// public/js/admin/db.js
// ===============================
//  JWT PARSER
// ===============================
function parseJwt(t) {
  try {
    return JSON.parse(atob(t.split('.')[1]));
  } catch {
    return {};
  }
}

// ===============================
//  COMPATTA OUTPUT ATTIVITÀ ADMIN
//  track_preview viene mostrato solo come numero punti
// ===============================
function compactActivitiesForOutput(data) {
  if (!Array.isArray(data)) return data;

  return data.map(a => {
    const previewLen = Array.isArray(a.track_preview)
      ? a.track_preview.length
      : 0;

    return {
      ...a,
      track_preview: previewLen
    };
  });
}

// ===============================
//  LETTURA DB FOTO — utente corrente
// ===============================
async function readDBUser() {
  const photos = await apiGet(`/photos`);
  out(photos);
}

// ===============================
//  LETTURA DB FOTO — Admin
// ===============================
async function readDB() {
  Admin.db = await apiGet(`/photos?user=Admin`);
  out(Admin.db);
}

// ===============================
//  RESET COMPLETO DB FOTO
// ===============================
async function resetDB() {
  if (!confirm("Vuoi davvero resettare il DB foto?")) {
    return;
  }

  await apiPost(`/photos/initDB`);

  localStorage.removeItem("photosCache");
  localStorage.removeItem("lastSyncPhotos");

  await readDB();
}

// ===============================
//  RESET DB FOTO PER UTENTE
// ===============================
async function resetDBuser() {
  const payload = parseJwt(Admin.token);
  let userToReset = payload.name;

  if (payload.name === "Admin") {
    const sel = document.getElementById("userSelect");

    if (!sel || !sel.value) {
      alert("Seleziona un utente");
      return;
    }

    userToReset = sel.value;
  }

  if (!confirm(`Vuoi davvero resettare l'utente "${userToReset}"?`)) {
    return;
  }

  let path = `/photos/initDBuser`;

  if (payload.name === "Admin") {
    path += `?user=${encodeURIComponent(userToReset)}`;
  }

  await apiPost(path);

  localStorage.removeItem("photosCache");
  localStorage.removeItem("lastSyncPhotos");

  await readDB();

  const outData = await apiGet(`/photos?user=${encodeURIComponent(userToReset)}`);
  out(outData);
}

// ===============================
//  CANCELLA FOTO PER ID — HARD DELETE
// ===============================
async function deletePhoto() {
  const id = prompt("ID foto da cancellare definitivamente:");
  if (!id) return;

  if (!confirm(`Vuoi davvero cancellare definitivamente la foto "${id}"?`)) {
    return;
  }

  const data = await apiDelete(`/photos/${id}`);
  out(data);

  try {
    if (window.AdminCacheSync?.removePhotoFromCache) {
      const result = AdminCacheSync.removePhotoFromCache(id);
      console.log("[admin delete foto] photosCache aggiornata:", result);
    } else {
      localStorage.setItem("photosNeedsSync", "1");
      console.warn("[admin delete foto] AdminCacheSync non disponibile, imposto photosNeedsSync");
    }
  } catch (err) {
    localStorage.setItem("photosNeedsSync", "1");
    console.warn("[admin delete foto] aggiornamento cache fallito:", err.message);
  }

  //await readDBUser();
}

// ===============================
//  TOGGLE SOFT DELETE FOTO PER ID
// ===============================
async function toggleSoftDelete() {
  const id = prompt("ID foto da togglare soft delete:");
  if (!id) return;

  const data = await apiPost(`/photos/${id}/toggle-soft`);
  out(data);

  try {
    if (window.AdminCacheSync?.progressiveSyncPhotosCacheFromAdmin) {
      const result = await AdminCacheSync.progressiveSyncPhotosCacheFromAdmin();
      console.log("[admin toggle soft foto] photosCache aggiornata:", result);
    } else {
      localStorage.setItem("photosNeedsSync", "1");
      console.warn("[admin toggle soft foto] AdminCacheSync non disponibile, imposto photosNeedsSync");
    }
  } catch (err) {
    localStorage.setItem("photosNeedsSync", "1");
    console.warn("[admin toggle soft foto] sync cache fallita:", err.message);
  }

  // await readDBUser();
}

// ===============================
//  CERCA ID IN index.json — foto
// ===============================
async function findIdIndex() {
  const id = prompt("ID da cercare:");
  if (!id) return;

  const data = await apiGet(`/findIdIndex/${id}`);
  out(data);
}

// ===============================
//  CERCA FOTO PER ID
// ===============================
async function searchPhotoById() {
  const id = prompt("ID foto:");
  if (!id) return;

  const user = parseJwt(Admin.token).name;

  const data = await apiGet(`/photos/byIds?id=${id}&user=${user}`);
  out(data);
}

// ===============================
//  MOSTRA CAMBIAMENTI FOTO
// ===============================
async function showChanges() {
  const since = document.getElementById("sinceInput").value;
  if (!since) return alert("Seleziona una data");

  const iso = new Date(since).toISOString();
  const user = parseJwt(Admin.token).name;

  const data = await apiGet(`/photos/changes?since=${iso}&user=${user}`);
  out(data);
}

// ======================================================
//  SEZIONE ATTIVITÀ
// ======================================================

// ===============================
//  LETTURA DB ATTIVITÀ — utente corrente
// ===============================
async function readActivitiesDBUser() {
  const activities = await apiGet(`/activities`);
  outActivities(compactActivitiesForOutput(activities));
}

// ===============================
//  LETTURA DB ATTIVITÀ — Admin
// ===============================
async function readActivitiesDB() {
  Admin.dbActivities = await apiGet(`/activities?user=Admin`);
  outActivities(compactActivitiesForOutput(Admin.dbActivities));
}

// ===============================
//  RESET COMPLETO DB ATTIVITÀ
// ===============================
async function resetActivitiesDB() {
  if (!confirm("Vuoi davvero resettare il DB attività?")) {
    return;
  }

  await apiPost(`/activities/initDB`);

  localStorage.removeItem("activitiesCache");
  localStorage.removeItem("lastSyncActivities");

  await readActivitiesDBUser();
}

// ===============================
//  RESET DB ATTIVITÀ PER UTENTE
// ===============================
async function resetActivitiesDBuser() {
  const payload = parseJwt(Admin.token);
  let userToReset = payload.name;

  if (payload.name === "Admin") {
    const sel = document.getElementById("userSelectActivities");

    if (!sel || !sel.value) {
      alert("Seleziona un utente");
      return;
    }

    userToReset = sel.value;
  }

  if (!confirm(`Vuoi davvero resettare le attività dell'utente "${userToReset}"?`)) {
    return;
  }

  if (payload.name === "Admin") {
    await apiPost(`/activities/initDBuser?user=${encodeURIComponent(userToReset)}`);
  } else {
    await apiPost(`/activities/initDB`);
  }

  localStorage.removeItem("activitiesCache");
  localStorage.removeItem("lastSyncActivities");

  const outData = await apiGet(`/activities`);
  outActivities(compactActivitiesForOutput(outData));
}

// ===============================
//  CANCELLA ATTIVITÀ PER ID — HARD DELETE
// ===============================
async function deleteActivity() {
  const id = prompt("ID attività da cancellare definitivamente:");
  if (!id) return;

  if (!confirm(`Vuoi davvero cancellare definitivamente l'attività "${id}"?`)) {
    return;
  }

  const data = await apiDelete(`/activities/${id}`);
  outActivities(compactActivitiesForOutput(Array.isArray(data) ? data : [data]));

  try {
    if (window.AdminCacheSync?.removeActivityFromCache) {
      const result = AdminCacheSync.removeActivityFromCache(id);
      console.log("[admin delete attività] activitiesCache aggiornata:", result);
    } else {
      localStorage.setItem("activitiesNeedsSync", "1");
      console.warn("[admin delete attività] AdminCacheSync non disponibile, imposto activitiesNeedsSync");
    }
  } catch (err) {
    localStorage.setItem("activitiesNeedsSync", "1");
    console.warn("[admin delete attività] aggiornamento cache fallito:", err.message);
  }

  // await readActivitiesDBUser();
}

// ===============================
//  TOGGLE SOFT DELETE ATTIVITÀ PER ID
// ===============================
async function toggleSoftDeleteActivity() {
  const id = prompt("ID attività da togglare soft delete:");
  if (!id) return;

  const data = await apiPost(`/activities/${id}/toggle-soft`);
  outActivities(compactActivitiesForOutput(Array.isArray(data) ? data : [data]));

  try {
    if (window.AdminCacheSync?.progressiveSyncActivitiesCacheFromAdmin) {
      const result = await AdminCacheSync.progressiveSyncActivitiesCacheFromAdmin();
      console.log("[admin toggle soft attività] activitiesCache aggiornata:", result);
    } else {
      localStorage.setItem("activitiesNeedsSync", "1");
      console.warn("[admin toggle soft attività] AdminCacheSync non disponibile, imposto activitiesNeedsSync");
    }
  } catch (err) {
    localStorage.setItem("activitiesNeedsSync", "1");
    console.warn("[admin toggle soft attività] sync cache fallita:", err.message);
  }

  // await readActivitiesDBUser();
}

// ===============================
//  CERCA ATTIVITÀ PER ID
// ===============================
async function searchActivityById() {
  const id = prompt("ID attività:");
  if (!id) return;

  const user = parseJwt(Admin.token).name;

  const data = await apiGet(`/activities/byIds?id=${id}&user=${user}`);
  outActivities(compactActivitiesForOutput(data));
}

// ===============================
//  MOSTRA CAMBIAMENTI ATTIVITÀ
// ===============================
async function showActivitiesChanges() {
  const since = document.getElementById("sinceInputActivities").value;
  if (!since) return alert("Seleziona una data");

  const iso = new Date(since).toISOString();
  const user = parseJwt(Admin.token).name;

  const data = await apiGet(`/activities/changes?since=${iso}&user=${user}`);
  outActivities(compactActivitiesForOutput(data));
}

// ===============================
//  MOSTRA HARD DELETED ATTIVITÀ
// ===============================
async function showActivitiesHardDeleted() {
  const since = document.getElementById("sinceInputActivities").value;
  if (!since) return alert("Seleziona una data");

  const iso = new Date(since).toISOString();
  const user = parseJwt(Admin.token).name;

  const data = await apiGet(`/activities/deleted_hard?since=${iso}&user=${user}`);
  outActivities(data);
}

// ===============================
// EXPORT
// ===============================
window.AdminDB = {
  readDBUser,
  readDB,
  resetDB,
  resetDBuser,
  deletePhoto,
  toggleSoftDelete,
  findIdIndex,
  searchPhotoById,
  showChanges,

  readActivitiesDBUser,
  readActivitiesDB,
  resetActivitiesDB,
  resetActivitiesDBuser,
  deleteActivity,
  toggleSoftDeleteActivity,
  searchActivityById,
  showActivitiesChanges,
  showActivitiesHardDeleted
};