Merged PR 2374: addeding domain layer extrraction
# Summary This PR introduces a **Case Lifecycle Domain Boundary** to centralize lifecycle decision logic and reduce coupling within the appeals application. The work is **behaviour-preserving** and introduces no intentional changes to business rules, CRM integrations, translations, dashboards, API routes, or user-facing functionality. ## What was added New lifecycle boundary: ```text lib/domain/case-lifecycle/ ``` Key responsibilities extracted: - Specialist process normalization - Appeal type mapping - Specialist process stage override mapping - Stage case-type resolution - Stage catalogue lookup - Closed-case status recognition - Lifecycle stage index resolution - Lifecycle stage status assignment ## Behaviour preserved Characterization tests were added before each extraction to preserve: - Appeal type mapping and aliases - Specialist process handling - Lifecycle stage progression - Closed-case handling - Status assignment (`complete`, `in-progress`, `not-started`) - Existing ROW behaviour - Existing `statuscode` lifecycle semantics Closed-case recognition remains unchanged for: ```text 1000 5 6 846040013 846040059 846040060 ``` ## Documentation Added: ```text lib/domain/case-lifecycle/README.md ``` Documenting: - Boundary ownership - Non-goals - Lifecycle invariants - Known architectural constraints - Future extraction roadmap ## Testing Added lifecycle characterization coverage for: - Stage wrapper behaviour - Specialist process normalization - Appeal type mapping - Specialist process stage mapping - Stage case-type resolution - Stage catalogue lookup - Progress behaviour - Closed-case status handling - Stage index resolution - Stage status assignment ## Validation - Lifecycle characterization tests passed - `npm run lint` passed with no errors ## Out of Scope No changes to: - Stage catalogue ownership - Representation eligibility - Dashboard calculations - CRM/OData queries - API routes - Redux state - EN/CY translations - Event visibility logic ## Risk **Low risk** The refactor was delivered through small, characterization-first slices with no functional changes intended. Related work items: #23527
This commit is contained in:
Robert Bond
@@ -1,3 +1,8 @@
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import { getStageCaseTypeKey } from "../../../../lib/domain/case-lifecycle/getStageCaseTypeKey";
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import { getStagesForCaseTypeKey } from "../../../../lib/domain/case-lifecycle/getStagesForCaseTypeKey";
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import { getLifecycleStageIndex } from "../../../../lib/domain/case-lifecycle/getLifecycleStageIndex";
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import { getLifecycleStageStatus } from "../../../../lib/domain/case-lifecycle/getLifecycleStageStatus";
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const slugify = (value) =>
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value
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.toString()
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@@ -771,106 +776,10 @@ export const stagesByCaseType = {
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])
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};
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export const caseTypeAliases = {
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// Planning S78 group
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S78: "PLANNING_S78",
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PLANNING_78: "PLANNING_S78",
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PLANNING_S78: "PLANNING_S78",
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CONDITIONS_73_79: "CONDITIONS_73_79",
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LBCAC: "LBCAC",
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LDCS: "LDCS",
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PLANNING_OBLIGATIONS_S106: "PLANNING_OBLIGATIONS_S106",
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PRIOR_NOTIFICATION: "PRIOR_NOTIFICATION",
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// Other types
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HAS: "HAS",
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CALL_INS: "CALL_INS",
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CALL_IN: "CALL_INS",
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ENFORCEMENT: "ENFORCEMENT",
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ENFORCEMENT_LISTED_BUILDING: "ENFORCEMENT_LISTED_BUILDING",
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MAINTENANCE_OF_LAND: "MAINTENANCE_OF_LAND",
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RIGHTS_OF_WAY_SCHEDULE_14: "RIGHTS_OF_WAY_SCHEDULE_14",
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RIGHTS_OF_WAY_ORDERS: "RIGHTS_OF_WAY_ORDERS",
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REQUESTS_FOR_DIRECTION: "REQUESTS_FOR_DIRECTION",
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ADVERTS: "ADVERTS",
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HEDGEROW_TPO: "HEDGEROW_TPO",
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COMMON_LAND: "COMMON_LAND",
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COMPULSORY_PURCHASE_ORDERS: "COMPULSORY_PURCHASE_ORDERS",
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ELECTRICITY_ACT: "ELECTRICITY_ACT",
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HARBOUR_REVISION_ORDER: "HARBOUR_REVISION_ORDER",
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TRANSPORT_WORKS: "TRANSPORT_WORKS",
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WAYLEAVE: "WAYLEAVE",
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NON_VALIDATION: "NON_VALIDATION",
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DNS: "DNS",
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SIP: "SIP"
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};
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const normaliseCaseType = (caseType) =>
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caseType
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?.toString()
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.trim()
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.toUpperCase()
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.replace(/&/g, "AND")
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.replace(/[^A-Z0-9]+/g, "_")
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.replace(/^_|_$/g, "");
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const specialistProcessKeyById = {
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// TODO: replace these with the real CRM option-set values
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846040000: "RIGHTS_OF_WAY_ORDERS",
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846040100: "RIGHTS_OF_WAY_ORDERS",
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846040001: "RIGHTS_OF_WAY_ORDERS",
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846040101: "RIGHTS_OF_WAY_ORDERS",
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846040002: "RIGHTS_OF_WAY_SCHEDULE_14",
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846040102: "RIGHTS_OF_WAY_SCHEDULE_14",
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846040003: "REQUESTS_FOR_DIRECTION",
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846040103: "REQUESTS_FOR_DIRECTION"
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};
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const appealTypeSpecialistProcessStageMap = {
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846040015: specialistProcessKeyById
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};
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const resolveStages = (caseTypeOrAppealTypeId, specialistProcess) => {
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const appealTypeId = Number(caseTypeOrAppealTypeId);
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const key = getStageCaseTypeKey(caseTypeOrAppealTypeId, specialistProcess);
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const specialistProcessKey =
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appealTypeSpecialistProcessStageMap[appealTypeId]?.[specialistProcess];
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const appealTypeKey =
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specialistProcessKey || caseTypeKeyByAppealTypeId[appealTypeId];
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const normalised = normaliseCaseType(caseTypeOrAppealTypeId);
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const key = appealTypeKey || caseTypeAliases[normalised] || normalised;
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const entry = stagesByCaseType[key];
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if (!entry) return [];
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if (typeof entry === "string") {
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return stagesByCaseType[entry] || [];
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}
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return entry;
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};
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const caseClosedStatusIds = [1000, 5, 6, 846040013, 846040060, 846040059];
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const isCaseClosedStatus = (stageId) =>
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caseClosedStatusIds.includes(Number(stageId));
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const getStageIndex = (stages, currentStageNumber) => {
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const exactIndex = stages.findIndex(
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(stage) => Number(stage.stageId) === currentStageNumber
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);
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if (exactIndex !== -1) return exactIndex;
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if (isCaseClosedStatus(currentStageNumber)) {
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return stages.findIndex((stage) => stage.titleKey === "case-closed");
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}
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return -1;
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return getStagesForCaseTypeKey(key);
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};
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export const getStagesForAppealType = (
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@@ -879,46 +788,10 @@ export const getStagesForAppealType = (
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specialistProcess
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) => {
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const stages = resolveStages(caseType, specialistProcess);
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const currentStageNumber = Number(currentStageId);
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const currentIndex = getStageIndex(stages, currentStageNumber);
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const currentIndex = getLifecycleStageIndex(stages, currentStageId);
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return stages.map((stage, index) => ({
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...stage,
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status:
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currentIndex === -1
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? "not-started"
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: index < currentIndex
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? "complete"
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: index === currentIndex
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? "in-progress"
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: "not-started"
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status: getLifecycleStageStatus(index, currentIndex)
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}));
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};
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export const caseTypeKeyByAppealTypeId = {
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846040000: "PLANNING_S78",
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846040001: "CONDITIONS_73_79",
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846040002: "SIP",
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846040003: "PLANNING_OBLIGATIONS_S106",
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846040004: "HAS",
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846040005: "ENFORCEMENT",
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846040006: "ENFORCEMENT_LISTED_BUILDING",
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846040007: "MAINTENANCE_OF_LAND",
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846040008: "LDCS",
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846040009: "PLANNING_S78",
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846040010: "CALL_INS",
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846040011: "DNS",
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846040012: "ELECTRICITY_ACT",
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846040013: "TRANSPORT_WORKS",
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846040014: "HARBOUR_REVISION_ORDER",
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846040015: "RIGHTS_OF_WAY_SCHEDULE_14",
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846040016: "COMMON_LAND",
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846040017: "HEDGEROW_TPO",
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846040018: "ADVERTS",
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846040019: "COMPULSORY_PURCHASE_ORDERS",
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846040020: "PLANNING_S78",
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846040021: "WAYLEAVE",
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846040024: "NON_VALIDATION",
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846040025: "LBCAC"
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};
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