Swadhin Biswas feat: implement mervelas cli engine, built-in tools, and reactive UI · 4/3/2026
0358986
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import chalk from 'chalk'
import * as React from 'react'
import { useMemo } from 'react'
import type { LocalJSXCommandContext } from '../../commands.js'
import { ConfigurableShortcutHint } from '../../components/ConfigurableShortcutHint.js'
import { Select } from '../../components/CustomSelect/select.js'
import { Dialog } from '../../components/design-system/Dialog.js'
import { Box, Text } from '../../ink.js'
import type { LocalJSXCommandOnDone } from '../../types/command.js'
import { getConfiguredAuthProvider } from '../../utils/auth.js'
import {
AUTH_PROVIDER_CHOICES,
type AuthProviderChoice,
getAuthProviderDescription,
getProviderSetupHint,
getProviderStatusText,
hasConfiguredCredentialsForProvider,
isAuthProviderChoice,
renderAuthProviderName,
setPreferredAuthProvider,
} from '../../utils/authProviders.js'
import { saveGlobalConfig } from '../../utils/config.js'
const HELP_ARGS = ['help', '-h', '--help']
function applyProviderPreference(
provider: AuthProviderChoice,
context: LocalJSXCommandContext,
onDone: LocalJSXCommandOnDone,
): void {
saveGlobalConfig(current => setPreferredAuthProvider(current, provider))
context.onChangeAPIKey()
context.setAppState(prev => ({
...prev,
authVersion: prev.authVersion + 1,
}))
let message = `Set provider to ${chalk.bold(renderAuthProviderName(provider))}`
if (!hasConfiguredCredentialsForProvider(provider)) {
message += `\n${getProviderSetupHint(provider)}`
}
// clear the mainLoopModel from AppState so it falls back to the default of the newly selected provider
context.setAppState(prev => ({
...prev,
mainLoopModel: null,
mainLoopModelForSession: null,
}))
onDone(message)
}
function ProviderPicker({
context,
onDone,
}: {
context: LocalJSXCommandContext
onDone: LocalJSXCommandOnDone
}): React.ReactNode {
const configuredProvider = getConfiguredAuthProvider()
const providerOptions = useMemo(
() =>
AUTH_PROVIDER_CHOICES.map(provider => ({
label: (
<Text>
{renderAuthProviderName(provider)}{' '}
<Text dimColor>{getAuthProviderDescription(provider)}</Text>
{'\n'}
</Text>
),
value: provider,
})),
[],
)
return (
<Dialog
title="Provider"
onCancel={() =>
onDone(
`Kept provider as ${chalk.bold(renderAuthProviderName(configuredProvider))}`,
{ display: 'system' },
)
}
color="permission"
inputGuide={exitState =>
exitState.pending ? (
<Text>Press {exitState.keyName} again to exit</Text>
) : (
<ConfigurableShortcutHint
action="confirm:no"
context="Confirmation"
fallback="Esc"
description="cancel"
/>
)
}
>
<Box flexDirection="column" gap={1}>
<Text bold>{getProviderStatusText()}</Text>
<Text dimColor>
Provider selection is separate from credential setup. Pick a provider
first, then connect it with /login if needed.
</Text>
<Text>Select provider:</Text>
<Box>
<Select
options={providerOptions}
defaultFocusValue={configuredProvider}
onChange={value =>
applyProviderPreference(
value as AuthProviderChoice,
context,
onDone,
)
}
/>
</Box>
</Box>
</Dialog>
)
}
export async function call(
onDone: LocalJSXCommandOnDone,
context: LocalJSXCommandContext,
args?: string,
): Promise<React.ReactNode | undefined> {
const normalized = args?.trim().toLowerCase() ?? ''
if (HELP_ARGS.includes(normalized)) {
onDone(
`Usage: /provider [anthropic|openai|openrouter|opencode|nvidia]\n\nRun /provider with no argument to open an interactive picker.\nRun /config provider to jump straight into the same picker.`,
)
return
}
if (!normalized) {
return <ProviderPicker context={context} onDone={onDone} />
}
if (normalized === 'current' || normalized === 'status') {
onDone(getProviderStatusText())
return
}
if (!isAuthProviderChoice(normalized)) {
onDone(
`Invalid provider: ${args}. Valid options are: ${AUTH_PROVIDER_CHOICES.join(', ')}`,
{ display: 'system' },
)
return
}
applyProviderPreference(normalized, context, onDone)
}