@extends('layouts.demo10.base')

@php
    $approvalCount = count($data ?? []);
    $approvalChangeDetails = collect($data ?? [])->mapWithKeys(function ($item) {
        $change = $item['changes'] ?? [];
        $instanceId = $item['step']->workflow_instance_id ?? '';
        $rowUuid = $change['row_uuid'] ?? '';
        $detailKey = $instanceId . '_' . $rowUuid;

        return [
            $detailKey => [
                'workflow_instance_id' => $instanceId,
                'row_uuid' => $rowUuid,
                'table_name' => $change['table_name'] ?? 'submissions',
                'row_key' => $change['row_key'] ?? '__id',
                'column_labels' => $change['column_labels'] ?? [],
                'old_data' => $change['old_data'] ?? [],
                'new_data' => $change['new_data'] ?? [],
            ],
        ];
    });
@endphp

@section('content')
<style>
    .project-settings-shell {
        display: grid;
        gap: 1.6rem;
        padding-bottom: 1.2rem;
        width: 100%;
        max-width: 100%;
    }

    .project-settings-topbar {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 1rem;
        flex-wrap: wrap;
    }

    .project-settings-heading {
        display: grid;
        gap: 0.2rem;
    }

    .project-settings-title {
        margin: 0;
        color: #18181b;
        font-size: 2.1rem;
        font-weight: 600;
        line-height: 1.04;
        letter-spacing: -0.03em;
    }

    .project-settings-breadcrumb {
        color: #8d8d8d;
        font-size: 0.95rem;
        font-weight: 400;
    }

    .project-settings-card {
        width: 100%;
        overflow: visible;
        border: 1px solid #e8e2da;
        border-radius: 16px;
        background: #fff;
        box-shadow: 0 12px 32px rgba(15, 23, 42, 0.05);
    }

    .project-settings-card-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding: 1rem 1.2rem;
        border-bottom: 1px solid #ede7df;
        flex-wrap: wrap;
    }

    .project-settings-card-title {
        margin: 0;
        color: #1d1d1f;
        font-size: 1.08rem;
        font-weight: 500;
    }

    .approval-card-head-meta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.18rem 0.5rem;
        border-radius: 999px;
        background: #eef2ff;
        color: #6270d9;
        font-size: 0.72rem;
        font-weight: 500;
    }

    .project-settings-view-data-scroll {
        display: block;
        width: 100%;
        max-width: 100%;
        overflow-x: auto;
        overflow-y: hidden;
        min-height: 280px;
        padding-bottom: 0.15rem;
        -webkit-overflow-scrolling: touch;
        scrollbar-gutter: stable both-edges;
    }

    .project-settings-view-data-scroll .dataTables_wrapper,
    #approvalsTable_wrapper {
        display: inline-block;
        width: max-content !important;
        min-width: 100% !important;
        vertical-align: top;
    }

    #approvalsTable {
        min-width: 100% !important;
        width: max-content !important;
        table-layout: auto !important;
    }

    .project-settings-card .dataTables_wrapper {
        width: max-content !important;
        min-width: 100% !important;
        overflow: visible;
    }

    .project-settings-view-data-footer {
        display: flex;
        align-items: center;
        justify-content: flex-start;
        gap: 1rem;
        flex-wrap: wrap;
        min-width: 100%;
        padding: 0.95rem 1rem 1rem;
    }

    .project-settings-view-data-footer .dataTables_length,
    .project-settings-view-data-footer .dataTables_info {
        margin-right: 0;
    }

    .project-settings-view-data-footer .dataTables_paginate {
        margin-left: auto;
    }

    .project-settings-card .dataTables_filter {
        display: none !important;
    }

    .project-settings-card .dataTables_length,
    .project-settings-card .dataTables_info,
    .project-settings-card .dataTables_paginate {
        padding-inline: 0.85rem;
    }

    .project-settings-card .dataTables_length {
        color: var(--secondary-foreground) !important;
        font-size: 0.875rem !important;
        padding-top: 0.95rem !important;
        padding-bottom: 1rem !important;
    }

    .project-settings-card .dataTables_length select {
        border: 1px solid var(--border) !important;
        border-radius: 0.375rem !important;
        padding: 0.25rem 2rem 0.25rem 0.5rem !important;
        background-color: transparent !important;
        color: var(--foreground) !important;
        margin: 0 0.5rem !important;
    }

    .project-settings-card .dataTables_info {
        color: var(--secondary-foreground) !important;
        font-size: 0.875rem !important;
        padding-top: 0.95rem !important;
        padding-bottom: 1rem !important;
    }

    .project-settings-card .dataTables_paginate {
        padding-top: 0.95rem !important;
        padding-bottom: 1rem !important;
    }

    .project-settings-card .dataTables_paginate .paginate_button {
        border: none !important;
        background: none !important;
        padding: 0.5rem 0.75rem !important;
        margin: 0 2px !important;
        border-radius: 0.375rem !important;
        color: var(--secondary-foreground) !important;
        cursor: pointer !important;
    }

    .project-settings-card .dataTables_paginate .paginate_button.current {
        background-color: var(--primary) !important;
        color: white !important;
    }

    @media (min-width: 1200px) {
        .project-settings-shell {
            width: min(1500px, calc(100vw - var(--sidebar-width) - 72px));
            max-width: min(1500px, calc(100vw - var(--sidebar-width) - 72px));
        }
    }

    #approvalsTable,
    #approvalsTable th,
    #approvalsTable td {
        border: 1px solid #e2e8f0 !important;
        border-collapse: collapse !important;
    }

    #approvalsTable thead th {
        background: #fafafa !important;
        color: #6b7280 !important;
        font-size: 0.74rem !important;
        font-weight: 500 !important;
        text-transform: none;
        white-space: nowrap;
        padding: 12px 14px !important;
    }

    #approvalsTable td {
        padding: 12px 16px !important;
        vertical-align: middle;
        white-space: nowrap;
        font-size: 0.8rem;
        color: #363636;
    }

    #approvalsTable tbody tr:hover {
        background-color: #f8fafc !important;
    }

    .approval-row-id {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.18rem 0.45rem;
        border-radius: 4px;
        background: #eef2ff;
        color: #6270d9;
        font-size: 0.72rem;
        font-weight: 500;
    }

    .approval-cell-updated {
        background: #eef5ff;
        color: #2158c9;
        font-weight: 500;
    }

    .approval-form {
        display: flex;
        align-items: center;
        gap: 0.45rem;
        flex-wrap: wrap;
    }

    .project-settings-view-data-btn {
        min-height: 40px;
        padding-inline: 1rem !important;
        border-radius: 10px !important;
        font-size: 0.88rem !important;
        font-weight: 500;
        box-shadow: none !important;
    }

    .project-settings-view-data-btn.is-secondary {
        border: 1px solid #dfe4ea !important;
        background: #fff !important;
        color: #7c8798 !important;
    }

    .project-settings-view-data-btn.is-primary {
        background: #2f6cf6 !important;
        border-color: #2f6cf6 !important;
        color: #fff !important;
    }

    .approval-modal {
        position: fixed;
        inset: 0;
        z-index: 1200;
        display: none;
        align-items: center;
        justify-content: center;
        padding: 1.5rem;
        background: rgba(15, 23, 42, 0.45);
    }

    .approval-modal.is-open {
        display: flex;
    }

    .approval-modal-dialog {
        width: min(920px, 100%);
        max-height: calc(100vh - 3rem);
        overflow: hidden;
        border-radius: 18px;
        background: #fff;
        box-shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
        display: flex;
        flex-direction: column;
    }

    .approval-modal-header,
    .approval-modal-footer {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding: 1rem 1.25rem;
        border-bottom: 1px solid #e5e7eb;
    }

    .approval-modal-footer {
        border-top: 1px solid #e5e7eb;
        border-bottom: 0;
        justify-content: flex-end;
    }

    .approval-modal-title {
        margin: 0;
        font-size: 1.1rem;
        font-weight: 600;
        color: #111827;
    }

    .approval-modal-close {
        border: 0;
        background: transparent;
        color: #6b7280;
        font-size: 1.5rem;
        line-height: 1;
        cursor: pointer;
    }

    .approval-modal-body {
        padding: 1.25rem;
        overflow: auto;
        display: grid;
        gap: 1rem;
    }

    .approval-modal-meta {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 0.75rem;
    }

    .approval-modal-meta-card {
        padding: 0.85rem 0.95rem;
        border: 1px solid #e5e7eb;
        border-radius: 12px;
        background: #f8fafc;
    }

    .approval-modal-meta-label {
        display: block;
        margin-bottom: 0.3rem;
        font-size: 0.72rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        color: #64748b;
    }

    .approval-modal-meta-value {
        color: #111827;
        font-size: 0.9rem;
        font-weight: 500;
        word-break: break-word;
    }

    .approval-modal-table-wrap {
        overflow-x: auto;
        border: 1px solid #e5e7eb;
        border-radius: 14px;
    }

    .approval-modal-table {
        width: 100%;
        border-collapse: collapse;
        min-width: 560px;
    }

    .approval-modal-table th,
    .approval-modal-table td {
        padding: 0.85rem 1rem;
        border-bottom: 1px solid #e5e7eb;
        text-align: left;
        vertical-align: top;
        white-space: normal;
    }

    .approval-modal-table th {
        background: #f8fafc;
        color: #475569;
        font-size: 0.78rem;
        font-weight: 600;
    }

    .approval-modal-field-label {
        display: block;
        margin-top: 0.15rem;
        font-size: 0.72rem;
        color: #64748b;
    }

    .approval-modal-table tbody tr:last-child td {
        border-bottom: 0;
    }

    .approval-modal-old-value {
        color: #b42318;
        font-weight: 500;
    }

    .approval-modal-new-value {
        color: #175cd3;
        font-weight: 600;
    }

    .approval-empty {
        padding: 3rem 1.5rem;
        text-align: center;
        color: #6b7280;
    }

    .approval-empty-icon {
        font-size: 2rem;
        color: #a2acbb;
        margin-bottom: 0.75rem;
        display: block;
    }
</style>

<div class="project-settings-shell">
    <div class="project-settings-topbar">
        <div class="project-settings-heading">
            <h1 class="project-settings-title">Pending Approvals</h1>
            <div class="project-settings-breadcrumb">Project/Workflow/Approvals</div>
        </div>
    </div>

    @if(!empty($data))
    <div class="project-settings-card">
        <div class="project-settings-card-head">
            <h2 class="project-settings-card-title">Approval Queue</h2>
            <div class="approval-card-head-meta">{{ $approvalCount }} Pending</div>
        </div>
        <div class="kt-card-table">
            <div class="project-settings-view-data-scroll">
                <table id="approvalsTable" class="kt-table kt-table-border w-full">
                    <thead>
                        <tr>
                            <th>UUID</th>
                            {{-- @if(count($data) > 0)
                                @foreach(array_keys((array) $data[0]['submission']) as $col)
                                    <th>{{ $col }}</th>
                                @endforeach
                            @endif --}}
                            <th>Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach($data as $item)
                        @php
                            $submission = (array) $item['submission'];
                            $changeItem = $item['changes'] ?? [];
                            $changes = $changeItem['new_data'] ?? [];
                            $rowUuid = $changeItem['row_uuid'] ?? '';
                            $instanceId = $item['step']->workflow_instance_id;
                            $detailKey = $instanceId . '_' . $rowUuid;
                        @endphp
                        <tr id="approval-row-{{ $instanceId }}">
                            <td><span class="approval-row-id">{{ $rowUuid }}</span></td>
                            {{-- @foreach($submission as $col => $value)
                            @php
                                $updatedValue = $changes[$col] ?? $value;
                                $highlight = array_key_exists($col, $changes) ? 'approval-cell-updated' : '';
                                $displayValue = filled((string) $updatedValue) ? $updatedValue : '-';
                            @endphp
                            <td class="{{ $highlight }}">{{ $displayValue }}</td>
                            @endforeach --}}
                            <td>
                                <form action="{{ route('approvals.action') }}" method="POST" class="approval-form">
                                    @csrf
                                    <input type="hidden" name="workflow_instance_id" value="{{ $instanceId }}">

                                    <button type="button"
                                            class="kt-btn project-settings-view-data-btn is-secondary view-approval-btn"
                                            data-detail-key="{{ $detailKey }}"
                                            data-instance-id="{{ $instanceId }}"
                                            data-row-uuid="{{ $rowUuid }}">
                                        View
                                    </button>

                                    @if($workflowDetails->is_approved)
                                    <button type="submit"
                                            name="action"
                                            value="approved"
                                            class="kt-btn project-settings-view-data-btn is-primary approve-btn"
                                            data-instance-id="{{ $instanceId }}"
                                            data-row-uuid="{{ $rowUuid }}"
                                            onclick="AuditTracker.track({
                                                event_type:  'click',
                                                module:      'Approvals',
                                                section:     'Approvals',
                                                page:        'Approval List',
                                                action:      'Click Approve Button',
                                                target_type: 'App\\Models\\WorkflowInstance',
                                                target_id:   {{ $instanceId }},
                                                meta:        { row_uuid: '{{ $rowUuid }}' }
                                            })">
                                        Approve
                                    </button>
                                    @endif

                                    @if($workflowDetails->is_rejected)
                                    <button type="submit"
                                            name="action"
                                            value="rejected"
                                            class="kt-btn project-settings-view-data-btn is-secondary reject-btn"
                                            data-instance-id="{{ $instanceId }}"
                                            data-row-uuid="{{ $rowUuid }}"
                                            onclick="AuditTracker.track({
                                                event_type:  'click',
                                                module:      'Approvals',
                                                section:     'Approvals',
                                                page:        'Approval List',
                                                action:      'Click Reject Button',
                                                target_type: 'App\\Models\\WorkflowInstance',
                                                target_id:   {{ $instanceId }},
                                                meta:        { row_uuid: '{{ $rowUuid }}' }
                                            })">
                                        Reject
                                    </button>
                                    @endif
                                </form>
                            </td>
                        </tr>
                        @endforeach
                    </tbody>
                </table>
            </div>
        </div>
    </div>
    @else
    <div class="project-settings-card">
        <div class="approval-empty">
            <i class="ki-filled ki-information-2 approval-empty-icon"></i>
            There are no pending approvals for this instance.
        </div>
    </div>
    @endif
</div>

<div class="approval-modal" id="approvalChangesModal" aria-hidden="true">
    <div class="approval-modal-dialog" role="dialog" aria-modal="true" aria-labelledby="approvalChangesModalTitle">
        <div class="approval-modal-header">
            <h3 class="approval-modal-title" id="approvalChangesModalTitle">Approval Change Details</h3>
            <button type="button" class="approval-modal-close" id="approvalChangesModalClose" aria-label="Close">&times;</button>
        </div>
        <div class="approval-modal-body">
            <div class="approval-modal-meta">
                <div class="approval-modal-meta-card">
                    <span class="approval-modal-meta-label">Workflow Instance</span>
                    <span class="approval-modal-meta-value" id="approvalModalInstanceId">-</span>
                </div>
                <div class="approval-modal-meta-card">
                    <span class="approval-modal-meta-label">Row UUID</span>
                    <span class="approval-modal-meta-value" id="approvalModalRowUuid">-</span>
                </div>
                <div class="approval-modal-meta-card">
                    <span class="approval-modal-meta-label">Table</span>
                    <span class="approval-modal-meta-value" id="approvalModalTableName">-</span>
                </div>
                <div class="approval-modal-meta-card">
                    <span class="approval-modal-meta-label">Row Key</span>
                    <span class="approval-modal-meta-value" id="approvalModalRowKey">-</span>
                </div>
            </div>

            <div class="approval-modal-table-wrap">
                <table class="approval-modal-table">
                    <thead>
                        <tr>
                            <th>Field</th>
                            <th>Old Value</th>
                            <th>New Value</th>
                        </tr>
                    </thead>
                    <tbody id="approvalChangesTableBody">
                        <tr>
                            <td colspan="3">No change details available.</td>
                        </tr>
                    </tbody>
                </table>
            </div>
        </div>
        <div class="approval-modal-footer">
            <button type="button" class="kt-btn project-settings-view-data-btn is-secondary" id="approvalChangesModalFooterClose">Close</button>
        </div>
    </div>
</div>
@endsection

@section('scripts')
<script>
$(document).ready(function () {
    const MOD = 'Approvals';
    const SEC = 'Approvals';
    const PAGE = 'Approval List';
    const $table = $('#approvalsTable');
    const $changesModal = $('#approvalChangesModal');
    const approvalChangeDetails = @json($approvalChangeDetails);

    if (!$table.length) {
        return;
    }

    function escapeHtml(value) {
        return $('<div>').text(value ?? '').html();
    }

    function formatCellValue(value) {
        if (value === null || value === undefined || value === '') {
            return '-';
        }

        if (typeof value === 'object') {
            return JSON.stringify(value);
        }

        return String(value);
    }

    function renderApprovalChanges(detail) {
        const oldData = detail.old_data || {};
        const newData = detail.new_data || {};
        const columnLabels = detail.column_labels || {};
        const fields = Array.from(new Set([...Object.keys(oldData), ...Object.keys(newData)]));

        $('#approvalModalInstanceId').text(detail.workflow_instance_id || '-');
        $('#approvalModalRowUuid').text(detail.row_uuid || '-');
        $('#approvalModalTableName').text(detail.table_name || '-');
        $('#approvalModalRowKey').text(detail.row_key || '-');

        if (!fields.length) {
            $('#approvalChangesTableBody').html('<tr><td colspan="3">No change details available.</td></tr>');
            return;
        }

        const rowsHtml = fields.map(function (field) {
            const label = columnLabels[field];
            const fieldHtml = label && String(label) !== String(field)
                ? `${escapeHtml(field)}<span class="approval-modal-field-label">${escapeHtml(label)}</span>`
                : `${escapeHtml(field)}`;

            return `
                <tr>
                    <td>${fieldHtml}</td>
                    <td class="approval-modal-old-value">${escapeHtml(formatCellValue(oldData[field]))}</td>
                    <td class="approval-modal-new-value">${escapeHtml(formatCellValue(newData[field]))}</td>
                </tr>
            `;
        }).join('');

        $('#approvalChangesTableBody').html(rowsHtml);
    }

    function openApprovalModal(detail) {
        renderApprovalChanges(detail);
        $changesModal.addClass('is-open').attr('aria-hidden', 'false');
        $('body').css('overflow', 'hidden');
    }

    function closeApprovalModal() {
        $changesModal.removeClass('is-open').attr('aria-hidden', 'true');
        $('body').css('overflow', '');
    }

    const table = $table.DataTable({
        scrollX: false,
        paging: true,
        searching: true,
        autoWidth: false,
        lengthChange: true,
        dom: 'rt<"project-settings-view-data-footer"lip>',
        language: {
            lengthMenu: 'Show _MENU_',
            search: '',
            searchPlaceholder: 'Search approvals...',
            info: 'Showing _START_ to _END_ of _TOTAL_ entries',
        },
        initComplete: function () {
            syncApprovalTableWidth();
        },
        drawCallback: function () {
            syncApprovalTableWidth();
        }
    });

    function syncApprovalTableWidth() {
        const $wrapper = $table.closest('.dataTables_wrapper');

        $table.css({
            width: 'max-content',
            minWidth: '100%',
        });

        if ($wrapper.length) {
            $wrapper.css({
                width: 'max-content',
                minWidth: '100%',
            });
        }
    }

    $('#approvalsTable_filter input').on('keyup', function () {
        AuditTracker.debouncedSearch('approval_search', MOD, SEC, PAGE, $(this).val());
    });

    table.on('page.dt', function () {
        AuditTracker.paginate(MOD, SEC, PAGE, table.page.info().page + 1);
    });

    table.on('length.dt', function (e, settings, len) {
        AuditTracker.track({
            event_type: 'click',
            module: MOD,
            section: SEC,
            page: PAGE,
            action: 'Change Page Length',
            meta: { per_page: len },
        });
    });

    $(document).on('mouseenter', '.approval-cell-updated', function () {
        const $row = $(this).closest('tr');
        const instanceId = $row.attr('id')?.replace('approval-row-', '');

        if (!instanceId || $(this).data('tracked')) {
            return;
        }

        $(this).data('tracked', true);

        AuditTracker.track({
            event_type: 'data_view',
            module: MOD,
            section: SEC,
            page: PAGE,
            action: 'View Changed Field',
            target_type: 'App\\Models\\WorkflowInstance',
            target_id: instanceId,
            meta: { column: $(this).index() },
        });
    });

    $(document).on('click', '.view-approval-btn', function () {
        const detailKey = $(this).data('detail-key');
        const detail = approvalChangeDetails[detailKey];

        if (!detail) {
            return;
        }

        AuditTracker.track({
            event_type: 'click',
            module: MOD,
            section: SEC,
            page: PAGE,
            action: 'Click View Approval Changes',
            target_type: 'App\\Models\\WorkflowInstance',
            target_id: detail.workflow_instance_id,
            meta: { row_uuid: detail.row_uuid },
        });

        openApprovalModal(detail);
    });

    $('#approvalChangesModalClose, #approvalChangesModalFooterClose').on('click', function () {
        closeApprovalModal();
    });

    $changesModal.on('click', function (event) {
        if ($(event.target).is($changesModal)) {
            closeApprovalModal();
        }
    });

    $(document).on('keydown', function (event) {
        if (event.key === 'Escape' && $changesModal.hasClass('is-open')) {
            closeApprovalModal();
        }
    });

    syncApprovalTableWidth();
});
</script>
@endsection