@using Butter.Dtos.Jobs
@using Butter.Types
@using MilkStream.Client.Services
@inject JobsService JobsService

<div class="@($"job-row {RowClass}")" style="padding-left: @(Level * 24 + 8)px">
    <div class="d-flex align-items-center gap-2 py-1 px-1 job-row-main rounded" @onclick="Toggle" role="button">
        <span class="flex-shrink-0">@((MarkupString)Icon)</span>
        <span class="text-truncate flex-grow-1 small" title="@Job.Name">@Job.Name</span>
        <span class="flex-shrink-0" title="@Job.Status.ToString()">
            <span class="d-inline-block rounded-circle" style="width: 8px; height: 8px; background: @DotColor"></span>
        </span>
        <span class="flex-shrink-0" style="width: 90px;">
            <ProgressBar Value="@Job.Progress" Color="@StatusColor" />
        </span>
        <span class="flex-shrink-0 text-muted small" style="width: 60px; text-align: right;">@Elapsed</span>
        @if (CanCancel) {
            <button class="btn btn-sm p-0 border-0 text-danger flex-shrink-0 lh-1" @onclick:stopPropagation @onclick="Cancel" title="Cancel">
                <i class="bi bi-x-lg" style="font-size: 0.75rem;"></i>
            </button>
        }
        <span class="flex-shrink-0 text-muted small @(Expanded ? "bi-chevron-up" : "bi-chevron-down")"></span>
    </div>
    @if (Expanded) {
        <div class="job-row-details small text-muted px-2 py-1" style="border-left: 2px solid @DotColor; margin-left: 16px;">
            <div class="d-flex flex-wrap gap-x-3 gap-y-0">
                <span>Created: @Job.Created.ToLocalTime().ToString("g")</span>
                @if (Job.Started.HasValue) {
                    <span>Started: @Job.Started.Value.ToLocalTime().ToString("g")</span>
                }
                @if (Job.Finished.HasValue) {
                    <span>Finished: @Job.Finished.Value.ToLocalTime().ToString("g")</span>
                }
                @if (Duration is not null) {
                    <span>Duration: @Duration.Value.ToString(@"h\:mm\:ss")</span>
                }
            </div>
            @if (!string.IsNullOrEmpty(Job.Message)) {
                <div class="mt-1" style="white-space: pre-wrap; word-break: break-word;">@Job.Message</div>
            }
        </div>
    }
</div>

@code {
    [Parameter] public required JobStatusDto Job { get; set; }
    [Parameter] public int Level { get; set; }

    bool Expanded;

    string Icon => Job.JobType switch {
        EJobType.FileSystemScan      => "<i class=\"bi bi-folder2-open\"></i>",
        EJobType.ThumbnailGeneration => "<i class=\"bi bi-pip\"></i>",
        EJobType.PreviewGeneration   => "<i class=\"bi bi-file-image\"></i>",
        EJobType.MetadataExtraction  => "<i class=\"bi bi-file-earmark-break\"></i>",
        EJobType.IntegrityCheck      => "<i class=\"bi bi-file-earmark-check\"></i>",
        EJobType.PHashGeneration     => "<i class=\"bi bi-hash\"></i>",
        _                             => "<i class=\"bi bi-question-circle\"></i>"
    };

    string RowClass => Job.Status switch {
        EJobStatus.Completed => "",
        EJobStatus.Failed    => "border-start border-2 border-danger",
        EJobStatus.Canceled  => "",
        _                   => ""
    };

    string DotColor => Job.Status switch {
        EJobStatus.Queued    => "#6c757d",
        EJobStatus.Running   => "#0d6efd",
        EJobStatus.Waiting   => "#0dcaf0",
        EJobStatus.Completed => "#198754",
        EJobStatus.Failed    => "#dc3545",
        EJobStatus.Canceled  => "#6c757d",
        _                    => "#6c757d"
    };

    string StatusColor => Job.Status switch {
        EJobStatus.Queued    => "secondary",
        EJobStatus.Running   => "primary",
        EJobStatus.Waiting   => "info",
        EJobStatus.Completed => "success",
        EJobStatus.Failed    => "danger",
        EJobStatus.Canceled  => "secondary",
        _                    => "secondary"
    };

    bool CanCancel => Job.Status is EJobStatus.Queued or EJobStatus.Running or EJobStatus.Waiting;

    string? Elapsed {
        get {
            var now = DateTime.Now;
            TimeSpan? ts = Job.Status switch {
                EJobStatus.Queued => now - Job.Created.ToLocalTime(),
                EJobStatus.Running or EJobStatus.Waiting when Job.Started.HasValue
                    => now - Job.Started.Value.ToLocalTime(),
                EJobStatus.Completed or EJobStatus.Failed or EJobStatus.Canceled when Job.Finished.HasValue && Job.Started.HasValue
                    => Job.Finished.Value.ToLocalTime() - Job.Started.Value.ToLocalTime(),
                EJobStatus.Completed or EJobStatus.Failed or EJobStatus.Canceled when Job.Finished.HasValue
                    => Job.Finished.Value.ToLocalTime() - Job.Created.ToLocalTime(),
                _ => null
            };
            return ts switch {
                null => null,
                { TotalMinutes: < 1 } => $"{(int)ts.Value.TotalSeconds}s",
                { TotalHours: < 1 } => $"{(int)ts.Value.TotalMinutes}m",
                _ => $"{(int)ts.Value.TotalHours}h {ts.Value.Minutes}m"
            };
        }
    }

    TimeSpan? Duration {
        get {
            if (Job.Started is null) return null;
            var end = Job.Finished ?? DateTime.UtcNow;
            return end.ToLocalTime() - Job.Started.Value.ToLocalTime();
        }
    }

    async Task Toggle() {
        Expanded = !Expanded;
    }

    async Task Cancel() {
        try {
            await JobsService.CancelJob(Job);
        } catch {
            // Silently handle — next poll will reflect actual state
        }
    }
}