/* ============================================================
   js/bantuan.js — Histori bantuan v2.1
   ============================================================ */

window.labelJenisBantuan = {
    sembako:'Sembako', uang:'Uang/Dana', pendidikan:'Pendidikan',
    kesehatan:'Kesehatan', pakaian:'Pakaian', pelatihan:'Pelatihan', lainnya:'Lainnya'
};
window.labelStatusBantuan = {
    tersalur:'Tersalur', belum:'Belum Tersalur', batal:'Dibatalkan'
};

/* Render tab bantuan */
window.renderTabBantuan = async function (item) {
    var container = document.getElementById('detail-tab-bantuan');
    if (!container) return;
    container.innerHTML = '<div class="loading">Memuat histori bantuan...</div>';

    var data = await window.fetchJson('php/read_bantuan.php?kemiskinan_id=' + item.id, []);
    container.innerHTML = '';

    /* Alert jatuh tempo */
    var jt = data.filter(function(d){ return parseInt(d.jatuh_tempo) === 1; });
    if (jt.length) {
        var alert = document.createElement('div');
        alert.className = 'bantuan-alert';
        alert.innerHTML = '<i class="fa-solid fa-triangle-exclamation"></i> ' + jt.length + ' bantuan sudah jatuh tempo dan belum disalurkan!';
        container.appendChild(alert);
    }

    if (window.appAuth.role === 'pengurus_masjid') {
        var btnAdd = document.createElement('button');
        btnAdd.className = 'btn btn-add';
        btnAdd.innerHTML = '+ Catat Bantuan Baru';
        btnAdd.onclick = function () { window.openTambahBantuanModal(item.id, item.nama_kepala_keluarga); };
        container.appendChild(btnAdd);
    }

    if (!data.length) {
        var empty = document.createElement('div');
        empty.className = 'empty'; empty.textContent = 'Belum ada histori bantuan.';
        container.appendChild(empty); return;
    }

    data.forEach(function (b) {
        var jmlTxt = b.jumlah_bantuan ? b.jumlah_bantuan + ' ' + (b.satuan || '') : '—';
        var isJt   = parseInt(b.jatuh_tempo) === 1;

        var card = document.createElement('div');
        card.className = 'b-card ' + b.status_penyaluran + (isJt ? ' jatuh' : '');

        var chipColors = { tersalur:'chip-green', belum:'chip-amber', batal:'chip-gray' };

        card.innerHTML =
            '<div class="b-head">' +
                '<span class="b-jenis">' + (window.labelJenisBantuan[b.jenis_bantuan] || b.jenis_bantuan) + '</span>' +
                '<span class="chip ' + (chipColors[b.status_penyaluran]||'chip-gray') + '">' + (window.labelStatusBantuan[b.status_penyaluran]||b.status_penyaluran) + '</span>' +
            '</div>' +
            '<div class="b-desc">' + window.escapeHtml(b.deskripsi_bantuan) + '</div>' +
            '<div class="b-meta">📅 ' + (b.tanggal_fmt||'—') + ' · ' + window.escapeHtml(jmlTxt) + (b.nama_masjid ? ' · ' + window.escapeHtml(b.nama_masjid) : '') + '</div>' +
            (b.periode_fmt ? '<div class="b-periode' + (isJt ? ' late' : '') + '">Berikutnya: ' + b.periode_fmt + (isJt ? ' — Jatuh Tempo!' : '') + '</div>' : '') +
            (b.dicatat_oleh ? '<div class="b-meta">Dicatat: ' + window.escapeHtml(b.dicatat_oleh) + '</div>' : '');

        if (window.appAuth.role === 'pengurus_masjid') {
            var acts = document.createElement('div');
            acts.className = 'b-acts';

            if (b.status_penyaluran === 'belum') {
                var btnS = document.createElement('button');
                btnS.className = 'btn btn-salur'; btnS.textContent = '✓ Tandai Tersalur';
                btnS.onclick = (function(bid){ return async function(){
                    try {
                        await window.postForm('php/update_bantuan_status.php', { id: bid, status_penyaluran: 'tersalur' });
                        window.showToast('Bantuan ditandai tersalur.', 'success');
                        window.renderTabBantuan(item);
                    } catch(e){ window.showToast('Gagal: ' + e.message, 'error'); }
                }; })(b.id);
                acts.appendChild(btnS);

                var btnBt = document.createElement('button');
                btnBt.className = 'btn btn-delete'; btnBt.textContent = 'Batalkan';
                btnBt.onclick = (function(bid){ return async function(){
                    if (!confirm('Batalkan bantuan ini?')) return;
                    try {
                        await window.postForm('php/update_bantuan_status.php', { id: bid, status_penyaluran: 'batal' });
                        window.showToast('Bantuan dibatalkan.', 'info');
                        window.renderTabBantuan(item);
                    } catch(e){ window.showToast('Gagal: ' + e.message, 'error'); }
                }; })(b.id);
                acts.appendChild(btnBt);
            }

            var btnH = document.createElement('button');
            btnH.className = 'btn btn-delete'; btnH.innerHTML = '<i class="fa-solid fa-trash"></i>';
            btnH.onclick = (function(bid){ return async function(){
                if (!confirm('Hapus catatan bantuan ini?')) return;
                try {
                    await window.postForm('php/delete_bantuan.php', { id: bid });
                    window.showToast('Catatan dihapus.', 'success');
                    window.renderTabBantuan(item);
                } catch(e){ window.showToast('Gagal: ' + e.message, 'error'); }
            }; })(b.id);
            acts.appendChild(btnH);
            card.appendChild(acts);
        }
        container.appendChild(card);
    });
};

/* Modal tambah bantuan */
window.openTambahBantuanModal = function (kemiskinanId, namaKK) {
    document.getElementById('bantuan-kem-id').value     = kemiskinanId;
    document.getElementById('bantuan-jenis').value      = 'sembako';
    document.getElementById('bantuan-deskripsi').value  = '';
    document.getElementById('bantuan-jumlah').value     = '';
    document.getElementById('bantuan-satuan').value     = '';
    document.getElementById('bantuan-tanggal').value    = new Date().toISOString().split('T')[0];
    document.getElementById('bantuan-periode').value    = '';
    document.getElementById('bantuan-status').value     = 'belum';
    document.getElementById('bantuan-dicatat').value    = window.appAuth.nama || '';
    document.getElementById('modal-bantuan-title').textContent = 'Catat Bantuan — ' + namaKK;

    var modal = document.getElementById('modal-bantuan');
    modal.style.display = 'flex';
    document.getElementById('bantuan-deskripsi').focus();
    modal.onclick = function (e) { if (e.target === this) this.style.display = 'none'; };

    document.getElementById('btn-submit-bantuan').onclick = async function () {
        var btn = this;
        btn.disabled = true; btn.textContent = 'Menyimpan...';
        var desc = document.getElementById('bantuan-deskripsi').value.trim();
        if (!desc) { window.showToast('Deskripsi wajib diisi.', 'error'); btn.disabled=false; btn.textContent='Simpan Bantuan'; return; }
        var payload = {
            kemiskinan_id:     document.getElementById('bantuan-kem-id').value,
            jenis_bantuan:     document.getElementById('bantuan-jenis').value,
            deskripsi_bantuan: desc,
            jumlah_bantuan:    document.getElementById('bantuan-jumlah').value,
            satuan:            document.getElementById('bantuan-satuan').value.trim(),
            tanggal_bantuan:   document.getElementById('bantuan-tanggal').value,
            periode_berikutnya:document.getElementById('bantuan-periode').value,
            status_penyaluran: document.getElementById('bantuan-status').value,
            dicatat_oleh:      document.getElementById('bantuan-dicatat').value.trim()
        };
        try {
            await window.postForm('php/create_bantuan.php', payload);
            modal.style.display = 'none';
            window.showToast('Bantuan berhasil dicatat.', 'success');
            if (window._currentDetailItem && window._currentDetailItem.id === parseInt(payload.kemiskinan_id)) {
                window.renderTabBantuan(window._currentDetailItem);
            }
        } catch (err) { window.showToast('Gagal: ' + err.message, 'error'); }
        finally { btn.disabled=false; btn.textContent='Simpan Bantuan'; }
    };
};