@extends('layouts.app')
@section('title', 'নতুন পণ্য যোগ')
@section('page-title', 'নতুন পণ্য যোগ করুন')

@section('content')
<div class="row justify-content-center">
    <div class="col-lg-7">
        <div class="card stat-card">
            <div class="card-header bg-white border-0 pt-4 px-4">
                <h6 class="fw-semibold mb-0">
                    <i class="bi bi-plus-circle text-primary me-2"></i>পণ্যের তথ্য পূরণ করুন
                </h6>
            </div>
            <div class="card-body p-4">
                <form method="POST" action="{{ route('admin.cylinder-types.store') }}">
                    @csrf

                    {{-- Basic Info --}}
                    <div class="mb-4">
                        <h6 class="text-primary border-bottom pb-2 mb-3">
                            <i class="bi bi-tag me-1"></i> মূল তথ্য
                        </h6>
                        <div class="row g-3">
                            <div class="col-md-8">
                                <label class="form-label fw-semibold">
                                    পণ্যের নাম <span class="text-danger">*</span>
                                </label>
                                <input type="text" name="name" value="{{ old('name') }}"
                                    class="form-control @error('name') is-invalid @enderror"
                                    placeholder="যেমন: ১২ কেজি LP Gas" required>
                                @error('name') <div class="invalid-feedback">{{ $message }}</div> @enderror
                            </div>
                            <div class="col-md-4">
                                <label class="form-label fw-semibold">
                                    SKU / কোড
                                    <span class="text-muted small">(ঐচ্ছিক)</span>
                                </label>
                                <input type="text" name="sku" value="{{ old('sku') }}"
                                    class="form-control @error('sku') is-invalid @enderror"
                                    placeholder="যেমন: LP-12KG">
                                @error('sku') <div class="invalid-feedback">{{ $message }}</div> @enderror
                            </div>
                            <div class="col-md-4">
                                <label class="form-label fw-semibold">
                                    ওজন (কেজি) <span class="text-danger">*</span>
                                </label>
                                <div class="input-group">
                                    <input type="number" name="weight_kg" value="{{ old('weight_kg') }}"
                                        class="form-control @error('weight_kg') is-invalid @enderror"
                                        step="0.01" min="0.1" placeholder="12.00" required>
                                    <span class="input-group-text">কেজি</span>
                                </div>
                                @error('weight_kg') <div class="invalid-feedback">{{ $message }}</div> @enderror
                            </div>
                        </div>
                    </div>

                    {{-- Pricing --}}
                    <div class="mb-4">
                        <h6 class="text-primary border-bottom pb-2 mb-3">
                            <i class="bi bi-cash-coin me-1"></i> মূল্য নির্ধারণ
                        </h6>
                        <div class="row g-3">
                            <div class="col-md-4">
                                <label class="form-label fw-semibold">
                                    ক্রয়মূল্য (৳) <span class="text-danger">*</span>
                                </label>
                                <div class="input-group">
                                    <span class="input-group-text bg-danger text-white border-danger">৳</span>
                                    <input type="number" name="purchase_price" id="purchasePrice"
                                        value="{{ old('purchase_price', 0) }}"
                                        class="form-control @error('purchase_price') is-invalid @enderror"
                                        step="0.01" min="0" placeholder="0.00" required>
                                </div>
                                @error('purchase_price') <div class="text-danger small mt-1">{{ $message }}</div> @enderror
                            </div>
                            <div class="col-md-4">
                                <label class="form-label fw-semibold">
                                    বিক্রয়মূল্য (৳) <span class="text-danger">*</span>
                                </label>
                                <div class="input-group">
                                    <span class="input-group-text bg-success text-white border-success">৳</span>
                                    <input type="number" name="selling_price" id="sellingPrice"
                                        value="{{ old('selling_price', 0) }}"
                                        class="form-control @error('selling_price') is-invalid @enderror"
                                        step="0.01" min="0" placeholder="0.00" required>
                                </div>
                                @error('selling_price') <div class="text-danger small mt-1">{{ $message }}</div> @enderror
                            </div>
                            <div class="col-md-4">
                                <label class="form-label fw-semibold">লাভের হার</label>
                                <div class="input-group">
                                    <div class="form-control bg-light fw-bold text-success" id="marginDisplay">—</div>
                                    <span class="input-group-text">%</span>
                                </div>
                                <small class="text-muted">স্বয়ংক্রিয় হিসাব</small>
                            </div>
                            <div class="col-md-4">
                                <label class="form-label fw-semibold">
                                    সিলিন্ডার ডিপোজিট (৳)
                                </label>
                                <div class="input-group">
                                    <span class="input-group-text">৳</span>
                                    <input type="number" name="deposit_amount"
                                        value="{{ old('deposit_amount', 0) }}"
                                        class="form-control @error('deposit_amount') is-invalid @enderror"
                                        step="0.01" min="0" placeholder="0.00">
                                </div>
                                <small class="text-muted">সিলিন্ডার জামানত</small>
                                @error('deposit_amount') <div class="text-danger small mt-1">{{ $message }}</div> @enderror
                            </div>
                            <div class="col-md-4">
                                <label class="form-label fw-semibold">কম স্টক সতর্কতা</label>
                                <div class="input-group">
                                    <input type="number" name="low_stock_alert"
                                        value="{{ old('low_stock_alert', 5) }}"
                                        class="form-control" min="0" placeholder="5">
                                    <span class="input-group-text">পিস</span>
                                </div>
                                <small class="text-muted">এর কম হলে সতর্কতা দেখাবে</small>
                            </div>
                        </div>
                    </div>

                    {{-- Description --}}
                    <div class="mb-4">
                        <label class="form-label fw-semibold">বিবরণ (ঐচ্ছিক)</label>
                        <textarea name="description" rows="3"
                            class="form-control"
                            placeholder="পণ্য সম্পর্কে বিস্তারিত তথ্য...">{{ old('description') }}</textarea>
                    </div>

                    {{-- Price Summary Card --}}
                    <div class="alert alert-light border mb-4" id="priceSummary" style="display:none">
                        <div class="row text-center g-0">
                            <div class="col-4 border-end">
                                <div class="small text-muted">ক্রয়মূল্য</div>
                                <div class="fw-bold text-danger" id="sumPurchase">৳০</div>
                            </div>
                            <div class="col-4 border-end">
                                <div class="small text-muted">বিক্রয়মূল্য</div>
                                <div class="fw-bold text-success" id="sumSelling">৳০</div>
                            </div>
                            <div class="col-4">
                                <div class="small text-muted">লাভ</div>
                                <div class="fw-bold text-primary" id="sumProfit">৳০</div>
                            </div>
                        </div>
                    </div>

                    <div class="d-flex gap-2">
                        <button type="submit" class="btn btn-primary px-4">
                            <i class="bi bi-check2 me-2"></i>পণ্য যোগ করুন
                        </button>
                        <a href="{{ route('admin.cylinder-types.index') }}"
                            class="btn btn-outline-secondary px-4">বাতিল</a>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
const purchaseInput = document.getElementById('purchasePrice');
const sellingInput  = document.getElementById('sellingPrice');
const marginDisplay = document.getElementById('marginDisplay');
const priceSummary  = document.getElementById('priceSummary');

function calcMargin() {
    const p = parseFloat(purchaseInput.value) || 0;
    const s = parseFloat(sellingInput.value) || 0;

    if (p > 0 && s > 0) {
        const margin = ((s - p) / p * 100).toFixed(1);
        marginDisplay.textContent = margin;
        marginDisplay.className = 'form-control bg-light fw-bold ' +
            (margin >= 0 ? 'text-success' : 'text-danger');

        document.getElementById('sumPurchase').textContent = '৳' + p.toFixed(2);
        document.getElementById('sumSelling').textContent  = '৳' + s.toFixed(2);
        document.getElementById('sumProfit').textContent   = '৳' + (s - p).toFixed(2);
        priceSummary.style.display = 'block';
    } else {
        marginDisplay.textContent = '—';
        priceSummary.style.display = 'none';
    }
}

purchaseInput.addEventListener('input', calcMargin);
sellingInput.addEventListener('input', calcMargin);
</script>
@endpush