@extends('webview.saku.main')

@push('style')
    <style>
        /* RESET & HEADER BIRU MODERN */
        body {
            background-color: #f4f6f9;
            font-family: 'Inter', sans-serif;
        }

        .app-container {
            background-color: #ffffff;
            min-height: 100vh;
            max-width: 480px;
            margin: 0 auto;
            position: relative;
            overflow-x: hidden;
        }

        .header-blue-bg {
            background-color: #1976d2;
            background-image:
                url("data:image/svg+xml,%3Csvg viewBox='0 0 1440 320' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='rgba(255, 255, 255, 0.12)' d='M0,160L80,144C160,128,320,96,480,112C640,128,800,192,960,192C1120,192,1280,128,1360,96L1440,64L1440,0L1360,0C1280,0,1120,0,960,0C800,0,640,0,480,0C320,0,160,0,80,0L0,0Z'/%3E%3Cpath fill='rgba(255, 255, 255, 0.05)' d='M0,256L80,240C160,224,320,192,480,186.7C640,181,800,203,960,208C1120,213,1280,203,1360,197.3L1440,192L1440,0L1360,0C1280,0,1120,0,960,0C800,0,640,0,480,0C320,0,160,0,80,0L0,0Z'/%3E%3C/svg%3E"),
                linear-gradient(140deg, #42a5f5 0%, #1976d2 100%);
            background-size: cover, cover;
            background-position: center top, center;
            background-repeat: no-repeat, no-repeat;
            padding: 30px 20px 80px 20px;
            position: relative;
            z-index: 1;
        }

        .header-top {
            display: flex;
            align-items: center;
            margin-bottom: 24px;
        }

        .header-top a {
            color: #fff;
            text-decoration: none;
            display: flex;
            align-items: center;
            font-weight: 600;
            font-size: 16px;
            gap: 10px;
        }

        /* KARTU SALDO REKENING BANTUAN */
        .account-card-detail {
            background: #ffffff;
            border-radius: 16px;
            display: flex;
            align-items: center;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
            height: 95px;
            position: relative;
            z-index: 2;
            overflow: hidden;
        }

        .acd-icon {
            width: 90px;
            height: 100%;
            background-color: #003D79;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 0 45px 45px 0;
            color: #fff;
            font-weight: 800;
            font-style: italic;
            font-size: 24px;
            flex-shrink: 0;
        }

        .acd-info {
            flex: 1;
            text-align: right;
            padding-right: 16px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .acd-title {
            font-size: 13px;
            color: #333;
            font-weight: 600;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 250px;
            align-self: flex-end;
        }

        .acd-code {
            font-size: 11px;
            color: #999;
            margin-bottom: 4px;
        }

        .acd-balance {
            font-size: 20px;
            font-weight: 800;
            color: #000;
            letter-spacing: -0.5px;
        }

        /* BODY KONTEN & TRANSAKSI */
        .content-body {
            background-color: #ffffff;
            border-radius: 24px 24px 0 0;
            margin-top: -35px;
            padding: 40px 20px 100px 20px;
            min-height: 100vh;
            position: relative;
            z-index: 10;
        }

        .trans-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 16px;
        }

        .trans-title {
            font-size: 18px;
            font-weight: 700;
            color: #111;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Dropdown Tahun Custom */
        .select-year-custom {
            background-color: #f4f6f9;
            border: 1px solid #e5e7eb;
            border-radius: 8px;
            padding: 4px 8px;
            font-size: 16px;
            font-weight: 700;
            color: #1976d2;
            cursor: pointer;
            outline: none;
            appearance: none;
            background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231976d2' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-position: right 8px center;
            background-size: 14px;
            padding-right: 28px;
        }

        /* TAB BULAN HORIZONTAL */
        .month-scroll-wrapper {
            display: flex;
            overflow-x: auto;
            white-space: nowrap;
            gap: 24px;
            padding-bottom: 12px;
            margin-bottom: 15px;
            border-bottom: 1px solid #f0f0f0;
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        .month-scroll-wrapper::-webkit-scrollbar {
            display: none;
        }

        .month-tab {
            color: #9CA3AF;
            font-weight: 500;
            font-size: 14px;
            cursor: pointer;
            position: relative;
            padding-bottom: 8px;
            transition: color 0.2s;
        }

        .month-tab.active {
            color: #1976d2;
            font-weight: 700;
        }

        .month-tab.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: #1976d2;
            border-radius: 3px 3px 0 0;
        }

        /* LIST TRANSAKSI */
        .trans-item {
            display: flex;
            align-items: center;
            padding: 14px 0;
            border-bottom: 1px solid #f5f5f5;
        }

        .ti-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background-color: #F4F6F9;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 14px;
            flex-shrink: 0;
        }

        .ti-icon img {
            width: 20px;
            height: 20px;
            object-fit: contain;
        }

        .ti-content {
            flex: 1;
        }

        .ti-top-row {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 4px;
        }

        .ti-name {
            font-size: 13px;
            font-weight: 600;
            color: #333;
            line-height: 1.4;
        }

        .ti-meta {
            font-size: 11px;
            color: #888;
        }

        .ti-amount-container {
            text-align: right;
        }

        .ti-amount {
            font-size: 15px;
            font-weight: 700;
            color: #111;
        }

        .text-red {
            color: #EF4444 !important;
        }

        .text-green {
            color: #10B981 !important;
        }

        .loading-state {
            text-align: center;
            padding: 30px;
            color: #999;
            font-size: 13px;
            font-weight: 500;
        }

        /* BUTTON LOAD MORE CUSTOM */
        .btn-load-more {
            width: 100%;
            background-color: #eef2fa;
            color: #1976d2;
            font-weight: 700;
            font-size: 14px;
            padding: 12px;
            border-radius: 50px;
            border: 1px solid #d0def7;
            cursor: pointer;
            transition: 0.2s;
            display: block;
            margin-top: 16px;
            outline: none;
        }

        .btn-load-more:active {
            background-color: #d0def7;
        }
    </style>
@endpush

@section('content')
    <div class="app-container">

        <div class="header-blue-bg">
            <div class="header-top">
                <a href="{{ route('saku-mobile.page.sekolah.saldo-bantuan') }}">
                    <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                        stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
                        <path d="M19 12H5M12 19l-7-7 7-7" />
                    </svg>
                    Kembali
                </a>
            </div>

            <div class="account-card-detail">
                <div class="acd-icon" id="card-icon-text">Rek</div>
                <div class="acd-info">
                    <div class="acd-title" id="txt-akun-nama">Memuat data...</div>
                    <div class="acd-code" id="txt-akun-kode">----</div>
                    <div class="acd-balance" id="val-saldo">Rp0</div>
                </div>
            </div>
        </div>

        <div class="content-body">

            <div class="trans-header">
                <h3 class="trans-title">
                    Mutasi Buku
                    <select id="filter-tahun" class="select-year-custom">
                        <option value="">...</option>
                    </select>
                </h3>
            </div>

            <div class="month-scroll-wrapper" id="month-tabs-container"></div>

            <div id="transaction-list">
                <div class="loading-state">Memuat mutasi...</div>
            </div>

            <div class="text-center my-3" id="btn-load-more-container" style="display:none;">
                <button class="btn-load-more" id="btn-load-more">Tampilkan Lebih Banyak</button>
            </div>

        </div>
    </div>
@endsection

@push('script')
    <script>
        $(document).ready(function() {
            $.ajaxSetup({
                headers: {
                    'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
                }
            });

            const urlParams = new URLSearchParams(window.location.search);
            let activePeriode = urlParams.get('periode');
            const kode_rek = urlParams.get('kode_rek');
            const kode_akun = urlParams.get('kode_akun');

            if (!activePeriode || !kode_rek) {
                alert("Parameter Rekening tidak lengkap!");
                window.location.href = "{{ url('saku-mobile/sekolah/saldo-bantuan') }}";
                return;
            }

            let activeYear = activePeriode.substring(0, 4);
            let activeMonthInt = parseInt(activePeriode.substring(4, 6));

            // VARIABEL UNTUK CLIENT-SIDE PAGINATION
            let allTransactions = [];
            let currentDisplayCount = 0;
            const itemsPerPage = 20;

            function loadFilterTahun() {
                $.ajax({
                    url: "{{ route('saku-mobile.data.filter-tahun') }}",
                    type: 'GET',
                    success: function(res) {
                        if (res.status && res.data.length > 0) {
                            let $selectTahun = $('#filter-tahun');
                            $selectTahun.empty();
                            let isYearExist = false;

                            res.data.forEach(item => {
                                $selectTahun.append(
                                    `<option value="${item.tahun}">${item.tahun}</option>`);
                                if (item.tahun == activeYear) isYearExist = true;
                            });

                            if (!isYearExist) {
                                activeYear = res.data[0].tahun;
                                activePeriode = activeYear + activeMonthInt.toString().padStart(2, '0');
                            }

                            $selectTahun.val(activeYear);
                            renderMonthTabs();
                            loadHeader();
                            fetchMutasiAPI();
                        }
                    }
                });
            }
            loadFilterTahun();

            $('#filter-tahun').change(function() {
                activeYear = $(this).val();
                activePeriode = activeYear + activeMonthInt.toString().padStart(2, '0');
                renderMonthTabs();
                loadHeader();
                fetchMutasiAPI();
            });

            function renderMonthTabs() {
                const months = ['Januari', 'Februari', 'Maret', 'April', 'Mei', 'Juni', 'Juli', 'Agustus',
                    'September', 'Oktober', 'November', 'Desember'
                ];
                let tabsHtml = '';

                for (let i = 1; i <= 12; i++) {
                    let monthNumStr = i.toString().padStart(2, '0');
                    let fullPeriodeVal = activeYear + monthNumStr;
                    let isActive = (i === activeMonthInt) ? 'active' : '';
                    tabsHtml +=
                        `<div class="month-tab ${isActive}" data-periode="${fullPeriodeVal}" data-month="${i}">${months[i-1]}</div>`;
                }

                $('#month-tabs-container').html(tabsHtml);

                let activeElem = $('.month-tab.active');
                if (activeElem.length) {
                    let container = $('#month-tabs-container');
                    let scrollPos = activeElem.position().left + container.scrollLeft() - (container.width() / 2) +
                        (activeElem.width() / 2);
                    container.animate({
                        scrollLeft: scrollPos
                    }, 300);
                }
            }

            $(document).on('click', '.month-tab', function() {
                $('.month-tab').removeClass('active');
                $(this).addClass('active');

                activePeriode = $(this).data('periode');
                activeMonthInt = $(this).data('month');

                loadHeader();
                fetchMutasiAPI();
            });

            function formatRupiah(angka) {
                if (!angka) return '0';
                return new Intl.NumberFormat('id-ID', {
                    minimumFractionDigits: 0
                }).format(parseFloat(angka));
            }

            // 3. LOAD HEADER REKENING
            function loadHeader() {
                $.ajax({
                    url: "{{ url('kb-report/sekolah/lap-kb-saldo-rek') }}",
                    type: 'POST',
                    data: {
                        'periode[]': ['=', activePeriode, ''],
                        'kode_lokasi[]': ['=', "{{ Session::get('lokasi') }}", ''],
                        'kode_rek[]': ['=', kode_rek, ''],
                        'mutasi[]': ['=', 'Tidak', '']
                    },
                    success: function(res) {
                        let dataList = res.result || res.data;
                        if (dataList && dataList.length > 0) {
                            let data = dataList[0];
                            let namaRek = data.nama_rek || '-';
                            let noRek = data.no_rek || '-';

                            let debet = parseFloat(data.so_akhir_debet || data.so_debet || 0);
                            let kredit = parseFloat(data.so_akhir_kredit || data.so_kredit || 0);

                            let saldo = 0;
                            let minusSign = '';

                            $('#val-saldo').removeClass('text-red');
                            if (kredit > 0 && debet === 0) {
                                saldo = kredit;
                                minusSign = '- ';
                                $('#val-saldo').addClass('text-red');
                            } else {
                                saldo = debet;
                            }

                            $('#txt-akun-nama').text(namaRek);
                            $('#txt-akun-kode').text(kode_rek + " | " + noRek);
                            $('#val-saldo').text(minusSign + "Rp " + formatRupiah(saldo));
                            $('#card-icon-text').text("Rek");
                        } else {
                            $('#txt-akun-nama').text("Data tidak ditemukan");
                        }
                    }
                });
            }

            // 4. FETCH DATA MUTASI BUKU REKENING
            function fetchMutasiAPI() {
                $('#transaction-list').html('<div class="loading-state">Memuat mutasi...</div>');
                $('#btn-load-more-container').hide();

                allTransactions = [];
                currentDisplayCount = 0;

                $.ajax({
                    url: "{{ url('kb-report/sekolah/lap-kb-buku-rek') }}",
                    type: 'POST',
                    data: {
                        'periode[]': ['=', activePeriode, ''],
                        'kode_lokasi[]': ['=', "{{ Session::get('lokasi') }}", ''],
                        'kode_rek[]': ['=', kode_rek, '']
                    },
                    success: function(res) {
                        // LOGIKA EXTRACTOR JSON SPESIFIK API LAP-KB-BUKU-REK
                        let dataList = [];

                        if (res && res.res && res.res.data_detail) {
                            dataList = res.res.data_detail;
                        } else if (res && res.detail) {
                            dataList = res.detail;
                        } else {
                            dataList = [];
                        }

                        // Filter Saldo Awal / Akhir agar tidak tampil di daftar
                        dataList = dataList.filter(item => {
                            let ket = (item.keterangan || item.uraian || '').toLowerCase();
                            return ket !== 'saldo awal' && ket !== 'saldo akhir';
                        });

                        if (dataList && dataList.length > 0) {
                            allTransactions = dataList;
                            $('#transaction-list').empty();
                            renderMoreTransactions();
                        } else {
                            $('#transaction-list').html(
                                '<div class="loading-state">Tidak ada mutasi di bulan ini.</div>');
                        }
                    },
                    error: function() {
                        $('#transaction-list').html(
                            '<div class="loading-state text-danger">Gagal memuat mutasi...</div>');
                    }
                });
            }

            // 5. RENDER TRANSAKSI
            function renderMoreTransactions() {
                let html = '';
                let dataChunk = allTransactions.slice(currentDisplayCount, currentDisplayCount + itemsPerPage);

                dataChunk.forEach(item => {
                    let debet = parseFloat(item.debet || 0);
                    let kredit = parseFloat(item.kredit || 0);

                    // Pengecekan uang Keluar vs Masuk (Kredit = Keluar, Debet = Masuk)
                    let isKredit = kredit > 0;
                    let nilai = isKredit ? kredit : debet;

                    let tanda = isKredit ? '- ' : '+ ';
                    let colorClass = isKredit ? 'text-red' : 'text-green';

                    let iconImg = isKredit ?
                        "{{ asset('asset-webview/saku/icons/icon-pengeluarankas-blue.svg') }}" :
                        "{{ asset('asset-webview/saku/icons/icon-penerimaankas-blue.svg') }}";

                    let displayTitle = item.keterangan || item.uraian || '-';
                    let tglTrans = item.tgl || item.tanggal || item.tgl_bukti || '-';
                    let noBukti = item.no_bukti || item.no_dokumen || '-';

                    html += `
                    <div class="trans-item">
                        <div class="ti-icon">
                            <img src="${iconImg}">
                        </div>
                        <div class="ti-content">
                            <div class="ti-top-row">
                                <span class="ti-name">${displayTitle}</span>
                            </div>
                            <div class="ti-meta">${tglTrans} • ${noBukti}</div>
                        </div>
                        <div class="ti-amount-container">
                            <div class="ti-amount ${colorClass}">${tanda} Rp${formatRupiah(nilai)}</div>
                        </div>
                    </div>
                    `;
                });

                $('#transaction-list').append(html);
                currentDisplayCount += dataChunk.length;

                if (currentDisplayCount < allTransactions.length) {
                    $('#btn-load-more-container').show();
                    $('#btn-load-more').text('Tampilkan Lebih Banyak');
                } else {
                    $('#btn-load-more-container').hide();
                }
            }

            $('#btn-load-more').click(function() {
                $(this).text('Memuat...');
                setTimeout(function() {
                    renderMoreTransactions();
                }, 150);
            });

        });
    </script>
@endpush