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import { Button } from "@/ahuora-design-system/ui/button";
import { Label } from "@/ahuora-design-system/ui/label";
import {
Select,
SelectContent,
SelectGroup,
SelectItem,
SelectLabel,
SelectSeparator,
SelectTrigger,
SelectValue,
} from "@/ahuora-design-system/ui/select";
import type {
EconomicsLangFactorDefaultRead,
EquipmentMappingRead,
PatchedEquipmentMapping,
} from "@/api/apiStore.gen";
import { cn } from "@/lib/utils";
import { FormattedNumericInput } from "../shared/ui/EconomicsFormFields";
import { EconomicsWarningNotice } from "../shared/ui/EconomicsWarningNotice";
const GLOBAL_DEFAULT_FACTOR_VALUE = "__global_default__";
const CUSTOM_FACTOR_VALUE = "__custom__";
const INSTALLED_COST_NO_FACTOR_VALUE = "__installed_cost_no_factor__";
const WARNING_INVALID_CLASS =
"aria-[invalid=true]:border-orange-500 aria-[invalid=true]:focus-visible:border-b-orange-500";
const INSTALLATION_FACTOR_PRESETS = [
{
value: "2",
label: "2x",
profile: "typical_existing_infrastructure",
guidance: "Existing foundations and services are mostly reusable.",
},
{
value: "3",
label: "3x",
profile: "typical_new_integration",
guidance: "Supporting infrastructure is materially incomplete.",
},
{
value: "4",
label: "4x",
profile: "complex_or_high_risk",
guidance: "Integration is complex, risky, or unusually site-specific.",
},
] as const;
type LangFactorPreset = {
value: string;
label: string;
profile: string;
guidance: string;
group: "general" | "equipment";
};
type SaveState = {
kind: "idle" | "saving" | "saved" | "error";
message?: string;
};
type EconomicsLangFactorControlsProps = {
mapping: EquipmentMappingRead;
unitObjectType?: string;
langFactorDefaults?: readonly EconomicsLangFactorDefaultRead[];
installedBasis: boolean;
showInstalledBasisNotice: boolean;
canEdit: boolean;
fieldError?: string;
saveState?: SaveState;
className?: string;
noticeClassName?: string;
onMappingPatch: (patch: PatchedEquipmentMapping) => void;
};
export function EconomicsLangFactorControls({
mapping,
unitObjectType = "",
langFactorDefaults = [],
installedBasis,
showInstalledBasisNotice,
canEdit,
fieldError,
saveState,
className,
noticeClassName,
onMappingPatch,
}: EconomicsLangFactorControlsProps) {
const [langFactorValue, setLangFactorValue] = useState(() =>
canonicalLangFactorForMapping(mapping),
);
const [langFactorDirty, setLangFactorDirty] = useState(false);
const canonicalLangFactor = canonicalLangFactorForMapping(mapping);
const canonicalLangFactorKey = `${canonicalLangFactor}|${mapping.updated_at ?? ""}`;
const editBaseCanonicalKeyRef = useRef(canonicalLangFactorKey);
const pending = saveState?.kind === "saving";
const factorPresets = langFactorPresetOptions(
mapping,
langFactorDefaults,
unitObjectType,
);
useEffect(() => {
if (langFactorValue === canonicalLangFactor) {
editBaseCanonicalKeyRef.current = canonicalLangFactorKey;
setLangFactorDirty(false);
return;
}
if (langFactorDirty && pending) {
editBaseCanonicalKeyRef.current = canonicalLangFactorKey;
return;
}
Iif (langFactorDirty && saveState?.kind === "error") return;
if (
langFactorDirty &&
saveState?.kind === "saved" &&
canonicalLangFactorKey === editBaseCanonicalKeyRef.current
) {
return;
}
setLangFactorValue(canonicalLangFactor);
editBaseCanonicalKeyRef.current = canonicalLangFactorKey;
setLangFactorDirty(false);
}, [
canonicalLangFactorKey,
canonicalLangFactor,
langFactorDirty,
langFactorValue,
mapping.id,
pending,
saveState?.kind,
]);
const changeLangFactor = (value: string) => {
editBaseCanonicalKeyRef.current = canonicalLangFactorKey;
setLangFactorValue(value);
setLangFactorDirty(true);
};
const renderAsContents = className?.split(/\s+/).includes("contents");
return (
<div className={cn(renderAsContents ? null : "space-y-3", className)}>
<div className="grid min-w-0 gap-2">
<div className="flex min-h-6 items-center">
<Label htmlFor={`lang-factor-preset-${mapping.id}`}>
Lang factor source
</Label>
</div>
<Select
value={factorPresetValue(mapping, factorPresets, installedBasis)}
disabled={!canEdit || installedBasis}
onValueChange={(value) => {
editBaseCanonicalKeyRef.current = canonicalLangFactorKey;
if (value === GLOBAL_DEFAULT_FACTOR_VALUE) {
changeLangFactor("");
onMappingPatch({
use_study_lang_factor: true,
install_factor: null,
install_factor_profile: "",
});
return;
}
if (value === CUSTOM_FACTOR_VALUE) {
onMappingPatch({ use_study_lang_factor: false });
return;
}
const preset = factorPresets.find((item) => item.value === value);
changeLangFactor(value);
onMappingPatch({
use_study_lang_factor: false,
install_factor: value,
install_factor_profile: preset?.profile,
});
}}
>
<SelectTrigger
id={`lang-factor-preset-${mapping.id}`}
aria-label="Lang factor source"
className="min-w-0 [&>span]:min-w-0"
>
<SelectValue placeholder="Factor preset" />
</SelectTrigger>
<SelectContent>
{installedBasis ? (
<SelectItem value={INSTALLED_COST_NO_FACTOR_VALUE}>
Not applied for installed cost
</SelectItem>
) : (
<>
<SelectItem value={GLOBAL_DEFAULT_FACTOR_VALUE}>
Use global default
</SelectItem>
<SelectGroup>
<SelectLabel>General recommendations</SelectLabel>
{factorPresets
.filter((preset) => preset.group === "general")
.map((preset) => (
<SelectItem key={preset.profile} value={preset.value}>
{preset.label} · {preset.guidance}
</SelectItem>
))}
</SelectGroup>
{factorPresets.some(
(preset) => preset.group === "equipment",
) && (
<>
<SelectSeparator />
<SelectGroup>
<SelectLabel>
Unit/equipment-specific recommendations
</SelectLabel>
{factorPresets
.filter((preset) => preset.group === "equipment")
.map((preset) => (
<SelectItem key={preset.profile} value={preset.value}>
{preset.label} · {preset.guidance}
</SelectItem>
))}
</SelectGroup>
</>
)}
<SelectItem value={CUSTOM_FACTOR_VALUE}>
Custom value
</SelectItem>
</>
)}
</SelectContent>
</Select>
</div>
<div className="grid min-w-0 gap-2">
<div className="flex min-h-6 items-center">
<Label htmlFor={`lang-factor-${mapping.id}`}>Lang factor value</Label>
</div>
<FormattedNumericInput
id={`lang-factor-${mapping.id}`}
aria-label="Lang factor value"
value={langFactorValue}
disabled={!canEdit || installedBasis}
aria-invalid={Boolean(fieldError)}
className={WARNING_INVALID_CLASS}
aria-describedby={
fieldError ? `lang-factor-${mapping.id}-error` : undefined
}
onValueChange={(value) => {
changeLangFactor(value);
onMappingPatch({
use_study_lang_factor: false,
install_factor: nullableString(value),
});
}}
/>
{fieldError && (
<div
id={`lang-factor-${mapping.id}-error`}
className="text-xs text-orange-700 dark:text-orange-300"
role="status"
>
{fieldError}
</div>
)}
</div>
{showInstalledBasisNotice && (
<EconomicsWarningNotice
aria-label="Lang factor double-counting warning"
className={noticeClassName}
>
<span>
Installed-cost basis already includes installation. Lang factors are
not applied to this capital line to avoid double counting.
</span>
{mapping.install_factor && (
<Button
type="button"
size="sm"
variant="outline"
className="mt-2"
disabled={!canEdit}
onClick={() => {
changeLangFactor("");
onMappingPatch({
use_study_lang_factor: false,
install_factor: null,
install_factor_profile: "installed_cost_no_factor",
});
}}
>
Clear factor
</Button>
)}
</EconomicsWarningNotice>
)}
</div>
);
}
function langFactorPresetOptions(
mapping: EquipmentMappingRead,
langFactorDefaults: readonly EconomicsLangFactorDefaultRead[],
unitObjectType: string,
): LangFactorPreset[] {
const generalPresets: LangFactorPreset[] = INSTALLATION_FACTOR_PRESETS.map(
(preset) => ({ ...preset, group: "general" }),
);
const equipmentPresets = langFactorDefaults
.filter((item) => item.review_status === "reviewed")
.filter(
(item) =>
unitDefaultMatchesMapping(item, unitObjectType) ||
equipmentDefaultMatchesMapping(item, mapping),
)
.map((item) => ({
value: normalizeDecimal(item.value),
label: `${normalizeDecimal(item.value)}x`,
profile: item.key,
guidance: item.equipment_subtype
? `${item.label} (${item.equipment_subtype})`
: item.label,
group: "equipment" as const,
}));
return [...generalPresets, ...equipmentPresets];
}
function unitDefaultMatchesMapping(
item: EconomicsLangFactorDefaultRead,
unitObjectType: string,
) {
return (
item.scope === "unit_operation_type" &&
Boolean(unitObjectType) &&
item.unit_operation_type === unitObjectType
);
}
function equipmentDefaultMatchesMapping(
item: EconomicsLangFactorDefaultRead,
mapping: EquipmentMappingRead,
) {
return (
item.scope === "equipment_category" &&
equipmentTargetMatchesMapping(item, mapping)
);
}
function equipmentTargetMatchesMapping(
item: EconomicsLangFactorDefaultRead,
mapping: EquipmentMappingRead,
) {
Iif (!mapping.equipment_category) return false;
if (item.equipment_category !== mapping.equipment_category) return false;
if (!item.equipment_subtype || !mapping.equipment_subtype) return true;
return mapping.equipment_subtype
.toLowerCase()
.startsWith(item.equipment_subtype.toLowerCase());
}
function factorPresetValue(
mapping: EquipmentMappingRead,
presets: readonly LangFactorPreset[],
installedBasis: boolean,
) {
if (installedBasis) {
return INSTALLED_COST_NO_FACTOR_VALUE;
}
if (mapping.use_study_lang_factor !== false) {
return GLOBAL_DEFAULT_FACTOR_VALUE;
}
Iif (!mapping.install_factor) return CUSTOM_FACTOR_VALUE;
const profilePreset = presets.find(
(preset) => preset.profile === mapping.install_factor_profile,
);
Iif (profilePreset) return profilePreset.value;
const matchesKnownDefault =
mapping.lang_factor_default_value != null &&
normalizeDecimal(mapping.install_factor) ===
normalizeDecimal(mapping.lang_factor_default_value);
if (mapping.lang_factor_is_custom && !matchesKnownDefault) {
return CUSTOM_FACTOR_VALUE;
}
return presets.some(
(preset) =>
normalizeDecimal(preset.value) ===
normalizeDecimal(mapping.install_factor ?? ""),
)
? normalizeDecimal(mapping.install_factor)
: CUSTOM_FACTOR_VALUE;
}
function canonicalLangFactorForMapping(mapping: EquipmentMappingRead) {
if (mapping.use_study_lang_factor !== false) {
return (
mapping.effective_lang_factor ?? mapping.lang_factor_default_value ?? ""
);
}
return mapping.install_factor ?? "";
}
function nullableString(value: string) {
const trimmed = value.trim();
return trimmed ? trimmed : null;
}
function normalizeDecimal(value: string) {
const parsed = Number(value);
return Number.isFinite(parsed) ? String(parsed) : value;
}
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