$(document).ready(function () {
  // Auto render setiap buka offcanvas
  const cartSidebar = document.getElementById('cartSidebar');
  cartSidebar.addEventListener('shown.bs.offcanvas', renderCartList);
  cartSidebar.addEventListener('hidden.bs.offcanvas', function () {
        const cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
        if (cart.length > 0) {
            $('#floatingCartButton').removeClass('d-none');
        }
  });
});



function fetchMenu(filter = {}) {
    const containerGuest = $("#order_guest_id");
    let params = new URLSearchParams({
        page: filter.page || 1,
        per_page: filter.per_page || 6,
        search: filter.search || '',
        jenis_menu: filter.jenis_menu || ''
    }).toString();
    
    containerGuest.html('<p class="text-muted">Memuat data....</p>');

    fetch(`/datamenu?${params}`)
        .then(res => res.json())
        .then(res => {
            if (!res.status){
                return containerGuest.html('<p class="text-danger">Gagal Memuat Data...</p>');
            }
            const session = JSON.parse(sessionStorage.getItem('customerData') || '{}')
            let cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
            if(cart.length > 0){
                updateCartCount(cart.length)
            }
            if(session.nama_customer){
                $("#welcomeMessage").html(`Selamat Datang, <strong>${session.nama_customer}</strong> !`)
            }
            const menus = res.data.data || [];
           
            if (menus.length === 0){
                return containerGuest.html('<p class="text-muted">Pencarian tidak ditemukan.</p>');
            }
            let html = '<div class="container"><div class="row row-cols-1 row-cols-md-2 g-4">';
                menus.forEach(menu => {
                     let hargaResult = 0;
                    if(session.jenis_customer === "Karyawan RSAB Harapan Kita"){
                        hargaResult = menu.harga_karyawan
                    }else if(session.jenis_customer === "Keluarga Pasien / Penunggu Pasien"){
                        hargaResult = menu.harga_keluarga_pasien
                    }else{
                        hargaResult = menu.harga_public
                    }
                    html += `
                    <div class="col-md-6">
                        <div class="card h-100 shadow-sm">
                            <div class="row g-0 h-100">
                                <!-- Bagian kiri (gambar) -->
                                <div class="col-md-5 d-flex align-items-center p-2">
                                    <img src="gambar/${menu.foto || 'default.jpg'}" class="img-fluid rounded" alt="${menu.nama_menu}">
                                </div>

                                <!-- Bagian kanan (konten) -->
                                <div class="col-md-7 d-flex flex-column p-3">
                                    <div class="flex-grow-1">
                                        <h5 class="card-title mb-1">${menu.nama}</h5>
                                        <p class="mb-1">Rp ${parseInt(hargaResult).toLocaleString('id-ID')}</p>
                                        <p class="text-muted small">${menu.deskripsi || ''}</p>
                                        <div class="mb-2">
                                            ${(menu.klasifikasiMenu || []).map(tag => `<span class="badge bg-secondary me-1 mb-1">${tag.nama_kategori_diet}</span>`).join('')}
                                        </div>
                                    </div>
                                </div>
                                <!-- Tombol selalu di bawah -->
                                <div class="col-md-12 mt-auto p-2">
                                        <button class="btn btn-success w-100" onclick="orderMenu(this)"
                                            data-id="${menu.master_menu_id ?? menu.master_paket_menu_id}"
                                            data-nama_menu="${menu.nama}"
                                            data-harga="${hargaResult}"
                                            data-jenis_menu="${menu.jenis_menu}"
                                            data-klasifikasi_menu="${(menu.klasifikasiMenu || []).map(tag => tag.nama_kategori_diet).join(', ')}"
                                            data-foto="${menu.foto}">Order</button>
                                    </div>
                            </div>
                        </div>
                    </div>
                    `;
                });
            
            html += '</div></div>'; 
            html += `<div class="col-md-12 d-flex justify-content-between align-items-center mt-3">
                        <div>
                            <label for="perPageSelect" class="me-2">Tampilkan:</label>
                            <select id="perPageSelect" class="form-select form-select-sm d-inline-block w-auto" onchange="changePerPage(this)">
                                <option value="6" ${filter.per_page == 6 ? 'selected' : ''}>6</option>
                                <option value="10" ${filter.per_page == 10 ? 'selected' : ''}>10</option>
                                <option value="20" ${filter.per_page == 20 ? 'selected' : ''}>20</option>
                            </select>
                        </div>`
            // Pagination buttons
             if (res.data.last_page > 1) {
                html += `
                        <div class="d-flex gap-2">`;
                for (let i = 1; i <= res.data.last_page; i++) {
                    html += `
                        <button class="btn btn-outline-success btn-sm ${res.data.current_page === i ? 'active' : ''}"
                            onclick='fetchMenu(${JSON.stringify({...filter, page: i})})'>${i}</button>`;
                }
                html += `</div>`;
            }
            containerGuest.html(html);
        })
        .catch(err => {
            containerGuest.html('<p class="text-danger">Terjadi kesalahan saat memuat data.</p>');
            console.error(err);
        });
}


const modalCheckout = $("#checkoutModal")
function orderMenu(e){
    const klasifikasiStr = $(e).data('klasifikasi_menu') || '';
    const tags = klasifikasiStr.split(',').map(tag => tag.trim()).filter(tag => tag !== '')
    
    const klasifikasiMenu =tags.map(tag => `
        <span class="badge bg-secondary me-1 mb-1">${tag}</span>
        `).join('');
    
    modalCheckout.modal("show")
    $('#cathering_order_photo').attr('src', `/gambar/${$(e).data('foto')}`)
    $('#cathering_order_name').text($(e).data('nama_menu'))
    $('#cathering_order_price').text("Rp " + parseInt($(e).data('harga')).toLocaleString('id-ID'))
    $("#tag_klasifikasi_menu").html(klasifikasiMenu)
    $('#order_input_wrapper').empty();
    addOrderRow();
}


let orderIndex = 0;
function addOrderRow(data = {}) {
  orderIndex++;

  const html = `
    <div class="row g-2 align-items-center mb-2" data-row="${orderIndex}">
      <div class="col-md-5 col-sm-12">
        <input type="date" name="orders[${orderIndex}][tanggal]" value="${data.tanggal || ''}" class="form-control" required>
      </div>
      <div class="col-md-5 col-sm-10">
        <input type="number" name="orders[${orderIndex}][jumlah]" value="${data.jumlah || ''}" class="form-control" placeholder="Masukkan Jumlah" required min="1">
      </div>
      <div class="col-md-2 col-sm-2 d-flex">
        <button type="button" class="btn btn-danger btn-sm" onclick="removeOrderRow(${orderIndex})"><i class="fa-solid fa-trash"></i></button>
      </div>
    </div>
  `;
  $('#order_input_wrapper').append(html);
}

function removeOrderRow(index) {
  $(`#order_input_wrapper [data-row="${index}"]`).remove();
}


function updateCartCount(count) {
  const $cartCount = $('#cartCount');
  if (count > 0) {
    $cartCount.text(count).show();
    let cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
    let totalHarga = cart.reduce((total, item) => {
        const harga = parseInt(item.harga.replace(/[^\d]/g, '')) || 0;
        const subtotal = item.pesanan.reduce((sum, p) => sum + (p.jumlah * harga), 0);
        return total + subtotal;
    }, 0);
      $('#floatingCartButton').removeClass('d-none');   
      $('#floatingCartCount').text(count);
      $('#floatingCartTotal').text('Rp ' + totalHarga.toLocaleString('id-ID'));
      $('#floatingCartDesc').text(cart[0].nama_menu);
      
  } else {
    $cartCount.hide();
    $('#floatingCartButton').addClass('d-none');
  }
}

    $("#checkoutForm").on('submit', function(e){
            e.preventDefault();
            const orders = [];
            let cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
            $("#order_input_wrapper .row").each(function(){
                const tgl = $(this).find('input[type="date"]').val();
                const jumlah = $(this).find('input[type="number"]').val();
                if(tgl && jumlah > 0){
                    orders.push({ tgl, jumlah})
                }
            })
            let existingItem = cart.find(item => item.nama_menu === $("#cathering_order_name").text());
                if(existingItem){
                    orders.forEach(newOrder => {
                        const existingOrder =existingItem.pesanan.find(p => p.tgl === newOrder.tgl)
                        if(existingOrder){
                            existingOrder.jumlah += newOrder.jumlah;
                        }else{
                            existingItem.pesanan.push(newOrder)
                        }
                    })
                }else{
                    const orderItem ={
                        id:Date.now(),
                        nama_menu : $("#cathering_order_name").text(),
                        harga : $("#cathering_order_price").text(),
                        foto: $('#cathering_order_photo').attr('src'),
                        pesanan : orders
                    }
                    cart.push(orderItem)
                }
            
            sessionStorage.setItem('cart', JSON.stringify(cart))
            updateCartCount(cart.length)
            modalCheckout.modal('hide')
        })

    function renderCartList() {
        $("#cartSidebar").offcanvas('show')
        $('#floatingCartButton').addClass('d-none');
        const cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
        let total = 0;

        const html = cart.map(item => {
            const hargaNum = parseInt(item.harga.replace(/[^\d]/g, ''));
            let pesananHTML = '';

            item.pesanan.forEach((p, i) => {
            pesananHTML += `
                <div class="row align-items-center mb-2" data-item-id="${item.id}" data-index="${i}">
                <div class="col-5">
                    <input type="date" class="form-control form-control-sm tanggal-input" value="${p.tgl}" oninput="onTanggalChange(${item.id}, ${i})">
                </div>
                <div class="col-4">
                    <input type="number" class="form-control form-control-sm jumlah-input" value="${p.jumlah}" min="1" oninput="onJumlahChange(${item.id}, ${i})">
                </div>
                <div class="col-3 text-end">
                    <button class="btn btn-sm btn-danger" onclick="removeOrderDate(${item.id}, ${i})"><i class="fa-solid fa-trash"></i></button>
                </div>
                </div>
            `;
            });

            const itemTotal = item.pesanan.reduce((sum, p) => sum + (p.jumlah * hargaNum), 0);
            total += itemTotal;

            return `
            <div class="card mb-2 p-2">
                <div class="d-flex align-items-center">
                <img src="${item.foto}" class="me-3 rounded" style="width: 60px; height: 60px; object-fit: cover;">
                <div>
                    <div><strong>${item.nama_menu}</strong></div>
                    <div class="text-muted small">${item.harga}</div>
                </div>
                </div>

                <div class="mt-2">
                    ${pesananHTML}
                <button class="btn btn-sm btn-outline-primary mt-2" onclick="addOrderDate(${item.id})">+ Tambah Tanggal</button>
                </div>

                <div class="mt-3 d-flex justify-content-between align-items-center">
                <div><strong>Total:</strong> <span class="total-per-item" data-item-id="${item.id}">Rp ${itemTotal.toLocaleString('id-ID')}</span></div>
                <button class="btn btn-sm btn-outline-danger" onclick="removeCartItem(${item.id})">
                    <i class="fa-solid fa-trash"></i> Hapus Pesanan
                </button>
                </div>
            </div>
            `;
        }).join('');

        $('#cartListContainer').html(html);
        $('#cartTotal').text('Rp ' + total.toLocaleString('id-ID'));
    }


    function addOrderDate(itemId) {
        const cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
        const item = cart.find(i => i.id === itemId);
        if (item) {
            item.pesanan.push({ tgl: '', jumlah: 1 });
            sessionStorage.setItem('cart', JSON.stringify(cart));
            renderCartList();
            
        }
    }

    function removeOrderDate(itemId, index) {
        const cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
        const item = cart.find(i => i.id === itemId);
        if (item && item.pesanan.length > index) {
            item.pesanan.splice(index, 1);
            sessionStorage.setItem('cart', JSON.stringify(cart));
            renderCartList();
        }
    }

    function removeCartItem(itemId){        
         let cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
         cart = cart.filter(i => i.id !== itemId);
         sessionStorage.setItem('cart', JSON.stringify(cart));
         updateCartCount(cart.length);
         renderCartList()
    }

    function onJumlahChange(itemId, index) {
        const cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
        const jumlahInput = document.querySelector(`div[data-item-id='${itemId}'][data-index='${index}'] .jumlah-input`).value;
        if (!isNaN(jumlahInput)) {
            cart.forEach(item => {
                if (item.id === itemId) {
                    item.pesanan[index].jumlah = parseInt(jumlahInput);
                }
            });
            sessionStorage.setItem('cart', JSON.stringify(cart));
            renderCartList();
        }
    }

    function onTanggalChange(itemId, index) {
        const cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
        const tanggalInput = document.querySelector(`div[data-item-id='${itemId}'][data-index='${index}'] .tanggal-input`).value;
        cart.forEach(item => {
            if (item.id === itemId) {
                item.pesanan[index].tgl = tanggalInput;
            }
        });
        sessionStorage.setItem('cart', JSON.stringify(cart));
        validateCheckoutButton();
    }

    function renderCartTotalOnly() {
        const cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
        let total = 0;
        cart.forEach(item => {
            const hargaNum = parseInt(item.harga.replace(/[^\d]/g, ''));
            const itemTotal = item.pesanan.reduce((sum, p) => sum + (p.jumlah * hargaNum), 0);
            total += itemTotal;
        });
        $('#cartTotal').text('Rp ' + total.toLocaleString('id-ID'));
    }

    function updateFloatingCartButton() {
        const cart = JSON.parse(sessionStorage.getItem('cart') || '[]');
        const totalItem = cart.reduce((sum, item) => {
            return sum + item.pesanan.reduce((s, p) => s + p.jumlah, 0);
        }, 0);

        const totalHarga = cart.reduce((sum, item) => {
            const harga = parseInt(item.harga.replace(/[^\d]/g, ''));
            return sum + item.pesanan.reduce((s, p) => s + (p.jumlah * harga), 0);
        }, 0);

        if (cart.length > 0) {
            $('#floatingCartButton').removeClass('d-none');
            $('#floatingCartCount').text(totalItem);
            $('#floatingCartTotal').text('Rp ' + totalHarga.toLocaleString('id-ID'));
            $('#floatingCartDesc').text(`Total pesanan dari ${cart[0].nama_menu}`);
        } else {
            $('#floatingCartButton').addClass('d-none');
        }
    }