feat(discovery): schedule saved-search alerts

.env.example

@@ -104,6 +104,8 @@ EMAIL_FOLLOWUPREMINDERS_ENABLED=false
 EMAIL_FOLLOWUPREMINDERS_UPCOMINGDAYS=2
 WORKER_RULES_ENABLED=false
 WORKER_FOLLOWUP_REMINDERS_ENABLED=false
+WORKER_SAVED_SEARCH_ALERTS_ENABLED=true
+SAVED_SEARCH_INTERVAL_HOURS=6
 WORKER_DAILY_EXPORT_ENABLED=false
 WORKER_JOB_ENRICHMENT_ENABLED=false
 

JobTrackerApi.Tests/JobDiscoveryControllerTests.cs

@@ -3,6 +3,7 @@ using System.Net;
 using System.Text;
 using JobTrackerApi.Controllers;
 using JobTrackerApi.Data;
+using JobTrackerApi.Models;
 using JobTrackerApi.Services;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
@@ -25,7 +26,7 @@ public sealed class JobDiscoveryControllerTests
         var result = await controller.Search("backend", "oslo", CancellationToken.None);
 
         var ok = Assert.IsType<OkObjectResult>(result.Result);
-        var job = Assert.Single(Assert.IsAssignableFrom<IReadOnlyList<JobDiscoveryController.DiscoveredJob>>(ok.Value));
+        var job = Assert.Single(Assert.IsAssignableFrom<IReadOnlyList<DiscoveredJob>>(ok.Value));
         Assert.Equal("Backend Developer", job.Title);
         Assert.Equal("nav", job.Source);
         Assert.Equal("NAV Arbeidsplassen", job.SourceName);
@@ -46,7 +47,7 @@ public sealed class JobDiscoveryControllerTests
         var result = await controller.Search(null, null, CancellationToken.None);
 
         var ok = Assert.IsType<OkObjectResult>(result.Result);
-        var job = Assert.Single(Assert.IsAssignableFrom<IReadOnlyList<JobDiscoveryController.DiscoveredJob>>(ok.Value));
+        var job = Assert.Single(Assert.IsAssignableFrom<IReadOnlyList<DiscoveredJob>>(ok.Value));
         Assert.Equal("1", job.Id);
         Assert.Equal("Current title", job.Title);
     }
@@ -71,6 +72,8 @@ public sealed class JobDiscoveryControllerTests
         Assert.IsType<NoContentResult>(await controller.DismissSavedSearchResult(created.Id, "job-1", new(true), default));
         var listed = Assert.IsAssignableFrom<IReadOnlyList<JobDiscoveryController.SavedSearchDto>>(Assert.IsType<OkObjectResult>((await controller.ListSavedSearches(default)).Result).Value);
         Assert.Equal(1, Assert.Single(listed).DismissedCount);
+        var paused = Assert.IsType<JobDiscoveryController.SavedSearchDto>(Assert.IsType<OkObjectResult>((await controller.UpdateSavedSearch(created.Id, new(false), default)).Result).Value);
+        Assert.False(paused.IsActive);
     }
 
     private sealed class ClientFactory(HttpClient client) : IHttpClientFactory

JobTrackerApi.Tests/SavedJobSearchAlertTests.cs

@@ -0,0 +1,98 @@
+using JobTrackerApi.Data;
+using JobTrackerApi.Models;
+using JobTrackerApi.Services;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging.Abstractions;
+using Moq;
+using Xunit;
+
+namespace JobTrackerApi.Tests;
+
+public sealed class SavedJobSearchAlertTests
+{
+    [Fact]
+    public async Task Worker_establishes_baseline_then_notifies_only_for_later_results()
+    {
+        var clock = new MutableTimeProvider(new DateTimeOffset(2026, 8, 31, 8, 0, 0, TimeSpan.Zero));
+        var discovery = new FakeDiscovery(clock, "job-1");
+        var configuration = new ConfigurationBuilder().AddInMemoryCollection(new Dictionary<string, string?>
+        {
+            ["Workers:SavedJobSearchAlertsEnabled"] = "true",
+            ["JobDiscovery:SavedSearchIntervalHours"] = "6"
+        }).Build();
+        var services = new ServiceCollection();
+        var databaseName = Guid.NewGuid().ToString();
+        services.AddLogging();
+        services.AddHttpContextAccessor();
+        services.AddSingleton<IConfiguration>(configuration);
+        services.AddSingleton<TimeProvider>(clock);
+        services.AddSingleton<IJobDiscoverySearchService>(discovery);
+        services.AddScoped<CurrentUserService>();
+        services.AddScoped<ICurrentUserService>(provider => provider.GetRequiredService<CurrentUserService>());
+        services.AddDbContext<JobTrackerContext>((_, options) => options.UseInMemoryDatabase(databaseName));
+        services.AddScoped<SavedJobSearchRunner>();
+        services.AddSingleton<BackgroundTenantRunner>();
+        await using var provider = services.BuildServiceProvider();
+
+        await using (var scope = provider.CreateAsyncScope())
+        {
+            var db = scope.ServiceProvider.GetRequiredService<JobTrackerContext>();
+            db.SavedJobSearches.Add(new SavedJobSearch
+            {
+                OwnerUserId = "owner-without-jobs",
+                Name = "Backend Oslo",
+                Query = "backend",
+                Location = "Oslo",
+                CreatedAtUtc = clock.GetUtcNow(),
+                UpdatedAtUtc = clock.GetUtcNow()
+            });
+            await db.SaveChangesAsync();
+        }
+
+        var worker = new SavedJobSearchAlertHostedService(
+            provider.GetRequiredService<BackgroundTenantRunner>(),
+            configuration,
+            NullLogger<SavedJobSearchAlertHostedService>.Instance,
+            Mock.Of<IStartupReadiness>(),
+            clock);
+
+        Assert.Equal(new BackgroundWorkerRunResult(true, 1, 1, 0), await worker.RunOnceAsync(default));
+        await using (var scope = provider.CreateAsyncScope())
+        {
+            var db = scope.ServiceProvider.GetRequiredService<JobTrackerContext>();
+            Assert.Empty(await db.UserNotifications.IgnoreQueryFilters().ToListAsync());
+            Assert.Single(await db.SavedJobSearchResults.IgnoreQueryFilters().ToListAsync());
+        }
+
+        clock.SetUtcNow(clock.GetUtcNow().AddHours(7));
+        discovery.Ids.Add("job-2");
+        Assert.Equal(new BackgroundWorkerRunResult(true, 1, 1, 0), await worker.RunOnceAsync(default));
+
+        await using var verification = provider.CreateAsyncScope();
+        var notification = Assert.Single(await verification.ServiceProvider.GetRequiredService<JobTrackerContext>()
+            .UserNotifications.IgnoreQueryFilters().AsNoTracking().ToListAsync());
+        Assert.Equal("owner-without-jobs", notification.OwnerUserId);
+        Assert.Equal("saved_search_results", notification.Kind);
+        Assert.Equal("/discover", notification.LinkPath);
+        Assert.Contains("Backend Oslo", notification.Message);
+    }
+
+    private sealed class FakeDiscovery(MutableTimeProvider clock, params string[] ids) : IJobDiscoverySearchService
+    {
+        public List<string> Ids { get; } = [.. ids];
+
+        public Task<IReadOnlyList<DiscoveredJob>> SearchAsync(string? query, string? location, CancellationToken cancellationToken) =>
+            Task.FromResult<IReadOnlyList<DiscoveredJob>>(Ids.Select(id => new DiscoveredJob(
+                id, "Backend Developer", "Acme", "Oslo", clock.GetUtcNow(), null,
+                $"https://example.test/{id}", "nav", "NAV Arbeidsplassen", "searched", clock.GetUtcNow(), "NO")).ToList());
+    }
+
+    private sealed class MutableTimeProvider(DateTimeOffset now) : TimeProvider
+    {
+        private DateTimeOffset _now = now;
+        public override DateTimeOffset GetUtcNow() => _now;
+        public void SetUtcNow(DateTimeOffset value) => _now = value;
+    }
+}

JobTrackerApi/Controllers/JobDiscoveryController.cs

@@ -1,4 +1,3 @@
-using System.Net.Http.Headers;
 using System.Text.Json;
 using JobTrackerApi.Data;
 using JobTrackerApi.Models;
@@ -15,10 +14,8 @@ namespace JobTrackerApi.Controllers;
 [Authorize(AuthenticationSchemes = "local")]
 public sealed class JobDiscoveryController : ControllerBase
 {
-    private const string BaseUrl = "https://pam-stilling-feed.nav.no";
-    private readonly IHttpClientFactory _clients;
-    private readonly IConfiguration _configuration;
-    private readonly IMemoryCache _cache;
+    private readonly IJobDiscoverySearchService _discovery;
+    private readonly SavedJobSearchRunner? _savedSearchRunner;
     private readonly JobTrackerContext? _db;
     private readonly ICurrentUserService? _currentUser;
 
@@ -27,11 +24,12 @@ public sealed class JobDiscoveryController : ControllerBase
         IConfiguration configuration,
         IMemoryCache cache,
         JobTrackerContext? db = null,
-        ICurrentUserService? currentUser = null)
+        ICurrentUserService? currentUser = null,
+        IJobDiscoverySearchService? discovery = null,
+        SavedJobSearchRunner? savedSearchRunner = null)
     {
-        _clients = clients;
-        _configuration = configuration;
-        _cache = cache;
+        _discovery = discovery ?? new NavJobDiscoverySearchService(clients, configuration, cache, TimeProvider.System);
+        _savedSearchRunner = savedSearchRunner;
         _db = db;
         _currentUser = currentUser;
     }
@@ -41,7 +39,7 @@ public sealed class JobDiscoveryController : ControllerBase
     {
         try
         {
-            return Ok(await SearchCoreAsync(q, location, cancellationToken));
+            return Ok(await _discovery.SearchAsync(q, location, cancellationToken));
         }
         catch (Exception ex) when (ex is HttpRequestException or JsonException or InvalidOperationException)
         {
@@ -86,6 +84,19 @@ public sealed class JobDiscoveryController : ControllerBase
         return NoContent();
     }
 
+    [HttpPatch("saved-searches/{id:int}")]
+    public async Task<ActionResult<SavedSearchDto>> UpdateSavedSearch(int id, [FromBody] UpdateSavedSearchRequest request, CancellationToken cancellationToken)
+    {
+        if (!TryGetPersistence(out var db, out var owner)) return Unauthorized();
+        var search = await db.SavedJobSearches.Include(x => x.Results)
+            .FirstOrDefaultAsync(x => x.Id == id && x.OwnerUserId == owner, cancellationToken);
+        if (search is null) return NotFound();
+        search.IsActive = request.IsActive;
+        search.UpdatedAtUtc = DateTimeOffset.UtcNow;
+        await db.SaveChangesAsync(cancellationToken);
+        return Ok(ToDto(search));
+    }
+
     [HttpPost("saved-searches/{id:int}/run")]
     public async Task<ActionResult<SavedSearchRunDto>> RunSavedSearch(int id, CancellationToken cancellationToken)
     {
@@ -95,26 +106,10 @@ public sealed class JobDiscoveryController : ControllerBase
 
         try
         {
-            var jobs = await SearchCoreAsync(search.Query, search.Location, cancellationToken);
-            var now = DateTimeOffset.UtcNow;
-            var existing = search.Results.ToDictionary(x => x.ExternalJobId, StringComparer.OrdinalIgnoreCase);
-            var results = new List<SavedSearchJobDto>(jobs.Count);
-            foreach (var job in jobs)
-            {
-                var isNew = !existing.TryGetValue(job.Id, out var state);
-                if (state is null)
-                {
-                    state = new SavedJobSearchResult { ExternalJobId = job.Id, FirstSeenAtUtc = now, LastSeenAtUtc = now };
-                    search.Results.Add(state);
-                }
-                else state.LastSeenAtUtc = now;
-                results.Add(new SavedSearchJobDto(job, isNew, state.IsDismissed));
-            }
-
-            search.LastRunAtUtc = now;
-            search.UpdatedAtUtc = now;
+            var runner = _savedSearchRunner ?? new SavedJobSearchRunner(db, _discovery, TimeProvider.System);
+            var run = await runner.RunAsync(search, cancellationToken);
             await db.SaveChangesAsync(cancellationToken);
-            return Ok(new SavedSearchRunDto(ToDto(search), results));
+            return Ok(new SavedSearchRunDto(ToDto(search), run.Jobs.Select(item => new SavedSearchJobDto(item.Job, item.IsNew, item.IsDismissed)).ToList()));
         }
         catch (Exception ex) when (ex is HttpRequestException or JsonException or InvalidOperationException)
         {
@@ -141,79 +136,8 @@ public sealed class JobDiscoveryController : ControllerBase
         return db is not null && owner.Length > 0;
     }
 
-    private async Task<List<DiscoveredJob>> SearchCoreAsync(string? q, string? location, CancellationToken cancellationToken)
-    {
-        var retrievedAt = DateTimeOffset.UtcNow;
-        var token = await GetTokenAsync(cancellationToken);
-        var client = _clients.CreateClient();
-        var entries = new Dictionary<string, DiscoveredJob>(StringComparer.OrdinalIgnoreCase);
-        var next = "/api/v1/feed";
-        for (var page = 0; page < 20 && !string.IsNullOrWhiteSpace(next); page++)
-        {
-            using var request = new HttpRequestMessage(HttpMethod.Get, BaseUrl + next);
-            request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
-            request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
-            if (page == 0) request.Headers.IfModifiedSince = DateTimeOffset.UtcNow.AddDays(-14);
-            using var response = await client.SendAsync(request, cancellationToken);
-            response.EnsureSuccessStatusCode();
-            using var json = JsonDocument.Parse(await response.Content.ReadAsStreamAsync(cancellationToken));
-            next = json.RootElement.TryGetProperty("next_url", out var nextElement) ? nextElement.GetString() ?? "" : "";
-            foreach (var item in json.RootElement.GetProperty("items").EnumerateArray())
-            {
-                var feed = item.GetProperty("_feed_entry");
-                var jobId = feed.GetProperty("uuid").GetString();
-                if (string.IsNullOrWhiteSpace(jobId)) continue;
-                var status = feed.TryGetProperty("status", out var statusElement) ? statusElement.GetString() : null;
-                if (!string.Equals(status, "ACTIVE", StringComparison.OrdinalIgnoreCase)) { entries.Remove(jobId); continue; }
-                entries[jobId] = new DiscoveredJob(jobId,
-                    feed.TryGetProperty("title", out var title) ? title.GetString() ?? "" : "",
-                    feed.TryGetProperty("businessName", out var company) ? company.GetString() : null,
-                    feed.TryGetProperty("municipal", out var municipal) ? municipal.GetString() : null,
-                    item.TryGetProperty("date_modified", out var modified) && modified.TryGetDateTimeOffset(out var date) ? date : null,
-                    feed.TryGetProperty("applicationDue", out var due) && due.TryGetDateTimeOffset(out var deadline) ? deadline : null,
-                    $"https://arbeidsplassen.nav.no/stillinger/stilling/{jobId}", "nav", "NAV Arbeidsplassen", "searched", retrievedAt, "NO");
-            }
-        }
-        var query = (q ?? "").Trim();
-        var place = (location ?? "").Trim();
-        return entries.Values.Where(job => Contains(job.Title, query) || Contains(job.Company, query))
-            .Where(job => Contains(job.Location, place)).OrderByDescending(job => job.ModifiedAt).Take(100).ToList();
-    }
-
-    private async Task<string> GetTokenAsync(CancellationToken cancellationToken)
-    {
-        var configured = _configuration["NavJobs:Token"]?.Trim();
-        if (!string.IsNullOrWhiteSpace(configured)) return configured;
-
-        return await _cache.GetOrCreateAsync("nav-jobs-public-token", async entry =>
-        {
-            entry.AbsoluteExpirationRelativeToNow = TimeSpan.FromMinutes(30);
-            var text = await _clients.CreateClient().GetStringAsync(BaseUrl + "/api/publicToken", cancellationToken);
-            var start = text.IndexOf("eyJ", StringComparison.Ordinal);
-            if (start < 0) throw new InvalidOperationException("NAV public token was not returned.");
-            var token = text[start..].Trim();
-            var end = token.IndexOfAny(['\r', '\n', ' ', '\t']);
-            return end < 0 ? token : token[..end];
-        }) ?? throw new InvalidOperationException("NAV public token was not returned.");
-    }
-
-    private static bool Contains(string? value, string filter) =>
-        filter.Length == 0 || (value?.Contains(filter, StringComparison.OrdinalIgnoreCase) ?? false);
-
-    public sealed record DiscoveredJob(
-        string Id,
-        string Title,
-        string? Company,
-        string? Location,
-        DateTimeOffset? ModifiedAt,
-        DateTimeOffset? Deadline,
-        string Url,
-        string Source,
-        string SourceName,
-        string AcquisitionType,
-        DateTimeOffset RetrievedAt,
-        string CountryCode);
     public sealed record SavedSearchRequest(string? Name, string? Query, string? Location);
+    public sealed record UpdateSavedSearchRequest(bool IsActive);
     public sealed record DismissRequest(bool IsDismissed);
     public sealed record SavedSearchDto(int Id, string Name, string Query, string Location, bool IsActive, DateTimeOffset? LastRunAtUtc, int ResultCount, int DismissedCount);
     public sealed record SavedSearchJobDto(DiscoveredJob Job, bool IsNew, bool IsDismissed);

JobTrackerApi/Models/DiscoveredJob.cs

@@ -0,0 +1,15 @@
+namespace JobTrackerApi.Models;
+
+public sealed record DiscoveredJob(
+    string Id,
+    string Title,
+    string? Company,
+    string? Location,
+    DateTimeOffset? ModifiedAt,
+    DateTimeOffset? Deadline,
+    string Url,
+    string Source,
+    string SourceName,
+    string AcquisitionType,
+    DateTimeOffset RetrievedAt,
+    string CountryCode);

JobTrackerApi/Program.cs

@@ -60,6 +60,8 @@ builder.Services.AddSingleton<IAiOperationHandler, StrategySnapshotOperationHand
 builder.Services.AddSingleton<IAiOperationHandler, CvProcessingOperationHandler>();
 builder.Services.AddSingleton<AiOperationWorker>();
 builder.Services.AddScoped<UserNotificationStore>();
+builder.Services.AddSingleton<IJobDiscoverySearchService, NavJobDiscoverySearchService>();
+builder.Services.AddScoped<SavedJobSearchRunner>();
 builder.Services.AddScoped<IEmailSettingsResolver, EmailSettingsResolver>();
 builder.Services.AddScoped<IAppEmailSender, SmtpEmailSender>();
 builder.Services.AddScoped<ICvProcessingQueue, CvProcessingQueue>();
@@ -174,6 +176,7 @@ builder.Services.AddSingleton<IDatabaseBackupRunner, SqliteDatabaseBackupRunner>
 builder.Services.AddHostedService<DatabaseBackupHostedService>();
 builder.Services.AddHostedService<RulesHostedService>();
 builder.Services.AddHostedService<FollowUpReminderHostedService>();
+builder.Services.AddHostedService<SavedJobSearchAlertHostedService>();
 builder.Services.AddHostedService<DailyExportHostedService>();
 builder.Services.AddHostedService<JobEnrichmentHostedService>();
 builder.Services.AddHostedService<SummarizerProbeHostedService>();

JobTrackerApi/Services/BackgroundTenantRunner.cs

@@ -16,13 +16,28 @@ public sealed class BackgroundTenantRunner(
         string worker,
         Func<IServiceProvider, CancellationToken, Task> work,
         CancellationToken cancellationToken)
+    {
+        return await RunForOwnersAsync(worker, async db => await db.JobApplications.IgnoreQueryFilters().AsNoTracking()
+            .Where(job => job.OwnerUserId != null).Select(job => job.OwnerUserId!).ToListAsync(cancellationToken), work, cancellationToken);
+    }
+
+    public async Task<BackgroundWorkerRunResult> RunForSavedSearchOwnersAsync(
+        string worker,
+        Func<IServiceProvider, CancellationToken, Task> work,
+        CancellationToken cancellationToken)
+    {
+        return await RunForOwnersAsync(worker, async db => await db.SavedJobSearches.IgnoreQueryFilters().AsNoTracking()
+            .Where(search => search.IsActive).Select(search => search.OwnerUserId).ToListAsync(cancellationToken), work, cancellationToken);
+    }
+
+    private async Task<BackgroundWorkerRunResult> RunForOwnersAsync(
+        string worker,
+        Func<JobTrackerContext, Task<List<string>>> findOwners,
+        Func<IServiceProvider, CancellationToken, Task> work,
+        CancellationToken cancellationToken)
     {
         await using var enumerationScope = scopes.CreateAsyncScope();
-        var ownerIds = await enumerationScope.ServiceProvider.GetRequiredService<JobTrackerContext>()
-            .JobApplications.IgnoreQueryFilters().AsNoTracking()
-            .Where(job => job.OwnerUserId != null)
-            .Select(job => job.OwnerUserId!)
-            .ToListAsync(cancellationToken);
+        var ownerIds = await findOwners(enumerationScope.ServiceProvider.GetRequiredService<JobTrackerContext>());
         var owners = ownerIds.Where(owner => !string.IsNullOrWhiteSpace(owner))
             .Distinct(StringComparer.Ordinal)
             .Order(StringComparer.Ordinal)

JobTrackerApi/Services/JobDiscoverySearchService.cs

@@ -0,0 +1,80 @@
+using System.Net.Http.Headers;
+using System.Text.Json;
+using JobTrackerApi.Models;
+using Microsoft.Extensions.Caching.Memory;
+
+namespace JobTrackerApi.Services;
+
+public interface IJobDiscoverySearchService
+{
+    Task<IReadOnlyList<DiscoveredJob>> SearchAsync(string? query, string? location, CancellationToken cancellationToken);
+}
+
+public sealed class NavJobDiscoverySearchService(
+    IHttpClientFactory clients,
+    IConfiguration configuration,
+    IMemoryCache cache,
+    TimeProvider timeProvider) : IJobDiscoverySearchService
+{
+    private const string BaseUrl = "https://pam-stilling-feed.nav.no";
+
+    public async Task<IReadOnlyList<DiscoveredJob>> SearchAsync(string? query, string? location, CancellationToken cancellationToken)
+    {
+        var retrievedAt = timeProvider.GetUtcNow();
+        var token = await GetTokenAsync(cancellationToken);
+        var client = clients.CreateClient();
+        var entries = new Dictionary<string, DiscoveredJob>(StringComparer.OrdinalIgnoreCase);
+        var next = "/api/v1/feed";
+        for (var page = 0; page < 20 && !string.IsNullOrWhiteSpace(next); page++)
+        {
+            using var request = new HttpRequestMessage(HttpMethod.Get, BaseUrl + next);
+            request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
+            request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
+            if (page == 0) request.Headers.IfModifiedSince = timeProvider.GetUtcNow().AddDays(-14);
+            using var response = await client.SendAsync(request, cancellationToken);
+            response.EnsureSuccessStatusCode();
+            using var json = JsonDocument.Parse(await response.Content.ReadAsStreamAsync(cancellationToken));
+            next = json.RootElement.TryGetProperty("next_url", out var nextElement) ? nextElement.GetString() ?? "" : "";
+            foreach (var item in json.RootElement.GetProperty("items").EnumerateArray())
+            {
+                var feed = item.GetProperty("_feed_entry");
+                var jobId = feed.GetProperty("uuid").GetString();
+                if (string.IsNullOrWhiteSpace(jobId)) continue;
+                var status = feed.TryGetProperty("status", out var statusElement) ? statusElement.GetString() : null;
+                if (!string.Equals(status, "ACTIVE", StringComparison.OrdinalIgnoreCase)) { entries.Remove(jobId); continue; }
+                entries[jobId] = new DiscoveredJob(jobId,
+                    feed.TryGetProperty("title", out var title) ? title.GetString() ?? "" : "",
+                    feed.TryGetProperty("businessName", out var company) ? company.GetString() : null,
+                    feed.TryGetProperty("municipal", out var municipal) ? municipal.GetString() : null,
+                    item.TryGetProperty("date_modified", out var modified) && modified.TryGetDateTimeOffset(out var date) ? date : null,
+                    feed.TryGetProperty("applicationDue", out var due) && due.TryGetDateTimeOffset(out var deadline) ? deadline : null,
+                    $"https://arbeidsplassen.nav.no/stillinger/stilling/{jobId}", "nav", "NAV Arbeidsplassen", "searched", retrievedAt, "NO");
+            }
+        }
+
+        var term = (query ?? "").Trim();
+        var place = (location ?? "").Trim();
+        return entries.Values.Where(job => Contains(job.Title, term) || Contains(job.Company, term))
+            .Where(job => Contains(job.Location, place)).OrderByDescending(job => job.ModifiedAt).Take(100).ToList();
+    }
+
+    private async Task<string> GetTokenAsync(CancellationToken cancellationToken)
+    {
+        var configured = configuration["NavJobs:Token"]?.Trim();
+        if (!string.IsNullOrWhiteSpace(configured)) return configured;
+
+        return await cache.GetOrCreateAsync("nav-jobs-public-token", async entry =>
+        {
+            entry.AbsoluteExpirationRelativeToNow = TimeSpan.FromMinutes(30);
+            var text = await clients.CreateClient().GetStringAsync(BaseUrl + "/api/publicToken", cancellationToken);
+            var start = text.IndexOf("eyJ", StringComparison.Ordinal);
+            if (start < 0) throw new InvalidOperationException("NAV public token was not returned.");
+            var token = text[start..].Trim();
+            var end = token.IndexOfAny(['\r', '\n', ' ', '\t']);
+            return end < 0 ? token : token[..end];
+        }) ?? throw new InvalidOperationException("NAV public token was not returned.");
+    }
+
+    private static bool Contains(string? value, string filter) =>
+        filter.Length == 0 || (value?.Contains(filter, StringComparison.OrdinalIgnoreCase) ?? false);
+}

JobTrackerApi/Services/SavedJobSearchAlertHostedService.cs

@@ -0,0 +1,86 @@
+using JobTrackerApi.Data;
+using JobTrackerApi.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace JobTrackerApi.Services;
+
+public sealed class SavedJobSearchAlertHostedService(
+    BackgroundTenantRunner tenants,
+    IConfiguration configuration,
+    ILogger<SavedJobSearchAlertHostedService> logger,
+    IStartupReadiness startupReadiness,
+    TimeProvider timeProvider) : BackgroundService
+{
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        await startupReadiness.WaitUntilReadyAsync(stoppingToken);
+        if (!IsEnabled())
+        {
+            logger.LogInformation("Saved job search alert worker disabled.");
+            return;
+        }
+
+        await Task.Delay(TimeSpan.FromSeconds(30), timeProvider, stoppingToken);
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            await RunOnceAsync(stoppingToken);
+            await Task.Delay(GetInterval(), timeProvider, stoppingToken);
+        }
+    }
+
+    public Task<BackgroundWorkerRunResult> RunOnceAsync(CancellationToken cancellationToken) =>
+        IsEnabled()
+            ? tenants.RunForSavedSearchOwnersAsync("saved-job-search-alerts", ProcessOwnerAsync, cancellationToken)
+            : Task.FromResult(BackgroundWorkerRunResult.Disabled);
+
+    private bool IsEnabled() => configuration.GetValue("Workers:SavedJobSearchAlertsEnabled", true);
+
+    private TimeSpan GetInterval() => TimeSpan.FromHours(Math.Clamp(
+        configuration.GetValue("JobDiscovery:SavedSearchIntervalHours", 6), 1, 24));
+
+    private async Task ProcessOwnerAsync(IServiceProvider services, CancellationToken cancellationToken)
+    {
+        var db = services.GetRequiredService<JobTrackerContext>();
+        var runner = services.GetRequiredService<SavedJobSearchRunner>();
+        var now = timeProvider.GetUtcNow();
+        var dueBefore = now - GetInterval();
+        var useNorwegian = string.Equals(
+            await db.Users.AsNoTracking().Where(user => user.Id == db.CurrentUserId).Select(user => user.UiLanguage).FirstOrDefaultAsync(cancellationToken),
+            "nb",
+            StringComparison.OrdinalIgnoreCase);
+        var searches = await db.SavedJobSearches.Include(search => search.Results)
+            .Where(search => search.IsActive)
+            .OrderBy(search => search.Id)
+            .ToListAsync(cancellationToken);
+
+        foreach (var search in searches.Where(search => search.LastRunAtUtc is null || search.LastRunAtUtc <= dueBefore))
+        {
+            var result = await runner.RunAsync(search, cancellationToken);
+            // The first automatic run establishes a baseline. Alert only for vacancies
+            // that appear after that baseline so existing results never look "new".
+            if (!result.WasInitialRun && result.NewCount > 0)
+            {
+                db.UserNotifications.Add(new UserNotification
+                {
+                    Id = Guid.NewGuid(),
+                    OwnerUserId = search.OwnerUserId,
+                    Kind = "saved_search_results",
+                    Title = useNorwegian
+                        ? result.NewCount == 1 ? "Ny stilling funnet" : $"{result.NewCount} nye stillinger funnet"
+                        : result.NewCount == 1 ? "New vacancy found" : $"{result.NewCount} new vacancies found",
+                    Message = useNorwegian
+                        ? result.NewCount == 1
+                            ? $"Det lagrede søket «{search.Name}» fant en ny stilling."
+                            : $"Det lagrede søket «{search.Name}» fant {result.NewCount} nye stillinger."
+                        : result.NewCount == 1
+                            ? $"Your saved search ‘{search.Name}’ found a new vacancy."
+                            : $"Your saved search ‘{search.Name}’ found {result.NewCount} new vacancies.",
+                    LinkPath = "/discover",
+                    CreatedAtUtc = now.UtcDateTime
+                });
+            }
+        }
+
+        await db.SaveChangesAsync(cancellationToken);
+    }
+}

JobTrackerApi/Services/SavedJobSearchRunner.cs

@@ -0,0 +1,44 @@
+using JobTrackerApi.Data;
+using JobTrackerApi.Models;
+
+namespace JobTrackerApi.Services;
+
+public sealed record SavedJobSearchRunResult(
+    IReadOnlyList<SavedJobSearchJobResult> Jobs,
+    int NewCount,
+    bool WasInitialRun);
+
+public sealed record SavedJobSearchJobResult(DiscoveredJob Job, bool IsNew, bool IsDismissed);
+
+public sealed class SavedJobSearchRunner(
+    JobTrackerContext db,
+    IJobDiscoverySearchService discovery,
+    TimeProvider timeProvider)
+{
+    public async Task<SavedJobSearchRunResult> RunAsync(SavedJobSearch search, CancellationToken cancellationToken)
+    {
+        var jobs = await discovery.SearchAsync(search.Query, search.Location, cancellationToken);
+        var now = timeProvider.GetUtcNow();
+        var wasInitialRun = search.LastRunAtUtc is null;
+        var existing = search.Results.ToDictionary(item => item.ExternalJobId, StringComparer.OrdinalIgnoreCase);
+        var results = new List<SavedJobSearchJobResult>(jobs.Count);
+        var newCount = 0;
+        foreach (var job in jobs)
+        {
+            var isNew = !existing.TryGetValue(job.Id, out var state);
+            if (state is null)
+            {
+                state = new SavedJobSearchResult { ExternalJobId = job.Id, FirstSeenAtUtc = now, LastSeenAtUtc = now };
+                search.Results.Add(state);
+                db.SavedJobSearchResults.Add(state);
+                newCount++;
+            }
+            else state.LastSeenAtUtc = now;
+            results.Add(new SavedJobSearchJobResult(job, isNew, state.IsDismissed));
+        }
+
+        search.LastRunAtUtc = now;
+        search.UpdatedAtUtc = now;
+        return new SavedJobSearchRunResult(results, newCount, wasInitialRun);
+    }
+}

JobTrackerApi/appsettings.json

@@ -13,10 +13,14 @@
   "Workers": {
     "RulesEnabled": false,
     "FollowUpRemindersEnabled": false,
+    "SavedJobSearchAlertsEnabled": true,
     "DailyExportEnabled": false,
     "JobEnrichmentEnabled": false,
     "AiOperationsEnabled": false
   },
+  "JobDiscovery": {
+    "SavedSearchIntervalHours": 6
+  },
   "Ai": {
     "ExternalProcessingEnabled": false,
     "ExternalProvider": "ollama",

docker-compose.yml

@@ -78,6 +78,8 @@ services:
       # notification/privacy/entitlement prerequisites have been explicitly rolled out.
       - Workers__RulesEnabled=${WORKER_RULES_ENABLED:-false}
       - Workers__FollowUpRemindersEnabled=${WORKER_FOLLOWUP_REMINDERS_ENABLED:-false}
+      - Workers__SavedJobSearchAlertsEnabled=${WORKER_SAVED_SEARCH_ALERTS_ENABLED:-true}
+      - JobDiscovery__SavedSearchIntervalHours=${SAVED_SEARCH_INTERVAL_HOURS:-6}
       - Workers__DailyExportEnabled=${WORKER_DAILY_EXPORT_ENABLED:-false}
       - Workers__JobEnrichmentEnabled=${WORKER_JOB_ENRICHMENT_ENABLED:-false}
       - Workers__AiOperationsEnabled=${WORKER_AI_OPERATIONS_ENABLED:-false}

docs/architecture/background-workers.md

@@ -6,7 +6,7 @@ Updated: 2026-08-02
 
 HTTP requests derive `JobTrackerContext.CurrentUserId` from the authenticated request. Hosted services have no HTTP context, so deny-on-null query filters intentionally return no tenant rows.
 
-`BackgroundTenantRunner` is the only worker bypass for the four job-owner schedulers. It uses `IgnoreQueryFilters` only to enumerate distinct non-empty job owners, then creates a fresh scope per owner and sets `CurrentUserService` before resolving the scoped `JobTrackerContext`. All work queries run through the normal tenant filters. An owner failure is counted and isolated; logs contain worker name, exception type and aggregate counts, not owner IDs or private content. An HTTP context cannot be replaced by a background owner.
+`BackgroundTenantRunner` is the only worker bypass for the tenant schedulers. It uses `IgnoreQueryFilters` only to enumerate distinct non-empty owners from the resource a worker owns, then creates a fresh scope per owner and sets `CurrentUserService` before resolving the scoped `JobTrackerContext`. All work queries run through the normal tenant filters. An owner failure is counted and isolated; logs contain worker name, exception type and aggregate counts, not owner IDs or private content. An HTTP context cannot be replaced by a background owner.
 
 This is a sequential, single-instance foundation. Generic operation leasing now exists in OPS-001A, but notifications, bounded AI handlers and multi-replica scheduling belong to OPS-001B/C and AI-001 and must precede activation that needs them.
 
@@ -16,6 +16,7 @@ This is a sequential, single-instance foundation. Generic operation leasing now
 |---|---|---|---|
 | `RulesHostedService` | owner runner + normal filters/per-user rules | changes job status | `Workers:RulesEnabled=false` by default; keep off until user-visible notification/audit behavior is ready |
 | `FollowUpReminderHostedService` | owner runner + normal filters | sends email, then marks date | both `Workers:FollowUpRemindersEnabled` and `Email:FollowUpReminders:Enabled`; keep off until persistent notification/idempotency work |
+| `SavedJobSearchAlertHostedService` | saved-search owner runner + normal filters | checks active NAV searches and creates in-app notifications | enabled by default; users can pause each search, interval is `JobDiscovery:SavedSearchIntervalHours` (default 6); first run establishes a silent baseline |
 | `DailyExportHostedService` | owner runner + normal filters; one hashed-owner atomic file | writes local JSON | both `Workers:DailyExportEnabled` and `Exports:DailyEnabled`; keep off pending retention/operator rollout |
 | `JobEnrichmentHostedService` | owner runner + normal filters | deterministic tags and AI summary | `Workers:JobEnrichmentEnabled=false`; do not enable before Pro/privacy/provider/queue gates |
 | `CvProcessingHostedService` | existing explicit run owner on every unfiltered query | user-requested CV parsing/AI | unchanged; persistent run rows recover at startup, process-local wake-up remains single-instance |

job-tracker-ui/src/i18n/translations.ts

@@ -275,7 +275,9 @@ export const translations = {
     jobDiscoveryViewListing: "View listing",
     jobDiscoverySaveTracker: "Save to tracker",
     jobDiscoverySavedSearches: "Saved searches",
-    jobDiscoverySavedSearchesHelp: "Run a saved NAV search to see which vacancies are genuinely new since your last check.",
+    jobDiscoverySavedSearchesHelp: "Saved NAV searches are checked automatically. You will be notified when new vacancies appear.",
+    jobDiscoveryAutomaticAlerts: "Automatic alerts",
+    jobDiscoveryUpdateAlertsFailed: "The alert setting could not be updated. Try again.",
     jobDiscoverySavedName: "Search name",
     jobDiscoverySavedDefaultName: "Recent vacancies",
     jobDiscoverySaveSearch: "Save search",
@@ -2675,7 +2677,9 @@ export const translations = {
     jobDiscoveryViewListing: "Vis stilling",
     jobDiscoverySaveTracker: "Lagre i oversikten",
     jobDiscoverySavedSearches: "Lagrede søk",
-    jobDiscoverySavedSearchesHelp: "Kjør et lagret NAV-søk for å se hvilke stillinger som faktisk er nye siden sist.",
+    jobDiscoverySavedSearchesHelp: "Lagrede NAV-søk kontrolleres automatisk. Du får et varsel når nye stillinger dukker opp.",
+    jobDiscoveryAutomaticAlerts: "Automatiske varsler",
+    jobDiscoveryUpdateAlertsFailed: "Varslingsinnstillingen kunne ikke oppdateres. Prøv igjen.",
     jobDiscoverySavedName: "Navn på søket",
     jobDiscoverySavedDefaultName: "Nylige stillinger",
     jobDiscoverySaveSearch: "Lagre søk",

job-tracker-ui/src/job-discovery.test.tsx

@@ -93,3 +93,17 @@ test("runs a saved search, marks unseen vacancies, and dismisses them", async ()
   await waitFor(() => expect(screen.queryByText("Platform Engineer")).not.toBeInTheDocument());
   expect(mockedApi.patch).toHaveBeenCalledWith("/job-discovery/saved-searches/7/results/new-1/dismiss", { isDismissed: true });
 });
+
+test("lets the user pause automatic alerts for a saved search", async () => {
+  const saved = { id: 7, name: "Backend Oslo", query: "backend", location: "Oslo", isActive: true, resultCount: 1, dismissedCount: 0 };
+  mockedApi.get.mockResolvedValue({ data: [saved] } as any);
+  mockedApi.patch.mockResolvedValue({ data: { ...saved, isActive: false } } as any);
+  renderPage();
+
+  const toggle = await screen.findByRole("switch", { name: "Automatic alerts" });
+  expect(toggle).toBeChecked();
+  fireEvent.click(toggle);
+
+  await waitFor(() => expect(mockedApi.patch).toHaveBeenCalledWith("/job-discovery/saved-searches/7", { isActive: false }));
+  await waitFor(() => expect(toggle).not.toBeChecked());
+});

job-tracker-ui/src/views/JobDiscoveryPage.tsx

@@ -1,5 +1,5 @@
 import { FormEvent, useEffect, useMemo, useState } from "react";
-import { Alert, Box, Button, Card, CardActions, CardContent, Chip, CircularProgress, MenuItem, Stack, TextField, Typography } from "@mui/material";
+import { Alert, Box, Button, Card, CardActions, CardContent, Chip, CircularProgress, FormControlLabel, MenuItem, Stack, Switch, TextField, Typography } from "@mui/material";
 import SearchIcon from "@mui/icons-material/Search";
 import AddIcon from "@mui/icons-material/Add";
 import BookmarkAddOutlinedIcon from "@mui/icons-material/BookmarkAddOutlined";
@@ -26,7 +26,7 @@ type DiscoveredJob = {
   isNew?: boolean;
 };
 
-type SavedSearch = { id: number; name: string; query: string; location: string; lastRunAtUtc?: string; resultCount: number; dismissedCount: number };
+type SavedSearch = { id: number; name: string; query: string; location: string; isActive: boolean; lastRunAtUtc?: string; resultCount: number; dismissedCount: number };
 type SavedSearchRun = { search: SavedSearch; jobs: Array<{ job: DiscoveredJob; isNew: boolean; isDismissed: boolean }> };
 
 type SortOrder = "updated" | "deadline" | "title";
@@ -47,6 +47,7 @@ export default function JobDiscoveryPage() {
   const [savedName, setSavedName] = useState("");
   const [savingSearch, setSavingSearch] = useState(false);
   const [activeSavedSearchId, setActiveSavedSearchId] = useState<number | null>(null);
+  const [updatingSavedSearchId, setUpdatingSavedSearchId] = useState<number | null>(null);
 
   useEffect(() => {
     let active = true;
@@ -102,6 +103,15 @@ export default function JobDiscoveryPage() {
     } catch { setError(t("jobDiscoveryDeleteSavedFailed")); }
   };
 
+  const toggleSavedSearchAlerts = async (saved: SavedSearch) => {
+    setUpdatingSavedSearchId(saved.id); setError("");
+    try {
+      const response = await api.patch<SavedSearch>(`/job-discovery/saved-searches/${saved.id}`, { isActive: !saved.isActive });
+      setSavedSearches((current) => current.map((item) => item.id === saved.id ? response.data : item));
+    } catch { setError(t("jobDiscoveryUpdateAlertsFailed")); }
+    finally { setUpdatingSavedSearchId(null); }
+  };
+
   const dismissJob = async (jobId: string) => {
     if (activeSavedSearchId === null) return;
     try {
@@ -148,6 +158,11 @@ export default function JobDiscoveryPage() {
                     <Typography variant="caption" color="text.secondary">{[saved.query, saved.location].filter(Boolean).join(" · ") || t("jobDiscoveryAllRecent")}{saved.lastRunAtUtc ? ` · ${t("jobDiscoveryLastRun", { date: formatDate(saved.lastRunAtUtc) ?? "" })}` : ""}</Typography>
                   </Box>
                   <Chip size="small" label={t("jobDiscoveryTrackedCount", { count: saved.resultCount })} />
+                  <FormControlLabel
+                    sx={{ m: 0 }}
+                    control={<Switch size="small" checked={saved.isActive} disabled={updatingSavedSearchId === saved.id} onChange={() => void toggleSavedSearchAlerts(saved)} />}
+                    label={<Typography variant="body2">{t("jobDiscoveryAutomaticAlerts")}</Typography>}
+                  />
                   <Button size="small" startIcon={<RefreshIcon />} onClick={() => void runSavedSearch(saved)} disabled={loading}>{t("jobDiscoveryRunSaved")}</Button>
                   <Button size="small" color="error" startIcon={<DeleteOutlineIcon />} onClick={() => void deleteSavedSearch(saved)}>{t("adminUsersDelete")}</Button>
                 </Box>