Swadhin Biswas feat: implement mervelas cli engine, built-in tools, and reactive UI · 4/3/2026
0358986
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import { useState } from 'react'
import {
type AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
logEvent,
} from '../../services/analytics/index.js'
import { sanitizeToolNameForAnalytics } from '../../services/analytics/metadata.js'
import { useSetAppState } from '../../state/AppState.js'
import type { ToolUseConfirm } from './PermissionRequest.js'
import { logUnaryPermissionEvent } from './utils.js'
/**
* Shared feedback-mode state + handlers for shell permission dialogs (Bash,
* PowerShell). Encapsulates the yes/no input-mode toggle, feedback text state,
* focus tracking, and reject handling.
*/
export function useShellPermissionFeedback({
toolUseConfirm,
onDone,
onReject,
explainerVisible,
}: {
toolUseConfirm: ToolUseConfirm
onDone: () => void
onReject: () => void
explainerVisible: boolean
}): {
yesInputMode: boolean
noInputMode: boolean
yesFeedbackModeEntered: boolean
noFeedbackModeEntered: boolean
acceptFeedback: string
rejectFeedback: string
setAcceptFeedback: (v: string) => void
setRejectFeedback: (v: string) => void
focusedOption: string
handleInputModeToggle: (option: string) => void
handleReject: (feedback?: string) => void
handleFocus: (value: string) => void
} {
const setAppState = useSetAppState()
const [rejectFeedback, setRejectFeedback] = useState('')
const [acceptFeedback, setAcceptFeedback] = useState('')
const [yesInputMode, setYesInputMode] = useState(false)
const [noInputMode, setNoInputMode] = useState(false)
const [focusedOption, setFocusedOption] = useState('yes')
// Track whether user ever entered feedback mode (persists after collapse)
const [yesFeedbackModeEntered, setYesFeedbackModeEntered] = useState(false)
const [noFeedbackModeEntered, setNoFeedbackModeEntered] = useState(false)
// Handle Tab key toggling input mode for Yes/No options
function handleInputModeToggle(option: string) {
// Notify that user is interacting with the dialog
toolUseConfirm.onUserInteraction()
const analyticsProps = {
toolName: sanitizeToolNameForAnalytics(
toolUseConfirm.tool.name,
) as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS,
isMcp: toolUseConfirm.tool.isMcp ?? false,
}
if (option === 'yes') {
if (yesInputMode) {
setYesInputMode(false)
logEvent('tengu_accept_feedback_mode_collapsed', analyticsProps)
} else {
setYesInputMode(true)
setYesFeedbackModeEntered(true)
logEvent('tengu_accept_feedback_mode_entered', analyticsProps)
}
} else if (option === 'no') {
if (noInputMode) {
setNoInputMode(false)
logEvent('tengu_reject_feedback_mode_collapsed', analyticsProps)
} else {
setNoInputMode(true)
setNoFeedbackModeEntered(true)
logEvent('tengu_reject_feedback_mode_entered', analyticsProps)
}
}
}
function handleReject(feedback?: string) {
const trimmedFeedback = feedback?.trim()
const hasFeedback = !!trimmedFeedback
// Log escape if no feedback was provided (user pressed ESC)
if (!hasFeedback) {
logEvent('tengu_permission_request_escape', {
explainer_visible: explainerVisible,
})
// Increment escape count for attribution tracking
setAppState(prev => ({
...prev,
attribution: {
...prev.attribution,
escapeCount: prev.attribution.escapeCount + 1,
},
}))
}
logUnaryPermissionEvent(
'tool_use_single',
toolUseConfirm,
'reject',
hasFeedback,
)
if (trimmedFeedback) {
toolUseConfirm.onReject(trimmedFeedback)
} else {
toolUseConfirm.onReject()
}
onReject()
onDone()
}
function handleFocus(value: string) {
// Notify that user is interacting with the dialog (only if focus changed)
// This prevents triggering on the initial mount/render
if (value !== focusedOption) {
toolUseConfirm.onUserInteraction()
}
// Reset input mode when navigating away, but only if no text typed
if (value !== 'yes' && yesInputMode && !acceptFeedback.trim()) {
setYesInputMode(false)
}
if (value !== 'no' && noInputMode && !rejectFeedback.trim()) {
setNoInputMode(false)
}
setFocusedOption(value)
}
return {
yesInputMode,
noInputMode,
yesFeedbackModeEntered,
noFeedbackModeEntered,
acceptFeedback,
rejectFeedback,
setAcceptFeedback,
setRejectFeedback,
focusedOption,
handleInputModeToggle,
handleReject,
handleFocus,
}
}