@extends('layout.pcbms')

@section('title', 'Edit Contract')

@push('styles')
    <style>    
        .qty-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1rem;
            padding: 1rem;
            border-radius: 0.5rem;
            border: 1px solid #dee2e6;
            background-color: #ffffff;
            align-items: end;
        }

        /* Read-only row styling */
        .qty-row.read-only-row {
            background-color: #f8f9fa;
            border-color: #e9ecef;
        }

        .qty-inner-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.5rem;
            width: 100%;
        }

        /* Fix for proper grid alignment on qty-row-field containing inner grid */
        .qty-row-field .qty-inner-grid {
            grid-column: 1 / -1;
        }

        /* Ensure inputs don't overflow */
        .qty-inner-grid input {
            width: 100%;
            overflow: hidden;
        }

        /* Force single column under 1400px */
        @media (max-width: 1400px) {
            .qty-row {
                grid-template-columns: 1fr;
            }

            .qty-inner-grid {
                width: 100%;
            }

            .qty-row > button {
                width: 100%;
            }
        }

        .qty-row.has-error {
            border-color: #dc3545;
            background-color: #fff5f5;
        }

        .qty-row.delivered-row {
            background-color: #f0f8f5;
            border-color: #d1e7dd;
        }

        .qty-row-field {
            display: flex;
            flex-direction: column;
            gap: 0.375rem;
        }

        .qty-row-field label {
            font-size: 0.75rem;
            font-weight: 600;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .qty-row-field .form-select,
        .qty-row-field .form-control {
            width: 100%;
            padding: 0.625rem;
            border: 1px solid #dee2e6;
            border-radius: 0.375rem;
            font-size: 0.875rem;
            transition: all 0.2s;
        }

        .qty-row-field .form-select:focus,
        .qty-row-field .form-control:focus {
            border-color: #0d6efd;
            box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
        }

        /* Disabled state styling */
        .qty-row-field .form-select:disabled,
        .qty-row-field .form-control:disabled {
            background-color: #e9ecef;
            color: #6c757d;
            cursor: not-allowed;
            opacity: 1;
        }

        .qty-row-field .form-select.is-invalid,
        .qty-row-field .form-control.is-invalid {
            border-color: #dc3545;
            box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
        }

        .remove-qty-btn {
            padding: 0.625rem 1rem;
            background-color: #dc3545;
            color: white;
            border: none;
            border-radius: 0.375rem;
            font-size: 0.875rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
            min-width: fit-content;
            width: 100%;
            height: fit-content;
        }

        .remove-qty-btn:hover {
            background-color: #bb2d3b;
        }

        .remove-qty-btn:active {
            opacity: 0.9;
        }

        .remove-qty-btn:disabled {
            background-color: #6c757d;
            cursor: not-allowed;
            opacity: 0.5;
        }

        @media (max-width: 768px) {
            .qty-row {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }

            .qty-row-field {
                width: 100%;
            }

            .qty-inner-grid {
                grid-template-columns: 1fr 1fr;
            }

            .remove-qty-btn {
                width: 100%;
            }
        }

        /* Utility classes for spacing */
        .space-y-2 > * + * {
            margin-top: 0.5rem;
        }

        /* Invalid feedback styling */
        .invalid-feedback {
            color: #dc3545;
            font-size: 0.875rem;
            margin-top: 0.25rem;
        }

        /* Visibility helpers */
        .d-none {
            display: none !important;
        }

        /* SUBMIT BUTTON SPINNER STYLES */
        #submit-spinner .spinner-border-sm {
            width: 1rem;
            height: 1rem;
            border-width: 0.25em;
            color: #fff;
        }

        button.loading {
            opacity: 0.9;
            cursor: not-allowed;
        }

        #submit-btn {
            transition: all 0.2s ease;
        }

        #submit-btn:disabled {
            cursor: not-allowed;
        }

        #submit-btn-text,
        #submit-spinner {
            display: inline-block;
        }

        #submit-btn-text.d-none {
            display: none !important;
        }

        #submit-spinner.d-none {
            display: none !important;
        }

        @keyframes spinner-pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

        #submit-spinner:not(.d-none) {
            animation: spinner-pulse 1.5s ease-in-out infinite;
        }

        #clear-btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }
    </style>
@endpush

@section('content')       
    <div class="container-xxl py-4">
        <!-- Form Header & Navigation Link -->
        <div class="mb-5">
            <h1 class="h2 fw-bold text-dark">Edit Contract</h1>
            <p class="text-muted">Update the contract information below.</p>
        </div>

        <!-- Main Form Element -->
        <form action="{{ route('contracts.update', $contract->id) }}" method="POST" class="needs-validation" novalidate data-update-url="{{ route('contracts.update', $contract->id) }}" data-index-url="{{ route('contracts.index') }}">
            @csrf
            @method('PUT')
            
            {{-- Section 1: Contract Information --}}
            <div class="row g-3 mb-4">
                <div class="col-12 col-xxl-12">                                                
                    <div class="card shadow-sm border-0 ">
                        <div class="card-header border-bottom" style="background-color: #DDEBFF;">
                            <span class="card-title mb-0 text-primary fw-bold">
                                Contract Information
                            </span>
                        </div>

                        <div class="card-body">
                            <div class="row g-3">
                                <div class="col-12 col-md-4">
                                    <label for="project_name" class="form-label fw-semibold text-dark">Project Name</label>
                                    <div class="skeleton-wrapper">
                                        <select id="project_name" name="project_name" required
                                            class="form-select"
                                            placeholder="e.g., Grade 4, 7, SHS">
                                            <option value="">Choose</option>
                                        </select>
                                        <div class="skeleton skeleton-input"></div>                                      
                                    </div>
                                </div>
                                
                                <div class="col-12 col-md-4">
                                    <label for="lot_number" class="form-label fw-semibold text-dark">Lot Number</label>                                                                            
                                    <select id="lot_number" name="lot_number" required
                                        class="form-select">
                                        <option value="">Select Project First</option>
                                    </select>
                                </div>

                            </div>

                            <div class="row g-3 mt-1">
                                <div class="col-12 col-md-4">
                                    <label for="contract_number" class="form-label fw-semibold text-dark">Contract Number</label>
                                    <div class="skeleton-wrapper">
                                        <input type="text" id="contract_number" name="contract_number" required
                                            class="form-control"
                                            placeholder="e.g., 2025-BLR2(001)-BII-CB003-C007"
                                            value="{{ $contract->contract_number }}">
                                        <div class="skeleton skeleton-input"></div>
                                    </div>
                                </div>

                                <div class="col-12 col-md-4">
                                    <label for="contract_amount" class="form-label fw-semibold text-dark">Contract Amount</label>
                                    <div class="skeleton-wrapper">
                                        <input type="text" id="contract_amount" name="contract_amount" data-amount="true" required
                                            class="form-control"
                                            placeholder="0.00"
                                            value="{{ number_format($contract->contract_amount, 2) }}">
                                        <div class="skeleton skeleton-input"></div>
                                    </div>
                                </div>      

                                <div class="col-12 col-md-4">
                                    <label for="contract_date" class="form-label fw-semibold text-dark">Contract Date</label>
                                    <div class="skeleton-wrapper">
                                        <input type="date" id="contract_date" name="contract_date"
                                            class="form-control" required
                                            value="{{ $contract->contract_date->format('Y-m-d') }}">
                                        <div class="skeleton skeleton-input"></div>                                    
                                    </div>
                                </div>
                            </div>

                            <div class="row g-3 mt-1">
                                <div class="col-12 col-md-12 position-relative">
                                        <label for="supplier" class="form-label fw-semibold text-dark">Supplier(s)</label>
                                        <div class="position-relative">
                                            <input type="text" id="supplier" name="supplier" required
                                                class="form-control pe-5" 
                                                placeholder="Company Name"
                                                autocomplete="off"
                                                value="{{ $supplier->name ?? '' }}">
                                                
                                            <!-- Inline Loading Spinner -->
                                            <div id="supplier_loading" class="spinner-border spinner-border-sm text-secondary position-absolute d-none" 
                                                style="top: 30%; right: 15px; width: 1rem; height: 1rem;" role="status">
                                                <span class="visually-hidden">Loading...</span>
                                            </div>
                                        </div>
                                        
                                        <!-- Optional: Hidden input to store supplier ID if needed -->
                                        <input type="hidden" id="supplier_id" name="supplier_id" value="{{ $contract->supplier_id }}">
                                        
                                        <!-- Suggestion Dropdown List -->
                                        <div id="supplier_suggestions" class="list-group position-absolute w-100 shadow-sm d-none" 
                                            style="z-index: 1050; max-height: 200px; overflow-y: auto; top: 100%;">
                                        </div>
                                    </div>                              
                            </div>

                        </div>                        
                    </div>
                </div>
            </div>

            {{-- Section 2: Contract Quantities --}}
            <div class="row g-3 mb-4">
                <div class="col-12 col-xxl-12">
                    <div class="card shadow-sm border-0 ">                        
                        <div class="card-header border-bottom" style="background-color: #DDEBFF;">
                            <span class="card-title mb-0 text-primary fw-bold">
                                Contracted Quantities
                            </span>
                        </div>

                        <div class="card-body">
                            <div id="contracted-rows-container">
                                {{-- populate rows here --}}                            
                            </div>
                        </div>
                    </div>           
                </div>

            </div>
        </form>

        <div class="d-flex justify-content-end mt-4 gap-2">
            
            <button type="button" class="btn px-4">                
                <a href="{{ route('contracts.index') }}" class="text-primary text-decoration-none">Back</a>
            </button>
            
            <button type="button" class="btn btn-primary px-4" id="submit-btn">                
                <span id="submit-btn-text">Update</span>
                <span id="submit-spinner" class="d-none">
                    <span class="spinner-border spinner-border-sm" role="status" aria-hidden="true"></span>
                </span>
            </button>
        </div>
    </div>
@endsection

@push('scripts')    
    <script>        
        const contractData = {
            id: "{{ $contract->id }}",
            project_id: "{{ $contract->lot->project_id }}",
            lot_id: "{{ $contract->lot_id }}",
            supplier_id: "{{ $contract->supplier_id }}"
        };
    </script>
    <script src="{{ asset('assets/js/pbcems/contracts/edit.js') }}"></script>
@endpush