# Tasks: Implement Domain Models

## Phase 1: Foundation (Enums, Interfaces, Helpers)

- [x] Create JdeDateConverter helper class
  - Location: `JdeScoping.Core/Helpers/JdeDateConverter.cs`
  - Implements: CYYDDD date format conversion, HHMMSS time conversion
  - Validation: Unit tests for valid dates, zero dates, invalid formats all pass

- [x] Create SearchStatus enum
  - Location: `JdeScoping.Core/Models/Enums/SearchStatus.cs`
  - Values: New (0), Submitted (1), Started (2), Ended (3), Error (4)
  - Validation: Has `[JsonConverter(typeof(JsonStringEnumConverter))]` attribute

- [x] Create UpdateTypes enum
  - Location: `JdeScoping.Core/Models/Enums/UpdateTypes.cs`
  - Values: Hourly (1), Daily (2), Mass (3)
  - Validation: Has `[JsonConverter(typeof(JsonStringEnumConverter))]` attribute

- [x] Create IBusinessUnit interface
  - Location: `JdeScoping.Core/Interfaces/IBusinessUnit.cs`
  - Properties: Code, Description, LastUpdateDT
  - Validation: Compiles, used by WorkCenter and ProfitCenter

## Phase 2: Search-Related Entities

- [x] Replace Search entity
  - Location: `JdeScoping.Core/Models/Search.cs`
  - Properties: ID, UserName, Name, Status, SubmitDT, StartDT, EndDT, CriteriaJSON, Criteria, Results
  - Validation: Matches spec requirement, Results is `byte[]?`

- [x] Create SearchCriteria entity
  - Location: `JdeScoping.Core/Models/SearchCriteria.cs`
  - Properties: MinimumDT, MaximumDT, WorkOrderNumbers, ItemNumbers, ProfitCenters, WorkCenters, OperatorIDs, ComponentLotNumbers, ExtractMisData, PartOperations
  - Validation: All list properties initialized to empty lists

- [x] Create SearchUpdate entity
  - Location: `JdeScoping.Core/Models/SearchUpdate.cs`
  - Properties: ID, UserName, Name, Status, SubmitDT, StartDT, EndDT, Timestamp
  - Validation: Constructor accepts Search, sets Timestamp to DateTime.UtcNow

- [x] Create StatusUpdate entity
  - Location: `JdeScoping.Core/Models/StatusUpdate.cs`
  - Properties: Message, Timestamp
  - Validation: Compiles, simple message DTO

## Phase 3: Work Order Entities

- [x] Replace WorkOrder entity
  - Location: `JdeScoping.Core/Models/WorkOrder.cs`
  - Properties: WorkOrderNumber, BranchCode, LotNumber?, ItemNumber, ShortItemNumber, ParentWorkOrderNumber?, OrderQuantity, HeldQuantity, ShippedQuantity, StatusCode, StatusCodeUpdateDT, IssueDate, StartDate, RoutingType, LastUpdateDT
  - Validation: Private JDE date fields, computed LastUpdateDT, nullable annotations

- [x] Create WorkOrderStep entity
  - Location: `JdeScoping.Core/Models/WorkOrderStep.cs`
  - Properties: WorkOrderNumber, BranchCode, WorkCenterCode, StepNumber, StepDescription?, FunctionOperationDescription?, StepTypeCode, StartDT, EndDT, FunctionCode, ScrappedQuantity, LastUpdateDT
  - Validation: Nullable annotations on optional fields

- [x] Create WorkOrderTime entity
  - Location: `JdeScoping.Core/Models/WorkOrderTime.cs`
  - Properties: UniqueID, WorkOrderNumber, BranchCode, WorkCenterCode, StepNumber, AddressNumber, GlDate, LastUpdateDT
  - Validation: Matches F31122 table structure

- [x] Create WorkOrderComponent entity
  - Location: `JdeScoping.Core/Models/WorkOrderComponent.cs`
  - Properties: UniqueID, WorkOrderNumber, LotNumber?, BranchCode, ShortItemNumber?, Quantity, LastUpdateDT
  - Validation: ShortItemNumber and LotNumber are nullable

- [x] Create WorkOrderRouting entity
  - Location: `JdeScoping.Core/Models/WorkOrderRouting.cs`
  - Properties: UserID, BatchNumber, TransactionNumber, LineNumber, StepNumber, WorkCenterCode, WorkOrderNumber, RoutingType, BranchCode, StepDescription?, FunctionCode, TransactionDate, LastUpdateDT
  - Validation: Compiles, nullable StepDescription

## Phase 4: Lot Entities

- [x] Replace Lot entity
  - Location: `JdeScoping.Core/Models/Lot.cs`
  - Properties: LotNumber, BranchCode, ShortItemNumber, ItemNumber, SupplierCode, StatusCode (char), Memo1?, Memo2?, Memo3?, LastUpdateDT
  - Validation: StatusCode is char type, nullable memo fields

- [x] Replace LotUsage entity
  - Location: `JdeScoping.Core/Models/LotUsage.cs`
  - Properties: UniqueID, WorkOrderNumber, LotNumber, BranchCode, ShortItemNumber, Quantity, LastUpdateDT
  - Validation: Cardex entry structure matches spec

- [x] Create LotLocation entity
  - Location: `JdeScoping.Core/Models/LotLocation.cs`
  - Properties: LotNumber, ShortItemNumber, BranchCode, Location, LastUpdateDT
  - Validation: Compiles with all properties

## Phase 5: Reference Entities

- [x] Replace Item entity
  - Location: `JdeScoping.Core/Models/Item.cs`
  - Properties: ShortItemNumber, ItemNumber, Description, PlanningFamily?, StockingType?, LastUpdateDT
  - Validation: Dual identifier pattern (ShortItemNumber + ItemNumber)

- [x] Replace WorkCenter entity
  - Location: `JdeScoping.Core/Models/WorkCenter.cs`
  - Properties: Code, Description, LastUpdateDT
  - Validation: Implements IBusinessUnit interface

- [x] Create ProfitCenter entity
  - Location: `JdeScoping.Core/Models/ProfitCenter.cs`
  - Properties: Code, Description, LastUpdateDT
  - Validation: Implements IBusinessUnit interface

- [x] Create Branch entity
  - Location: `JdeScoping.Core/Models/Branch.cs`
  - Properties: Code, Description, LastUpdateDT
  - Validation: Compiles, matches spec

- [x] Replace JdeUser entity
  - Location: `JdeScoping.Core/Models/JdeUser.cs`
  - Properties: AddressNumber, UserID, FullName, LastUpdateDT
  - Validation: AddressNumber is long, matches spec

- [x] Create StatusCode entity
  - Location: `JdeScoping.Core/Models/StatusCode.cs`
  - Properties: Code, Description, LastUpdateDT
  - Validation: JDE work order status lookup

- [x] Create FunctionCode entity
  - Location: `JdeScoping.Core/Models/FunctionCode.cs`
  - Properties: Code, Description, LastUpdateDT
  - Validation: JDE function code lookup

## Phase 6: Config and Mapping Entities

- [x] Create DataUpdate entity
  - Location: `JdeScoping.Core/Models/DataUpdate.cs`
  - Properties: ID, SourceSystem, SourceData, TableName, StartDT, EndDT, UpdateType, WasSuccessful, NumberRecords
  - Validation: UpdateType uses UpdateTypes enum

- [x] Create OrgHierarchy entity
  - Location: `JdeScoping.Core/Models/OrgHierarchy.cs`
  - Properties: WorkCenterCode, BranchCode, ProfitCenterCode, LastUpdateDT
  - Validation: Profit center to work center mapping

- [x] Create RouteMaster entity
  - Location: `JdeScoping.Core/Models/RouteMaster.cs`
  - Properties: BranchCode, ItemNumber, RoutingType, SequenceNumber, FunctionCode, WorkCenterCode, StartDate, EndDate?, LastUpdateDT
  - Validation: EndDate is nullable

## Phase 7: CMS and External Entities

- [x] Create MisData entity
  - Location: `JdeScoping.Core/Models/MisData.cs`
  - Properties: ItemNumber, BranchCode, SequenceNumber, MisNumber, RevID?, CharNumber, TestDescription?, SamplingType?, SamplingValue?, ToolsGauges?, WorkInstructions?, Status, ReleaseDate?
  - Validation: Many nullable string fields per spec

- [x] Create POReceiver entity
  - Location: `JdeScoping.Core/Models/POReceiver.cs`
  - Properties: OrderNumber, OrderCompany, OrderSuffix, LineNumber, NumberOfLines, InvoiceNumber, BranchCode, LotNumber?, ShortItemNumber (string!), DateReceived, Subledger?, QtyReceived, LastUpdateDT
  - Validation: ShortItemNumber is string (intentional legacy quirk)

- [x] Create POInspect entity
  - Location: `JdeScoping.Core/Models/POInspect.cs`
  - Properties: UniqueID, OrderNumber, OrderCompany, LineNumber, InvoiceNumber, LotNumber?, ShortItemNumber, LastUpdateDT
  - Validation: Compiles with nullable LotNumber

- [x] Create DcsLot entity
  - Location: `JdeScoping.Core/Models/DcsLot.cs`
  - Properties: ItemNumber, LotNumber, LotSuffix?, LastUpdateDT
  - Validation: Simple DCS lot record

- [x] Create CamstarMO entity
  - Location: `JdeScoping.Core/Models/CamstarMO.cs`
  - Properties: MONumber, LastUpdateDT
  - Validation: Simple Camstar manufacturing order

## Phase 8: Auth and User Entities

- [x] Create UserInfo entity
  - Location: `JdeScoping.Core/Models/UserInfo.cs`
  - Properties: Username, FirstName?, LastName?, DisplayName (computed), Title?, EmailAddress?
  - Validation: DisplayName computed property works (fallback to Username)

## Phase 9: Query Support Entities

- [x] Create QueryTypes entity
  - Location: `JdeScoping.Core/Models/QueryTypes.cs`
  - Properties: Code, Name, OrderIndex, filter flags (TimeSpanFilter, WorkOrderFilter, etc.)
  - Validation: Static dictionary pattern, Identify() method stub

- [x] Create TableSpec entity
  - Location: `JdeScoping.Core/Models/TableSpec.cs`
  - Properties: Name, TempTableName (computed), Columns, PrimaryKey
  - Validation: Constructor initializes lists, stub methods exist

- [x] Create ColumnSpec entity
  - Location: `JdeScoping.Core/Models/ColumnSpec.cs`
  - Properties: Name, Definition
  - Validation: Simple column specification

## Phase 10: ViewModels

- [x] Create WorkOrderViewModel
  - Location: `JdeScoping.Core/ViewModels/WorkOrderViewModel.cs`
  - Properties: WorkOrderNumber, ItemNumber
  - Validation: Minimal projection DTO

- [x] Create LotViewModel
  - Location: `JdeScoping.Core/ViewModels/LotViewModel.cs`
  - Properties: LotNumber, ItemNumber
  - Validation: Used by SearchCriteria.ComponentLotNumbers

- [x] Create ItemViewModel
  - Location: `JdeScoping.Core/ViewModels/ItemViewModel.cs`
  - Properties: ItemNumber, Description
  - Validation: Minimal projection DTO

- [x] Create WorkCenterViewModel
  - Location: `JdeScoping.Core/ViewModels/WorkCenterViewModel.cs`
  - Properties: Code, Description
  - Validation: Minimal projection DTO

- [x] Create ProfitCenterViewModel
  - Location: `JdeScoping.Core/ViewModels/ProfitCenterViewModel.cs`
  - Properties: Code, Description
  - Validation: Minimal projection DTO

- [x] Create JdeUserViewModel
  - Location: `JdeScoping.Core/ViewModels/JdeUserViewModel.cs`
  - Properties: AddressNumber, UserID, FullName
  - Validation: Minimal projection DTO

- [x] Create PartOperationViewModel
  - Location: `JdeScoping.Core/ViewModels/PartOperationViewModel.cs`
  - Properties: ItemNumber, OperationNumber, MisNumber, Revision
  - Validation: Used by SearchCriteria.PartOperations

## Phase 11: Extension Methods

- [x] Create WorkOrderExtensions
  - Location: `JdeScoping.Core/Extensions/WorkOrderExtensions.cs`
  - Method: ToViewModel() -> WorkOrderViewModel
  - Validation: Extension method on WorkOrder compiles and works

- [x] Create LotExtensions
  - Location: `JdeScoping.Core/Extensions/LotExtensions.cs`
  - Method: ToViewModel() -> LotViewModel
  - Validation: Extension method on Lot compiles and works

- [x] Create ItemExtensions
  - Location: `JdeScoping.Core/Extensions/ItemExtensions.cs`
  - Method: ToViewModel() -> ItemViewModel
  - Validation: Extension method on Item compiles and works

- [x] Create WorkCenterExtensions
  - Location: `JdeScoping.Core/Extensions/WorkCenterExtensions.cs`
  - Method: ToViewModel() -> WorkCenterViewModel
  - Validation: Extension method on WorkCenter compiles and works

- [x] Create ProfitCenterExtensions
  - Location: `JdeScoping.Core/Extensions/ProfitCenterExtensions.cs`
  - Method: ToViewModel() -> ProfitCenterViewModel
  - Validation: Extension method on ProfitCenter compiles and works

- [x] Create JdeUserExtensions
  - Location: `JdeScoping.Core/Extensions/JdeUserExtensions.cs`
  - Method: ToViewModel() -> JdeUserViewModel
  - Validation: Extension method on JdeUser compiles and works

## Phase 12: Verification

- [x] Verify solution builds
  - Command: `dotnet build NEW/src/JdeScoping.Core/JdeScoping.Core.csproj`
  - Validation: Build succeeds with no errors

- [x] Verify nullable reference types
  - Validation: All nullable properties use `?` annotation, no compiler warnings

- [x] Verify JSON serialization
  - Validation: SearchStatus and UpdateTypes serialize as strings, not integers

- [x] Run OpenSpec validation
  - Command: `openspec validate implement-domain-models --strict`
  - Validation: All requirements marked as covered

- [x] Cross-reference with spec
  - Validation: All 52 requirements from domain-models/spec.md implemented