@extends('dashboard.layouts.main')

@section('content')
@php
$authUser = Auth::user();
@endphp
<style>
    select.form-control {
        color: black;
    }

    #progressContainer {
        width: 100%;
        max-width: 600px;
        margin: 20px auto;
        text-align: center;
    }

    #progressBar {
        width: 100%;
        height: 25px;
    }

    #progressText {
        margin-top: 10px;
        font-size: 16px;
        font-weight: bold;
    }

    .loader {
        border: 16px solid transparent;
        border-top: 16px solid blue;
        border-radius: 50%;
        width: 60px;
        height: 60px;
        animation: spin 2s linear infinite;
    }

    @keyframes spin {
        0% {
            transform: rotate(0deg);
        }

        100% {
            transform: rotate(360deg);
        }
    }

    .table-striped tbody tr:nth-child(odd) {
        background-color: #f9f9f9;
    }

    .table-striped tbody tr:nth-child(even) {
        background-color: #ffffff;
    }

    /* Enhanced styles for selection functionality */
    #selectAll {
        cursor: pointer;
        margin-left: 5px;
    }

    #submitButton {
        margin-top: 20px;
        transition: all 0.3s ease;
        display: none;
    }

    .emailCheckbox {
        cursor: pointer;
    }

    .avatar-img {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        object-fit: cover;
    }

    /* Progress bar styling */
    #progressContainer-old {
        margin: 20px 0;
        padding: 15px;
        background: #f8f9fa;
        border-radius: 5px;
    }

    /* Notification badge */
    .notification-badge {
        position: relative;
        display: inline-block;
    }

    .badge-count {
        position: absolute;
        top: -5px;
        right: -5px;
        background: #dc3545;
        color: white;
        border-radius: 50%;
        padding: 3px 6px;
        font-size: 10px;
    }

    /* Progress notification */
    .progress-notification {
        position: fixed;
        top: 70px;
        right: 20px;
        z-index: 9999;
        min-width: 250px;
    }
</style>

<!-- Progress Notification -->
<div class="progress-notification alert alert-info d-none" id="globalProgressNotification">
    <div class="d-flex justify-content-between align-items-center">
        <span id="notificationMessage">Processing emails...</span>
        <span id="notificationProgress">0%</span>
    </div>
    <div class="progress mt-2" style="height: 5px;">
        <div id="notificationProgressBar" class="progress-bar" role="progressbar" style="width: 0%"></div>
    </div>
</div>

<div class="container fetching_header_loading mt-4 d-none">
    <div class="spinner-border" role="status">
        <span class="visually-hidden">Loading...</span>
    </div> Fetching Emails please wait...
</div>
<div class="container fetching_header mt-4">
    @if($authUser->platform == 1)
    @if (session('yourEmail'))
    <div class="d-flex justify-content-between align-items-center">
        <p>Welcome, <b>{{$authUser->name}}</b> {{ session('yourEmail') }}!</p>
    </div>
    @else
    <a href="{{ url('login/google') }}">
        <img src="https://developers.google.com/identity/images/btn_google_signin_dark_normal_web.png" alt="Login with Google">
    </a>
    @endif
    @elseif($authUser->platform == 2)
    @if (session('microsoft_email'))
    <div class="d-flex justify-content-between align-items-center">
        <p>Welcome, {{ session('microsoft_email') }}!</p>
    </div>
    @else
    <a href="{{ url('auth/redirect') }}">
        <img src="https://goodtracker.abc/outlook.png" style="width: 4%; height: auto;">
    </a>
    @endif
    @endif
</div>

@if ($correspondences)
<div class="fetching_header">
    <div class="form-check">
        <input class="form-check-input" type="radio" name="recipients_data" value="0" id="recipients_data" disabled>
        <label class="form-check-label" for="flexRadioDefault1">
            Recipients Only.
        </label>
    </div>
    <div class="form-check">
        <input class="form-check-input" type="radio" name="recipients_data" value="1" id="recipients_data" disabled>
        <label class="form-check-label" for="flexRadioDefault2">
            With Correspondance and Attachment list.
        </label>
    </div>
    <button id="fetchEmails" onclick="fetch_emails({{$authUser->platform}})" class="btn btn-primary">Fetch Emails</button>

    <div class="container mt-4">
        <div id="progressContainer-old" style="display: none;">
            <progress id="progressBar" value="0" max="100"></progress>
            <p id="progressText">Processing: 0%</p>
        </div>
    </div>
    <h5>Total Email {{count($allEmails)}}</h5>
</div>
@endif

<div class="card shadow-sm">
    <div class="card-header bg-primary text-white d-flex justify-content-between align-items-center">
        <h4>Client List</h4>
        <div class="btn-group">
            <button id="showTableBtn" class="btn btn-light active">Show Table</button>
            <button id="showChartBtn" class="btn btn-light">Show Chart</button>
        </div>
    </div>

    <div class="card-body">
        @if (session('success'))
        <div class="alert alert-success">
            {{ session('success') }}
        </div>
        @endif

        <!-- Table View -->
        <div id="tableView">
            <form id="emailForm" action="{{ route('admin.emails.queue') }}" method="POST">
                @csrf
                <input type="hidden" id="currentJobId" value="{{ $jobId }}">
                <input type="hidden" id="allEmails" value="{{ json_encode($allEmails) }}">
                <div class="table-responsive">
                    <table class="table table-bordered table-striped">
                        <thead>
                            <tr>
                                <th width="50px"><input type="checkbox" id="selectAll"></th>
                                <th>#</th>
                                <th>Photo</th>
                                <th>Lable</th>
                                <th>Name</th>
                                <th>Email Address</th>
                                <th>Last Update</th>
                                <th>Total Message</th>
                                <th>Attachment File Size</th>
                                <th>Actions</th>
                            </tr>
                        </thead>
                        <tbody>
                            @foreach ($correspondences as $index=> $correspondence)
                            @php
                            $attachmentSize = "";
                            if($correspondence->attachments()->exists()){
                            $allSize = $correspondence->attachments()->pluck('size')->toArray();
                            $attachmentSize = formatSize(array_sum(array_map('convertToBytes', $allSize)));
                            }
                            @endphp

                            <tr>
                                <td><input type="checkbox" name="selected_emails[]" value="{{ $correspondence->email_address }}" class="emailCheckbox"></td>
                                <td>{{ ($correspondences->currentPage() - 1) * $correspondences->perPage() + $index + 1 }}</td>
                                <td><img src="{{ $correspondence->avatar }}" class="avatar-img"></td>
                                <td>
                                    <span class="badge bg-light p-2 text-dark">
                                        {{ ucwords(strtolower(str_replace('_', ' ', $correspondence->label))) }}
                                    </span>
                                </td>
{{--                                <td>{{ ucwords(strtolower(str_replace('_', ' ', $correspondence->label))) }}</td>--}}
                                <td>{{ $correspondence->name }}</td>
                                <td>{{ $correspondence->email_address }}</td>
                                <td>{{ $correspondence->last_updated_at }}</td>
                                <td>{{ $correspondence->totalmessage }}</td>
                                <td>{{ $attachmentSize }}</td>
                                <td>
                                    @if($correspondence->file_reference)
                                    <a href="{{route('contact.detail',['id' => $correspondence->id])}}" class="btn btn-danger btn-sm delete-link" data-id="{{ $correspondence->id }}">
                                        Details
                                    </a>
                                    @else
                                    No Data Fetch
                                    @endif
                                </td>
                            </tr>
                            @endforeach
                        </tbody>
                    </table>
                </div>
                <div id="paginationContainer">
                    @if(count($correspondences)>0)
                    {{ $correspondences->links('pagination::bootstrap-4') }}
                    @endif
                </div>
                <button type="submit" id="submitButton" class="btn btn-primary">Process Selected Emails</button>
            </form>
        </div>

        <!-- Chart View -->
        <div id="chartView" style="display: none;">
            <div class="chart-container" style="height: 400px;">
                <canvas id="storagePieChart"></canvas>
            </div>
            <div class="chart-container" style="height: 400px;">
                <canvas id="storagebarChart"></canvas>
            </div>
        </div>

    </div>
</div>

<div class="modal fade" id="confirmationModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">Choose Action</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div class="modal-body">How would you like to proceed?</div>
            <div class="modal-footer">
                <button id="AutomaticBtn" class="btn btn-success">Automatic</button>
                <button id="manualButton" class="btn btn-secondary">Manual</button>
            </div>
        </div>
    </div>
</div>

<script src="{{asset('assets/vendors/js/jquery.min.js')}}"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<script>
    $(document).ready(function() {

        let jobId = "{{ $jobId ?? '' }}";
        if (jobId) {
            startPollingProgress(jobId);
        }
        // Enhanced Select All functionality
        $('#selectAll').change(function() {
            const isChecked = this.checked;
            $('.emailCheckbox').prop('checked', isChecked).trigger('change');
        });

        // Individual checkbox functionality with improved logic
        $('.emailCheckbox').change(function() {
            const totalCheckboxes = $('.emailCheckbox').length;
            const checkedCount = $('.emailCheckbox:checked').length;

            // Update Select All checkbox state
            $('#selectAll').prop('checked', checkedCount === totalCheckboxes);

            // Toggle submit button visibility
            $('#submitButton').toggle(checkedCount > 0);
        });

        // Form submission handler with validation
        $('#emailForm').on('submit', function(e) {
            e.preventDefault();
            const checkedCount = $('.emailCheckbox:checked').length;
            if (checkedCount === 0) {
                alert('Please select at least one email to process');
                return false;
            }

            // Show processing notification
            showNotification('Processing selected emails...', 0);

            // Submit via AJAX
            $.ajax({
                url: $(this).attr('action'),
                method: 'POST',
                data: $(this).serialize(),
                success: function(response) {
                    if (response.job_id) {
                        startPollingProgress(response.job_id);
                        $("#confirmationModal").modal("hide");
                    } else {
                        alert('Error: Failed to queue emails.');
                        hideNotification();
                    }
                },
                error: function(error) {
                    console.error('Error:', error);
                    alert('An error occurred while queuing the emails.');
                    hideNotification();
                }
            });
        });

        // Automatic processing button handler
        $('#AutomaticBtn').on('click', function(event) {
            event.preventDefault();
            const selectedEmails = Array.from(new Set(JSON.parse($('#allEmails').val())));

            if (selectedEmails.length === 0) {
                alert('No emails available for processing!');
                return;
            }

            // Show processing notification
            showNotification('Processing all emails automatically...', 0);

            processEmails(selectedEmails);
        });

        // Manual processing button handler
        $('#manualButton').on('click', function() {
            const selectedEmails = [];
            $('.emailCheckbox:checked').each(function() {
                selectedEmails.push($(this).val());
            });

            if (selectedEmails.length === 0) {
                alert('Please select at least one email');
                return;
            }

            // Show processing notification
            showNotification('Processing selected emails manually...', 0);

            processEmails(selectedEmails);
        });

        // Initialize button states
        updateButtonStates();

        // Check for existing jobs on page load
        checkExistingJobs();
    });

    function showNotification(message, progress) {
        $('#notificationMessage').text(message);
        $('#notificationProgress').text(progress + '%');
        $('#notificationProgressBar').css('width', progress + '%');
        $('#globalProgressNotification').removeClass('d-none');
    }

    function updateNotification(progress, currentEmail) {
        $('#notificationProgress').text(progress + '%');
        $('#notificationProgressBar').css('width', progress + '%');
        if (currentEmail) {
            $('#notificationMessage').text('Processing: ' + currentEmail);
        }
    }

    function hideNotification() {
        $('#globalProgressNotification').addClass('d-none');
    }

    function checkExistingJobs() {
        const jobId = $('#currentJobId').val();
        if (jobId) {
            showNotification('Resuming email processing...', 0);
            startPollingProgress(jobId);
        }
    }

    function processEmails(emails) {
        $('#progressContainer').show();
        $('.fetching_header_loading').removeClass('d-none');
        $('.fetching_header').addClass('d-none');

        $.ajax({
            url: "{{ route('admin.emails.queue') }}",
            method: "POST",
            headers: {
                "X-CSRF-TOKEN": "{{ csrf_token() }}"
            },
            contentType: "application/json",
            data: JSON.stringify({
                selected_emails: emails
            }),
            success: function(data) {
                if (data && data.job_id) {
                    startPollingProgress(data.job_id);
                    $("#confirmationModal").modal("hide");
                } else {
                    alert('Error: ' + (data.message || 'Failed to queue emails.'));
                    resetProcessingState();
                    hideNotification();
                }
            },
            error: function(error) {
                console.error('Error:', error);
                alert('An error occurred while queuing the emails.');
                resetProcessingState();
                hideNotification();
            }
        });
    }

    function startPollingProgress(jobId) {
        if (!jobId) {
            console.error('No job ID provided for progress tracking');
            return;
        }

        const pollInterval = setInterval(function() {
            $.ajax({
                url: `/admin-panel/progress/${jobId}`,
                method: "GET",
                success: function(response) {
                    if (response.error) {
                        $('#progressText').text('Error: ' + response.error);
                        clearInterval(pollInterval);
                        hideNotification();
                        return;
                    }

                    const percentage = parseFloat(response.percentage).toFixed(2);

                    // Update progress bar
                    $('#progressBar').val(percentage);
                    $('#progressText').text(`Processing: ${response.email} (${percentage}%)`);

                    // Update notification
                    updateNotification(percentage, response.email);

                    if (percentage >= 100) {
                        clearInterval(pollInterval);
                        setTimeout(function() {
                            location.reload();
                        }, 2000);
                    }
                },
                error: function(err) {
                    console.error("Polling error:", err);
                    clearInterval(pollInterval);
                    resetProcessingState();
                    hideNotification();
                }
            });
        }, 3000); // Poll every 3 seconds
    }

    function resetProcessingState() {
        $('.fetching_header_loading').addClass('d-none');
        $('.fetching_header').removeClass('d-none');
        $('#progressContainer').hide();
    }

    function confirmDelete(event, element) {
        event.preventDefault();
        if (confirm('Are you sure you want to remove this email from the list?')) {
            const emailId = $(element).data('id');
            const url = `{{ route('admin.correspondences.destroy', ['id' => ':id']) }}`.replace(':id', emailId);

            const form = document.createElement('form');
            form.method = 'POST';
            form.action = url;

            const csrfToken = document.createElement('input');
            csrfToken.type = 'hidden';
            csrfToken.name = '_token';
            csrfToken.value = '{{ csrf_token() }}';
            form.appendChild(csrfToken);

            const methodField = document.createElement('input');
            methodField.type = 'hidden';
            methodField.name = '_method';
            methodField.value = 'DELETE';
            form.appendChild(methodField);

            document.body.appendChild(form);
            form.submit();
        }
    }

    function fetch_emails(platform) {
        const recipientsData = $("input[name='recipients_data']:checked").val();
        const route_url = platform == 1 ?
            "{{ route('fetch.gmail.emails') }}" :
            "{{ route('fetch.outlook.emails') }}";

        // Show processing notification
        showNotification('Fetching emails from server...', 0);

        $.ajax({
            url: route_url,
            type: "GET",
            data: {
                recipients_data: recipientsData
            },
            success: function(response) {
                console.log("Emails fetched successfully:", response);
                checkJobStatus();
            },
            error: function(xhr, status, error) {
                console.error("Error fetching emails:", error);
                hideNotification();
            }
        });
    }

    var jobStatusInterval;

    function checkJobStatus() {
        if (!jobStatusInterval) {
            jobStatusInterval = setInterval(function() {
                $.ajax({
                    url: "{{ route('current.job.status') }}",
                    type: "GET",
                    dataType: "json",
                    success: function(response) {
                        console.log("Job status:", response.status);

                        if (response.status === "done") {
                            $(".fetching_header").removeClass("d-none");
                            $(".fetching_header_loading").addClass("d-none");
                            clearInterval(jobStatusInterval);
                            hideNotification();
                            location.reload();
                        } else if (response.status === "running" || response.status === "start") {
                            $(".fetching_header").addClass("d-none");
                            $(".fetching_header_loading").removeClass("d-none");
                            showNotification('Fetching emails from server...', 50);
                        }
                    },
                    error: function(xhr, status, error) {
                        console.error("Error checking job status:", error);
                        hideNotification();
                    }
                });
            }, 3000);
        }
    }

    function updateButtonStates() {
        const checkedCount = $('.emailCheckbox:checked').length;
        $('#submitButton').toggle(checkedCount > 0);
        $('#selectAll').prop('checked', checkedCount === $('.emailCheckbox').length);
    }

    // Start Chart Work
    $('#showTableBtn').click(function() {
        $('#tableView').show();
        $('#chartView').hide();
        $(this).addClass('active');
        $('#showChartBtn').removeClass('active');
    });

    $('#showChartBtn').click(function() {
        $('#tableView').hide();
        $('#chartView').show();
        $(this).addClass('active');
        $('#showTableBtn').removeClass('active');
        renderChart();
        renderBarChart();
    });

    function convertToBytes(value, unit) {
        const unitUpper = unit.toUpperCase();
        switch (unitUpper) {
            case 'GB':
                return value * 1024 * 1024 * 1024;
            case 'MB':
                return value * 1024 * 1024;
            case 'KB':
                return value * 1024;
            case 'B':
                return value;
            default:
                return 0; // unknown unit
        }
    }
    // Render the pie chart
    function renderChart() {
        const ctx = document.getElementById('storagePieChart').getContext('2d');

        // Prepare data from PHP
        const chartData = {
            labels: @json($chartData['labels']),
            datasets: [{
                data: @json($chartData['data']),
                backgroundColor: [
                    '#FF6384', '#36A2EB', '#FFCE56', '#4BC0C0', '#9966FF',
                    '#FF9F40', '#8AC24A', '#F06292', '#7986CB', '#A1887F'
                ],
                borderWidth: 1
            }]
        };

        new Chart(ctx, {
            type: 'pie',
            data: chartData,
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    tooltip: {
                        callbacks: {
                            label: function(context) {
                                const label = context.label || '';
                                const valueWithUnit = context.raw || '0 B';

                                const [valueStr, unit] = valueWithUnit.split(' ');
                                const value = parseFloat(valueStr);

                                const sizeInBytes = convertToBytes(value, unit);

                                const totalBytes = context.dataset.data.reduce((total, current) => {
                                    const [currentValueStr, currentUnit] = current.split(' ');
                                    const currentValue = parseFloat(currentValueStr);
                                    return total + convertToBytes(currentValue, currentUnit);
                                }, 0);

                                const percentage = totalBytes > 0 ? Math.round((sizeInBytes / totalBytes) * 100) : 0;

                                return `${label}: ${valueWithUnit} (${percentage}%)`;
                            }
                        }
                    },
                    legend: {
                        position: 'right',
                    },
                    title: {
                        display: true,
                        text: 'Top 10 Contacts by Storage Size',
                        font: {
                            size: 16
                        }
                    }
                }
            }
        });
    }

    function renderBarChart() {
        const ctx = document.getElementById('storagebarChart').getContext('2d');

        // Prepare data from PHP
        const chartData = {
            labels: @json($chartBarData['labels']),
            datasets: [{
                data: @json($chartBarData['data']),
                backgroundColor: [
                    '#FF6384', '#36A2EB', '#FFCE56', '#4BC0C0', '#9966FF',
                    '#FF9F40', '#8AC24A', '#F06292', '#7986CB', '#A1887F'
                ],
                borderWidth: 1
            }]
        };

        new Chart(ctx, {
            type: 'bar',
            data: chartData,
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    tooltip: {
                        callbacks: {
                            label: function(context) {
                                const label = context.label || '';
                                const value = context.raw || 0;
                                const total = context.dataset.data.reduce((a, b) => a + b, 0);
                                const percentage = Math.round((value / total) * 100);
                                return `${label}: ${value} (${percentage}%)`;
                            }
                        }
                    },
                    legend: {
                        position: 'right',
                    },
                    title: {
                        display: true,
                        text: 'Top 10 most active contacts',
                        font: {
                            size: 16
                        }
                    }
                }
            }
        });
    }

    // Render chart immediately if URL has ?view=chart
    if (window.location.search.includes('view=chart')) {
        $('#showChartBtn').click();
    }
    // End Chart Work
</script>

@endsection