const LINEAR_ISSUE_CONTEXT_TIMEOUT_MS = 120_000
const REMOTE_TIMEOUT_BOOLEAN_FLAGS = new Set([
  'all',
  'attachments',
  'children',
  'comments',
  'current',
  'full',
  'help',
  'inject',
  'json',
  'relations',
  'unread',
  'wait'
])

export function remoteCliRequestTimeoutMs(params: Record<string, unknown>): number | undefined {
  return isLinearCliRequest(params) ? LINEAR_ISSUE_CONTEXT_TIMEOUT_MS : undefined
}

function isLinearCliRequest(params: Record<string, unknown>): boolean {
  const argv = params.argv
  if (!Array.isArray(argv) || !argv.every((part) => typeof part === 'string')) {
    return false
  }
  const commandPath = parseRemoteCommandPath(argv)
  return commandPath.some(
    (part, index) =>
      part === 'linear' && isExtendedLinearCliCommand(commandPath.slice(index + 1, index + 4))
  )
}

function isExtendedLinearCliCommand(command: string[]): boolean {
  const [first, second] = command
  if (first === 'issue' || first === 'search' || first === 'attach' || first === 'create') {
    return true
  }
  if (first === 'status' && second === 'set') {
    return true
  }
  return first === 'comment' && second === 'add'
}

function parseRemoteCommandPath(argv: string[]): string[] {
  const commandPath: string[] = []
  for (let index = 0; index < argv.length; index += 1) {
    const token = argv[index]
    if (!token.startsWith('--')) {
      commandPath.push(token)
      continue
    }

    const assignment = token.slice(2)
    if (assignment.includes('=')) {
      continue
    }

    const next = argv[index + 1]
    if (!REMOTE_TIMEOUT_BOOLEAN_FLAGS.has(assignment) && next && !next.startsWith('--')) {
      index += 1
    }
  }
  return commandPath
}