M4: aggregation + tariff-aware cost engine

- ContinuousAggregates migration: consumption_daily/monthly/yearly in Europe/Berlin
  buckets via migrationBuilder.Sql(..., suppressTransaction: true), with refresh policies
  (end_offset >= 1 bucket; current bucket covered by real-time aggregation).
- TariffResolver (Core): time-ranged price resolution, scope precedence meter > type > global.
- CostService: Dapper-aggregated monthly consumption × resolved unit price (+base, -feed-in),
  month-dominant pricing; category rollups over member meters + meterless manual costs.
- Tests: water cost reconciles to the sheet's Kosten column, Wasser category rollup (Dez=70€),
  monthly CAgg refresh matches base, TariffResolver unit tests.

91 tests green (56 Core + 35 integration).

Claude-Session: https://claude.ai/code/session_01WujdMtMJPbxDpDnMeK22rr
This commit is contained in:
2026-07-13 11:52:53 +02:00
parent 4b0cad67df
commit 6fc710d55a
8 changed files with 1363 additions and 0 deletions
+15
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@@ -0,0 +1,15 @@
namespace MeterVault.Infrastructure.Costing;
/// <summary>Cost and consumption/generation for one meter in one time bucket.</summary>
public sealed record MeterCostBucket(DateOnly Period, double Consumption, double Generation, double Cost);
/// <summary>Rolled-up cost for a category in one time bucket (meters + manual costs).</summary>
public sealed record CategoryCostBucket(DateOnly Period, double Cost);
/// <summary>Bucket granularity for cost/consumption queries.</summary>
public enum CostBucket
{
Day,
Month,
Year,
}
+134
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@@ -0,0 +1,134 @@
using Dapper;
using MeterVault.Core.Costing;
using MeterVault.Core.Domain;
using MeterVault.Infrastructure.Persistence;
using Microsoft.EntityFrameworkCore;
namespace MeterVault.Infrastructure.Costing;
/// <summary>
/// Computes cost by joining bucketed consumption with time-ranged tariffs (SDD §7.5). Consumption
/// is aggregated in SQL (Dapper, local-timezone buckets); the active price for each bucket is
/// resolved in C# via <see cref="TariffResolver"/> using the month's dominant price (SDD §14.3).
/// Categories roll up their member meters' costs plus meterless manual costs.
/// </summary>
public sealed class CostService(MeterVaultDbContext db)
{
private readonly MeterVaultDbContext _db = db;
public async Task<IReadOnlyList<MeterCostBucket>> GetMeterCostsAsync(
int meterId, DateTimeOffset from, DateTimeOffset to, CostBucket bucket = CostBucket.Month,
CancellationToken cancellationToken = default)
{
var meter = await _db.Meters.FirstOrDefaultAsync(m => m.Id == meterId, cancellationToken).ConfigureAwait(false);
if (meter is null)
{
return [];
}
var tariffs = await _db.Tariffs.AsNoTracking().ToListAsync(cancellationToken).ConfigureAwait(false);
var series = await QueryConsumptionAsync(meterId, from, to, bucket, cancellationToken).ConfigureAwait(false);
var results = new List<MeterCostBucket>();
foreach (var period in series.Keys.OrderBy(k => k))
{
var (consumption, generation) = series[period];
var mid = RepresentativeDate(period, bucket);
var unitPrice = TariffResolver.ResolveValue(tariffs, TariffComponent.UnitPrice, meterId, meter.EnergyTypeId, mid);
var basePrice = TariffResolver.ResolveValue(tariffs, TariffComponent.BasePrice, meterId, meter.EnergyTypeId, mid);
var feedIn = TariffResolver.ResolveValue(tariffs, TariffComponent.FeedIn, meterId, meter.EnergyTypeId, mid);
var cost = (consumption * unitPrice) + basePrice - (generation * feedIn);
results.Add(new MeterCostBucket(period, consumption, generation, cost));
}
return results;
}
public async Task<IReadOnlyList<CategoryCostBucket>> GetCategoryCostsAsync(
int categoryId, DateTimeOffset from, DateTimeOffset to, CancellationToken cancellationToken = default)
{
var members = await _db.CostCategoryMembers
.Where(m => m.CategoryId == categoryId)
.ToListAsync(cancellationToken).ConfigureAwait(false);
var meterIds = new HashSet<int>();
foreach (var member in members)
{
if (member.MeterId is { } meterId)
{
meterIds.Add(meterId);
}
if (member.EnergyTypeId is { } energyTypeId)
{
var byType = await _db.Meters.Where(m => m.EnergyTypeId == energyTypeId).Select(m => m.Id)
.ToListAsync(cancellationToken).ConfigureAwait(false);
meterIds.UnionWith(byType);
}
}
var totals = new Dictionary<DateOnly, double>();
foreach (var meterId in meterIds)
{
foreach (var mc in await GetMeterCostsAsync(meterId, from, to, CostBucket.Month, cancellationToken).ConfigureAwait(false))
{
totals[mc.Period] = totals.GetValueOrDefault(mc.Period) + mc.Cost;
}
}
var manualCosts = await _db.ManualCosts
.Where(c => c.CategoryId == categoryId && c.PeriodStart >= DateOnly.FromDateTime(from.UtcDateTime)
&& c.PeriodStart < DateOnly.FromDateTime(to.UtcDateTime))
.ToListAsync(cancellationToken).ConfigureAwait(false);
foreach (var cost in manualCosts)
{
var period = new DateOnly(cost.PeriodStart.Year, cost.PeriodStart.Month, 1);
totals[period] = totals.GetValueOrDefault(period) + cost.Amount;
}
return [.. totals.OrderBy(kv => kv.Key).Select(kv => new CategoryCostBucket(kv.Key, kv.Value))];
}
private async Task<Dictionary<DateOnly, (double Consumption, double Generation)>> QueryConsumptionAsync(
int meterId, DateTimeOffset from, DateTimeOffset to, CostBucket bucket, CancellationToken cancellationToken)
{
var interval = bucket switch
{
CostBucket.Day => "1 day",
CostBucket.Year => "1 year",
_ => "1 month",
};
var sql =
$"SELECT (time_bucket(INTERVAL '{interval}', \"time\", 'Europe/Berlin') AT TIME ZONE 'Europe/Berlin')::date AS period, " +
"kind, sum(amount) AS amount " +
"FROM consumption WHERE meter_id = @meterId AND \"time\" >= @from AND \"time\" < @to " +
"GROUP BY period, kind";
var connection = _db.Database.GetDbConnection();
var command = new CommandDefinition(sql, new { meterId, from, to }, cancellationToken: cancellationToken);
var rows = await connection.QueryAsync<ConsumptionRow>(command).ConfigureAwait(false);
var result = new Dictionary<DateOnly, (double, double)>();
foreach (var row in rows)
{
var current = result.GetValueOrDefault(row.Period);
result[row.Period] = row.Kind == (short)ConsumptionKind.Generation
? (current.Item1, current.Item2 + row.Amount)
: (current.Item1 + row.Amount, current.Item2);
}
return result;
}
private static DateOnly RepresentativeDate(DateOnly period, CostBucket bucket) => bucket switch
{
CostBucket.Day => period,
CostBucket.Year => new DateOnly(period.Year, 7, 1),
_ => new DateOnly(period.Year, period.Month, 15),
};
private sealed record ConsumptionRow(DateOnly Period, short Kind, double Amount);
}
@@ -27,6 +27,7 @@ public static class DependencyInjection
services.AddScoped<ImportService>();
services.AddScoped<IngestionService>();
services.AddScoped<MqttMessageRouter>();
services.AddScoped<Costing.CostService>();
return services;
}
@@ -0,0 +1,877 @@
// <auto-generated />
using System;
using MeterVault.Infrastructure.Persistence;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
#nullable disable
namespace MeterVault.Infrastructure.Persistence.Migrations
{
[DbContext(typeof(MeterVaultDbContext))]
[Migration("20260713094634_ContinuousAggregates")]
partial class ContinuousAggregates
{
/// <inheritdoc />
protected override void BuildTargetModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "10.0.9")
.HasAnnotation("Relational:MaxIdentifierLength", 63);
NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, "timescaledb");
NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
modelBuilder.Entity("MeterVault.Core.Domain.AppSetting", b =>
{
b.Property<string>("Key")
.HasMaxLength(128)
.HasColumnType("character varying(128)")
.HasColumnName("key");
b.Property<string>("Value")
.IsRequired()
.HasColumnType("jsonb")
.HasColumnName("value");
b.HasKey("Key")
.HasName("pk_app_setting");
b.ToTable("app_setting", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.Consumption", b =>
{
b.Property<int>("MeterId")
.HasColumnType("integer")
.HasColumnName("meter_id");
b.Property<DateTimeOffset>("Time")
.HasColumnType("timestamp with time zone")
.HasColumnName("time");
b.Property<short>("Kind")
.HasColumnType("smallint")
.HasColumnName("kind");
b.Property<double>("Amount")
.HasColumnType("double precision")
.HasColumnName("amount");
b.Property<int?>("ImportBatchId")
.HasColumnType("integer")
.HasColumnName("import_batch_id");
b.Property<short>("Quality")
.HasColumnType("smallint")
.HasColumnName("quality");
b.HasKey("MeterId", "Time", "Kind")
.HasName("pk_consumption");
b.HasIndex("ImportBatchId")
.HasDatabaseName("ix_consumption_import_batch_id");
b.ToTable("consumption", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.CostCategory", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("ColorHex")
.HasColumnType("text")
.HasColumnName("color_hex");
b.Property<string>("Name")
.IsRequired()
.HasMaxLength(128)
.HasColumnType("character varying(128)")
.HasColumnName("name");
b.Property<int>("Sort")
.HasColumnType("integer")
.HasColumnName("sort");
b.HasKey("Id")
.HasName("pk_cost_category");
b.ToTable("cost_category", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.CostCategoryMember", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<int>("CategoryId")
.HasColumnType("integer")
.HasColumnName("category_id");
b.Property<short?>("EnergyTypeId")
.HasColumnType("smallint")
.HasColumnName("energy_type_id");
b.Property<int?>("MeterId")
.HasColumnType("integer")
.HasColumnName("meter_id");
b.HasKey("Id")
.HasName("pk_cost_category_member");
b.HasIndex("CategoryId")
.HasDatabaseName("ix_cost_category_member_category_id");
b.HasIndex("EnergyTypeId")
.HasDatabaseName("ix_cost_category_member_energy_type_id");
b.HasIndex("MeterId")
.HasDatabaseName("ix_cost_category_member_meter_id");
b.ToTable("cost_category_member", null, t =>
{
t.HasCheckConstraint("ck_cost_category_member_target", "meter_id IS NOT NULL OR energy_type_id IS NOT NULL");
});
});
modelBuilder.Entity("MeterVault.Core.Domain.EnergyType", b =>
{
b.Property<short>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("smallint")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<short>("Id"));
b.Property<string>("BaseUnit")
.IsRequired()
.HasMaxLength(16)
.HasColumnType("character varying(16)")
.HasColumnName("base_unit");
b.Property<string>("ColorHex")
.HasColumnType("text")
.HasColumnName("color_hex");
b.Property<DateTimeOffset>("CreatedAt")
.ValueGeneratedOnAdd()
.HasColumnType("timestamp with time zone")
.HasColumnName("created_at")
.HasDefaultValueSql("now()");
b.Property<string>("DefaultMode")
.IsRequired()
.HasMaxLength(32)
.HasColumnType("character varying(32)")
.HasColumnName("default_mode");
b.Property<string>("DisplayName")
.IsRequired()
.HasMaxLength(128)
.HasColumnType("character varying(128)")
.HasColumnName("display_name");
b.Property<string>("Icon")
.HasColumnType("text")
.HasColumnName("icon");
b.Property<string>("Key")
.IsRequired()
.HasMaxLength(64)
.HasColumnType("character varying(64)")
.HasColumnName("key");
b.HasKey("Id")
.HasName("pk_energy_type");
b.HasIndex("Key")
.IsUnique()
.HasDatabaseName("ix_energy_type_key");
b.ToTable("energy_type", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.ImportBatch", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<DateTimeOffset>("CreatedAt")
.ValueGeneratedOnAdd()
.HasColumnType("timestamp with time zone")
.HasColumnName("created_at")
.HasDefaultValueSql("now()");
b.Property<string>("Mapping")
.HasColumnType("jsonb")
.HasColumnName("mapping");
b.Property<DateTimeOffset?>("RevertedAt")
.HasColumnType("timestamp with time zone")
.HasColumnName("reverted_at");
b.Property<int>("RowCount")
.HasColumnType("integer")
.HasColumnName("row_count");
b.Property<string>("SourceName")
.HasColumnType("text")
.HasColumnName("source_name");
b.HasKey("Id")
.HasName("pk_import_batch");
b.ToTable("import_batch", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.IngestionEndpoint", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("Config")
.IsRequired()
.ValueGeneratedOnAdd()
.HasColumnType("jsonb")
.HasColumnName("config")
.HasDefaultValueSql("'{}'::jsonb");
b.Property<bool>("IsEnabled")
.HasColumnType("boolean")
.HasColumnName("is_enabled");
b.Property<DateTimeOffset?>("LastSeenAt")
.HasColumnType("timestamp with time zone")
.HasColumnName("last_seen_at");
b.Property<string>("LastStatus")
.HasColumnType("text")
.HasColumnName("last_status");
b.Property<string>("Name")
.IsRequired()
.HasMaxLength(128)
.HasColumnType("character varying(128)")
.HasColumnName("name");
b.Property<string>("Type")
.IsRequired()
.HasMaxLength(32)
.HasColumnType("character varying(32)")
.HasColumnName("type");
b.HasKey("Id")
.HasName("pk_ingestion_endpoint");
b.ToTable("ingestion_endpoint", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.ManualCost", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<double>("Amount")
.HasColumnType("double precision")
.HasColumnName("amount");
b.Property<int?>("CategoryId")
.HasColumnType("integer")
.HasColumnName("category_id");
b.Property<string>("Currency")
.IsRequired()
.HasMaxLength(8)
.HasColumnType("character varying(8)")
.HasColumnName("currency");
b.Property<int?>("ImportBatchId")
.HasColumnType("integer")
.HasColumnName("import_batch_id");
b.Property<int?>("MeterId")
.HasColumnType("integer")
.HasColumnName("meter_id");
b.Property<string>("Notes")
.HasColumnType("text")
.HasColumnName("notes");
b.Property<DateOnly>("PeriodEnd")
.HasColumnType("date")
.HasColumnName("period_end");
b.Property<DateOnly>("PeriodStart")
.HasColumnType("date")
.HasColumnName("period_start");
b.HasKey("Id")
.HasName("pk_manual_cost");
b.HasIndex("CategoryId")
.HasDatabaseName("ix_manual_cost_category_id");
b.HasIndex("ImportBatchId")
.HasDatabaseName("ix_manual_cost_import_batch_id");
b.HasIndex("MeterId")
.HasDatabaseName("ix_manual_cost_meter_id");
b.ToTable("manual_cost", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.Meter", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<DateTimeOffset>("CreatedAt")
.ValueGeneratedOnAdd()
.HasColumnType("timestamp with time zone")
.HasColumnName("created_at")
.HasDefaultValueSql("now()");
b.Property<short>("EnergyTypeId")
.HasColumnType("smallint")
.HasColumnName("energy_type_id");
b.Property<double>("InitialBaseline")
.HasColumnType("double precision")
.HasColumnName("initial_baseline");
b.Property<DateOnly?>("InstalledAt")
.HasColumnType("date")
.HasColumnName("installed_at");
b.Property<bool>("IsActive")
.ValueGeneratedOnAdd()
.HasColumnType("boolean")
.HasDefaultValue(true)
.HasColumnName("is_active");
b.Property<string>("Location")
.HasColumnType("text")
.HasColumnName("location");
b.Property<string>("Manufacturer")
.HasColumnType("text")
.HasColumnName("manufacturer");
b.Property<string>("Meta")
.IsRequired()
.ValueGeneratedOnAdd()
.HasColumnType("jsonb")
.HasColumnName("meta")
.HasDefaultValueSql("'{}'::jsonb");
b.Property<string>("Mode")
.IsRequired()
.HasMaxLength(32)
.HasColumnType("character varying(32)")
.HasColumnName("mode");
b.Property<string>("Model")
.HasColumnType("text")
.HasColumnName("model");
b.Property<string>("Name")
.IsRequired()
.HasColumnType("text")
.HasColumnName("name");
b.Property<DateOnly?>("RetiredAt")
.HasColumnType("date")
.HasColumnName("retired_at");
b.Property<string>("SerialNumber")
.HasColumnType("text")
.HasColumnName("serial_number");
b.Property<string>("Unit")
.IsRequired()
.HasColumnType("text")
.HasColumnName("unit");
b.Property<DateTimeOffset>("UpdatedAt")
.ValueGeneratedOnAdd()
.HasColumnType("timestamp with time zone")
.HasColumnName("updated_at")
.HasDefaultValueSql("now()");
b.HasKey("Id")
.HasName("pk_meter");
b.HasIndex("EnergyTypeId", "IsActive")
.HasDatabaseName("ix_meter_energy_type_id_is_active");
b.ToTable("meter", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.MeterEvent", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<double?>("Amount")
.HasColumnType("double precision")
.HasColumnName("amount");
b.Property<string>("EventType")
.IsRequired()
.HasMaxLength(32)
.HasColumnType("character varying(32)")
.HasColumnName("event_type");
b.Property<int?>("ImportBatchId")
.HasColumnType("integer")
.HasColumnName("import_batch_id");
b.Property<string>("Meta")
.IsRequired()
.ValueGeneratedOnAdd()
.HasColumnType("jsonb")
.HasColumnName("meta")
.HasDefaultValueSql("'{}'::jsonb");
b.Property<int>("MeterId")
.HasColumnType("integer")
.HasColumnName("meter_id");
b.Property<double?>("NewValue")
.HasColumnType("double precision")
.HasColumnName("new_value");
b.Property<string>("Notes")
.HasColumnType("text")
.HasColumnName("notes");
b.Property<double?>("PrevValue")
.HasColumnType("double precision")
.HasColumnName("prev_value");
b.Property<DateTimeOffset>("Time")
.HasColumnType("timestamp with time zone")
.HasColumnName("time");
b.Property<string>("Unit")
.HasColumnType("text")
.HasColumnName("unit");
b.HasKey("Id")
.HasName("pk_meter_event");
b.HasIndex("ImportBatchId")
.HasDatabaseName("ix_meter_event_import_batch_id");
b.HasIndex("MeterId", "Time")
.HasDatabaseName("ix_meter_event_meter_id_time");
b.ToTable("meter_event", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.MeterSource", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("Config")
.IsRequired()
.ValueGeneratedOnAdd()
.HasColumnType("jsonb")
.HasColumnName("config")
.HasDefaultValueSql("'{}'::jsonb");
b.Property<int?>("EndpointId")
.HasColumnType("integer")
.HasColumnName("endpoint_id");
b.Property<bool>("IsEnabled")
.HasColumnType("boolean")
.HasColumnName("is_enabled");
b.Property<DateTimeOffset?>("LastSeenAt")
.HasColumnType("timestamp with time zone")
.HasColumnName("last_seen_at");
b.Property<string>("LastStatus")
.HasColumnType("text")
.HasColumnName("last_status");
b.Property<double?>("LastValue")
.HasColumnType("double precision")
.HasColumnName("last_value");
b.Property<int>("MeterId")
.HasColumnType("integer")
.HasColumnName("meter_id");
b.Property<double>("Offset")
.HasColumnType("double precision")
.HasColumnName("offset");
b.Property<int>("Priority")
.HasColumnType("integer")
.HasColumnName("priority");
b.Property<double>("Scale")
.ValueGeneratedOnAdd()
.HasColumnType("double precision")
.HasDefaultValue(1.0)
.HasColumnName("scale");
b.Property<string>("SourceType")
.IsRequired()
.HasMaxLength(32)
.HasColumnType("character varying(32)")
.HasColumnName("source_type");
b.Property<string>("ValueKind")
.IsRequired()
.HasMaxLength(16)
.HasColumnType("character varying(16)")
.HasColumnName("value_kind");
b.HasKey("Id")
.HasName("pk_meter_source");
b.HasIndex("EndpointId")
.HasDatabaseName("ix_meter_source_endpoint_id");
b.HasIndex("MeterId")
.HasDatabaseName("ix_meter_source_meter_id");
b.ToTable("meter_source", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.Reading", b =>
{
b.Property<int>("MeterId")
.HasColumnType("integer")
.HasColumnName("meter_id");
b.Property<DateTimeOffset>("Time")
.HasColumnType("timestamp with time zone")
.HasColumnName("time");
b.Property<int>("Flags")
.HasColumnType("integer")
.HasColumnName("flags");
b.Property<int?>("ImportBatchId")
.HasColumnType("integer")
.HasColumnName("import_batch_id");
b.Property<short>("Quality")
.HasColumnType("smallint")
.HasColumnName("quality");
b.Property<int?>("SourceId")
.HasColumnType("integer")
.HasColumnName("source_id");
b.Property<double>("Value")
.HasColumnType("double precision")
.HasColumnName("value");
b.HasKey("MeterId", "Time")
.HasName("pk_reading");
b.HasIndex("ImportBatchId")
.HasDatabaseName("ix_reading_import_batch_id");
b.ToTable("reading", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.Tank", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<DateTimeOffset?>("CachedAt")
.HasColumnType("timestamp with time zone")
.HasColumnName("cached_at");
b.Property<double?>("CachedBalance")
.HasColumnType("double precision")
.HasColumnName("cached_balance");
b.Property<string>("Calibration")
.HasColumnType("jsonb")
.HasColumnName("calibration");
b.Property<double>("Capacity")
.HasColumnType("double precision")
.HasColumnName("capacity");
b.Property<double?>("FixedRate")
.HasColumnType("double precision")
.HasColumnName("fixed_rate");
b.Property<double?>("LowThreshold")
.HasColumnType("double precision")
.HasColumnName("low_threshold");
b.Property<int>("MeterId")
.HasColumnType("integer")
.HasColumnName("meter_id");
b.Property<string>("RateMode")
.IsRequired()
.HasMaxLength(16)
.HasColumnType("character varying(16)")
.HasColumnName("rate_mode");
b.Property<double?>("ReorderThreshold")
.HasColumnType("double precision")
.HasColumnName("reorder_threshold");
b.Property<string>("Unit")
.IsRequired()
.HasMaxLength(16)
.HasColumnType("character varying(16)")
.HasColumnName("unit");
b.HasKey("Id")
.HasName("pk_tank");
b.HasIndex("MeterId")
.IsUnique()
.HasDatabaseName("ix_tank_meter_id");
b.ToTable("tank", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.Tariff", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("integer")
.HasColumnName("id");
NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
b.Property<string>("Component")
.IsRequired()
.HasMaxLength(16)
.HasColumnType("character varying(16)")
.HasColumnName("component");
b.Property<string>("Currency")
.IsRequired()
.HasMaxLength(8)
.HasColumnType("character varying(8)")
.HasColumnName("currency");
b.Property<string>("Notes")
.HasColumnType("text")
.HasColumnName("notes");
b.Property<int?>("ScopeId")
.HasColumnType("integer")
.HasColumnName("scope_id");
b.Property<string>("ScopeType")
.IsRequired()
.HasMaxLength(16)
.HasColumnType("character varying(16)")
.HasColumnName("scope_type");
b.Property<string>("Unit")
.IsRequired()
.HasMaxLength(16)
.HasColumnType("character varying(16)")
.HasColumnName("unit");
b.Property<DateOnly>("ValidFrom")
.HasColumnType("date")
.HasColumnName("valid_from");
b.Property<DateOnly?>("ValidTo")
.HasColumnType("date")
.HasColumnName("valid_to");
b.Property<double>("Value")
.HasColumnType("double precision")
.HasColumnName("value");
b.HasKey("Id")
.HasName("pk_tariff");
b.HasIndex("ScopeType", "ScopeId", "Component", "ValidFrom")
.HasDatabaseName("ix_tariff_scope_type_scope_id_component_valid_from");
b.ToTable("tariff", (string)null);
});
modelBuilder.Entity("MeterVault.Core.Domain.Consumption", b =>
{
b.HasOne("MeterVault.Core.Domain.Meter", null)
.WithMany()
.HasForeignKey("MeterId")
.OnDelete(DeleteBehavior.Restrict)
.IsRequired()
.HasConstraintName("fk_consumption_meter_meter_id");
});
modelBuilder.Entity("MeterVault.Core.Domain.CostCategoryMember", b =>
{
b.HasOne("MeterVault.Core.Domain.CostCategory", "Category")
.WithMany("Members")
.HasForeignKey("CategoryId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired()
.HasConstraintName("fk_cost_category_member_cost_category_category_id");
b.HasOne("MeterVault.Core.Domain.EnergyType", null)
.WithMany()
.HasForeignKey("EnergyTypeId")
.OnDelete(DeleteBehavior.Cascade)
.HasConstraintName("fk_cost_category_member_energy_type_energy_type_id");
b.HasOne("MeterVault.Core.Domain.Meter", null)
.WithMany()
.HasForeignKey("MeterId")
.OnDelete(DeleteBehavior.Cascade)
.HasConstraintName("fk_cost_category_member_meter_meter_id");
b.Navigation("Category");
});
modelBuilder.Entity("MeterVault.Core.Domain.ManualCost", b =>
{
b.HasOne("MeterVault.Core.Domain.CostCategory", null)
.WithMany()
.HasForeignKey("CategoryId")
.OnDelete(DeleteBehavior.SetNull)
.HasConstraintName("fk_manual_cost_cost_category_category_id");
b.HasOne("MeterVault.Core.Domain.Meter", null)
.WithMany()
.HasForeignKey("MeterId")
.OnDelete(DeleteBehavior.SetNull)
.HasConstraintName("fk_manual_cost_meter_meter_id");
});
modelBuilder.Entity("MeterVault.Core.Domain.Meter", b =>
{
b.HasOne("MeterVault.Core.Domain.EnergyType", "EnergyType")
.WithMany("Meters")
.HasForeignKey("EnergyTypeId")
.OnDelete(DeleteBehavior.Restrict)
.IsRequired()
.HasConstraintName("fk_meter_energy_type_energy_type_id");
b.Navigation("EnergyType");
});
modelBuilder.Entity("MeterVault.Core.Domain.MeterEvent", b =>
{
b.HasOne("MeterVault.Core.Domain.Meter", null)
.WithMany()
.HasForeignKey("MeterId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired()
.HasConstraintName("fk_meter_event_meter_meter_id");
});
modelBuilder.Entity("MeterVault.Core.Domain.MeterSource", b =>
{
b.HasOne("MeterVault.Core.Domain.IngestionEndpoint", "Endpoint")
.WithMany()
.HasForeignKey("EndpointId")
.OnDelete(DeleteBehavior.SetNull)
.HasConstraintName("fk_meter_source_ingestion_endpoints_endpoint_id");
b.HasOne("MeterVault.Core.Domain.Meter", "Meter")
.WithMany("Sources")
.HasForeignKey("MeterId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired()
.HasConstraintName("fk_meter_source_meter_meter_id");
b.Navigation("Endpoint");
b.Navigation("Meter");
});
modelBuilder.Entity("MeterVault.Core.Domain.Reading", b =>
{
b.HasOne("MeterVault.Core.Domain.Meter", null)
.WithMany()
.HasForeignKey("MeterId")
.OnDelete(DeleteBehavior.Restrict)
.IsRequired()
.HasConstraintName("fk_reading_meter_meter_id");
});
modelBuilder.Entity("MeterVault.Core.Domain.Tank", b =>
{
b.HasOne("MeterVault.Core.Domain.Meter", "Meter")
.WithMany()
.HasForeignKey("MeterId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired()
.HasConstraintName("fk_tank_meter_meter_id");
b.Navigation("Meter");
});
modelBuilder.Entity("MeterVault.Core.Domain.CostCategory", b =>
{
b.Navigation("Members");
});
modelBuilder.Entity("MeterVault.Core.Domain.EnergyType", b =>
{
b.Navigation("Meters");
});
modelBuilder.Entity("MeterVault.Core.Domain.Meter", b =>
{
b.Navigation("Sources");
});
#pragma warning restore 612, 618
}
}
}
@@ -0,0 +1,61 @@
using Microsoft.EntityFrameworkCore.Migrations;
#nullable disable
namespace MeterVault.Infrastructure.Persistence.Migrations
{
/// <summary>
/// Timescale continuous aggregates that roll normalized consumption up to daily / monthly /
/// yearly buckets in the instance timezone (SDD §5.4, §10). Dashboards read these, never the
/// raw hypertable. CREATE MATERIALIZED VIEW … WITH (timescaledb.continuous) and the policy
/// calls cannot run inside a transaction, so each is issued with suppressTransaction: true and
/// as its own statement; once-only execution is guaranteed by __EFMigrationsHistory.
/// </summary>
public partial class ContinuousAggregates : Migration
{
private const string Timezone = "Europe/Berlin";
/// <inheritdoc />
protected override void Up(MigrationBuilder migrationBuilder)
{
CreateAggregate(migrationBuilder, "consumption_daily", "1 day");
CreateAggregate(migrationBuilder, "consumption_monthly", "1 month");
CreateAggregate(migrationBuilder, "consumption_yearly", "1 year");
// end_offset must be at least one bucket wide; the current (incomplete) bucket is still
// reflected at query time via Timescale real-time aggregation.
AddPolicy(migrationBuilder, "consumption_daily", startOffset: "30 days", endOffset: "1 day");
AddPolicy(migrationBuilder, "consumption_monthly", startOffset: "1 year", endOffset: "1 month");
AddPolicy(migrationBuilder, "consumption_yearly", startOffset: "10 years", endOffset: "1 year");
}
/// <inheritdoc />
protected override void Down(MigrationBuilder migrationBuilder)
{
// Dropping the materialized view removes its refresh policy job too.
migrationBuilder.Sql("DROP MATERIALIZED VIEW IF EXISTS consumption_yearly;", suppressTransaction: true);
migrationBuilder.Sql("DROP MATERIALIZED VIEW IF EXISTS consumption_monthly;", suppressTransaction: true);
migrationBuilder.Sql("DROP MATERIALIZED VIEW IF EXISTS consumption_daily;", suppressTransaction: true);
}
private static void CreateAggregate(MigrationBuilder builder, string name, string bucket)
{
builder.Sql(
$"CREATE MATERIALIZED VIEW {name} WITH (timescaledb.continuous) AS " +
$"SELECT time_bucket(INTERVAL '{bucket}', time, '{Timezone}') AS bucket, " +
"meter_id, kind, sum(amount) AS amount " +
"FROM consumption GROUP BY bucket, meter_id, kind WITH NO DATA;",
suppressTransaction: true);
}
private static void AddPolicy(MigrationBuilder builder, string name, string startOffset, string endOffset)
{
builder.Sql(
$"SELECT add_continuous_aggregate_policy('{name}', " +
$"start_offset => INTERVAL '{startOffset}', " +
$"end_offset => INTERVAL '{endOffset}', " +
"schedule_interval => INTERVAL '1 hour');",
suppressTransaction: true);
}
}
}