@extends('layouts.bootstrap')

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

@section('content')
<div class="container-fluid">
    <div class="row">
        <div class="col-12">
            <div class="d-flex justify-content-between align-items-center mb-4">
                <h1 class="h3 mb-0">
                    <i class="bi bi-pencil me-2"></i>Edit Expense
                </h1>
                <div class="btn-group" role="group">
                    <a href="{{ route('expenses.show', $expense) }}" class="btn btn-outline-secondary">
                        <i class="bi bi-arrow-left me-1"></i>Back to Details
                    </a>
                    <a href="{{ route('expenses.index') }}" class="btn btn-outline-secondary">
                        <i class="bi bi-list me-1"></i>All Expenses
                    </a>
                </div>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-lg-8">
            <div class="card">
                <div class="card-header">
                    <h5 class="card-title mb-0">Expense Details</h5>
                </div>
                <div class="card-body">
                    <form action="{{ route('expenses.update', $expense) }}" method="POST" enctype="multipart/form-data">
                        @csrf
                        @method('PUT')
                        
                        <div class="row mb-3">
                            <div class="col-md-8">
                                <label for="title" class="form-label">Title <span class="text-danger">*</span></label>
                                <input type="text" class="form-control @error('title') is-invalid @enderror" 
                                       id="title" name="title" value="{{ old('title', $expense->title) }}" required>
                                @error('title')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                            <div class="col-md-4">
                                <label for="amount" class="form-label">Amount <span class="text-danger">*</span></label>
                                <div class="input-group">
                                    <span class="input-group-text">$</span>
                                    <input type="number" class="form-control @error('amount') is-invalid @enderror" 
                                           id="amount" name="amount" value="{{ old('amount', $expense->amount) }}" 
                                           step="0.01" min="0.01" required>
                                    @error('amount')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                        </div>

                        <div class="mb-3">
                            <label for="description" class="form-label">Description</label>
                            <textarea class="form-control @error('description') is-invalid @enderror" 
                                      id="description" name="description" rows="3">{{ old('description', $expense->description) }}</textarea>
                            @error('description')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>

                        <div class="row mb-3">
                            <div class="col-md-6">
                                <label for="category" class="form-label">Category <span class="text-danger">*</span></label>
                                <select class="form-select @error('category') is-invalid @enderror" 
                                        id="category" name="category" required>
                                    <option value="">Select Category</option>
                                    @foreach(\App\Models\Expense::getCategories() as $key => $label)
                                        <option value="{{ $key }}" {{ old('category', $expense->category) == $key ? 'selected' : '' }}>
                                            {{ $label }}
                                        </option>
                                    @endforeach
                                </select>
                                @error('category')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                            <div class="col-md-6">
                                <label for="payment_method" class="form-label">Payment Method <span class="text-danger">*</span></label>
                                <select class="form-select @error('payment_method') is-invalid @enderror" 
                                        id="payment_method" name="payment_method" required>
                                    <option value="">Select Payment Method</option>
                                    @foreach(\App\Models\Expense::getPaymentMethods() as $key => $label)
                                        <option value="{{ $key }}" {{ old('payment_method', $expense->payment_method) == $key ? 'selected' : '' }}>
                                            {{ $label }}
                                        </option>
                                    @endforeach
                                </select>
                                @error('payment_method')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <div class="col-md-6">
                                <label for="vendor" class="form-label">Vendor/Supplier</label>
                                <input type="text" class="form-control @error('vendor') is-invalid @enderror" 
                                       id="vendor" name="vendor" value="{{ old('vendor', $expense->vendor) }}" 
                                       placeholder="Vendor or supplier name">
                                @error('vendor')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                            <div class="col-md-6">
                                <label for="invoice_number" class="form-label">Invoice Number</label>
                                <input type="text" class="form-control @error('invoice_number') is-invalid @enderror" 
                                       id="invoice_number" name="invoice_number" value="{{ old('invoice_number', $expense->invoice_number) }}" 
                                       placeholder="Invoice or receipt number">
                                @error('invoice_number')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                        </div>

                        <div class="row mb-3">
                            <div class="col-md-6">
                                <label for="expense_date" class="form-label">Expense Date <span class="text-danger">*</span></label>
                                <input type="date" class="form-control @error('expense_date') is-invalid @enderror" 
                                       id="expense_date" name="expense_date" value="{{ old('expense_date', $expense->expense_date->format('Y-m-d')) }}" required>
                                @error('expense_date')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                            <div class="col-md-6">
                                <label for="status" class="form-label">Status <span class="text-danger">*</span></label>
                                <select class="form-select @error('status') is-invalid @enderror" 
                                        id="status" name="status" required>
                                    @foreach(\App\Models\Expense::getStatuses() as $key => $label)
                                        <option value="{{ $key }}" {{ old('status', $expense->status) == $key ? 'selected' : '' }}>
                                            {{ $label }}
                                        </option>
                                    @endforeach
                                </select>
                                @error('status')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                                @if($expense->status != 'pending')
                                    <div class="form-text text-warning">
                                        <i class="bi bi-exclamation-triangle me-1"></i>
                                        Changing status may affect approval workflow
                                    </div>
                                @endif
                            </div>
                        </div>

                        <div class="mb-3">
                            <label for="receipt_file" class="form-label">Receipt/Invoice</label>
                            @if($expense->receipt_file)
                                <div class="mb-2">
                                    <small class="text-muted">Current file: </small>
                                    <a href="{{ Storage::url($expense->receipt_file) }}" target="_blank" class="text-decoration-none">
                                        <i class="bi bi-file-earmark-pdf me-1"></i>View Current Document
                                    </a>
                                </div>
                            @endif
                            <input type="file" class="form-control @error('receipt_file') is-invalid @enderror" 
                                   id="receipt_file" name="receipt_file" accept=".pdf,.jpg,.jpeg,.png">
                            <div class="form-text">Upload new receipt or invoice (PDF, JPG, PNG - Max 5MB). Leave empty to keep current file.</div>
                            @error('receipt_file')
                                <div class="invalid-feedback">{{ $message }}</div>
                            @enderror
                        </div>

                        <div class="d-flex justify-content-end gap-2">
                            <a href="{{ route('expenses.show', $expense) }}" class="btn btn-secondary">Cancel</a>
                            <button type="submit" class="btn btn-primary">
                                <i class="bi bi-check-circle me-1"></i>Update Expense
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>

        <div class="col-lg-4">
            <div class="card">
                <div class="card-header">
                    <h6 class="card-title mb-0">
                        <i class="bi bi-info-circle me-1"></i>Current Details
                    </h6>
                </div>
                <div class="card-body">
                    <div class="mb-3">
                        <h6 class="text-muted">Current Amount</h6>
                        <h4 class="text-danger">${{ number_format($expense->amount, 2) }}</h4>
                    </div>
                    
                    <div class="mb-3">
                        <h6 class="text-muted">Current Status</h6>
                        <span class="badge {{ $expense->status_badge_class }}">{{ ucfirst($expense->status) }}</span>
                        @if($expense->status == 'pending')
                            <br><small class="text-muted">Awaiting approval</small>
                        @elseif($expense->status == 'approved')
                            <br><small class="text-muted">Ready for payment</small>
                        @elseif($expense->status == 'paid')
                            <br><small class="text-muted">Payment completed</small>
                        @elseif($expense->status == 'rejected')
                            <br><small class="text-muted">Not approved</small>
                        @endif
                    </div>

                    <div class="mb-3">
                        <h6 class="text-muted">Created</h6>
                        <p class="small">{{ $expense->created_at->format('M d, Y g:i A') }}<br>
                        by {{ $expense->creator->name }}</p>
                    </div>

                    @if($expense->updated_at != $expense->created_at)
                        <div class="mb-3">
                            <h6 class="text-muted">Last Updated</h6>
                            <p class="small">{{ $expense->updated_at->format('M d, Y g:i A') }}<br>
                            by {{ $expense->updater->name }}</p>
                        </div>
                    @endif

                    @if($expense->approver)
                        <div class="mb-3">
                            <h6 class="text-muted">{{ $expense->status == 'rejected' ? 'Rejected' : 'Approved' }} By</h6>
                            <p class="small">{{ $expense->approver->name }}<br>
                            {{ $expense->approved_at->format('M d, Y g:i A') }}</p>
                            @if($expense->approval_notes)
                                <small class="text-muted">Notes: {{ $expense->approval_notes }}</small>
                            @endif
                        </div>
                    @endif
                </div>
            </div>

            <div class="card mt-3">
                <div class="card-header">
                    <h6 class="card-title mb-0">
                        <i class="bi bi-exclamation-triangle me-1"></i>Important Notes
                    </h6>
                </div>
                <div class="card-body">
                    <div class="small">
                        @if($expense->status == 'pending')
                            <div class="alert alert-warning py-2">
                                <i class="bi bi-clock me-1"></i>
                                This expense is pending approval. Changes may reset the approval process.
                            </div>
                        @elseif($expense->status == 'approved')
                            <div class="alert alert-info py-2">
                                <i class="bi bi-check-circle me-1"></i>
                                This expense has been approved. Major changes may require re-approval.
                            </div>
                        @elseif($expense->status == 'paid')
                            <div class="alert alert-success py-2">
                                <i class="bi bi-cash me-1"></i>
                                This expense has been paid. Changes should be minimal.
                            </div>
                        @elseif($expense->status == 'rejected')
                            <div class="alert alert-danger py-2">
                                <i class="bi bi-x-circle me-1"></i>
                                This expense was rejected. You can edit and resubmit for approval.
                            </div>
                        @endif
                    </div>
                </div>
            </div>

            <div class="card mt-3">
                <div class="card-header">
                    <h6 class="card-title mb-0">
                        <i class="bi bi-lightbulb me-1"></i>Tips
                    </h6>
                </div>
                <div class="card-body">
                    <div class="small">
                        <ul class="mb-0">
                            <li>Upload new documents to replace old ones</li>
                            <li>Keep vendor information updated</li>
                            <li>Changes are tracked for audit purposes</li>
                            <li>Status changes may affect workflow</li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection