@extends('layouts.app')
@section('title', $user->exists ? 'Edit User: ' . $user->name : 'Add New User')

@section('content')
<div class="container-fluid py-4">
    <div class="row justify-content-center">
        <div class="col-lg-8">
            <div class="d-flex align-items-center mb-4">
                <a href="{{ route('admin.users.index') }}" class="btn btn-outline-secondary btn-sm me-3">
                    <i class="bi bi-arrow-left"></i>
                </a>
                <div>
                    <h1 class="h3 mb-0">{{ $user->exists ? 'Edit User' : 'Add New User' }}</h1>
                    <p class="text-muted mb-0 small">
                        {{ $user->exists ? $user->email : 'Create a new system user and assign a role' }}
                    </p>
                </div>
            </div>

            @if ($user->exists && !empty($isLastAdmin) && $isLastAdmin)
            <div class="alert alert-warning border-0">
                <i class="bi bi-exclamation-triangle me-2"></i>
                <strong>Last Admin:</strong> This is the only active admin. The role cannot be changed and the account cannot be deactivated.
            </div>
            @endif

            <div class="card border-0 shadow-sm">
                <div class="card-body p-4">
                    <form method="POST"
                          action="{{ $user->exists ? route('admin.users.update', $user) : route('admin.users.store') }}">
                        @csrf
                        @if ($user->exists)
                            @method('PUT')
                        @endif

                        <div class="row g-3">
                            {{-- Name --}}
                            <div class="col-md-6">
                                <label for="name" class="form-label fw-semibold">Name <span class="text-danger">*</span></label>
                                <input type="text" name="name" id="name"
                                       class="form-control @error('name') is-invalid @enderror"
                                       value="{{ old('name', $user->name) }}" required>
                                @error('name') <div class="invalid-feedback">{{ $message }}</div> @enderror
                            </div>

                            {{-- Email --}}
                            <div class="col-md-6">
                                <label for="email" class="form-label fw-semibold">Email <span class="text-danger">*</span></label>
                                <input type="email" name="email" id="email"
                                       class="form-control @error('email') is-invalid @enderror"
                                       value="{{ old('email', $user->email) }}" required>
                                @error('email') <div class="invalid-feedback">{{ $message }}</div> @enderror
                            </div>

                            {{-- Phone --}}
                            <div class="col-md-6">
                                <label for="phone" class="form-label fw-semibold">Phone</label>
                                <input type="text" name="phone" id="phone"
                                       class="form-control @error('phone') is-invalid @enderror"
                                       value="{{ old('phone', $user->phone) }}">
                                @error('phone') <div class="invalid-feedback">{{ $message }}</div> @enderror
                            </div>

                            {{-- Role --}}
                            <div class="col-md-6">
                                <label for="role" class="form-label fw-semibold">Role <span class="text-danger">*</span></label>
                                <select name="role" id="role"
                                        class="form-select @error('role') is-invalid @enderror"
                                        {{ (!empty($isLastAdmin) && $isLastAdmin) ? 'disabled' : '' }}
                                        required>
                                    <option value="">Select Role</option>
                                    @foreach ($roles as $r)
                                    <option value="{{ $r }}"
                                            {{ old('role', strtolower($user->role?->name ?? '')) === $r ? 'selected' : '' }}>
                                        {{ ucfirst($r) }}
                                    </option>
                                    @endforeach
                                </select>
                                {{-- Hidden field when disabled so value is still submitted --}}
                                @if (!empty($isLastAdmin) && $isLastAdmin)
                                <input type="hidden" name="role" value="{{ strtolower($user->role?->name ?? 'admin') }}">
                                @endif
                                @error('role') <div class="invalid-feedback">{{ $message }}</div> @enderror
                                <div class="form-text">
                                    <strong>admin</strong> — full access &bull;
                                    <strong>manager</strong> — operations &bull;
                                    <strong>accountant</strong> — finance &bull;
                                    <strong>sales</strong> — sales &bull;
                                    <strong>store</strong> — inventory only
                                </div>
                            </div>

                            {{-- Password --}}
                            <div class="col-md-6">
                                <label for="password" class="form-label fw-semibold">
                                    Password
                                    @if ($user->exists)
                                        <span class="text-muted small">(leave blank to keep)</span>
                                    @else
                                        <span class="text-danger">*</span>
                                    @endif
                                </label>
                                <input type="password" name="password" id="password"
                                       class="form-control @error('password') is-invalid @enderror"
                                       {{ !$user->exists ? 'required' : '' }}>
                                @error('password') <div class="invalid-feedback">{{ $message }}</div> @enderror
                            </div>

                            {{-- Confirm Password --}}
                            <div class="col-md-6">
                                <label for="password_confirmation" class="form-label fw-semibold">Confirm Password</label>
                                <input type="password" name="password_confirmation" id="password_confirmation"
                                       class="form-control">
                            </div>
                        </div>

                        <hr class="my-4">

                        <div class="d-flex justify-content-between align-items-center">
                            <div>
                                @if ($user->exists)
                                <span class="text-muted small">
                                    Created {{ $user->created_at?->diffForHumans() }} &bull;
                                    Status: <strong>{{ $user->is_active ? 'Active' : 'Inactive' }}</strong>
                                </span>
                                @endif
                            </div>
                            <div class="d-flex gap-2">
                                <a href="{{ route('admin.users.index') }}" class="btn btn-outline-secondary">Cancel</a>
                                <button type="submit" class="btn btn-primary">
                                    <i class="bi bi-check-lg me-1"></i>
                                    {{ $user->exists ? 'Update User' : 'Create User' }}
                                </button>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection