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feat(stats): flip home Plays card live (Phase 16.5)

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Add TotalPlays + UniqueListeners to HomeStatsDto, composed at
StatsController from IEventService (no migration). Card reads via
existing persistent-state-bridged round-trip.
This commit is contained in:
daniel-c-harvey
2026-06-19 15:26:07 -04:00
parent cfcc2693f2
commit be1a55fd37
7 changed files with 123 additions and 13 deletions
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DeepDrftAPI/Controllers/StatsController.cs
+30 -7
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@@ -8,29 +8,52 @@ namespace DeepDrftAPI.Controllers;
public class StatsController : ControllerBase
{
private readonly ITrackService _sqlTrackService;
private readonly IEventService _eventService;
private readonly ILogger<StatsController> _logger;
public StatsController(ITrackService sqlTrackService, ILogger<StatsController> logger)
public StatsController(
ITrackService sqlTrackService, IEventService eventService, ILogger<StatsController> logger)
{
_sqlTrackService = sqlTrackService;
_eventService = eventService;
_logger = logger;
}
// GET api/stats/home (unauthenticated)
// Aggregate figures behind the public home hero stat row — one read for all three cards. Same auth
// posture as the other public browse reads (GET api/track/page). The aggregation lives in the SQL
// service/repository; this controller stays a thin HTTP boundary.
// posture as the other public browse reads (GET api/track/page). The figures span two domains:
// the track-domain aggregation (Cuts/Mixes cards) lives in the SQL track service; the play-domain
// figures (Phase 16 Plays card — total plays + unique listeners) live in the event service. This
// controller is the thin composition seam that assembles both into one HomeStatsDto — neither
// domain reaches into the other's tables. Play/listener figures are best-effort: a telemetry read
// failure (or the not-yet-applied migration) leaves them at zero rather than failing the whole card.
[HttpGet("home")]
public async Task<ActionResult> GetHome(CancellationToken ct = default)
{
var result = await _sqlTrackService.GetHomeStats(ct);
if (!result.Success || result.Value is null)
var trackResult = await _sqlTrackService.GetHomeStats(ct);
if (!trackResult.Success || trackResult.Value is null)
{
var error = result.Messages.FirstOrDefault()?.Message ?? "Unknown error";
var error = trackResult.Messages.FirstOrDefault()?.Message ?? "Unknown error";
_logger.LogError("GetHome stats failed: {Error}", error);
return StatusCode(500, "Failed to load stats");
}
return Ok(result.Value);
var stats = trackResult.Value;
var playsResult = await _eventService.GetTotalPlayCount(ct);
if (playsResult is { Success: true })
stats.TotalPlays = playsResult.Value;
else
_logger.LogWarning("GetHome total-plays read failed; Plays card falls back to 0: {Error}",
playsResult.Messages.FirstOrDefault()?.Message);
var listenersResult = await _eventService.GetDistinctListenerCount(ct);
if (listenersResult is { Success: true })
stats.UniqueListeners = listenersResult.Value;
else
_logger.LogWarning("GetHome unique-listeners read failed; secondary line falls back to 0: {Error}",
listenersResult.Messages.FirstOrDefault()?.Message);
return Ok(stats);
}
}