@attribute [Route(Routes.EMBEDDINGS)]
@inherits MSGComponentBase
@using AIStudio.Provider

<MudStack Spacing="3" Class="pr-2 pb-4" Style="height: 100%; min-height: 0; overflow-y: auto;">
    <MudPaper Class="pa-4 border-dashed border rounded-lg" Elevation="0">
        <MudText Typo="Typo.h5">@T("Background embeddings")</MudText>
        <MudText Typo="Typo.body1" Class="mt-2">
            @T("AI Studio indexes local RAG data sources in the background. Finished files stay recorded so unchanged files can be skipped after a restart, while added or deleted files are detected during the next run. The same applies to documents without readable text, such as scanned pages: AI Studio remembers them and reads them again only once they change.")
        </MudText>
        <MudStack Row="true" Class="mt-3" Wrap="Wrap.Wrap" Spacing="2">
            <MudChip T="string" Color="Color.Success" Variant="Variant.Filled">@string.Format(T("Indexed files: {0}"), this.TotalIndexedFiles)</MudChip>
            <MudChip T="string" Color="Color.Info" Variant="Variant.Filled">@string.Format(T("Pending files: {0}"), this.TotalPendingFiles)</MudChip>
            <MudChip T="string" Color="Color.Default" Variant="Variant.Filled">@string.Format(T("Skipped files: {0}"), this.TotalPermanentlySkippedFiles)</MudChip>
            <MudChip T="string" Color="Color.Error" Variant="Variant.Filled">@string.Format(T("Failed files: {0}"), this.TotalFailedFiles)</MudChip>
        </MudStack>
    </MudPaper>

    @if (this.Statuses.Count == 0)
    {
        <MudAlert Severity="Severity.Info" Variant="Variant.Outlined">
            @T("No local data source has been queued for embedding yet.")
        </MudAlert>
    }
    else
    {
        @foreach (var status in this.Statuses)
        {
            <MudPaper Class="pa-4 border rounded-lg" Elevation="0">
                <MudStack Spacing="2">
                    <MudStack Row="true" Justify="Justify.SpaceBetween" AlignItems="AlignItems.Center">
                        <MudText Typo="Typo.h6">@status.DataSourceName</MudText>
                        <MudStack Row="true" Spacing="1" AlignItems="AlignItems.Center">
                            <MudChip T="string" Color="@GetStatusColor(status)" Variant="Variant.Filled">@status.StateLabel</MudChip>
                            @if (CanRefresh(status))
                            {
                                <MudTooltip Text="@T("Refresh this data source")">
                                    <MudIconButton Icon="@Icons.Material.Filled.Sync" Color="Color.Info" Size="Size.Small" OnClick="@(async () => await this.RefreshDataSource(status))" />
                                </MudTooltip>
                            }
                        </MudStack>
                    </MudStack>

                    <MudProgressLinear Value="@status.ProgressPercent" Rounded="@true" Color="@GetStatusColor(status)" />

                    <MudText Typo="Typo.body2">
                        @string.Format(T("{0} of {1} files are indexed."), status.IndexedFiles, status.TotalFiles)
                    </MudText>

                    @if (status.PermanentlySkippedFiles > 0)
                    {
                        <MudText Typo="Typo.body2">
                            @string.Format(T("Skipped files: {0}. AI Studio reads them again once they change."), status.PermanentlySkippedFiles)
                        </MudText>
                    }

                    @if (status.FailedFiles > 0)
                    {
                        <MudText Typo="Typo.body2">
                            @string.Format(T("Failed files: {0}"), status.FailedFiles)
                        </MudText>
                    }

                    @if (!string.IsNullOrWhiteSpace(status.CurrentFile))
                    {
                        <MudText Typo="Typo.body2">
                            @string.Format(T("Current file: {0}"), status.CurrentFile)
                        </MudText>
                    }

                    @if (status.Failures.Count > 0)
                    {
                        <MudExpansionPanels MultiExpansion="@false" Class="mt-2">
                            <ExpansionPanel HeaderIcon="@GetFailureListIcon(status)" HeaderText="@this.GetFailureListHeader(status)" MaxHeight="360">
                                <MudStack Spacing="2">
                                    @foreach (var failure in status.Failures)
                                    {
                                        <MudStack Spacing="1" Class="py-1">
                                            <MudText Typo="Typo.body2" Style="word-break: break-word;">
                                                @failure.FilePath
                                            </MudText>
                                            <MudText Typo="Typo.caption" Color="@(failure.IsPermanent ? Color.Default : Color.Warning)" Style="word-break: break-word;">
                                                @failure.Reason
                                            </MudText>
                                            <MudStack Row="@true" Wrap="Wrap.Wrap" Spacing="1" AlignItems="AlignItems.Center">
                                                @if (failure.IsPermanent)
                                                {
                                                    <MudChip T="string" Size="Size.Small" Color="Color.Default" Variant="Variant.Outlined">@T("Skipped until the file changes")</MudChip>
                                                }
                                                @if (failure.FailureReason is not ProviderRequestFailureReason.NONE)
                                                {
                                                    <MudChip T="string" Size="Size.Small" Color="Color.Warning" Variant="Variant.Outlined">@failure.FailureReason.GetName()</MudChip>
                                                }
                                                @if (!string.IsNullOrWhiteSpace(failure.EmbeddingProviderName))
                                                {
                                                    <MudText Typo="Typo.caption">@string.Format(T("Embedding provider: {0}"), failure.EmbeddingProviderName)</MudText>
                                                }
                                                @if (failure.OccurredAtUtc > DateTimeOffset.MinValue)
                                                {
                                                    <MudText Typo="Typo.caption">@failure.OccurredAtUtc.ToLocalTime().ToString("g")</MudText>
                                                }
                                                @if (failure.FailureReason.IsFixedInProviderSettings())
                                                {
                                                    <MudButton Variant="Variant.Text" Size="Size.Small" Color="Color.Primary" StartIcon="@Icons.Material.Filled.Settings" OnClick="@this.OpenEmbeddingProviderSettings">
                                                        @T("Open the settings")
                                                    </MudButton>
                                                }
                                            </MudStack>
                                        </MudStack>
                                    }
                                </MudStack>
                            </ExpansionPanel>
                        </MudExpansionPanels>
                    }

                    @*
                        Shown next to the list, not instead of it: the list says which files failed,
                        while this is the one sentence about the data source as a whole. Hiding it
                        as soon as a single file failed is what made it invisible in practice.
                    *@
                    @if (!string.IsNullOrWhiteSpace(status.LastError))
                    {
                        <MudAlert Severity="Severity.Warning" Variant="Variant.Text">
                            @status.LastError
                        </MudAlert>
                    }
                </MudStack>
            </MudPaper>
        }
    }
</MudStack>