@extends('layouts.dashboard')

@section('title', 'Departments')

@section('content')
<div class="bg-white shadow-md rounded-lg p-6 mb-6 flex justify-between items-center">
    <div class="flex items-center space-x-3">
        <label for="entriesPerPage" class="text-sm font-medium text-gray-600">Show</label>
        <select id="entriesPerPage" class="border border-gray-300 rounded-md px-3 py-1.5 focus:ring focus:border-blue-500 text-sm">
            <option value="10" selected>10</option>
            <option value="25">25</option>
            <option value="50">50</option>
            <option value="100">100</option>
        </select>
        <span class="text-sm font-medium text-gray-600">entries</span>
    </div>
    <input type="text" id="searchInput" placeholder="Search departments..." 
        class="border border-gray-300 rounded-md px-4 py-2 w-72 focus:ring focus:border-blue-500 shadow-md text-gray-700 transition">
</div>

<div class="bg-white shadow-md rounded-lg p-6">
    <div class="flex justify-between items-center mb-5">
        <h2 class="text-2xl font-semibold text-gray-800">Departments</h2>
    
 <button onclick="openModal('addModal')" class="font-semibold text-white bg-gradient-to-r bg-teal-600 hover:bg-gradient-to-br focus:ring-4 focus:outline-none focus:bg-teal-600 font-medium rounded-lg text-sm px-5 py-2.5 text-center me-2 mb-2 transition duration-200">
            + Add Department
        </button>





    </div>

    <div class="overflow-x-auto">
        <table class="w-full border-collapse bg-white shadow-md rounded-lg text-left" id="departmentsTable">
            <thead class="bg-slate-50 text-gray-700 font-semibold">
                <tr>
                    <th class="border px-5 py-3">S/N</th>
                    <th class="border px-5 py-3">Name</th>
                    <th class="border px-5 py-3">Description</th>
                    <th class="border px-5 py-3 text-center">Actions</th>
                </tr>
            </thead>
            <tbody>
                @foreach ($departments as $department)
                    <tr id="department-{{ $department->id }}" class="hover:bg-gray-50 transition">
                        <td class="border px-5 py-3 text-gray-700">{{ $departments->firstItem() + $loop->index }}</td>
                        <td class="border px-5 py-3 font-medium text-gray-900">{{ $department->name }}</td>
                        <td class="border px-5 py-3 text-gray-700">{{ $department->description }}</td>
                        <td class="border px-5 py-3 flex justify-center space-x-2">
                            <button onclick="editDepartment({{ $department->id }})" 
                                class="text-white bg-gray-800 hover:bg-gray-900 focus:outline-none focus:ring-4 focus:ring-gray-300 font-medium rounded-lg text-sm px-5 py-2.5 me-2 mb-2 dark:bg-gray-800 dark:hover:bg-gray-700 dark:focus:ring-gray-700 dark:border-gray-700 px-3 py-1.5 rounded-md shadow hover:bg-yellow-600 transition">
                                Edit
                            </button>
                            <button onclick="deleteDepartment(this)" data-id="{{ $department->id }}"
                                class="text-white bg-gradient-to-r from-teal-400 via-teal-500 to-teal-600 hover:bg-gradient-to-br focus:ring-4 focus:outline-none focus:ring-teal-300 dark:focus:ring-teal-800 font-medium rounded-lg text-sm px-5 py-2.5 text-center me-2 mb-2">
                                Delete
                            </button>
                        </td>
                    </tr>
                @endforeach
            </tbody>
        </table>
    </div>

    <!-- Pagination (Aligned Right) -->
    <div class="mt-6 flex justify-end">
        {{ $departments->links() }}
    </div>
</div>

<!-- Add/Edit Modal -->
<div id="addModal" class="fixed inset-0 bg-black bg-opacity-50 hidden flex items-center justify-center">
<div class="bg-white p-8 rounded-lg w-1/3 shadow-lg relative">

        <!-- Close Icon -->
        <button onclick="closeModal('addModal')" class="absolute top-3 right-3 text-2xl text-gray-500 hover:text-black">&times;</button>

        <h2 class="text-2xl font-semibold mb-6 text-gray-800" id="modalTitle">Add Department</h2>
        
        <form id="departmentForm" method="POST">
            @csrf
            <input type="hidden" id="departmentId">

            <div class="mb-4">
                <label for="name" class="block text-sm font-medium text-gray-700">Department Name</label>
                <input type="text" id="name" name="name" 
                    class="w-full px-4 py-2 border rounded-md focus:ring focus:border-blue-500 text-gray-900 shadow-sm">
                <span id="nameError" class="text-red-500 text-sm"></span>
            </div>

            <div class="mb-4">
                <label for="description" class="block text-sm font-medium text-gray-700">Description</label>
                <textarea id="description" name="description" 
                    class="w-full px-4 py-2 border rounded-md focus:ring focus:border-blue-500 text-gray-900 shadow-sm"></textarea>
                <span id="descriptionError" class="text-red-500 text-sm"></span>
            </div>

            <div class="flex justify-end space-x-3 mt-6">
                <button type="button" onclick="closeModal('addModal')" 
                    class="px-4 py-2 bg-gray-500 text-white rounded-md shadow hover:bg-gray-600 transition">
                    Cancel
                </button>
                <button type="submit" 
                    class="px-4 py-2 bg-blue-600 text-white rounded-md shadow hover:bg-blue-700 transition">
                    Save
                </button>
            </div>
        </form>
    </div>
</div>

<!-- Success Modal -->
<div id="successModal" class="fixed inset-0 bg-gray-900 bg-opacity-50 hidden flex items-center justify-center">
    <div class="bg-white p-6 rounded-lg w-96 text-center">
        <h2 class="text-lg font-bold text-green-600">Success!</h2>
        <p id="successMessage" class="mt-2"></p>
        <button onclick="closeSuccessModal()" class="mt-4 px-4 py-2 bg-blue-500 text-white rounded">OK</button>
    </div>
</div>

<script>

document.getElementById('departmentForm').addEventListener('submit', function (event) {
    event.preventDefault();

    let formData = new FormData(this);
    let departmentId = document.getElementById('departmentId').value;

    if (departmentId) {
        formData.append('_method', 'PUT'); // Laravel requires this for PUT requests
    }

    let url = departmentId ? `departments/${departmentId}` : 'departments';

    fetch(url, {
        method: 'POST', // Always use POST, and Laravel will detect `_method=PUT`
        headers: {
            'X-CSRF-TOKEN': document.querySelector('meta[name="csrf-token"]').getAttribute('content'),
            'Accept': 'application/json'
        },
        body: formData
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            showSuccessModal(data.success);
        } else {
            displayErrors(data.errors);
        }
    })
    .catch(error => console.error('Error:', error));
});


    function displayErrors(errors) {
        document.getElementById('nameError').innerText = errors.name ? errors.name[0] : '';
        document.getElementById('descriptionError').innerText = errors.description ? errors.description[0] : '';
    }

    function openModal(id) {
        document.getElementById(id).classList.remove('hidden');
    }

    function closeModal(id) {
        document.getElementById(id).classList.add('hidden');
    }

    function showSuccessModal(message) {
        document.getElementById("successMessage").innerText = message;
        document.getElementById("successModal").classList.remove("hidden");
    }

    function closeSuccessModal() {
        document.getElementById("successModal").classList.add("hidden");
        location.reload(); 
    }

    function editDepartment(id) {
        fetch(`departments/${id}/edit`)
            .then(res => res.json())
            .then(data => {
                document.getElementById('modalTitle').innerText = 'Edit Department';
                document.getElementById('departmentId').value = data.id;
                document.getElementById('name').value = data.name;
                document.getElementById('description').value = data.description;
                openModal('addModal');
            });
    }

    function deleteDepartment(button) {
        let departmentId = button.getAttribute('data-id');

        if (!confirm('Are you sure you want to delete this department?')) {
            return;
        }

        fetch(`departments/${departmentId}`, {
            method: 'DELETE',
            headers: {
                'X-CSRF-TOKEN': document.querySelector('meta[name="csrf-token"]').getAttribute('content')
            }
        })
        .then(() => {
            document.getElementById(`department-${departmentId}`).remove();
            alert('Department deleted successfully!');
        });
    }
    document.addEventListener("DOMContentLoaded", function () {
    let searchInput = document.getElementById("searchInput");
    let entriesSelect = document.getElementById("entriesPerPage");
    let table = document.querySelector("table tbody");
    let rows = table.getElementsByTagName("tr");

    // Function to filter table rows based on search input
    function filterTable() {
        let searchText = searchInput.value.toLowerCase();

        Array.from(rows).forEach(row => {
            let textContent = row.innerText.toLowerCase();
            row.style.display = textContent.includes(searchText) ? "" : "none";
        });
    }

    // Function to control entries per page
    function updateEntriesPerPage() {
        let numEntries = parseInt(entriesSelect.value);
        let totalRows = rows.length;

        // Show only selected number of rows
        Array.from(rows).forEach((row, index) => {
            row.style.display = index < numEntries ? "" : "none";
        });
    }

    // Event listeners
    searchInput.addEventListener("keyup", filterTable);
    entriesSelect.addEventListener("change", updateEntriesPerPage);

    // Initialize the table with the default entries per page
    updateEntriesPerPage();
});
</script>
@endsection