corp-app/CORP-MAUI/Pages/PostDetailsPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:viewModels="clr-namespace:CORP_MAUI.ViewModels"
             xmlns:models="clr-namespace:CORP_MAUI.Models"
             xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit"
             x:Class="CORP_MAUI.Pages.PostDetailsPage"
             x:DataType="viewModels:PostDetailsViewModel"
             Title="Публикация"
             BackgroundColor="White">

    <Grid RowDefinitions="Auto,*">
        
        <!-- Шапка -->
        <Grid 
            Grid.Row="0"
            ColumnDefinitions="50,*,50"
            Padding="15,10"
            BackgroundColor="White">
            
            <!-- Кнопка назад -->
            <Border 
                Grid.Column="0"
                WidthRequest="40"
                HeightRequest="40"
                StrokeShape="RoundRectangle 20"
                BackgroundColor="Transparent"
                Stroke="Transparent"
                HorizontalOptions="Start">
                <Border.GestureRecognizers>
                    <TapGestureRecognizer Tapped="OnCloseClicked"/>
                </Border.GestureRecognizers>
                <Image 
                    Source="arrow_back.png"
                    WidthRequest="24"
                    HeightRequest="24"
                    HorizontalOptions="Center"
                    VerticalOptions="Center">
                    <Image.Behaviors>
                        <toolkit:IconTintColorBehavior TintColor="{StaticResource Primary}"/>
                    </Image.Behaviors>
                </Image>
            </Border>
            
            <!-- Заголовок -->
            <Label 
                Grid.Column="1"
                Text="Публикация"
                FontSize="18"
                FontAttributes="Bold"
                TextColor="{StaticResource Gray900}"
                HorizontalOptions="Center"
                VerticalOptions="Center"/>
            
            <!-- Пустое место справа -->
            <BoxView Grid.Column="2" Color="Transparent"/>
        </Grid>
        
        <!-- Контент -->
        <CollectionView 
            Grid.Row="1"
            x:Name="CommentsCollectionView"
            ItemsSource="{Binding Comments}"
            SelectionMode="None"
            BackgroundColor="Transparent">
            
            <CollectionView.Header>
                <VerticalStackLayout>
                    <Border Style="{StaticResource CardBorderLarge}" Margin="10,10,10,5">
                        <VerticalStackLayout Spacing="15">
                            
                            <!-- Автор и дата -->
                            <Grid ColumnDefinitions="50,*">
                                <Border Grid.Column="0" Style="{StaticResource AvatarSmall}">
                                    <Image Source="{Binding PostViewModel.Post.Author.DisplayAvatarSource}" Aspect="AspectFill"/>
                                </Border>
                                <VerticalStackLayout Grid.Column="1" VerticalOptions="Center" Spacing="2" Margin="10,0,0,0">
                                    <Label Text="{Binding PostViewModel.Post.Author.FullName}" Style="{StaticResource CardSubtitle}"/>
                                    <Label Text="{Binding PostViewModel.Post.DisplayDate, StringFormat='{0:dd.MM.yyyy HH:mm}'}" Style="{StaticResource CardMeta}"/>
                                </VerticalStackLayout>
                            </Grid>
                            
                            <!-- Заголовок -->
                            <Label Text="{Binding PostViewModel.Post.Title}"
                                   Style="{StaticResource CardTitle}"
                                   FontSize="20"/>

                            <!-- Изображение -->
                            <Image Aspect="AspectFit"
                                   MinimumHeightRequest="200"
                                   BackgroundColor="{StaticResource Gray200}"
                                   Source="{Binding PostViewModel.DisplayImageSource}"
                                   IsVisible="{Binding PostViewModel.IsImageVisible}"/>

                            <!-- Полный текст -->
                            <Label Text="{Binding PostViewModel.Post.Content}"
                                   Style="{StaticResource CardText}"
                                   FontSize="15"
                                   LineHeight="1.3"/>
                            
                            <!-- Статистика -->
                            <HorizontalStackLayout Spacing="20" Margin="0,5,0,0">
                                <HorizontalStackLayout Spacing="5">
                                    <Image Source="like.png" WidthRequest="18" HeightRequest="18" VerticalOptions="Center">
                                        <Image.Behaviors>
                                            <toolkit:IconTintColorBehavior TintColor="{StaticResource Primary}"/>
                                        </Image.Behaviors>
                                    </Image>
                                    <Label Text="{Binding PostViewModel.Post.LikesCount}" Style="{StaticResource CardMeta}" VerticalOptions="Center"/>
                                </HorizontalStackLayout>
                                <HorizontalStackLayout Spacing="5">
                                    <Image Source="messages.png" WidthRequest="18" HeightRequest="18" VerticalOptions="Center">
                                        <Image.Behaviors>
                                            <toolkit:IconTintColorBehavior TintColor="{StaticResource Primary}"/>
                                        </Image.Behaviors>
                                    </Image>
                                    <Label Text="{Binding PostViewModel.Post.CommentsCount}" Style="{StaticResource CardMeta}" VerticalOptions="Center"/>
                                </HorizontalStackLayout>
                            </HorizontalStackLayout>
                            
                        </VerticalStackLayout>
                    </Border>
                    
                    <!-- Заголовок комментариев -->
                    <Label Text="Комментарии" Style="{StaticResource SectionTitle}" Margin="15,15,15,5"/>
                    
                    <!-- Индикатор загрузки комментариев -->
                    <ActivityIndicator IsRunning="{Binding IsLoadingComments}" 
                                       IsVisible="{Binding IsLoadingComments}"
                                       Color="{StaticResource Primary}"
                                       HorizontalOptions="Center"
                                       Margin="0,10"/>
                </VerticalStackLayout>
            </CollectionView.Header>
            
            <CollectionView.EmptyView>
                <VerticalStackLayout Padding="20" Spacing="10" IsVisible="{Binding IsNotLoadingComments}">
                    <Label Text="Нет комментариев" 
                           HorizontalOptions="Center" 
                           Style="{StaticResource EmptyStateTitle}"/>
                </VerticalStackLayout>
            </CollectionView.EmptyView>

            <CollectionView.ItemTemplate>
                <DataTemplate x:DataType="models:Comment">
                    <Border 
                        Style="{StaticResource CardBorder}"
                        Margin="10,5">
                        
                        <VerticalStackLayout Spacing="8">
                            <Grid ColumnDefinitions="35,*">
                                <Border Grid.Column="0" Style="{StaticResource AvatarSmall}" WidthRequest="35" HeightRequest="35">
                                    <Image Source="{Binding Author.DisplayAvatarSource}" Aspect="AspectFill"/>
                                </Border>
                                <VerticalStackLayout Grid.Column="1" VerticalOptions="Center" Spacing="2" Margin="8,0,0,0">
                                    <Label Text="{Binding Author.FullName}" Style="{StaticResource CardSubtitle}" FontSize="13"/>
                                    <Label Text="{Binding DisplayDate, StringFormat='{0:dd.MM.yyyy HH:mm}'}" Style="{StaticResource CardMeta}" FontSize="11"/>
                                </VerticalStackLayout>
                            </Grid>
                            
                            <Label Text="{Binding DisplayContent}" Style="{StaticResource CardText}"/>
                        </VerticalStackLayout>
                    </Border>
                </DataTemplate>
            </CollectionView.ItemTemplate>
        </CollectionView>
    </Grid>

</ContentPage>