@extends('layouts.app')
@section('content')
    <div class="contents">
        <div class="container-fluid">
            <div class="row">
                <div class="col-lg-12">
                    <div class="breadcrumb-main">
                        <div class="w-100">
                            <h4 class="text-capitalize breadcrumb-title">{{ $pageTitle }}</h4>
                            <span class="text-capitalize breadcrumb-sub-title"><small>{{ $pageDescription }}</small></span>
                        </div>
                    </div>
                </div>
            </div>
            <div class="row">
                <div class="col-lg-12">
                    <div class="userDatatable global-shadow border p-30 bg-white radius-xl w-100 mb-30">
                        <div class="d-flex justify-content-between align-items-center mb-20 flex-wrap" style="gap: 10px;">
                            <div class="d-flex align-items-center flex-wrap" style="gap: 10px;">
                                <button type="button" id="contract-filter-toggle"
                                    class="btn btn-sm px-15 btn-outline-primary">
                                    <i class="las la-filter fs-16"></i> Filters
                                </button>
                                <a href="#" id="contract-export" class="btn btn-sm px-15 btn-outline-primary"><i
                                        class="las la-file-export fs-16"></i>Export to Excel</a>
                            </div>
                            <div class="d-flex align-items-center flex-wrap" style="gap: 10px;">
                                <span class="fs-14 color-light">
                                    {{ $contract->count() }} contract(s) found
                                    @if (!$hasDateFilter)
                                        (showing last 30 days: {{ $filterDateFrom }} to {{ $filterDateTo }})
                                    @endif
                                </span>
                                <select id="contract-filter-purity" class="form-control w-auto">
                                    <option value="">All Purities</option>
                                    @foreach ($purities as $purity)
                                        <option value="{{ $purity }}">{{ $purity }}</option>
                                    @endforeach
                                </select>
                                <input type="text" id="contract-search" class="form-control w-auto"
                                    placeholder="Search contracts...">
                            </div>
                        </div>
                        <form method="GET" action="{{ route('contract.list') }}" id="contract-filter-form" class="mb-20"
                            style="{{ $hasDateFilter || $hasco_id ? '' : 'display:none;' }}">
                            <div class="row g-2 align-items-end">
                                <div class="col-md-3">
                                    <label class="fs-13 color-light mb-1 d-block">Date From</label>
                                    <input type="date" name="date_from" class="form-control"
                                        value="{{ $filterDateFrom }}">
                                </div>
                                <div class="col-md-3">
                                    <label class="fs-13 color-light mb-1 d-block">Date To</label>
                                    <input type="date" name="date_to" class="form-control" value="{{ $filterDateTo }}">
                                </div>
                                <div class="col-md-3">
                                    <label class="fs-13 color-light mb-1 d-block">Current Owner ID</label>
                                    <input type="text" name="co_id" class="form-control" value="{{ $co_id }}">
                                </div>
                                <div class="col-md-2 d-flex" style="gap: 8px;">
                                    <button type="submit" class="btn btn-sm px-15 btn-primary">Filter</button>
                                    <a href="{{ route('contract.list') }}"
                                        class="btn btn-sm px-15 btn-outline-secondary">Reset</a>
                                </div>
                            </div>
                        </form>
                        <div class="table-responsive contract-table-scroll">
                            <table class="table mb-0 table-borderless">
                                <thead>
                                    <tr class="userDatatable-header">
                                        <th><span class="userDatatable-title">Contract No</span></th>
                                        <th><span class="userDatatable-title">Inventory Serial No</span></th>
                                        <th><span class="userDatatable-title">Weight (g)</span></th>
                                        <th><span class="userDatatable-title">Purity</span></th>
                                        <th><span class="userDatatable-title">CO ID</span></th>
                                        <th><span class="userDatatable-title">CO Last Updated</span></th>
                                        <th><span class="userDatatable-title">PO 1 ID</span></th>
                                        <th><span class="userDatatable-title">PO 1 Last Updated</span></th>
                                        <th><span class="userDatatable-title">PO 2 ID</span></th>
                                        <th><span class="userDatatable-title">PO 2 Last Update</span></th>
                                        <th><span class="userDatatable-title">Created Datetime</span></th>
                                        <th><span class="userDatatable-title">Updated Datetime</span></th>
                                    </tr>
                                </thead>
                                <tbody id="contract-table-body">
                                    @forelse ($contract as $item)
                                        <tr class="contract-row" data-purity="{{ $item->purity }}">
                                            <td>
                                                <div class="userDatatable-content">{{ $item->contract_number }}</div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">{{ $item->inventory_serial_number }}</div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">{{ $item->weight_gram }}</div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">{{ $item->purity }}</div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">{{ $item->current_owner_id_no }}</div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">
                                                    {{ $item->current_owner_updated_at ? \Carbon\Carbon::parse($item->current_owner_updated_at)->format('Y-m-d H:i:s') : '-' }}
                                                </div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">{{ $item->prev_owner_1_id_no ?? '-' }}</div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">
                                                    {{ $item->prev_owner_1_updated_at ? \Carbon\Carbon::parse($item->prev_owner_1_updated_at)->format('Y-m-d H:i:s') : '-' }}
                                                </div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">{{ $item->prev_owner_2_id_no ?? '-' }}</div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">
                                                    {{ $item->prev_owner_2_updated_at ? \Carbon\Carbon::parse($item->prev_owner_2_updated_at)->format('Y-m-d H:i:s') : '-' }}
                                                </div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">
                                                    {{ $item->created_at ? \Carbon\Carbon::parse($item->created_at)->format('Y-m-d H:i:s') : '-' }}
                                                </div>
                                            </td>
                                            <td>
                                                <div class="userDatatable-content">
                                                    {{ $item->updated_at ? \Carbon\Carbon::parse($item->updated_at)->format('Y-m-d H:i:s') : '-' }}
                                                </div>
                                            </td>
                                        </tr>
                                    @empty
                                        <tr>
                                            <td colspan="12" class="text-center">No contracts found.</td>
                                        </tr>
                                    @endforelse
                                </tbody>
                            </table>
                            <p id="contract-no-results" class="text-center mt-20 mb-0" style="display:none;">No matching
                                contracts found.</p>
                        </div>
                        <div
                            class="contract-pagination-bar d-flex align-items-center justify-content-between flex-wrap mt-20 pt-20">
                            <p class="contract-pagination-info mb-0" id="contract-info"></p>
                            <nav aria-label="Contract pagination">
                                <ul class="contract-pagination mb-0" id="contract-pagination"></ul>
                            </nav>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
@endsection

@section('styles')
    <style>
        .contract-table-scroll {
            max-height: 520px;
            overflow-y: auto;
        }

        .contract-table-scroll thead th {
            position: sticky;
            top: 0;
            background-color: #fff;
            z-index: 1;
        }

        .contract-pagination-bar {
            border-top: 1px solid #eef1f5;
        }

        .contract-pagination-info {
            font-size: 13px;
            color: #7e8299;
        }

        .contract-pagination {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 6px;
        }

        .contract-pagination__item {
            display: inline-flex;
        }

        .contract-pagination__link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 34px;
            height: 34px;
            padding: 0 8px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 500;
            color: #5a5f7d;
            background-color: #f4f5f7;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.15s ease-in-out;
            user-select: none;
        }

        .contract-pagination__link:hover:not(.disabled):not(.active) {
            background-color: #e4e7ed;
            color: #2c2e3d;
        }

        .contract-pagination__link.active {
            background-color: #19bdb4;
            color: #fff;
            box-shadow: 0 4px 10px rgba(25, 189, 180, 0.35);
        }

        .contract-pagination__link.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }

        .contract-pagination__ellipsis {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 34px;
            height: 34px;
            color: #b4b7c9;
            font-weight: 600;
        }
    </style>
@endsection

@section('scripts')
    <script>
        $(function() {
            var PAGE_SIZE = 10;
            var currentPage = 1;

            var $rows = $('#contract-table-body tr.contract-row');
            var $search = $('#contract-search');
            var $purityFilter = $('#contract-filter-purity');
            var $noResults = $('#contract-no-results');
            var $filterForm = $('#contract-filter-form');
            var $filterToggle = $('#contract-filter-toggle');
            var $export = $('#contract-export');
            var $pagination = $('#contract-pagination');
            var $info = $('#contract-info');

            $filterToggle.on('click', function() {
                $filterForm.slideToggle(150);
            });

            $export.on('click', function(e) {
                e.preventDefault();

                var params = new URLSearchParams();
                var dateFrom = $filterForm.find('[name="date_from"]').val();
                var dateTo = $filterForm.find('[name="date_to"]').val();
                var coId = $filterForm.find('[name="co_id"]').val();
                var purity = $purityFilter.val();
                var search = $search.val().trim();

                if (dateFrom) params.set('date_from', dateFrom);
                if (dateTo) params.set('date_to', dateTo);
                if (coId) params.set('co_id', coId);
                if (purity) params.set('purity', purity);
                if (search) params.set('search', search);

                window.location.href = '{{ route('contract.list.export') }}?' + params.toString();
            });

            function getMatchingRows() {
                var value = $search.val().toLowerCase().trim();
                var purity = $purityFilter.val();

                return $rows.filter(function() {
                    var matchesSearch = $(this).text().toLowerCase().indexOf(value) > -1;
                    var matchesPurity = !purity || $(this).data('purity') == purity;

                    return matchesSearch && matchesPurity;
                });
            }

            // Builds a windowed page list, e.g. [1, '...', 4, 5, 6, '...', 11]
            function buildPageList(current, total) {
                var pages = [];
                var windowSize = 1;

                for (var page = 1; page <= total; page++) {
                    var isEdge = page === 1 || page === total;
                    var isNearCurrent = Math.abs(page - current) <= windowSize;

                    if (isEdge || isNearCurrent) {
                        pages.push(page);
                    } else if (pages[pages.length - 1] !== '...') {
                        pages.push('...');
                    }
                }

                return pages;
            }

            function pageItem(label, page, isActive, isDisabled) {
                var classes = 'contract-pagination__link' + (isActive ? ' active' : '') + (isDisabled ?
                    ' disabled' : '');
                return $('<li class="contract-pagination__item"></li>').append(
                    $('<a href="" class="' + classes + '">' + label + '</a>')
                    .on('click', function(e) {
                        e.preventDefault();
                        if (!isDisabled && page !== currentPage) {
                            currentPage = page;
                            render();
                        }
                    })
                );
            }

            function renderPagination(totalPages) {
                $pagination.empty();

                if (totalPages <= 1) {
                    return;
                }

                $pagination.append(pageItem('&lsaquo;', currentPage - 1, false, currentPage === 1));

                buildPageList(currentPage, totalPages).forEach(function(page) {
                    if (page === '...') {
                        $pagination.append(
                            '<li class="contract-pagination__item"><span class="contract-pagination__ellipsis">&hellip;</span></li>'
                        );
                    } else {
                        $pagination.append(pageItem(page, page, page === currentPage, false));
                    }
                });

                $pagination.append(pageItem('&rsaquo;', currentPage + 1, false, currentPage === totalPages));
            }

            function render() {
                var $matching = getMatchingRows();
                var total = $matching.length;
                var totalPages = Math.max(1, Math.ceil(total / PAGE_SIZE));
                currentPage = Math.min(currentPage, totalPages);

                var start = total === 0 ? 0 : (currentPage - 1) * PAGE_SIZE + 1;
                var end = Math.min(currentPage * PAGE_SIZE, total);

                $rows.hide();
                $matching.slice((currentPage - 1) * PAGE_SIZE, currentPage * PAGE_SIZE).show();

                $noResults.toggle(total === 0);
                $info.text(total === 0 ? '' : 'Showing ' + start + ' to ' + end + ' of ' + total + ' entries');
                renderPagination(totalPages);
            }

            $search.on('keyup', function() {
                currentPage = 1;
                render();
            });

            $purityFilter.on('change', function() {
                currentPage = 1;
                render();
            });

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