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import { RotateCcw } from 'lucide-react';
/**
* Settings modal for the user-tunable repetition / failsafe limits.
*
* The schema (defaults, bounds, descriptions, group assignments) is
* fetched from GET /api/chat/limits/defaults so the entire UI is
* server-driven: adding a knob in `services.models.ConversationLimits`
* makes it appear here automatically. The user's overrides are
* persisted to localStorage and sent on the next /chat/start, where
* the backend re-clamps them to the declared bounds.
*
* "Effective" values shown to the user are: override (if set) ->
* server default. Values are pre-clamped client-side too so the
* stepper UI stays in range.
*/
export default function ConversationLimitsModal({
isOpen,
schema,
overrides,
onClose,
onChange,
onResetAll,
}) {
const [draft, setDraft] = useState(() => ({ ...(overrides || {}) }));
// Reset draft whenever the modal is reopened so we don't leak edits
// from a previous open.
React.useEffect(() => {
if (isOpen) setDraft({ ...(overrides || {}) });
}, [isOpen, overrides]);
const grouped = useMemo(() => groupFields(schema), [schema]);
if (!isOpen) return null;
if (!schema) {
return (
<div className="ccai-credentials-overlay">
<div className="ccai-credentials-card">
<div className="ccai-credentials-header">
<div>
<h2>Conversation limits</h2>
</div>
<div className="ccai-tab-spacer" />
<button className="modal-close" onClick={onClose}>×</button>
</div>
<div className="ccai-credentials-body">
<div className="ccai-credentials-empty">Loading limits...</div>
</div>
</div>
</div>
);
}
const handleChange = (field, value) => {
const next = { ...draft, [field]: value };
setDraft(next);
onChange?.(next);
};
const handleResetField = (field) => {
const next = { ...draft };
delete next[field];
setDraft(next);
onChange?.(next);
};
const handleResetAll = () => {
setDraft({});
onResetAll?.();
};
return (
<div className="ccai-credentials-overlay">
<div className="ccai-credentials-card">
<div className="ccai-credentials-header">
<div>
<h2>Conversation limits</h2>
<div className="ccai-credentials-subtitle">
These knobs control how long each phase of the discussion
runs and when the conversation pauses for a Continue
confirmation. Changes apply to the next chat you start.
</div>
</div>
<div className="ccai-tab-spacer" />
<button
className="btn-sm btn-outline"
onClick={handleResetAll}
title="Restore every knob to the server default"
>
<RotateCcw size={14} style={{ marginRight: 4 }} />
Reset all
</button>
<button className="modal-close" onClick={onClose}>×</button>
</div>
<div className="ccai-credentials-body">
{grouped.map(({ group, fields }) => (
<div key={group} className="ccai-limits-group">
<div className="ccai-limits-group-title">{group}</div>
{fields.map((f) => (
<LimitRow
key={f.field}
field={f.field}
label={f.label}
help={f.help}
defaultValue={f.defaultValue}
min={f.min}
max={f.max}
override={draft[f.field]}
onChange={(v) => handleChange(f.field, v)}
onResetField={() => handleResetField(f.field)}
/>
))}
</div>
))}
</div>
</div>
</div>
);
}
function LimitRow({
field,
label,
help,
defaultValue,
min,
max,
override,
onChange,
onResetField,
}) {
const isOverride = override !== undefined && override !== null;
const effective = isOverride ? override : defaultValue;
const setClamped = (raw) => {
if (raw === '' || raw === null || raw === undefined) {
// Empty input = revert to default for this field.
onResetField();
return;
}
let n = parseInt(raw, 10);
if (Number.isNaN(n)) return;
if (n < min) n = min;
if (n > max) n = max;
onChange(n);
};
return (
<div className="ccai-limit-row">
<div className="ccai-limit-row-head">
<label className="ccai-limit-label" htmlFor={`limit-${field}`}>
{label}
</label>
<div className="ccai-limit-stepper">
<input
id={`limit-${field}`}
type="number"
min={min}
max={max}
step={1}
value={effective}
onChange={(e) => setClamped(e.target.value)}
className="ccai-limit-input"
/>
<span className="ccai-limit-range">
({min}-{max}, default {defaultValue})
</span>
{isOverride && (
<button
className="ccai-limit-reset"
onClick={onResetField}
title="Reset this field to the default"
>
reset
</button>
)}
</div>
</div>
<div className="ccai-limit-help">{help}</div>
</div>
);
}
/**
* Convert the flat `descriptions` map into [{group, fields[]}] in
* the order the groups first appear, then the order each field is
* declared in `bounds` (which mirrors the dataclass field order).
*/
function groupFields(schema) {
if (!schema) return [];
const { defaults, bounds, descriptions } = schema;
const orderedFields = Object.keys(bounds);
const seen = new Map();
for (const field of orderedFields) {
const desc = descriptions[field] || {};
const group = desc.group || 'Other';
if (!seen.has(group)) seen.set(group, []);
seen.get(group).push({
field,
label: desc.label || field,
help: desc.help || '',
defaultValue: defaults[field],
min: bounds[field].min,
max: bounds[field].max,
});
}
return Array.from(seen.entries()).map(([group, fields]) => ({ group, fields }));
}
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