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CostCurveAuthoring,
CostCurveDiscreteVariant,
CostCurveDriverSpec,
CostCurveRead,
CostCurveTemplateRead,
PatchedCostCurveAuthoring,
} from "@/api/apiStore.gen";
import {
CostBasisEnum,
EvaluationKindEnum,
RoleEnum,
SourceOptionsEnum,
} from "@/api/apiStore.gen";
type FieldMessages = Record<string, string>;
export type CostCurveDraft = {
curve_key: string;
name: string;
equipment_category: string;
equipment_subtype: string;
cost_basis: CostBasisEnum;
evaluation_kind: EvaluationKindEnum;
output_unit: string;
expression_text: string;
required_driver_specs: CostCurveDriverSpec[];
discrete_variants: CostCurveDiscreteVariant[];
valid_min: string;
valid_max: string;
valid_range_note: string;
currency: string;
basis_date: string;
basis_index_name: string;
basis_index_value: string;
source_document_title: string;
source_page: string;
source_figure: string;
source_data_origin: string;
source_range_precision: string;
source_license_status: string;
source_reference: string;
applicability_warning: string;
notes: string;
active: boolean;
};
export type CostCurveDraftDefaults = Partial<CostCurveDraft>;
export function costCurveDraftFromRead(
curve?: CostCurveRead,
defaults?: CostCurveDraftDefaults,
): CostCurveDraft {
return {
curve_key: curve?.curve_key ?? defaults?.curve_key ?? "",
name: curve?.name ?? defaults?.name ?? "",
equipment_category:
curve?.equipment_category ?? defaults?.equipment_category ?? "",
equipment_subtype:
curve?.equipment_subtype ?? defaults?.equipment_subtype ?? "",
cost_basis:
curve?.cost_basis ?? defaults?.cost_basis ?? CostBasisEnum.Purchase,
evaluation_kind:
curve?.evaluation_kind ??
defaults?.evaluation_kind ??
EvaluationKindEnum.Expression,
output_unit: curve?.output_unit ?? defaults?.output_unit ?? "NZD",
expression_text: curve?.expression_text ?? defaults?.expression_text ?? "",
required_driver_specs:
curve?.required_driver_specs ??
defaults?.required_driver_specs ??
defaultFormulaSpecs(),
discrete_variants:
curve?.discrete_variants ?? defaults?.discrete_variants ?? [],
valid_min: curve?.valid_min ?? defaults?.valid_min ?? "",
valid_max: curve?.valid_max ?? defaults?.valid_max ?? "",
valid_range_note:
curve?.valid_range_note ?? defaults?.valid_range_note ?? "",
currency: curve?.currency ?? defaults?.currency ?? "NZD",
basis_date: curve?.basis_date ?? defaults?.basis_date ?? "",
basis_index_name:
curve?.basis_index_name ?? defaults?.basis_index_name ?? "",
basis_index_value:
curve?.basis_index_value ?? defaults?.basis_index_value ?? "",
source_document_title:
curve?.source_document_title ?? defaults?.source_document_title ?? "",
source_page: curve?.source_page ?? defaults?.source_page ?? "",
source_figure: curve?.source_figure ?? defaults?.source_figure ?? "",
source_data_origin:
curve?.source_data_origin ?? defaults?.source_data_origin ?? "",
source_range_precision:
curve?.source_range_precision ?? defaults?.source_range_precision ?? "",
source_license_status:
curve?.source_license_status ?? defaults?.source_license_status ?? "",
source_reference:
curve?.source_reference ?? defaults?.source_reference ?? "",
applicability_warning:
curve?.applicability_warning ?? defaults?.applicability_warning ?? "",
notes: curve?.notes ?? defaults?.notes ?? "",
active: curve?.active ?? defaults?.active ?? true,
};
}
export function costCurveDraftDefaultsFromTemplate(
template: CostCurveTemplateRead,
): CostCurveDraftDefaults {
return {
curve_key: "",
name: template.name,
equipment_category: template.equipment_category,
equipment_subtype: template.equipment_subtype,
cost_basis: template.cost_basis as CostBasisEnum,
evaluation_kind: template.evaluation_kind as EvaluationKindEnum,
output_unit: template.output_unit,
expression_text: template.expression_text,
required_driver_specs: template.required_driver_specs ?? [],
discrete_variants: template.discrete_variants ?? [],
valid_min: template.valid_min,
valid_max: template.valid_max,
valid_range_note: template.valid_range_note,
currency: template.currency,
basis_date: template.basis_date,
basis_index_name: template.basis_index_name,
basis_index_value: template.basis_index_value,
source_document_title: template.source_document_title,
source_page: template.source_page,
source_figure: template.source_figure,
source_data_origin: template.source_data_origin,
source_range_precision: template.source_range_precision,
source_license_status: template.source_license_status,
source_reference: template.source_reference,
applicability_warning: template.applicability_warning,
notes: template.notes,
active: template.active,
};
}
export function validateCostCurveDraft(draft: CostCurveDraft) {
if (!draft.name.trim()) {
return { field: "name", message: "Curve name is required." };
}
if (!draft.equipment_category.trim()) {
return {
field: "equipment_category",
message: "Equipment category is required.",
};
}
const driverSpecError = validateDriverSpecs(draft);
Iif (driverSpecError) return driverSpecError;
if (
draft.evaluation_kind === EvaluationKindEnum.Expression &&
!draft.expression_text.trim()
) {
return {
field: "expression_text",
message: "Cost expression is required.",
};
}
if (
draft.evaluation_kind === EvaluationKindEnum.DiscreteFamily &&
draft.discrete_variants.length === 0
) {
return {
field: "discrete_variants",
message: "Discrete-family curves require catalog variants.",
};
}
const formulaError = validateExpressionVariables(draft);
Iif (formulaError) return formulaError;
return null;
}
export function mutationErrorMessage(error: unknown) {
const source = error && typeof error === "object" ? error : {};
const data =
"data" in source && source.data && typeof source.data === "object"
? source.data
: null;
const fieldErrors = data ? flattenApiErrors(data) : [];
if (fieldErrors.length > 0) {
return "Some cost curve fields need attention.";
}
return "The cost curve could not be saved.";
}
function flattenApiErrors(value: unknown): string[] {
if (typeof value === "string") {
return [value];
}
if (Array.isArray(value)) {
return value.flatMap((item) => flattenApiErrors(item));
}
Iif (!value || typeof value !== "object") return [];
return Object.entries(value)
.filter(([key]) => key !== "detail")
.flatMap(([, child]) => flattenApiErrors(child));
}
export function apiFieldMessages(error: unknown): FieldMessages {
const source = error && typeof error === "object" ? error : {};
const data =
"data" in source && source.data && typeof source.data === "object"
? source.data
: null;
Iif (!data || Array.isArray(data)) return {};
return Object.fromEntries(
Object.entries(data).map(([field, value]) => [
field,
flattenApiErrors(value).join(" "),
]),
);
}
export function costCurveCreatePayload(
draft: CostCurveDraft,
): CostCurveAuthoring {
return {
...costCurvePatchPayload(draft),
curve_key: draft.curve_key.trim() || generatedCurveKey(draft.name),
name: draft.name.trim(),
equipment_category: draft.equipment_category.trim(),
} as CostCurveAuthoring;
}
export function costCurvePatchPayload(
draft: CostCurveDraft,
): PatchedCostCurveAuthoring {
const outputUnit = draft.output_unit.trim() || draft.currency || "NZD";
return {
curve_key: draft.curve_key.trim() || generatedCurveKey(draft.name),
name: draft.name.trim(),
equipment_category: draft.equipment_category.trim(),
equipment_subtype: draft.equipment_subtype.trim(),
cost_basis: draft.cost_basis,
evaluation_kind: draft.evaluation_kind,
output_unit: outputUnit,
expression_text: costCurveAuthoringExpression(draft),
required_driver_specs: draft.required_driver_specs,
discrete_variants: draft.discrete_variants,
valid_min: nullableString(draft.valid_min),
valid_max: nullableString(draft.valid_max),
valid_range_note: draft.valid_range_note.trim(),
currency: currencyFromOutputUnit(outputUnit, draft.currency),
basis_date: nullableString(draft.basis_date),
basis_index_name: draft.basis_index_name.trim(),
basis_index_value: nullableString(draft.basis_index_value),
source_document_title: draft.source_document_title.trim(),
source_page: draft.source_page.trim(),
source_figure: draft.source_figure.trim(),
source_data_origin: draft.source_data_origin.trim(),
source_range_precision: draft.source_range_precision.trim(),
source_license_status: draft.source_license_status.trim(),
source_reference: draft.source_reference.trim(),
applicability_warning: draft.applicability_warning.trim(),
notes: draft.notes.trim(),
active: draft.active,
};
}
function costCurveAuthoringExpression(draft: CostCurveDraft) {
return draft.expression_text.trim();
}
function currencyFromOutputUnit(outputUnit: string, fallback: string) {
const unit = outputUnit.trim().toUpperCase();
if (/^[A-Z]{3}$/.test(unit)) return unit;
const millionCurrencyMatch = /^M([A-Z]{3})$/.exec(unit);
Iif (millionCurrencyMatch) return millionCurrencyMatch[1];
const cleanFallback = fallback.trim().toUpperCase();
return /^[A-Z]{3}$/.test(cleanFallback) ? cleanFallback : "NZD";
}
function slugValue(value: string) {
return value
.trim()
.toLowerCase()
.replace(/[^a-z0-9]+/g, "_")
.replace(/^_+|_+$/g, "");
}
function generatedCurveKey(name: string) {
const slug = slugValue(name);
return `user_${slug || "cost_curve"}_${Date.now()}`;
}
export function costCurveFormulaSummary(curve: CostCurveRead) {
if (curve.evaluation_kind === EvaluationKindEnum.DiscreteFamily) {
return `${curve.discrete_variants?.length ?? 0} curve options`;
}
return curve.expression_text || "Expression not set";
}
function nullableString(value: string) {
const trimmed = value.trim();
return trimmed ? trimmed : null;
}
export function defaultFormulaSpecs(): CostCurveDriverSpec[] {
return [
{
key: "",
label: "Cost driver",
role: RoleEnum.FormulaInput,
variable_symbol: "x",
unit: "",
required: true,
primary: true,
source_options: [SourceOptionsEnum.Property, SourceOptionsEnum.Manual],
},
];
}
function validateDriverSpecs(draft: CostCurveDraft) {
const specs = draft.required_driver_specs;
const formulaSpecs = specs.filter(
(spec) => spec.role === RoleEnum.FormulaInput,
);
const selectorSpecs = specs.filter(
(spec) => spec.role === RoleEnum.DiscreteSelector,
);
const symbols = new Set<string>();
let primaryFormulaInputs = 0;
for (const [index, spec] of specs.entries()) {
const field = `required_driver_specs.${index}`;
const label = spec.label.trim();
const unit = spec.unit.trim();
Iif (!label) return { field, message: "Input label is required." };
Iif (!unit) return { field, message: "Input unit is required." };
if (spec.role === RoleEnum.FormulaInput) {
const symbol = spec.variable_symbol?.trim() ?? "";
Iif (!symbol) return { field, message: "Formula symbol is required." };
if (symbols.has(symbol)) {
return { field, message: "Formula symbols must be unique." };
}
symbols.add(symbol);
if (spec.primary) primaryFormulaInputs += 1;
}
if (
spec.role === RoleEnum.DiscreteSelector &&
spec.variable_symbol?.trim()
) {
return {
field,
message: "Sizing inputs cannot have formula symbols.",
};
}
}
if (formulaSpecs.length === 0) {
return {
field: "required_driver_specs",
message: "At least one formula input is required.",
};
}
if (primaryFormulaInputs !== 1) {
return {
field: "required_driver_specs",
message: "Exactly one formula input must be primary.",
};
}
if (
draft.evaluation_kind === EvaluationKindEnum.DiscreteFamily &&
selectorSpecs.length === 0
) {
return {
field: "required_driver_specs",
message: "Discrete-family curves require at least one sizing input.",
};
}
return null;
}
function validateExpressionVariables(draft: CostCurveDraft) {
const formulaSymbols = draft.required_driver_specs
.filter((spec) => spec.role === RoleEnum.FormulaInput)
.map((spec) => spec.variable_symbol?.trim() ?? "")
.filter(Boolean);
const expressions =
draft.evaluation_kind === EvaluationKindEnum.DiscreteFamily
? draft.discrete_variants.map((variant) => variant.expression_text)
: [draft.expression_text];
for (const expression of expressions) {
if (!expression.trim()) {
return {
field:
draft.evaluation_kind === EvaluationKindEnum.DiscreteFamily
? "discrete_variants"
: "expression_text",
message: "Cost expression is required.",
};
}
const tokens = Array.from(
expression.matchAll(/\b[A-Za-z_][A-Za-z0-9_]*\b/g),
);
const functionNames = tokens
.filter((match) =>
expression
.slice(match.index! + match[0].length)
.trimStart()
.startsWith("("),
)
.map(([name]) => name);
if (functionNames.length > 0) {
return {
field:
draft.evaluation_kind === EvaluationKindEnum.DiscreteFamily
? "discrete_variants"
: "expression_text",
message: `Expression uses unsupported functions: ${Array.from(new Set(functionNames)).join(", ")}.`,
};
}
const usedSymbols = new Set(tokens.map(([name]) => name));
const unused = formulaSymbols.filter((symbol) => !usedSymbols.has(symbol));
if (unused.length > 0) {
return {
field:
draft.evaluation_kind === EvaluationKindEnum.DiscreteFamily
? "discrete_variants"
: "expression_text",
message: `Expression must use ${unused.join(", ")}.`,
};
}
const unsupported = Array.from(usedSymbols).filter(
(symbol) => !formulaSymbols.includes(symbol),
);
if (unsupported.length > 0) {
return {
field:
draft.evaluation_kind === EvaluationKindEnum.DiscreteFamily
? "discrete_variants"
: "expression_text",
message: `Expression uses undeclared variables: ${unsupported.join(", ")}.`,
};
}
}
return null;
}
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