@page "/ViewMedia"
@using HyperBooru.Util
@inject IJSRuntime jsRuntime
@inject IDbContextFactory<HBContext> dbFactory
@inject ITagService tagService
@inject IMediaService mediaService
@inject ISourceService sourceService
@attribute [Authorize]

<PageTitle>@title</PageTitle>

<script suppress-warning="BL9992">
    function toggleSidebar() {
        document.getElementById("hcontainer").classList.toggle("hide-metadata");
    }

	function setMobilePane(pane) {
		var panes = Array.from(document.querySelectorAll('[class^="mobile-pane-"]'));

		panes.forEach(e => e.classList.remove('visible'));
		panes
			.filter(e => e.classList.contains(`mobile-pane-${pane}`))
			.forEach(e => e.classList.add('visible'));
	}

	function pageKeyDownHandler(e) {
		if(!e.ctrlKey && !e.metaKey && !e.altKey && !e.shiftKey && !e.isComposing)
			if(e.key == 's')
				toggleSidebar();
	}
</script>

<div id="vcontainer">
	<div id="hcontainer">
		<div id="image-container" class="mobile-pane-image visible">
			<img
				src="/media/@(media.Guid)"
				width=@media.CurrentUploadedFile.Width
				height=@media.CurrentUploadedFile.Height/>
		</div>
		<div id="metadata-show-button">
			<a href="javascript:toggleSidebar();" title="Toggle sidebar (S)"></a>
		</div>
		<div id="metadata" class="mobile-pane-metadata">
			<div id="metadata-container">
				<div id="metadata-fileinfo">
					@if(infoEditMode) {
						<form action="javascript:;" @onsubmit=@(() => ApplyInfoEdit(true))>
							<table id="edit-metadata">
								<tr>
									<td>Title:</td>
									<td><input type="text" @bind=shortDescription @ref=shortDescriptionInput/></td>
								</tr>
								<tr>
									<td>Description:</td>
									<td><textarea rows="4" @bind=longDescription/></td>
								</tr>
							</table>
						</form>
					} else {
						<p>Title: <i>@(media.ShortDescription ?? "None")</i></p>
						<p class="newlines">Description:<br/><i>@(media.LongDescription ?? "None")</i></p>
					}
					<p>Resolution: @(media.CurrentUploadedFile.Width)x@(media.CurrentUploadedFile.Height)</p>
					<p class="heading">Upload history</p>
					<hr/>
					<table id="uploaded-files" class="data-table">
						<tr>
							<th>Created On</th>
							<th>Last Write</th>
							<th>Uploaded On</th>
							<th>Filename</th>
							<th>Size</th>
							<th>Original Checksum</th>
						</tr>
						@foreach(var file in media.UploadedFiles.OrderByDescending(uf => uf.UploadTime)) {
							string? sourceUrl = null;
							if(file.Filename is not null)
								sourceUrl = sourceService.GetUrlFromFilename(file.Filename);
							<tr>
								<td title=@file.CreateTime?.ToString()>
									@(file.CreateTime?.ToString("d") ?? "N/A")
								</td>
								<td title=@file.LastWriteTime?.ToString()>
									@(file.LastWriteTime?.ToString("d") ?? "N/A")
								</td>
								<td title=@file.UploadTime>@(file.UploadTime.ToString("d"))</td>
								<td title=@(file.Path is not null ? $"{file.Path.Replace('\\', '/')}/{file.Filename}" : file.Filename)>
									@if(sourceUrl is not null) {
										<a class="nondecorated" target="_blank" href=@sourceUrl>@file.Filename</a>
									} else {
										@file.Filename
									}
								</td>
								<td title=@file.Length>@file.Length.ToBytesSI()</td>
								<td
									title=@(file.Checksum + (file.ChecksumVerified ? " (verified)" : ""))
									class=@(file.ChecksumVerified ? "verified" : null)>
									
									@file.Checksum.Substring(0, 8)
								</td>
							</tr>
						}
					</table>
				</div>
				<div id="metadata-tags">
					<p class="heading">Tags</p>
					<hr/>
					<MediaTagTable Media=media @ref=mediaTagTable/>
				</div>
			</div>
			<div id="button-container">
				<ButtonContainer>
					<button @onclick=@(() => deleteDialog.Show()) class="warning" data-keyboard-shortcut="d">
						<img src="/images/trash.svg"/>
						<p><u>D</u>elete</p>
					</button>
					<button @onclick=@(() => tagDialog.Show()) class="secondary" data-keyboard-shortcut="t">
						<img src="/images/tag.svg"/>
						<p>Add <u>T</u>ag</p>
					</button>
					<button @onclick=@(() => ocrDialog.Show()) class="secondary" data-keyboard-shortcut="o">
						<img src="/images/book.svg"/>
						<p>View <u>O</u>CR</p>
					</button>
					@if(infoEditMode) {
						<button @onclick=@(() => ApplyInfoEdit(false)) class="secondary">
							<img src="/images/cross.svg"/>
							<p>Cancel</p>
						</button>
						<button @onclick=@(() => ApplyInfoEdit(true))>
							<img src="/images/checkmark.svg"/>
							<p>Apply</p>
						</button>
					} else {
						<button @onclick=@(() => InfoEditMode = true) class="secondary" data-keyboard-shortcut="e">
							<img src="/images/edit.svg"/>
							<p><u>E</u>dit Info</p>
						</button>
					}
					@if(media.IsIngest) {
						<button @onclick=@(() => SetIngest(false)) data-keyboard-shortcut="c">
							<img src="/images/checkmark.svg"/>
							<p>Mark Tagging <u>C</u>omplete</p>
						</button>
					} else {
						<button class="secondary" @onclick=@(() => SetIngest(true)) data-keyboard-shortcut="c">
							<img src="/images/cross.svg"/>
							<p>Mark Tagging In<u>c</u>omplete</p>
						</button>
					}
				</ButtonContainer>
			</div>
		</div>
	</div>
	<div id="bottom-bar">
		<img onclick="setMobilePane('image');" src="/images/photo.svg" width="25" height="25"/>
		<img onclick="setMobilePane('metadata');" src="/images/info.svg" width="25" height="25"/>
	</div>
</div>

<Dialog Title="Delete this media?" @ref=deleteDialog>
    <ButtonContainer>
        <button @onclick=@(() => deleteDialog.Hide()) class="secondary">Cancel</button>
        <button @onclick=DeleteMedia class="warning">Confirm</button>
    </ButtonContainer>
</Dialog>

<Dialog Title="OCR Data" @ref=ocrDialog>
    @if(media.OcrData is null) {
        <p><center>This media item hasn't been scanned yet!</center></p>
    } else {
        <code style="max-height:400px;">@media.OcrData?.Text</code>
    }
    <ButtonContainer>
        <button @onclick=@(() => ocrDialog.Hide())>Close</button>
    </ButtonContainer>
</Dialog>

<TagSelectDialog
    Title="Select one or more tag(s) to add"
    OnSubmit=AddTags
    @ref=tagDialog/>

@code {
    [Parameter]
    [SupplyParameterFromQuery(Name = "m")]
    public Guid MediaId { get; set; }

    private Media media;

    private string title;

    private bool    infoEditMode = false;
    private string? shortDescription;
    private string? longDescription;

    private MediaTagTable   mediaTagTable;
    private Dialog          deleteDialog;
    private Dialog          ocrDialog;
    private TagSelectDialog tagDialog;

    private ElementReference shortDescriptionInput;

    protected override void OnInitialized() =>
        LoadMedia();

    protected override async void OnAfterRender(bool firstRender) {
        if(infoEditMode)
            await shortDescriptionInput.FocusAsync();
    }

    private void LoadMedia() {
        using var db = dbFactory.CreateDbContext();
        media = db.Media
            .Include(m => m.Tags)
            .ThenInclude(t => t.TagDefinition)
            .Include(m => m.CurrentUploadedFile)
            .Include(m => m.UploadedFiles)
            .Include(m => m.OcrData)
            .First(m => m.Guid == MediaId);

        title = media.DisplayName ?? "Media View";
    }

    private void AddTags(TagDefinition[] tagDefs) {
        foreach(var tagDef in tagDefs)
            tagService.AddTag(media, tagDef);
        mediaTagTable.Refresh();
    }

    private async void SetIngest(bool ingest) {
        mediaService.SetIngest(media, ingest);
        LoadMedia();

        if(ingest)
            StateHasChanged();
        else
            await jsRuntime.InvokeVoidAsync("history.back");
    }

    private bool InfoEditMode {
        get => infoEditMode;
        set {
            shortDescription = media.ShortDescription;
            longDescription  = media.LongDescription;
            infoEditMode     = value;
            StateHasChanged();
        }
    }

    private void ApplyInfoEdit(bool apply) {
        if(apply) {
            mediaService.SetDescription(media, shortDescription, longDescription);
            LoadMedia();
        }

        infoEditMode = false;
    }

    private async void DeleteMedia() {
        mediaService.Delete(media);
        await jsRuntime.InvokeVoidAsync("history.back");
    }
}