Add billing target project ID to cost query service

Author: tumugin

GCPCostNotifier/AppSetting.cs

@@ -11,4 +11,6 @@ public class AppSetting
     [Required] public required string SlackWebhookUrl { get; init; }
 
     public Character Character { get; init; } = Character.Mayuri;
+
+    public string? BillingTargetProjectId { get; init; }
 }

GCPCostNotifier/Services/CostQueryService.cs

@@ -7,6 +7,7 @@ namespace GCPCostNotifier.Services;
 public class CostQueryService(
     string projectId,
     string targetTableName,
+    string billingTargetProjectId,
     IDateTimeCalculationService dateTimeCalculationService,
     ILogger<CostQueryService> logger
 ) : ICostQueryService
@@ -17,7 +18,8 @@ public async Task<IList<CostSummary>> GetYesterdayCostSummaryAsync(
         CancellationToken cancellationToken
     )
     {
-        var calculatedDateTimes = dateTimeCalculationService.CalculateDateTimeOffsetsForYesterday(targetDateTimeOffset, targetTimeZoneInfo);
+        var calculatedDateTimes =
+            dateTimeCalculationService.CalculateDateTimeOffsetsForYesterday(targetDateTimeOffset, targetTimeZoneInfo);
 
         var query =
             @$"
@@ -28,7 +30,8 @@ CancellationToken cancellationToken
 FROM `{targetTableName}`
 WHERE
     _PARTITIONTIME BETWEEN @partitionStartDateTime AND @partitionEndDateTime AND
-    usage_start_time >= @startDateTime AND usage_end_time <= @endDateTime
+    usage_start_time >= @startDateTime AND usage_end_time <= @endDateTime AND
+    `project`.`id` = @billingTargetProjectId
 GROUP BY service.description, sku.description
 HAVING SummarizedCost > 0
 ORDER BY ServiceName, ServiceDescription";
@@ -64,6 +67,11 @@ HAVING SummarizedCost > 0
                     "endDateTime",
                     BigQueryDbType.Timestamp,
                     calculatedDateTimes.EndOffsetDateTimeOffset
+                ),
+                new BigQueryParameter(
+                    "billingTargetProjectId",
+                    BigQueryDbType.String,
+                    billingTargetProjectId
                 )
             },
             cancellationToken: cancellationToken

GCPCostNotifier/Startup.cs

@@ -23,6 +23,7 @@ public override void ConfigureServices(WebHostBuilderContext context, IServiceCo
                 return new CostQueryService(
                     appSettings.ProjectId,
                     appSettings.TargetTableName,
+                    appSettings.BillingTargetProjectId ?? appSettings.ProjectId,
                     v.GetRequiredService<IDateTimeCalculationService>(),
                     v.GetRequiredService<ILogger<CostQueryService>>()
                 );