj-cancel-edit").hidden = true;
  document.getElementById("proj-delete").hidden = true;
  const link = document.getElementById("proj-files-link");
  link.hidden = false;
  link.href = "/dateien?project=" + encodeURIComponent(project.id);
  document.getElementById("proj-note").textContent = "";
  openPanel();
  renderList();
  renderDetail(project);
}

function showEdit(project) {
  panelMode = "edit";
  selectedId = project.id;
  folderTouched = true;
  setFormValues(project);
  document.getElementById("proj-title").textContent = "Bearbeiten";
  document.getElementById("proj-form").hidden = false;
  document.getElementById("proj-detail").hidden = true;
  document.getElementById("proj-edit-btn").hidden = true;
  document.getElementById("proj-cancel-edit").hidden = false;
  document.getElementById("proj-delete").hidden = false;
  document.getElementById("proj-files-link").hidden = true;
  openPanel();
  renderList();
  document.getElementById("proj-name").focus();
}

function renderList() {
  const body = document.getElementById("proj-rows");
  const pager = document.getElementById("proj-pager");
  document.getElementById("proj-count").textContent = String(projects.length);
  if (!projects.length) {
    body.innerHTML = '<tr><td class="empty" colspan="5"><div class="empty-state">' + icon("folder")
      + "<p>Noch kein Projekt.</p>"
      + '<p><button type="button" class="btn-primary" id="proj-empty-new">Erstes Projekt anlegen</button></p>'
      + "</div></td></tr>";
    document.getElementById("proj-empty-new")?.addEventListener("click", showCreate);
    renderPager(pager, null, () => {});
    return;
  }
  body.innerHTML = "";
  const paged = pageSlice(projects, projPage, DEFAULT_PAGE_SIZE);
  projPage = paged.page;
  paged.items.forEach((project) => {
    const tr = document.createElement("tr");
    tr.className = "pick" + (String(project.id) === String(selectedId) ? " on" : "");
    tr.innerHTML = "<td></td><td></td><td class=\"cell-path\"></td><td class=\"num\"></td><td class=\"num\"></td>";
    tr.children[0].textContent = project.name;
    let status = STATUS_LABEL[project.status] || project.status || "";
    if ((project.stats || {}).active_count > 0) status = STATUS_LABEL.druckt;
    tr.children[1].textContent = status;
    tr.children[2].textContent = project.folder || "—";
    tr.children[2].title = project.folder || "";
    tr.children[3].textContent = String(project.file_count ?? (project.files || []).length);
    const cost = (project.stats || {}).cost;
    tr.children[4].textContent = cost ? euro(cost) : "—";
    tr.addEventListener("click", () => openProject(project.id));
    body.appendChild(tr);
  });
  renderPager(pager, paged, (p) => {
    projPage = p;
    renderList();
  });
}

function setTab(tab) {
  detailTab = tab;
  document.querySelectorAll("#proj-tabs [data-tab]").forEach((btn) => {
    btn.classList.toggle("on", btn.dataset.tab === tab);
  });
  document.getElementById("proj-tab-files").hidden = tab !== "files";
  document.getElementById("proj-tab-runs").hidden = tab !== "runs";
  document.getElementById("proj-tab-assets").hidden = tab !== "assets";
  if (tab === "runs" && selectedId) loadRuns(selectedId, 0);
  if (tab === "assets" && selectedId) loadAssets(selectedId);
}

function renderDetail(project) {
  const stats = project.stats || {};
  const statsEl = document.getElementById("proj-stats");
  const chips = [
    [stats.run_count || 0, "Läufe"],
    [hours(stats.duration_s) || "0 min", "Zeit"],
    [grams(stats.weight_g || 0), "Filament"],
    [euro(stats.cost || 0), "Kosten"],
  ];
  if (stats.files_total) {
    chips.push([stats.files_ok + "/" + stats.files_total, "Dateien ok"]);
  }
  statsEl.innerHTML = chips.map(([v, l]) =>
    `<div class="proj-stat"><strong>${escapeHtml(String(v))}</strong><span class="tiny">${escapeHtml(l)}</span></div>`
  ).join("");

  const meta = [];
  if (project.folder) meta.push(project.folder);
  if (project.created_at) meta.push("Angelegt " + formatDateTime(project.created_at));
  if (stats.last_run) {
    meta.push("Zuletzt " + formatDateTime(stats.last_run.started_at) + " · " + (stats.last_run.filename || ""));
  }
  document.getElementById("proj-meta").textContent = meta.join(" · ");

  const suggest = document.getElementById("proj-suggest");
  if (stats.suggest_fertig) {
    suggest.hidden = false;
    suggest.innerHTML = 'Alle Dateien mindestens einmal ok gedruckt. <button type="button" class="ghost" id="proj-mark-fertig">Als fertig markieren?</button>';
    document.getElementById("proj-mark-fertig")?.addEventListener("click", async () => {
      try {
        await api("/projekte/" + project.id, { method: "PATCH", json: { status: "fertig" } });
        toast("Projekt als fertig markiert.", "good");
        await load();
        await openProject(project.id);
      } catch (error) {
        showNote("proj-note", error);
      }
    });
  } else {
    suggest.hidden = true;
    suggest.textContent = "";
  }

  const files = project.files || [];
  document.getElementById("proj-enqueue-all").hidden = !files.length;
  const gcodes = document.getElementById("proj-gcodes");
  if (!files.length) {
    gcodes.innerHTML = '<p class="tiny">Keine G-code/3MF-Dateien verknüpft. Dateien in den Projektordner legen oder unter Dateien verschieben.</p>';
  } else {
    gcodes.innerHTML = files.map((file) => {
      const mats = (file.filaments || []).map((f) => f.type || f.material_type || f.name || "").filter(Boolean);
      const mat = [...new Set(mats)].join(" / ");
      const metaBits = [
        mat,
        file.weight_g ? Math.round(file.weight_g) + " g" : "",
        file.printed ? file.printed + "× gedruckt" : "noch nie",
        file.queued ? file.queued + " in Queue" : "",
        file.ok_once ? "ok" : "",
      ].filter(Boolean).join(" · ");
      const href = "/dateien?file=" + encodeURIComponent(file.id) + "&project=" + encodeURIComponent(project.id);
      return `<div class="proj-file-row">
        <a class="proj-file" href="${escapeHtml(href)}">${escapeHtml(file.name)}<span class="tiny">${escapeHtml(metaBits)}</span></a>
        <button type="button" class="ghost" data-enqueue="${file.id}">Einreihen</button>
      </div>`;
    }).join("");
  }
  setTab(detailTab);
  if (detailTab === "assets") loadAssets(project.id);
  if (detailTab === "runs") loadRuns(project.id, runsPage);
}

async function loadRuns(projectId, offset) {
  const box = document.getElementById("proj-runs");
  const pager = document.getElementById("proj-runs-pager");
  runsPage = Math.max(0, offset || 0);
  try {
    const resp = await fetch(withToken("/api/v1/projekte/" + projectId + "/laeufe?limit=" + RUNS_PAGE + "&offset=" + runsPage), {
      credentials: "same-origin",
      headers: { Accept: "application/json" },
    });
    if (!resp.ok) throw new Error("Läufe laden fehlgeschlagen.");
    const rows = await resp.json();
    runsTotal = Number(resp.headers.get("X-Total-Count") || rows.length);
    if (!rows.length) {
      box.innerHTML = '<p class="tiny">Noch keine Läufe.</p>';
      pager.hidden = true;
      return;
    }
    box.innerHTML = rows.map((run) => {
      const state = (window.RUN_STATES && RUN_STATES[run.state]) || run.state || "";
      const cost = Number(run.filament_cost || 0) + Number(run.energy_cost || 0);
      const meta = [state, hours(run.duration_s), cost ? euro(cost) : "", formatDateTime(run.started_at)].filter(Boolean).join(" · ");
      return `<a class="proj-file" href="/protokoll/${run.id}">${escapeHtml(run.filename || "Lauf #" + run.id)}<span class="tiny">${escapeHtml(meta)}</span></a>`;
    }).join("");
    const pages = Math.max(1, Math.ceil(runsTotal / RUNS_PAGE));
    const page = Math.floor(runsPage / RUNS_PAGE) + 1;
    renderPager(pager, {
      items: rows, page, pages, total: runsTotal, pageSize: RUNS_PAGE,
      from: runsTotal ? runsPage + 1 : 0,
      to: Math.min(runsPage + rows.length, runsTotal),
    }, (p) => loadRuns(projectId, (p - 1) * RUNS_PAGE));
  } catch (error) {
    box.innerHTML = '<p class="tiny">' + escapeHtml(error.message || String(error)) + "</p>";
  }
}

async function loadAssets(projectId) {
  const box = document.getElementById("proj-assets");
  try {
    const rows = await api("/projekte/" + projectId + "/assets");
    if (!rows.length) {
      box.innerHTML = '<p class="tiny">Noch keine weiteren Dateien.</p>';
      return;
    }
    box.innerHTML = rows.map((item) => {
      const href = withToken("/api/v1/projekte/" + projectId + "/assets/" + encodeURIComponent(item.rel).replace(/%2F/g, "/"));
      return `<div class="proj-asset">
        <a href="${escapeHtml(href)}" download>${escapeHtml(item.rel)}</a>
        <span class="tiny">${escapeHtml(sizeText(item.size_bytes))}</span>
        <button type="button" class="icon-btn" data-asset-del="${escapeHtml(item.rel)}" title="Löschen">${icon("trash")}</button>
      </div>`;
    }).join("");
  } catch (error) {
    box.innerHTML = '<p class="tiny">' + escapeHtml(error.message || String(error)) + "</p>";
  }
}

function sizeText(bytes) {
  const n = Number(bytes) || 0;
  if (n < 1024) return n + " B";
  if (n < 1024 * 1024) return (n / 1024).toFixed(1).replace(".", ",") + " KB";
  return (n / (1024 * 1024)).toFixed(1).replace(".", ",") + " MB";
}

async function enqueueFiles(projectId, fileIds) {
  const payload = { confirm: true };
  if (fileIds && fileIds.length) payload.file_ids = fileIds;
  const out = await api("/projekte/" + projectId + "/einreihen", { method: "POST", json: payload });
  toast((out.count || 0) + " in die Warteschlange.", "good");
  await openProject(projectId);
}

async function openProject(id) {
  try {
    const row = await api("/projekte/" + id);
    showView(row);
    history.replaceState(null, "", "#" + id);
  } catch (error) {
    showNote("proj-note", error);
  }
}

async function load() {
  const q = listFilter ? ("?status=" + encodeURIComponent(listFilter)) : "";
  projects = await api("/projekte" + q);
  renderList();
  if (selectedId && (panelMode === "view" || panelMode === "edit")) {
    const still = projects.find((p) => String(p.id) === String(selectedId));
    if (still) {
      if (panelMode === "edit") {
        const row = await api("/projekte/" + selectedId);
        showEdit(row);
      } else {
        await openProject(selectedId);
      }
    } else {
      closePanel();
    }
  }
}

document.getElementById("proj-filter").addEventListener("click", (event) => {
  const btn = event.target.closest("[data-filter]");
  if (!btn) return;
  listFilter = btn.dataset.filter || "";
  document.querySelectorAll("#proj-filter [data-filter]").forEach((b) => b.classList.toggle("on", b === btn));
  projPage = 1;
  load().catch((error) => showNote("proj-note", error));
});

document.getElementById("proj-tabs").addEventListener("click", (event) => {
  const btn = event.target.closest("[data-tab]");
  if (!btn) return;
  setTab(btn.dataset.tab);
});

document.getElementById("proj-new").addEventListener("click", () => {
  history.replaceState(null, "", location.pathname);
  showCreate();
});
document.getElementById("proj-close").addEventListener("click", closePanel);
document.getElementById("proj-edit-btn").addEventListener("click", async () => {
  if (!selectedId) return;
  try {
    const row = await api("/projekte/" + selectedId);
    showEdit(row);
  } catch (error) {
    showNote("proj-note", error);
  }
});
document.getElementById("proj-cancel-edit").addEventListener("click", async () => {
  if (!selectedId) {
    closePanel();
    return;
  }
  await openProject(selectedId);
});

document.getElementById("proj-folder").addEventListener("input", () => {
  folderTouched = true;
});
document.getElementById("proj-name").addEventListener("input", () => {
  if (folderTouched || document.getElementById("proj-id").value) return;
  const name = document.getElementById("proj-name").value.trim();
  const folderEl = document.getElementById("proj-folder");
  if (!name) {
    folderEl.value = "";
    return;
  }
  const slug = name
    .replace(/[^\w\- äöüÄÖÜß.]+/gi, "-")
    .replace(/\s+/g, "-")
    .replace(/-{2,}/g, "-")
    .replace(/^[-.]+|[-.]+$/g, "")
    .slice(0, 60) || "projekt";
  folderEl.value = "Projekte/" + slug;
});

document.getElementById("proj-form").addEventListener("submit", async (event) => {
  event.preventDefault();
  const id = document.getElementById("proj-id").value;
  const name = document.getElementById("proj-name").value.trim();
  if (!name) {
    toast("Name fehlt.", "bad");
    document.getElementById("proj-name").focus();
    return;
  }
  const folderRaw = document.getElementById("proj-folder").value.trim();
  if (/^[a-zA-Z]:[\\/]/.test(folderRaw) || folderRaw.startsWith("\\\\") || folderRaw.includes(":")) {
    toast("Ordner nur relativ unter dem Slice-Pfad — z. B. Projekte/2609_002, kein D:\\…", "bad");
    document.getElementById("proj-folder").focus();
    return;
  }
  const payload = {
    name,
    status: document.getElementById("proj-status").value,
    notes: document.getElementById("proj-notes").value,
    folder: folderRaw,
  };
  const saveBtn = document.getElementById("proj-save");
  saveBtn.disabled = true;
  try {
    const saved = id
      ? await api("/projekte/" + id, { method: "PATCH", json: payload })
      : await api("/projekte", { method: "POST", json: payload });
    toast(id ? "Projekt gespeichert." : "Projekt angelegt.", "good");
    folderTouched = true;
    await load();
    await openProject(saved.id);
  } catch (error) {
    showNote("proj-note", error);
  } finally {
    saveBtn.disabled = false;
  }
});

document.getElementById("proj-delete").addEventListener("click", () => {
  const id = document.getElementById("proj-id").value;
  if (!id) return;
  armButton(document.getElementById("proj-delete"), "Ordner inkl. Inhalt?", async () => {
    try {
      await api("/projekte/" + id + "?force=1", { method: "DELETE" });
      toast("Projekt gelöscht.");
      closePanel();
      await load();
    } catch (error) {
      showNote("proj-note", error);
    }
  });
});

document.getElementById("proj-enqueue-all").addEventListener("click", () => {
  const id = selectedId;
  if (!id) return;
  armButton(document.getElementById("proj-enqueue-all"), "Alle einreihen?", async () => {
    try {
      await enqueueFiles(id, null);
    } catch (error) {
      showNote("proj-note", error);
    }
  });
});

document.getElementById("proj-gcodes").addEventListener("click", (event) => {
  const btn = event.target.closest("[data-enqueue]");
  if (!btn) return;
  event.preventDefault();
  const id = selectedId;
  const fileId = Number(btn.dataset.enqueue);
  if (!id || !fileId) return;
  armButton(btn, "einreihen?", async () => {
    try {
      await enqueueFiles(id, [fileId]);
    } catch (error) {
      showNote("proj-note", error);
    }
  });
});

document.getElementById("proj-asset-file").addEventListener("change", async (event) => {
  const id = selectedId;
  const files = [...(event.target.files || [])];
  event.target.value = "";
  if (!id || !files.length) return;
  try {
    for (const file of files) {
      const body = new FormData();
      body.append("file", file);
      await api("/projekte/" + id + "/assets", { method: "POST", body });
    }
    toast(files.length === 1 ? "Datei hochgeladen." : files.length + " Dateien hochgeladen.");
    await loadAssets(id);
  } catch (error) {
    showNote("proj-note", error);
  }
});

document.getElementById("proj-assets").addEventListener("click", (event) => {
  const btn = event.target.closest("[data-asset-del]");
  if (!btn) return;
  const id = selectedId;
  const rel = btn.dataset.assetDel;
  if (!id || !rel) return;
  armButton(btn, "löschen?", async () => {
    await api("/projekte/" + id + "/assets/" + encodeURIComponent(rel).replace(/%2F/g, "/"), { method: "DELETE" });
    toast("Datei gelöscht.");
    await loadAssets(id);
  });
});

(async () => {
  try {
    await load();
    const hash = (location.hash || "").replace(/^#/, "");
    if (hash && /^\d+$/.test(hash)) await openProject(Number(hash));
  } catch (error) {
    showNote("proj-note", error);
  }
})();
</script>
{% endblock %}