Post Form Fields code

@props([
    'post' => null,
    'categories' => [],
    'publishedByDefault' => true,
])

@php
    $errorBag = isset($errors) ? $errors : new \Illuminate\Support\ViewErrorBag;

    /*
    | Shared blog post form fields for create and edit screens.
    | Wrap in a <form> and add <x-ui.form-actions> below.
    |
    | Usage:
    |   <form ...>
    |       @csrf
    |       <x-ui.post-form-fields :categories="$categories" />
    |       <x-ui.form-actions>...</x-ui.form-actions>
    |   </form>
    |
    |   <x-ui.post-form-fields :post="$post" :categories="$categories" />
    */
@endphp

<x-ui.field label="Title" for="title" :error="$errorBag->first('title')" required>
    <x-ui.input
        id="title"
        name="title"
        :value="old('title', $post?->title)"
        :placeholder="$post ? null : 'A catchy headline'"
        :invalid="$errorBag->has('title')"
    />
</x-ui.field>

<x-ui.field label="Category" for="category_id" :error="$errorBag->first('category_id')" optional>
    <x-ui.select
        id="category_id"
        name="category_id"
        :options="$categories"
        :selected="old('category_id', $post?->category_id)"
        placeholder="Uncategorized"
        :invalid="$errorBag->has('category_id')"
    />
</x-ui.field>

<x-ui.field label="Excerpt" for="excerpt" :error="$errorBag->first('excerpt')" hint="Shown in post lists and page metadata. Leave blank to fall back to the body." optional>
    <x-ui.textarea
        id="excerpt"
        name="excerpt"
        rows="3"
        :placeholder="$post ? null : 'A concise summary for readers.'"
        :invalid="$errorBag->has('excerpt')"
    >{{ old('excerpt', $post?->excerpt) }}</x-ui.textarea>
</x-ui.field>

<x-ui.field label="Body" for="body" :error="$errorBag->first('body')" required>
    <x-ui.textarea
        id="body"
        name="body"
        rows="12"
        :placeholder="$post ? null : 'Write your post...'"
        :invalid="$errorBag->has('body')"
    >{{ old('body', $post?->body) }}</x-ui.textarea>
</x-ui.field>

<x-ui.checkbox
    name="published"
    value="1"
    :checked="(bool) old('published', $post ? $post->status === \App\Models\Post::STATUS_PUBLISHED : $publishedByDefault)"
    :label="$post ? 'Published' : 'Publish immediately'"
/>