@extends('layouts.app')
@section('title', 'Units List')
@section('content')
<div class="container-fluid py-4">

    <!-- Header -->
    <div class="d-flex flex-column flex-md-row justify-content-between align-items-start align-items-md-center mb-4 gap-2">
        <h2 class="fw-bold text-dark mb-0">Units List</h2>
        <button class="btn btn-primary shadow-sm" data-bs-toggle="modal" data-bs-target="#addUnitModal">
            <i class="bi bi-plus-circle me-1"></i> Add Unit
        </button>
    </div>

    <!-- Success Message -->
    @if(session('success'))
        <div class="alert alert-success alert-dismissible fade show" role="alert">
            {{ session('success') }}
            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
        </div>
    @endif

    <!-- Units Table Card -->
    <div class="card shadow-sm border-0">
        <div class="card-body p-2 p-md-3">
            <div class="table-responsive">
                <table class="table table-striped table-hover align-middle text-center mb-0">
                    <thead class="table-primary">
                        <tr>
                            <th>ID</th>
                            <th>Image</th>
                            {{-- <th>Name</th> --}}
                            {{-- <th>Description</th> --}}
                            <th>Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        @forelse($units as $index => $unit)
                        <tr>
                            <td>{{ $index + 1 }}</td>
                            {{-- <td>
                                @if($unit->image)
                                    <img src="{{ asset($unit->image) }}" alt="{{ $unit->name }}" class="rounded shadow-sm" width="60" height="60">
                                @else
                                    <span class="text-muted fst-italic">No Image</span>
                                @endif
                            </td> --}}
                            <td>{{ $unit->name }}</td>
                            {{-- <td class="text-truncate" style="max-width:200px;">{{ $unit->description ?? '-' }}</td> --}}
                            <td>
                                <div class="d-flex justify-content-center gap-2 flex-wrap">
                                    <!-- Edit Button -->
                                    <button class="btn btn-warning btn-sm editUnitBtn d-flex align-items-center gap-1"
                                        data-id="{{ $unit->id }}"
                                        data-name="{{ $unit->name }}"
                                        data-description="{{ $unit->description }}"
                                        data-image="{{ $unit->image }}"
                                        data-bs-toggle="modal"
                                        data-bs-target="#editUnitModal">
                                        <i class="bi bi-pencil-square"></i> 
                                    </button>

                                    <!-- Delete Form -->
                                    <form action="{{ route('units.destroy', $unit->id) }}" method="POST" class="d-inline" onsubmit="return confirm('Are you sure you want to delete this unit?');">
                                        @csrf
                                        @method('DELETE')
                                        <button class="btn btn-danger btn-sm d-flex align-items-center gap-1">
                                            <i class="bi bi-trash"></i>
                                        </button>
                                    </form>
                                </div>
                            </td>
                        </tr>
                        @empty
                            <tr>
                                <td colspan="5" class="text-muted py-4">No units found.</td>
                            </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div>

<!-- Add Unit Modal -->
<div class="modal fade" id="addUnitModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog modal-dialog-centered">
        <form action="{{ route('units.store') }}" method="POST" enctype="multipart/form-data" class="modal-content border-0 shadow">
            @csrf
            <div class="modal-header">
                <h5 class="modal-title">Add Unit</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <div class="mb-3">
                    <label class="form-label">Unit Name</label>
                    <input type="text" name="name" class="form-control" placeholder="Enter unit name" required>
                </div>
                <div class="mb-3" style="display: none">
                    <label class="form-label">Description</label>
                    <textarea name="description" class="form-control" rows="2" placeholder="Enter description"></textarea>
                </div>
                <div class="mb-3" style="display: none">
                    <label class="form-label">Image</label>
                    <input type="file" name="image" class="form-control" accept="image/*" onchange="previewUnitImage(event, 'add')">
                    <div class="mt-2 text-center">
                        <img id="addUnitPreview" class="img-thumbnail d-none" width="100" height="100" alt="Preview">
                    </div>
                </div>
            </div>
            <div class="modal-footer">
                <button class="btn btn-secondary" type="button" data-bs-dismiss="modal"><i class="bi bi-x-circle"></i> Close</button>
                <button class="btn btn-success" type="submit"><i class="bi bi-save"></i> Save</button>
            </div>
        </form>
    </div>
</div>

<!-- Edit Unit Modal -->
<div class="modal fade" id="editUnitModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog modal-dialog-centered">
        <form id="editUnitForm" method="POST" enctype="multipart/form-data" class="modal-content border-0 shadow">
            @csrf
            @method('PUT')
            <div class="modal-header bg-warning text-dark">
                <h5 class="modal-title">Edit Unit</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <input type="hidden" id="editUnitId" name="id">
                <div class="mb-3">
                    <label class="form-label">Unit Name</label>
                    <input type="text" name="name" id="editUnitName" class="form-control" required>
                </div>
                <div class="mb-3" style="display: none">
                    <label class="form-label">Description</label>
                    <textarea name="description" id="editUnitDescription" class="form-control" rows="2"></textarea>
                </div>
                <div class="mb-3" style="display: none">
                    <label class="form-label">Image</label>
                    <input type="file" name="image" id="editUnitImage" class="form-control" accept="image/*" onchange="previewUnitImage(event, 'edit')">
                    <div class="mt-2 text-center">
                        <img id="editUnitPreview" class="img-thumbnail d-none" width="100" height="100" alt="Preview">
                    </div>
                </div>
            </div>
            <div class="modal-footer">
                <button class="btn btn-secondary" type="button" data-bs-dismiss="modal"><i class="bi bi-x-circle"></i> Close</button>
                <button class="btn btn-success" type="submit"><i class="bi bi-save"></i> Update</button>
            </div>
        </form>
    </div>
</div>

<script>
function previewUnitImage(event, type) {
    const preview = type === 'add' ? document.getElementById('addUnitPreview') : document.getElementById('editUnitPreview');
    const file = event.target.files[0];
    if(file) {
        const reader = new FileReader();
        reader.onload = e => {
            preview.src = e.target.result;
            preview.classList.remove('d-none');
        };
        reader.readAsDataURL(file);
    } else {
        preview.src = '';
        preview.classList.add('d-none');
    }
}

// Edit Unit Modal: populate fields
document.querySelectorAll('.editUnitBtn').forEach(btn => {
    btn.addEventListener('click', () => {
        const id = btn.dataset.id;
        const name = btn.dataset.name;
        const desc = btn.dataset.description;
        const img = btn.dataset.image;

        const form = document.getElementById('editUnitForm');
        form.action = `/units/${id}`;
        document.getElementById('editUnitId').value = id;
        document.getElementById('editUnitName').value = name;
        document.getElementById('editUnitDescription').value = desc || '';

        const preview = document.getElementById('editUnitPreview');
        if(img) {
            preview.src = `/${img}`;
            preview.classList.remove('d-none');
        } else {
            preview.src = '';
            preview.classList.add('d-none');
        }
    });
});
</script>
@endsection