@extends('admin.layout.app')

@section('content')
<div class="content-wrapper">
    <section class="content py-2">
        <div class="container-fluid">
            <div class="row">
                <div class="col-md-12">
                    <div class="card">
                        <div class="card-header">
                            <h3 class="card-title">
                                <i class="fas fa-plus-circle"></i> Create Sale
                            </h3>
                            <div class="card-tools">
                                <button type="button" data-target="#modal-add"
                                    data-toggle="modal" class="btn btn-sm btn-info">
                                    <i class="fas fa-plus-circle"></i> Add Customer
                                </button>
                
                                <div id="modal-add" class="modal fade" role="dialog">
                                    <div class="modal-dialog modal-md">
                                        <div class="modal-content">
                                            <div class="modal-header">
                                                <h4 class="modal-title">Add Customer</h4>
                                                <button type="button" class="close"
                                                    data-dismiss="modal">&times;</button>
                                            </div>
                                            <form action="{{route('admin.customer.create.custom')}}" method="post" >
                                                @csrf
                                                <div class="modal-body">
                                                    <div class="form-group">
                                                        <label for="name">Name</label>
                                                        <input type="text" id="name" name="name" class="form-control"
                                                            value="{{old('name')}}"
                                                            placeholder="Enter Name">
                                                        @error('name')
                                                        <span class="text-danger text-sm pull-right">{{$errors->first('name')}}</span>
                                                        @enderror
                                                    </div>
                                                    <div class="form-group">
                                                        <label for="phone">Phone</label>
                                                        <input type="text" id="phone" name="phone" class="form-control"
                                                               value="{{old('phone')}}"
                                                               placeholder="Enter Phone">
                                                        @error('phone')
                                                        <span class="text-danger text-sm pull-right">{{$errors->first('phone')}}</span>
                                                        @enderror
                                                    </div>
                                                    <div class="form-group">
                                                        <label for="nic">CNIC</label>
                                                        <input type="text" id="nic" name="nic" class="form-control"
                                                               value="{{old('nic')}}"
                                                               placeholder="Enter CNIC">
                                                        @error('nic')
                                                        <span class="text-danger text-sm pull-right">{{$errors->first('nic')}}</span>
                                                        @enderror
                                                    </div>
                                                    {{-- <div class="form-group">
                                                        <label for="opening">Opening</label>
                                                        <input type="number" id="opening" name="opening" class="form-control"
                                                            value="{{old('opening')}}"
                                                            placeholder="Enter Opening">
                                                        @error('opening')
                                                        <span class="text-danger text-sm pull-right">{{$errors->first('opening')}}</span>
                                                        @enderror
                                                    </div>
                                                    <div class="form-group">
                                                        <label for="address">Address</label>
                                                        <textarea class="form-control" rows="2" id="address" name="address"
                                                                placeholder="Enter Address">{{old('address')}}</textarea>
                                                        @error('address')
                                                        <span
                                                            class="text-danger text-sm pull-right">{{$errors->first('address')}}</span>
                                                        @enderror
                                                    </div>                                     --}}
                                                </div>
                                                <div class="modal-footer">
                                                    <button type="submit" class="btn btn-sm btn-info">Save Record</button>
                                                </div>
                                            </form>
                                        </div>
                                    </div>
                                </div>

                                <button type="button" data-target="#modal-add-refer"
                                    data-toggle="modal" class="btn btn-sm btn-info">
                                    <i class="fas fa-plus-circle"></i> Add Refer
                                </button>
                                
                                <div id="modal-add-refer" class="modal fade" role="dialog">
                                    <div class="modal-dialog modal-md">
                                        <div class="modal-content">
                                            <div class="modal-header">
                                                <h4 class="modal-title">Add Refer</h4>
                                                <button type="button" class="close"
                                                    data-dismiss="modal">&times;</button>
                                            </div>
                                            <form action="{{route('admin.refer.create')}}" method="post">
                                                @csrf
                                                <div class="modal-body">
                                                    <div class="form-group">
                                                        <label for="name">Name</label>
                                                        <input type="text" id="name" name="name" class="form-control"
                                                            value="{{old('name')}}"
                                                            placeholder="Enter Name">
                                                        @error('name')
                                                        <span class="text-danger text-sm pull-right">{{$errors->first('name')}}</span>
                                                        @enderror
                                                    </div>
                                                    <div class="form-group">
                                                        <label for="phone">Phone</label>
                                                        <input type="text" id="phone" name="phone" class="form-control"
                                                            value="{{old('phone')}}"
                                                            placeholder="Enter phone">
                                                        @error('phone')
                                                        <span class="text-danger text-sm pull-right">{{$errors->first('phone')}}</span>
                                                        @enderror
                                                    </div>                                   
                                                </div>
                                                <div class="modal-footer">
                                                    <button type="submit" class="btn btn-sm btn-info">Save Record</button>
                                                </div>
                                            </form>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                        <form action="" method="POST" enctype="multipart/form-data">
                            @csrf
                            <div class="row">
                                <div class="col-md-8">
                                    <div class="card-body">
                                        <div class="row">
                                            <div class="col-md-3">
                                                <div class="form-group">
                                                    <label for="customer_id">Select Customer</label>
                                                    <select id="customer_id" name="customer_id" class="form-control select2"
                                                            data-placeholder="Select Select Customer">
                                                        <option value="">Select</option>
                                                        @foreach($customers as $customer)
                                                            <option
                                                                value="{{$customer->id}}" {{old('customer_id') == $customer->id?'selected':''}}>{{$customer->name}}
                                                            </option>
                                                        @endforeach
                                                    </select>
                                                    @error('customer_id')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('customer_id')}}</span>
                                                    @enderror
                                                </div>
                                            </div>
                                            <div class="col-md-3">
                                                <div class="form-group">
                                                    <label for="date">Date</label>
                                                    <input type="date" id="date" name="date" class="form-control"
                                                        value="{{old('date')}}"
                                                        placeholder="Enter Date">
                                                    @error('date')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('date')}}</span>
                                                    @enderror
                                                </div>
                                            </div>
                                            <div class="col-md-3">
                                                <div class="form-group">
                                                    <div class="d-flex justify-content-between">
                                                        <label for="bill_no">Bill No</label>
                                                        <label class="text-danger">Last: ({{ $lastBill ?? ''}})</label>
                                                    </div>
                                                    <input type="text" id="bill_no" name="bill_no" class="form-control"
                                                        value="{{old('bill_no')}}"
                                                        placeholder="Enter Bill No">
                                                    @error('bill_no')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('bill_no')}}</span>
                                                    @enderror
                                                </div>
                                            </div>
                                            <div class="col-md-3">
                                                <div class="form-group">
                                                    <label for="refer_id">Select Refer</label>
                                                    <select id="refer_id" name="refer_id" class="form-control select2"
                                                            data-placeholder="Select Select Refer">
                                                        <option value="">Select</option>
                                                        @foreach($refers as $refer)
                                                            <option
                                                                value="{{$refer->id}}" {{old('refer_id') == $refer->id?'selected':''}}>{{$refer->name}}
                                                            </option>
                                                        @endforeach
                                                    </select>
                                                    @error('refer_id')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('refer_id')}}</span>
                                                    @enderror
                                                </div>
                                            </div>
                                            {{-- <div class="col-md-4">
                                                <div class="form-group">
                                                    <label for="refer_amount">Refer Amount</label>
                                                    <input type="number" id="refer_amount" name="refer_amount" class="form-control"
                                                        value="{{old('refer_amount')}}"
                                                        placeholder="Enter Refer Amount">
                                                    @error('refer_amount')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('refer_amount')}}</span>
                                                    @enderror
                                                </div>
                                            </div> --}}
                                            <div class="col-md-4">
                                                <div class="form-group">
                                                    <label for="adjustment">Adjustment Details</label>
                                                    <input type="text" id="adjustment" name="adjustment" class="form-control"
                                                        value="{{old('adjustment')}}"
                                                        placeholder="Enter Adjustment Details">
                                                    @error('adjustment')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('adjustment')}}</span>
                                                    @enderror
                                                </div>
                                            </div>
                                            <div class="col-md-4">
                                                <div class="form-group">
                                                    <label for="adjustment_amount">Adjustment Amount</label>
                                                    <input type="number" id="adjustment_amount" name="adjustment_amount" class="form-control"
                                                        value="{{old('adjustment_amount')}}"
                                                        placeholder="Enter Adjustment Amount">
                                                    @error('adjustment_amount')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('adjustment_amount')}}</span>
                                                    @enderror
                                                </div>
                                            </div>
                                            <div class="col-md-4">
                                                <label>Select Item</label>
                                                <select id="item_id" class="form-control select2">
                                                    <option value="">Select & Search</option>
                                                    @foreach($items as $item)
                                                        <option value="{{ $item->id }}" data-rate="{{ $item->sale_rate }}">
                                                            {{ $item->name }}
                                                        </option>

                                                    @endforeach
                                                </select>
                                            </div>
                                        </div>
                                        <hr>
                                        <table class="table table-bordered mb-4" id="itemsTable">
                                            <thead>
                                                <tr>
                                                    <th>Item</th>
                                                    <th>Qty</th>
                                                    <th>Rate</th>
                                                    <th>Subtotal</th>
                                                    <th>Action</th>
                                                </tr>
                                            </thead>
                                            <tbody></tbody>
                                        </table>
                                        <div class="row">
                                            <div class="col-md-3">
                                                <div class="form-group">
                                                    <label for="type">Select Type</label>
                                                    <select id="type" name="type" class="form-control"
                                                            data-placeholder="Select Select Type">
                                                        <option value="">Select</option>
                                                        <option value="direct">Direct</option>
                                                        <option value="installment">Installment</option>
                                                    </select>
                                                    @error('type')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('type')}}</span>
                                                    @enderror
                                                </div>
                                            </div>

                                            <div class="col-md-3">
                                                <label>Total</label>
                                                <input type="number" id="grand_total" name="total" class="form-control" readonly>
                                            </div>

                                            {{-- ✅ ONLY THIS RECEIVED WILL SUBMIT --}}
                                            <input type="hidden" id="received_main" name="received" value="{{ old('received', 0) }}">

                                            <div class="col-md-6" id="direct">
                                                <div class="row">
                                                    <div class="col-md-4">
                                                        <label>Received</label>
                                                        <input type="number" id="received_direct" class="form-control"
                                                            value="{{ old('received', 0) }}">
                                                    </div>

                                                    <div class="col-md-4">
                                                        <label>Remaining</label>
                                                        <input type="number" id="remaining" class="form-control" readonly>
                                                    </div>

                                                    <div class="col-md-4">
                                                        <div class="form-group">
                                                            <label for="mop">Mop</label>
                                                            <input type="text" id="mop" name="mop" class="form-control"
                                                                value="{{ old('mop') }}"
                                                                placeholder="Enter Mop">
                                                            @error('mop')
                                                            <span class="text-danger text-sm pull-right">{{$errors->first('mop')}}</span>
                                                            @enderror
                                                        </div>
                                                    </div>
                                                </div>
                                            </div>

                                            <div class="col-md-6" id="installment">
                                                <div class="row">
                                                    <div class="col-md-6">
                                                        <div class="form-group">
                                                            <label for="installment_charges">Charges</label>
                                                            <input type="text" id="installment_charges" name="installment_charges" class="form-control"
                                                                value="{{ old('installment_charges', 0) }}"
                                                                placeholder="Enter Charges">
                                                            @error('installment_charges')
                                                            <span class="text-danger text-sm pull-right">{{$errors->first('installment_charges')}}</span>
                                                            @enderror
                                                        </div>
                                                    </div>

                                                    <div class="col-md-6">
                                                        <label>Received</label>
                                                        <input type="number" id="received_installment" class="form-control"
                                                            value="{{ old('received', 0) }}">
                                                    </div>

                                                    <div class="col-md-6">
                                                        <div class="form-group">
                                                            <label for="installment_date">Installment Start</label>
                                                            <input type="date" id="installment_date" name="installment_date" class="form-control"
                                                                value="{{ old('installment_date') }}"
                                                                placeholder="Enter Installment Start">
                                                            @error('installment_date')
                                                            <span class="text-danger text-sm pull-right">{{$errors->first('installment_date')}}</span>
                                                            @enderror
                                                        </div>
                                                    </div>

                                                    <div class="col-md-6">
                                                        <div class="form-group">
                                                            <label for="installment_no">Installment No</label>
                                                            <input type="number" id="installment_no" name="installment_no" class="form-control"
                                                                value="{{ old('installment_no') }}"
                                                                placeholder="Enter Installment No">
                                                            @error('installment_no')
                                                            <span class="text-danger text-sm pull-right">{{$errors->first('installment_no')}}</span>
                                                            @enderror
                                                        </div>
                                                    </div>
                                                </div>
                                            </div>
                                        </div>

                                        <div class="row">
                                            <div class="col-md-4">
                                                <div class="form-group">
                                                    <label for="veh_no">Vehicle No</label>
                                                    <input type="text" id="veh_no" name="veh_no" class="form-control"
                                                        value="{{old('veh_no')}}"
                                                        placeholder="Enter Vehicle No">
                                                    @error('veh_no')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('veh_no')}}</span>
                                                    @enderror
                                                </div>
                                            </div>
                                            <div class="col-md-8">
                                                <div class="form-group">
                                                    <label for="note">Note</label>
                                                    <input type="text" id="note" name="note" class="form-control"
                                                        value="{{old('note')}}"
                                                        placeholder="Enter Note">
                                                    @error('note')
                                                    <span class="text-danger text-sm pull-right">{{$errors->first('note')}}</span>
                                                    @enderror
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                                <div class="col-md-4">
                                    <div class="card p-3">
                                        <h5><b>Capture Selected Customer Documents (5 Images)</b></h5>
                                        <video id="camera" autoplay playsinline style="width:100%; height:300px; border-radius:10px;"></video>
                                        <canvas id="snapshot" style="display:none;"></canvas>
                                        <button type="button" class="btn btn-success btn-sm mt-2" id="captureBtn">
                                            📸 Capture Photo
                                        </button>
                                        <div class="row mt-3" id="captured_preview_area"></div>
                                        <div id="hiddenInputs"></div>
                                    </div>
                                </div>
                            </div>
                            <div class="card-footer text-right">
                                <button type="submit" class="btn btn-primary">
                                    Save Sale
                                </button>
                            </div>
                        </form>
                    </div>
                </div>
            </div>
        </div>
    </section>
</div>
@endsection
@push('script')
<script>
$(document).ready(function () {

    $('.select2').select2();
    let row = 0;

    // ✅ Default hide/show
    function toggleType() {
        let type = $('#type').val();

        if (type === 'direct') {
            $('#direct').show();
            $('#installment').hide();
        } else if (type === 'installment') {
            $('#direct').hide();
            $('#installment').show();
        } else {
            $('#direct').hide();
            $('#installment').hide();
        }
    }

    toggleType();

    $('#type').on('change', function () {
        toggleType();
        syncReceived();
        calculate();
    });

    // ✅ Add item into table
    $('#item_id').on('change', function () {

        let itemId = $(this).val();
        if (!itemId) return;

        let selectedOption = $('#item_id option:selected');
        let itemName = selectedOption.text().trim();
        let rate = parseFloat(selectedOption.data('rate')) || 0;

        // ✅ Prevent duplicate
        if ($(`#itemsTable input[value="${itemId}"]`).length) {
            alert('Item already added');
            $('#item_id').val('').trigger('change');
            return;
        }

        row++;

        let html = `
            <tr>
                <td>
                    <input type="hidden" name="items[${row}][item_id]" value="${itemId}">
                    <input type="text" class="form-control" value="${itemName}" readonly>
                </td>

                <td>
                    <input type="number" name="items[${row}][quantity]"
                        class="form-control qty" value="1" min="1" step="0.01">
                </td>

                <td>
                    <input type="number" name="items[${row}][rate]"
                        class="form-control rate" value="${rate}" step="0.01">
                </td>

                <td>
                    <input type="number" name="items[${row}][subtotal]"
                        class="form-control subtotal" readonly step="0.01">
                </td>

                <td>
                    <button type="button" class="btn btn-danger btn-sm remove w-100">Remove</button>
                </td>
            </tr>
        `;

        $('#itemsTable tbody').append(html);

        $('#item_id').val('').trigger('change');

        calculate();
    });

    // ✅ Remove row
    $(document).on('click', '.remove', function () {
        $(this).closest('tr').remove();
        calculate();
    });

    // ✅ Sync Received (ONLY hidden will submit)
    function syncReceived() {
        let type = $('#type').val();
        let received = 0;

        if (type === 'direct') {
            received = parseFloat($('#received_direct').val()) || 0;
        } else if (type === 'installment') {
            received = parseFloat($('#received_installment').val()) || 0;
        }

        $('#received_main').val(received);
    }

    // ✅ Recalculate on any change
    $(document).on('keyup change input', '.qty, .rate, #received_direct, #received_installment, #adjustment_amount, #installment_charges', function () {
        syncReceived();
        calculate();
    });

    function calculate() {

        let total = 0;

        $('#itemsTable tbody tr').each(function () {
            let qty = parseFloat($(this).find('.qty').val()) || 0;
            let rate = parseFloat($(this).find('.rate').val()) || 0;

            let subtotal = qty * rate;

            $(this).find('.subtotal').val(subtotal.toFixed(2));
            total += subtotal;
        });

        let adjustmentAmount = parseFloat($('#adjustment_amount').val()) || 0;
        let installmentCharges = parseFloat($('#installment_charges').val()) || 0;

        let grandTotal = (total + installmentCharges) - adjustmentAmount;

        $('#grand_total').val(grandTotal.toFixed(2));

        let received = parseFloat($('#received_main').val()) || 0;

        let remaining = grandTotal - received;
        if (remaining < 0) remaining = 0;

        $('#remaining').val(remaining.toFixed(2));
    }

    // ✅ First load
    syncReceived();
    calculate();

});
</script>
<script>
    let video = document.getElementById("camera");
    let canvas = document.getElementById("snapshot");
    let captureBtn = document.getElementById("captureBtn");
    let previewArea = document.getElementById("captured_preview_area");
    let hiddenInputs = document.getElementById("hiddenInputs");

    let capturedImages = []; // store base64 images

    // ✅ Start laptop camera
    navigator.mediaDevices.getUserMedia({ video: true })
        .then(stream => {
            video.srcObject = stream;
        })
        .catch(err => {
            alert("Camera access denied or not available!");
            console.log(err);
        });

    // ✅ Capture image
    captureBtn.addEventListener("click", function () {
        canvas.width = video.videoWidth;
        canvas.height = video.videoHeight;

        let ctx = canvas.getContext("2d");
        ctx.drawImage(video, 0, 0, canvas.width, canvas.height);

        let imageData = canvas.toDataURL("image/png"); // base64 image
        capturedImages.push(imageData);

        renderImages();
    });

    // ✅ Show previews + remove button
    function renderImages() {
        previewArea.innerHTML = "";
        hiddenInputs.innerHTML = "";

        capturedImages.forEach((img, index) => {

            previewArea.innerHTML += `
                <div class="col-md-3 mb-3">
                    <div class="card p-2 text-center">
                        <img src="${img}" class="img-fluid rounded"
                             style="height:120px; object-fit:cover;">
                        <button type="button" class="btn btn-danger btn-sm mt-2"
                                onclick="removeCaptured(${index})">
                            Remove
                        </button>
                    </div>
                </div>
            `;

            // ✅ add hidden input for submitting to backend
            hiddenInputs.innerHTML += `
                <input type="hidden" name="camera_images[]" value="${img}">
            `;
        });
    }

    function removeCaptured(index) {
        capturedImages.splice(index, 1);
        renderImages();
    }
</script>
@endpush