@extends('layout.app')
@section('title', 'Print Purchase Voucher #' . $purchaseVoucher->voucher_no)

@push('header_script')
    <style>
        @page {
            size: A4 portrait;
            margin: 15mm 10mm;
        }

        body {
            background-color: #f8fafc;
            color: #0f172a;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        }

        .pv-wrapper {
            width: 100%;
            max-width: 850px;
            margin: 20px auto;
            background: #ffffff;
            padding: 24px;
            border-radius: 12px;
            border: 1px solid #e2e8f0;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
        }
        
        .header-title {
            font-size: 20px;
            font-weight: 700;
            text-transform: uppercase;
            text-align: center;
            letter-spacing: 0.05em;
            margin-bottom: 20px;
            color: #1e3a8a;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 12px;
        }

        .section-title {
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: #475569;
            margin-bottom: 8px;
            border-bottom: 1px solid #cbd5e1;
            padding-bottom: 4px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px 16px;
            margin-bottom: 20px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .info-box {
            background: #f8fafc;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            padding: 10px 12px;
        }

        .info-label {
            font-size: 10px;
            font-weight: 600;
            text-transform: uppercase;
            color: #64748b;
            margin-bottom: 2px;
        }

        .info-value {
            font-size: 13px;
            font-weight: 500;
            color: #0f172a;
        }

        .pd-row {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            border-bottom: 1px dashed #e2e8f0;
            padding: 6px 0;
        }

        .pd-row:last-child {
            border-bottom: none;
        }

        .pv-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 12px;
            margin-bottom: 20px;
        }

        .pv-table th {
            text-align: left;
            font-weight: 600;
            color: #475569;
            background-color: #f1f5f9;
            padding: 8px 10px;
            border-bottom: 2px solid #cbd5e1;
            text-transform: uppercase;
            font-size: 10px;
        }

        .pv-table td {
            padding: 8px 10px;
            border-bottom: 1px solid #e2e8f0;
            vertical-align: middle;
        }

        .pv-num {
            text-align: right;
        }

        .summary-wrapper {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 15px;
        }

        .summary-col-left {
            width: 55%;
        }

        .summary-col-right {
            width: 40%;
            background: #f8fafc;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            padding: 12px;
        }

        .pv-trow {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            padding: 5px 0;
            color: #475569;
        }

        .pv-trow.grand {
            font-weight: 700;
            color: #0f172a;
            border-top: 1px solid #cbd5e1;
            margin-top: 4px;
            padding-top: 8px;
            font-size: 14px;
        }

        .pv-sub {
            font-weight: 600;
            color: #0f172a;
            border-top: 1px solid #cbd5e1;
            margin-top: 2px;
            padding-top: 6px;
        }

        .badge-print {
            border: 1px solid #cbd5e1;
            background: #ffffff;
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 11px;
            font-weight: 600;
        }

        @media print {
            .no-print {
                display: none !important;
            }
            body {
                background-color: #ffffff;
                padding: 0;
            }
            .pv-wrapper {
                margin: 0;
                max-width: 100%;
                border: none;
                box-shadow: none;
                padding: 0;
            }
        }
    </style>
@endpush

@section('content')
    <div class="app-hero-header d-flex align-items-center no-print" style="padding: 10px;">
        <ol class="breadcrumb">
            <li class="breadcrumb-item">
                <a href="{{ route('purchase-voucher.index') }}">Purchase Voucher List</a>
            </li>
            <li class="breadcrumb-item active" aria-current="page">Print Preview</li>
        </ol>
        <div class="ms-auto">
            <button onclick="window.print()" class="btn btn-sm btn-success text-white">
                <i class="ri-printer-line"></i> Print Voucher
            </button>
            <a href="{{ route('purchase-voucher.index') }}" class="btn btn-sm btn-primary text-white">
                <i class="ri-arrow-go-back-line"></i> Back
            </a>
        </div>
    </div>

    @php
        $companyStateId = optional($companyDetails)->state_id;
        $partyStateId = optional($partyDetails)->state_id;
        $isIntra = $companyStateId == $partyStateId;
        $isRegular = optional($partyDetails)->register_type === 'Regular';
        
        // Detect if RCM was enabled
        $hasItemTaxGroups = false;
        foreach($purchaseVoucher->voucherDetails as $dt) {
            if($dt->tax_group_id && $dt->taxGroup && $dt->taxGroup->tax_slab !== 'None') {
                $hasItemTaxGroups = true;
            }
        }
        $isRcm = $isRegular && $hasItemTaxGroups && $purchaseVoucher->final_tax_total == 0;

        // Check if batch or expiry fields have values to display
        $hasBatch = $purchaseVoucher->voucherDetails->contains(fn($d) => !empty($d->batch_no));
        $hasExpiry = $purchaseVoucher->voucherDetails->contains(fn($d) => !empty($d->expiry_date));
    @endphp

    <div class="app-body">
        <div class="pv-wrapper">
            <div class="header-title">
                {{ $companyDetails->company_name ?? 'Purchase Voucher' }}
            </div>

            {{-- VOUCHER DETAILS --}}
            <div class="section-title">Voucher Details</div>
            <div class="grid-4">
                <div class="info-box">
                    <div class="info-label">Voucher No.</div>
                    <div class="info-value fw-bold">{{ $purchaseVoucher->voucher_no }}</div>
                </div>
                <div class="info-box">
                    <div class="info-label">Voucher Date</div>
                    <div class="info-value">{{ \Carbon\Carbon::parse($purchaseVoucher->voucher_date)->format('d-M-Y') }}</div>
                </div>
                <div class="info-box">
                    <div class="info-label">Supplier Invoice No.</div>
                    <div class="info-value">{{ $purchaseVoucher->supplier_invoice_no ?: '—' }}</div>
                </div>
                <div class="info-box">
                    <div class="info-label">Supplier Invoice Date</div>
                    <div class="info-value">{{ $purchaseVoucher->supplier_invoice_date ? \Carbon\Carbon::parse($purchaseVoucher->supplier_invoice_date)->format('d-M-Y') : '—' }}</div>
                </div>
            </div>

            {{-- PARTY & INFO --}}
            <div class="grid-2">
                <div class="info-box">
                    <div class="section-title" style="border: none; margin-bottom: 4px;">Party Details</div>
                    <div class="pd-row"><span style="color: #64748b">Party Name</span><span class="fw-bold">{{ $purchaseVoucher->accountLedger->ledger_name ?? '—' }}</span></div>
                    <div class="pd-row"><span style="color: #64748b">GST No.</span><span>{{ optional($partyDetails)->gst_no ?: 'Not registered' }}</span></div>
                    <div class="pd-row"><span style="color: #64748b">Mobile</span><span>{{ optional($partyDetails)->mobile_no ?? '—' }}</span></div>
                    <div class="pd-row"><span style="color: #64748b">Address</span><span style="text-align: right; max-width: 65%">{{ optional($partyDetails)->address ?? '—' }}</span></div>
                    <div class="pd-row"><span style="color: #64748b">State</span><span>{{ optional(optional($partyDetails)->state)->state_name ?? '—' }}</span></div>
                    <div class="pd-row" style="align-items: center;"><span style="color: #64748b">GST Type</span><span class="badge-print">{{ optional($partyDetails)->register_type ?? '—' }}</span></div>
                </div>
                <div class="info-box d-flex flex-column justify-content-between">
                    <div>
                        <div class="section-title" style="border: none; margin-bottom: 4px;">Information Panel</div>
                        <div class="pd-row"><span style="color: #64748b">Tax Type</span><span class="badge-print">{{ $isIntra ? 'Intra-state (CGST+SGST)' : 'Inter-state (IGST)' }}</span></div>
                        <div class="pd-row"><span style="color: #64748b">RCM Status</span><span class="badge-print fw-bold text-uppercase">{{ $isRcm ? 'Active' : 'Inactive' }}</span></div>
                        <div class="pd-row"><span style="color: #64748b">Created By</span><span>{{ $purchaseVoucher->created_by }}</span></div>
                    </div>
                </div>
            </div>

            {{-- SELECTED ITEMS --}}
            <div class="section-title">Selected Item Details</div>
            <table class="pv-table">
                <thead>
                    <tr>
                        <th style="width: 25%">Item Name</th>
                        <th style="width: 10%">HSN</th>
                        @if($hasBatch)
                            <th style="width: 10%">Batch No.</th>
                        @endif
                        @if($hasExpiry)
                            <th style="width: 12%">Expiry</th>
                        @endif
                        <th style="width: 8%" class="pv-num">Qty</th>
                        <th style="width: 10%" class="pv-num">Rate</th>
                        <th style="width: 10%" class="pv-num">Taxable</th>
                        @if($isRegular && !$isRcm)
                            <th style="width: 8%">GST%</th>
                            <th style="width: 10%" class="pv-num">Tax Amt</th>
                        @endif
                        <th style="width: 10%" class="pv-num">Total</th>
                    </tr>
                </thead>
                <tbody>
                    @foreach ($purchaseVoucher->voucherDetails as $detail)
                        <tr>
                            <td>{{ $detail->product->product_name ?? 'N/A' }}</td>
                            <td>{{ $detail->product->hsn_code ?? '—' }}</td>
                            @if($hasBatch)
                                <td>{{ $detail->batch_no ?: '—' }}</td>
                            @endif
                            @if($hasExpiry)
                                <td>{{ $detail->expiry_date ? \Carbon\Carbon::parse($detail->expiry_date)->format('d-M-Y') : '—' }}</td>
                            @endif
                            <td class="pv-num">{{ $detail->qty }}</td>
                            <td class="pv-num">₹{{ number_format($detail->rate, 2) }}</td>
                            <td class="pv-num">₹{{ number_format($detail->amount, 2) }}</td>
                            @if($isRegular && !$isRcm)
                                <td>{{ $detail->tax }}%</td>
                                <td class="pv-num">₹{{ number_format($detail->tax_amount, 2) }}</td>
                            @endif
                            <td class="pv-num fw-bold">₹{{ number_format($detail->total_amount, 2) }}</td>
                        </tr>
                    @endforeach
                </tbody>
            </table>

            {{-- OTHER CHARGES --}}
            @if($purchaseVoucher->voucherExpense->isNotEmpty() || $purchaseVoucher->voucherAfterGstCharge->isNotEmpty())
                <div class="section-title">Other Charges &amp; Discounts</div>
                <table class="pv-table" style="margin-bottom: 20px;">
                    <thead>
                        <tr>
                            <th style="width: 40%">Description</th>
                            <th style="width: 20%" class="pv-num">Amount</th>
                            <th style="width: 20%">Type</th>
                            @if($isRegular && !$isRcm)
                                <th style="width: 20%">GST Breakdown</th>
                            @endif
                        </tr>
                    </thead>
                    <tbody>
                        @foreach ($purchaseVoucher->voucherExpense as $expense)
                            <tr>
                                <td>{{ $expense->ledger->ledger_name ?? 'Charge' }}</td>
                                <td class="pv-num">₹{{ number_format($expense->exp_amount, 2) }}</td>
                                <td>Before GST</td>
                                @if($isRegular && !$isRcm)
                                    <td>
                                        @if($expense->expense_tax_amount > 0)
                                            GST ({{ $expense->expense_tax }}%): ₹{{ number_format($expense->expense_tax_amount, 2) }}
                                        @else
                                            —
                                        @endif
                                    </td>
                                @endif
                            </tr>
                        @endforeach
                        @foreach ($purchaseVoucher->voucherAfterGstCharge as $afterGst)
                            <tr>
                                <td>{{ $afterGst->ledger->ledger_name ?? 'Charge' }}</td>
                                <td class="pv-num">₹{{ number_format($afterGst->after_gst_amount, 2) }}</td>
                                <td>After GST</td>
                                @if($isRegular && !$isRcm)
                                    <td>— (Exempt)</td>
                                @endif
                            </tr>
                        @endforeach
                    </tbody>
                </table>
            @endif

            {{-- REMARK & CALCULATION SUMMARY --}}
            <div class="summary-wrapper">
                <div class="summary-col-left">
                    <div class="section-title">Remarks</div>
                    <div style="font-size: 12px; color: #475569; padding: 10px; background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px; min-height: 80px; white-space: pre-line">
                        {{ $purchaseVoucher->remark ?: 'No remarks entered.' }}
                    </div>
                </div>

                <div class="summary-col-right">
                    @php
                        $total_before_gst = $purchaseVoucher->voucherExpense->sum('exp_amount');
                        $total_after_gst = $purchaseVoucher->voucherAfterGstCharge->sum('after_gst_amount');
                        $total_taxable = $purchaseVoucher->total_purchase_amount + $total_before_gst;
                    @endphp
                    <div class="pv-trow"><span>Item Taxable Value</span><span>₹{{ number_format($purchaseVoucher->total_purchase_amount, 2) }}</span></div>
                    <div class="pv-trow"><span>Other Charges Taxable</span><span>₹{{ number_format($total_before_gst, 2) }}</span></div>
                    <div class="pv-trow pv-sub"><span>Total Taxable Value</span><span>₹{{ number_format($total_taxable, 2) }}</span></div>

                    @if($isRegular && !$isRcm)
                        @if($isIntra)
                            <div class="pv-trow"><span>CGST</span><span>₹{{ number_format($purchaseVoucher->final_tax_total / 2, 2) }}</span></div>
                            <div class="pv-trow"><span>SGST</span><span>₹{{ number_format($purchaseVoucher->final_tax_total / 2, 2) }}</span></div>
                        @else
                            <div class="pv-trow"><span>IGST</span><span>₹{{ number_format($purchaseVoucher->final_tax_total, 2) }}</span></div>
                        @endif
                    @endif

                    <div class="pv-trow"><span>Other Charges (after GST)</span><span>₹{{ number_format($total_after_gst, 2) }}</span></div>
                    <div class="pv-trow"><span>Round Off</span><span>{{ $purchaseVoucher->round_off >= 0 ? '+' : '' }}₹{{ number_format($purchaseVoucher->round_off, 2) }}</span></div>
                    
                    <div class="pv-trow grand"><span>Invoice Total</span><span>₹{{ number_format($purchaseVoucher->net_total, 2) }}</span></div>
                    
                    <div class="pv-trow" style="border-top: 1px dashed #cbd5e1; margin-top: 6px; padding-top: 6px">
                        <span>Paid Amount</span>
                        <span style="color: #16794c; font-weight: 600;">₹{{ number_format($purchaseVoucher->total_paid, 2) }}</span>
                    </div>
                    <div class="pv-trow">
                        <span class="fw-bold">Remaining Balance</span>
                        <span style="color: #2563eb; font-weight: 700;">₹{{ number_format($purchaseVoucher->balance, 2) }}</span>
                    </div>

                    @if($isRcm)
                        @php
                            $rcm_payable = 0;
                            foreach ($purchaseVoucher->voucherDetails as $detail) {
                                if ($detail->taxGroup && is_numeric($detail->taxGroup->tax_slab)) {
                                    $rcm_payable += ($detail->amount * $detail->taxGroup->tax_slab) / 100;
                                }
                            }
                            foreach ($purchaseVoucher->voucherExpense as $expense) {
                                if ($expense->taxGroup && is_numeric($expense->taxGroup->tax_slab)) {
                                    $rcm_payable += ($expense->exp_amount * $expense->taxGroup->tax_slab) / 100;
                                }
                            }
                        @endphp
                        @if($rcm_payable > 0)
                            <div class="pv-trow" style="border-top: 1px dashed #cbd5e1; margin-top: 8px; padding-top: 8px">
                                <span class="fw-bold">RCM Payable to Govt.</span>
                                <span class="fw-bold text-warning">₹{{ number_format($rcm_payable, 2) }}</span>
                            </div>
                            <div style="font-size: 10px; color: #64748b; text-align: right;">Self-assessed — not part of invoice total</div>
                        @endif
                    @endif
                </div>
            </div>
        </div>
    </div>
@endsection