// Custom JavaScript for Delphi Database

document.addEventListener('DOMContentLoaded', function() {
    // Initialize tooltips if any
    if (window.bootstrap && bootstrap.Tooltip) {
        var tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="tooltip"]'));
        tooltipTriggerList.forEach(function (tooltipTriggerEl) {
            new bootstrap.Tooltip(tooltipTriggerEl);
        });
    }

    // Auto-hide alerts after 5 seconds
    var alerts = document.querySelectorAll('.alert:not(.alert-permanent)');
    alerts.forEach(function(alert) {
        setTimeout(function() {
            var bsAlert = new bootstrap.Alert(alert);
            bsAlert.close();
        }, 5000);
    });

    // Confirm delete actions
    var deleteButtons = document.querySelectorAll('[data-confirm-delete]');
    deleteButtons.forEach(function(button) {
        button.addEventListener('click', function(e) {
            var message = this.getAttribute('data-confirm-delete') || 'Are you sure you want to delete this item?';
            if (!confirm(message)) {
                e.preventDefault();
            }
        });
    });

    // Form validation enhancement
    var forms = document.querySelectorAll('.needs-validation');
    Array.prototype.slice.call(forms).forEach(function(form) {
        form.addEventListener('submit', function(event) {
            if (!form.checkValidity()) {
                event.preventDefault();
                event.stopPropagation();
            }
            form.classList.add('was-validated');
        }, false);
    });

    // Dynamic form field enabling/disabling
    var toggleFields = document.querySelectorAll('[data-toggle-field]');
    toggleFields.forEach(function(element) {
        element.addEventListener('change', function() {
            var targetSelector = this.getAttribute('data-toggle-field');
            var targetField = document.querySelector(targetSelector);
            if (targetField) {
                targetField.disabled = !this.checked;
            }
        });
    });

    // Auto-compute Amount = Quantity × Rate in ledger add form
    var qtyInput = document.querySelector('form[action*="/ledger"] .js-qty');
    var rateInput = document.querySelector('form[action*="/ledger"] .js-rate');
    var amountInput = document.querySelector('form[action*="/ledger"] .js-amount');

    function recomputeAmount() {
        if (!qtyInput || !rateInput || !amountInput) return;
        var q = parseFloat(qtyInput.value);
        var r = parseFloat(rateInput.value);
        if (!isNaN(q) && !isNaN(r)) {
            var amt = (q * r);
            amountInput.value = amt.toFixed(2);
        }
    }

    if (qtyInput) qtyInput.addEventListener('input', recomputeAmount);
    if (rateInput) rateInput.addEventListener('input', recomputeAmount);

    // Generic select-all for answer tables
    document.querySelectorAll('.js-answer-table').forEach(function(form) {
        var selectAll = form.querySelector('.js-select-all');
        if (!selectAll) return;
        selectAll.addEventListener('change', function() {
            var checkboxes = form.querySelectorAll('input[type="checkbox"][name]');
            checkboxes.forEach(function(cb) {
                if (cb !== selectAll) cb.checked = selectAll.checked;
            });
        });
    });

    // Submit selection to alternate endpoints using data-action
    document.querySelectorAll('.js-submit-to').forEach(function(link) {
        link.addEventListener('click', function(e) {
            e.preventDefault();
            var container = link.closest('.table-responsive') || document;
            var form = container.querySelector('form.js-answer-table');
            if (!form) form = document.querySelector('form.js-answer-table');
            if (!form) return;
            var original = form.getAttribute('action');
            var action = link.getAttribute('data-action');
            if (action) form.setAttribute('action', action);
            try {
                form.submit();
            } finally {
                if (original) form.setAttribute('action', original);
            }
        });
    });

    // Field help: show contextual help from data-help on focus
    function attachFieldHelp(container) {
        if (!container) return;
        var helpEl = container.querySelector('#fieldHelp');
        if (!helpEl) return;
        container.querySelectorAll('input, select, textarea').forEach(function(field) {
            field.addEventListener('focus', function() {
                var text = field.getAttribute('data-help');
                if (text) helpEl.textContent = text;
            });
            field.addEventListener('blur', function() {
                // Optionally keep last help, or reset
            });
        });
    }

    // Attach help to known forms/sections
    document.querySelectorAll('form').forEach(function(form) {
        attachFieldHelp(form.closest('.card-body') || form);
    });
});

// Utility functions
function formatDate(dateString) {
    if (!dateString) return '';
    var date = new Date(dateString);
    return date.toLocaleDateString();
}

function formatCurrency(amount) {
    if (!amount) return '$0.00';
    return new Intl.NumberFormat('en-US', {
        style: 'currency',
        currency: 'USD'
    }).format(amount);
}

function showLoading(button) {
    if (button) {
        button.disabled = true;
        button.innerHTML = '<span class="spinner-border spinner-border-sm me-2"></span>Loading...';
    }
}

function hideLoading(button, originalText) {
    if (button) {
        button.disabled = false;
        button.innerHTML = originalText;
    }
}