@page "/admin/blog/create"
@attribute [Authorize]
@rendermode @(new InteractiveServerRenderMode(prerender: false))
@using TaxBaik.Application.DTOs
@using TaxBaik.Application.Services
@using TaxBaik.Domain.Interfaces
@inject BlogService BlogService
@inject ICategoryRepository CategoryRepository
@inject NavigationManager Navigation
@inject ISnackbar Snackbar

<PageTitle>새 포스트 작성</PageTitle>

<section class="admin-page-hero">
    <div>
        <MudText Typo="Typo.caption" Class="admin-eyebrow">Content</MudText>
        <MudText Typo="Typo.h4" Class="admin-page-title">새 포스트 작성</MudText>
        <MudText Typo="Typo.body2" Class="admin-page-subtitle">새로운 블로그 포스트를 작성합니다.</MudText>
    </div>
    <MudButton Variant="Variant.Outlined" StartIcon="@Icons.Material.Filled.Close" @onclick="GoBack">취소</MudButton>
</section>

<MudPaper Class="pa-4 mt-4" Elevation="1">
    <MudForm @ref="form">
        <MudTextField @bind-Value="model.Title" Label="제목 *"
            Variant="Variant.Outlined" Class="mb-4" Required="true" RequiredError="제목을 입력하세요." Counter="100" MaxLength="100" />

        <MudSelect T="int?" @bind-Value="model.CategoryId" Label="카테고리"
            Variant="Variant.Outlined" Class="mb-4">
            @foreach (var category in categories)
            {
                <MudSelectItem T="int?" Value="@((int?)category.Id)">@category.Name</MudSelectItem>
            }
        </MudSelect>

        <MudTabs Elevation="2" Rounded="true" ApplyEffectsToContainer="true" PanelClass="pa-4" Class="mb-4">
            <MudTabPanel Text="에디터" Icon="@Icons.Material.Filled.Edit">
                <MudTextField @bind-Value="model.Content" Label="본문 내용 *"
                    Variant="Variant.Outlined" Lines="15" Required="true" RequiredError="본문 내용을 입력하세요." Counter="10000" MaxLength="10000" HelperText="HTML 태그를 사용해 꾸밀 수 있습니다." />
            </MudTabPanel>
            <MudTabPanel Text="실시간 미리보기" Icon="@Icons.Material.Filled.Visibility">
                <div class="border rounded pa-4 article-body lh-lg" style="min-height: 330px; max-height: 500px; overflow-y: auto; background-color: #fafafa;">
                    @if (string.IsNullOrWhiteSpace(model.Content))
                    {
                        <p class="text-muted small text-center my-8">작성 중인 본문 내용이 이곳에 실시간으로 표시됩니다.</p>
                    }
                    else
                    {
                        @((MarkupString)model.Content)
                    }
                </div>
            </MudTabPanel>
        </MudTabs>

        <MudTextField @bind-Value="model.Tags" Label="태그 (쉼표로 구분)"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudTextField @bind-Value="model.SeoTitle" Label="SEO 제목"
            Variant="Variant.Outlined" Class="mb-4" />

        <MudTextField @bind-Value="model.SeoDescription" Label="SEO 설명"
            Variant="Variant.Outlined" Lines="3" Class="mb-4" />

        <MudCheckBox @bind-Checked="model.IsPublished" Label="즉시 발행" Class="mb-4" />

        <div class="d-flex gap-2">
            <MudButton Variant="Variant.Filled" Color="Color.Primary"
                @onclick="SavePost">저장</MudButton>
        </div>
    </MudForm>
</MudPaper>

@code {
    private MudForm? form;
    private List<Domain.Entities.Category> categories = [];
    private CreatePostModel model = new();

    protected override async Task OnInitializedAsync()
    {
        categories = (await CategoryRepository.GetAllAsync()).ToList();
    }

    private void GoBack()
    {
        Navigation.NavigateTo("/taxbaik/admin/blog");
    }

    private async Task SavePost()
    {
        if (form == null)
            return;

        await form.Validate();
        if (!form.IsValid)
            return;

        try
        {
            await BlogService.CreateAsync(new CreateBlogPostDto
            {
                Title = model.Title,
                Content = model.Content,
                CategoryId = model.CategoryId,
                Tags = model.Tags,
                SeoTitle = model.SeoTitle,
                SeoDescription = model.SeoDescription,
                IsPublished = model.IsPublished
            });

            Snackbar.Add("포스트가 저장되었습니다.", Severity.Success);
            Navigation.NavigateTo("/taxbaik/admin/blog");
        }
        catch (ValidationException ex)
        {
            Snackbar.Add(ex.Message, Severity.Error);
        }
    }

    private class CreatePostModel
    {
        public string Title { get; set; } = "";
        public string Content { get; set; } = "";
        public int? CategoryId { get; set; }
        public string? Tags { get; set; }
        public string? SeoTitle { get; set; }
        public string? SeoDescription { get; set; }
        public bool IsPublished { get; set; }
    }
}