/* berkas.js — Halaman daftar & unggah berkas pelamar */
(function () {
  'use strict';

  var $ = function (s, r) { return (r || document).querySelector(s); };
  var SLOTS = [
    { key: 'cv', label: 'CV' },
    { key: 'test', label: 'Hasil Test' },
    { key: 'portofolio', label: 'Portofolio' }
  ];
  var MAX_FILE = 5 * 1024 * 1024; // 5 MB
  var q = '';

  function esc(v) { return UI.escape(v); }

  function init() {
    Store.init();
    render();
    $('#bSearch').addEventListener('input', function (e) { q = e.target.value.toLowerCase(); render(); });
  }

  function slotCell(c, slot) {
    var b = c.berkas && c.berkas[slot.key];
    var value = '<span class="muted small">Belum ada</span>';
    if (b) {
      var label = b.mode === 'file' ? b.name : (b.url.length > 34 ? b.url.slice(0, 34) + '…' : b.url);
      value = '<div>' + (b.mode === 'file' ? '📎 ' : '🔗 ') + esc(label) +
        (b.mode === 'file' ? ' <span class="muted small">(' + UI.formatBytes(b.size) + ')</span>' : '') + '</div>';
    }
    return '<td>' + value +
      '<div class="actions mt1">' +
        (b ? '<button class="btn btn-ghost btn-sm" data-open="' + slot.key + '" data-id="' + c.id + '">Lihat</button>' : '') +
        '<label class="btn btn-ghost btn-sm" style="margin:0">Upload<input type="file" hidden data-berkas-file="' + slot.key + '" data-id="' + c.id + '" accept=".pdf,.doc,.docx,.jpg,.jpeg,.png"></label>' +
        '<button class="btn btn-ghost btn-sm" data-berkas-link="' + slot.key + '" data-id="' + c.id + '">Link</button>' +
        (b ? '<button class="btn btn-danger btn-sm" data-berkas-del="' + slot.key + '" data-id="' + c.id + '">Hapus</button>' : '') +
      '</div></td>';
  }

  function render() {
    var list = Store.get().candidates.filter(function (c) {
      if (!q) return true;
      return (c.nama || '').toLowerCase().indexOf(q) >= 0 || (c.posisi || '').toLowerCase().indexOf(q) >= 0;
    });

    if (!list.length) {
      $('#bBody').innerHTML = '';
      $('#bEmpty').classList.remove('hidden');
      $('.table-wrap').classList.add('hidden');
      return;
    }
    $('#bEmpty').classList.add('hidden');
    $('.table-wrap').classList.remove('hidden');

    $('#bBody').innerHTML = list.map(function (c) {
      return '<tr>' +
        '<td><strong>' + esc(c.nama) + '</strong><div class="muted small">' + esc(c.posisi) + '</div></td>' +
        SLOTS.map(function (s) { return slotCell(c, s); }).join('') +
      '</tr>';
    }).join('');
  }

  function setBerkas(id, slot, value) {
    var c = Store.candidateById(id);
    if (!c) return;
    c.berkas = c.berkas || { cv: null, test: null, portofolio: null };
    var old = c.berkas[slot];
    if (old && old.mode === 'file' && old.fileId && (!value || value.fileId !== old.fileId)) {
      Store.deleteFile(old.fileId).catch(function () {});
    }
    c.berkas[slot] = value;
    Store.save();
  }

  function handleFile(input) {
    var file = input.files && input.files[0];
    if (!file) return;
    var id = input.getAttribute('data-id');
    var slot = input.getAttribute('data-berkas-file');
    if (file.size > MAX_FILE) { UI.toast('Ukuran berkas maksimal 5 MB.', 'err'); input.value = ''; return; }
    UI.toast('Menyimpan berkas...');
    Store.saveFile(file).then(function (meta) {
      setBerkas(id, slot, { mode: 'file', fileId: meta.id, name: meta.name, size: meta.size, type: meta.type });
      UI.toast('Berkas tersimpan.', 'ok');
      render();
    }).catch(function (err) {
      UI.toast('Gagal menyimpan berkas: ' + err.message, 'err');
    });
    input.value = '';
  }

  document.addEventListener('click', function (e) {
    var openBtn = e.target.closest('[data-open]');
    if (openBtn) {
      var c = Store.candidateById(openBtn.getAttribute('data-id'));
      var b = c && c.berkas && c.berkas[openBtn.getAttribute('data-open')];
      if (!b) return;
      if (b.mode === 'link') { window.open(b.url, '_blank', 'noopener'); return; }
      Store.getFileUrl(b.fileId).then(function (url) { window.open(url, '_blank', 'noopener'); })
        .catch(function () { UI.toast('Berkas tidak ditemukan.', 'err'); });
      return;
    }

    var linkBtn = e.target.closest('[data-berkas-link]');
    if (linkBtn) {
      var id = linkBtn.getAttribute('data-id');
      var slot = linkBtn.getAttribute('data-berkas-link');
      var url = window.prompt('Masukkan URL berkas (Google Drive, dll):');
      if (url && url.trim()) {
        setBerkas(id, slot, { mode: 'link', url: url.trim() });
        UI.toast('Link tersimpan.', 'ok');
        render();
      }
      return;
    }

    var delBtn = e.target.closest('[data-berkas-del]');
    if (delBtn) {
      if (UI.confirmDialog('Hapus berkas ini?')) {
        setBerkas(delBtn.getAttribute('data-id'), delBtn.getAttribute('data-berkas-del'), null);
        UI.toast('Berkas dihapus.', 'ok');
        render();
      }
    }
  });

  document.addEventListener('change', function (e) {
    var input = e.target.closest('[data-berkas-file]');
    if (input) handleFile(input);
  });

  document.addEventListener('DOMContentLoaded', init);
})();