/**
 * Admin Offices Page
 * Manage offices, quotas, and prefixes
 */

let currentUser = null;
let offices = [];

document.addEventListener('DOMContentLoaded', async () => {
    currentUser = await api.requireAuth();
    if (!currentUser) return;

    if (currentUser.role !== 'admin') {
        window.location.href = '/presence';
        return;
    }

    await loadOffices();
    setupEventListeners();
});

async function loadOffices() {
    const response = await api.get('/api/offices');
    if (response && response.ok) {
        offices = await response.json();
        renderOffices();
    }
}

function renderOffices() {
    const tbody = document.getElementById('officesBody');

    if (offices.length === 0) {
        tbody.innerHTML = '<tr><td colspan="5" class="text-center">Nessun ufficio trovato</td></tr>';
        return;
    }

    tbody.innerHTML = offices.map(office => {
        return `
            <tr>
                <td>${office.name}</td>
                <td><span class="badge badge-info">${office.parking_quota} posti</span></td>
                <td><strong>${office.spot_prefix || '-'}</strong></td>
                <td>${office.user_count || 0} utenti</td>
                <td>
                    <button class="btn btn-sm btn-secondary" onclick="editOffice('${office.id}')">Modifica</button>
                    <button class="btn btn-sm btn-danger" onclick="deleteOffice('${office.id}')" ${office.user_count > 0 ? 'title="Impossibile eliminare uffici con utenti" disabled' : ''}>Elimina</button>
                </td>
            </tr>
        `;
    }).join('');
}

function openModal(title) {
    document.getElementById('officeModalTitle').textContent = title;
    document.getElementById('officeModal').style.display = 'flex';
}

function closeModal() {
    document.getElementById('officeModal').style.display = 'none';
    document.getElementById('officeForm').reset();
    document.getElementById('officeId').value = '';
}

async function editOffice(officeId) {
    const office = offices.find(o => o.id === officeId);
    if (!office) return;

    document.getElementById('officeId').value = office.id;
    document.getElementById('officeName').value = office.name;
    document.getElementById('officeQuota').value = office.parking_quota;

    openModal('Modifica Ufficio');
}

async function deleteOffice(officeId) {
    const office = offices.find(o => o.id === officeId);
    if (!office) return;

    if (!confirm(`Eliminare l'ufficio "${office.name}"?`)) return;

    const response = await api.delete(`/api/offices/${officeId}`);
    if (response && response.ok) {
        utils.showMessage('Ufficio eliminato', 'success');
        await loadOffices();
    } else {
        const error = await response.json();
        utils.showMessage(error.detail || 'Impossibile eliminare l\'ufficio', 'error');
    }
}

function setupEventListeners() {
    // Add button
    document.getElementById('addOfficeBtn').addEventListener('click', () => {
        openModal('Nuovo Ufficio');
    });

    // Modal close
    document.getElementById('closeOfficeModal').addEventListener('click', closeModal);
    document.getElementById('cancelOffice').addEventListener('click', closeModal);
    utils.setupModalClose('officeModal');

    // Debug tracking for save button
    const saveBtn = document.getElementById('saveOfficeBtn');
    if (saveBtn) {
        saveBtn.addEventListener('click', () => console.log('Save button clicked'));
    }

    // Form submit
    const form = document.getElementById('officeForm');
    form.addEventListener('submit', handleOfficeSubmit);
}

async function handleOfficeSubmit(e) {
    e.preventDefault();
    console.log('Form submitting...');

    const saveBtn = document.getElementById('saveOfficeBtn');
    const originalText = saveBtn.innerHTML;
    saveBtn.disabled = true;
    saveBtn.innerHTML = 'Salvataggio...';

    const officeId = document.getElementById('officeId').value;
    const data = {
        name: document.getElementById('officeName').value,
        parking_quota: parseInt(document.getElementById('officeQuota').value) || 0
    };

    console.log('Payload:', data);

    try {
        let response;
        if (officeId) {
            response = await api.put(`/api/offices/${officeId}`, data);
        } else {
            response = await api.post('/api/offices', data);
        }

        console.log('Response status:', response ? response.status : 'null');

        if (response && response.ok) {
            closeModal();
            utils.showMessage(officeId ? 'Ufficio aggiornato' : 'Ufficio creato', 'success');
            await loadOffices();
        } else {
            let errorMessage = 'Errore operazione';
            try {
                const error = await response.json();
                errorMessage = error.detail || errorMessage;
            } catch (e) {
                console.error('Error parsing JSON error:', e);
                errorMessage = 'Errore server imprevisto (' + (response ? response.status : 'network') + ')';
            }
            utils.showMessage(errorMessage, 'error');
        }
    } catch (error) {
        console.error('Form submit exception:', error);
        utils.showMessage('Errore di connessione: ' + error.message, 'error');
    } finally {
        saveBtn.disabled = false;
        saveBtn.innerHTML = originalText;
    }
}

// Global functions
window.editOffice = editOffice;
window.deleteOffice = deleteOffice;