1  import type { ProviderThinkingLevel } from '@/server/providers/types'
 2  import type { SlashCommand } from './ast'
 3  import type { ParsedSlashInput } from './lexer'
 4  
 5  export function parseThinkingSlashCommand(input: ParsedSlashInput): SlashCommand | null {
 6    if (input.name !== 'think' && input.name !== 'thinking') return null
 7  
 8    const normalized = input.rest.toLowerCase()
 9    if (!input.rest || normalized === 'show' || normalized === 'current') {
10      return { kind: 'think-show' }
11    }
12    if (normalized === 'clear' || normalized === 'reset' || normalized === 'default') {
13      return { kind: 'think-set', thinkingLevel: null }
14    }
15    const thinkingLevel = parseThinkingLevel(input.rest)
16    return thinkingLevel ? { kind: 'think-set', thinkingLevel } : { kind: 'think-show' }
17  }
18  
19  export function parseThinkingLevel(value: string): ProviderThinkingLevel | null {
20    const normalized = value.trim().toLowerCase()
21    if (!normalized) return null
22    if (
23      normalized === 'off' ||
24      normalized === 'minimal' ||
25      normalized === 'low' ||
26      normalized === 'medium' ||
27      normalized === 'high'
28    ) {
29      return normalized
30    }
31    return null
32  }