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feat(inventory): Bestand reservieren mit FEFO-Allokation (#12)

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Implementiert Story 4.1: Reservierung von Beständen mit automatischer
FEFO-Allokation (First-Expired-First-Out) über verfügbare Chargen.

Domain: Reservation-Entity, StockBatchAllocation, ReservationDraft,
FEFO-Logik in Stock.reserve(), availableQuantity() berücksichtigt
bestehende Allokationen. Neue Error-Varianten für InsufficientStock,
InvalidReferenceType, InvalidReservationPriority, ReservationNotFound.

API: POST /api/inventory/stocks/{stockId}/reservations → 201 Created.
Liquibase: reservations + stock_batch_allocations Tabellen mit FK- und
CHECK-Constraints.

Tests: 43 neue Tests (22 Domain, 10 UseCase, 11 Integration) für
FEFO-Logik, Validierung, Mengenprüfung, Auth und Edge Cases.
This commit is contained in:
Sebastian Frick 2026-02-23 23:27:37 +01:00
parent b77b209f10
commit 0b49bb2977
38 changed files with 1656 additions and 57 deletions
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102
backend/src/main/resources/db/changelog/changes/026-create-reservations-schema.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<databaseChangeLog
xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-latest.xsd">
<changeSet id="024-create-reservations-table" author="effigenix">
<createTable tableName="reservations">
<column name="id" type="VARCHAR(36)">
<constraints primaryKey="true" nullable="false"/>
</column>
<column name="stock_id" type="VARCHAR(36)">
<constraints nullable="false"/>
</column>
<column name="reference_type" type="VARCHAR(30)">
<constraints nullable="false"/>
</column>
<column name="reference_id" type="VARCHAR(100)">
<constraints nullable="false"/>
</column>
<column name="quantity_amount" type="DECIMAL(19,6)">
<constraints nullable="false"/>
</column>
<column name="quantity_unit" type="VARCHAR(20)">
<constraints nullable="false"/>
</column>
<column name="priority" type="VARCHAR(20)">
<constraints nullable="false"/>
</column>
<column name="reserved_at" type="TIMESTAMP WITH TIME ZONE">
<constraints nullable="false"/>
</column>
</createTable>
<addForeignKeyConstraint
baseTableName="reservations" baseColumnNames="stock_id"
referencedTableName="stocks" referencedColumnNames="id"
constraintName="fk_reservations_stock_id"
onDelete="CASCADE"/>
<sql>
ALTER TABLE reservations ADD CONSTRAINT chk_reservation_reference_type
CHECK (reference_type IN ('PRODUCTION_ORDER', 'SALE_ORDER'));
</sql>
<sql>
ALTER TABLE reservations ADD CONSTRAINT chk_reservation_priority
CHECK (priority IN ('URGENT', 'NORMAL', 'LOW'));
</sql>
<createIndex tableName="reservations" indexName="idx_reservations_stock_id">
<column name="stock_id"/>
</createIndex>
<createIndex tableName="reservations" indexName="idx_reservations_reference">
<column name="reference_type"/>
<column name="reference_id"/>
</createIndex>
</changeSet>
<changeSet id="024-create-stock-batch-allocations-table" author="effigenix">
<createTable tableName="stock_batch_allocations">
<column name="id" type="VARCHAR(36)">
<constraints primaryKey="true" nullable="false"/>
</column>
<column name="reservation_id" type="VARCHAR(36)">
<constraints nullable="false"/>
</column>
<column name="stock_batch_id" type="VARCHAR(36)">
<constraints nullable="false"/>
</column>
<column name="allocated_quantity_amount" type="DECIMAL(19,6)">
<constraints nullable="false"/>
</column>
<column name="allocated_quantity_unit" type="VARCHAR(20)">
<constraints nullable="false"/>
</column>
</createTable>
<addForeignKeyConstraint
baseTableName="stock_batch_allocations" baseColumnNames="reservation_id"
referencedTableName="reservations" referencedColumnNames="id"
constraintName="fk_allocations_reservation_id"
onDelete="CASCADE"/>
<addForeignKeyConstraint
baseTableName="stock_batch_allocations" baseColumnNames="stock_batch_id"
referencedTableName="stock_batches" referencedColumnNames="id"
constraintName="fk_allocations_stock_batch_id"
onDelete="RESTRICT"/>
<createIndex tableName="stock_batch_allocations" indexName="idx_allocations_reservation_id">
<column name="reservation_id"/>
</createIndex>
<createIndex tableName="stock_batch_allocations" indexName="idx_allocations_stock_batch_id">
<column name="stock_batch_id"/>
</createIndex>
</changeSet>
</databaseChangeLog>