src/slack/monitor/policy.ts

export function isSlackChannelAllowedByPolicy(params: {
  groupPolicy: "open" | "disabled" | "allowlist";
  channelAllowlistConfigured: boolean;
  channelAllowed: boolean;
}): boolean {
  const { groupPolicy, channelAllowlistConfigured, channelAllowed } = params;
  if (groupPolicy === "disabled") {
    return false;
  }
  if (groupPolicy === "open") {
    return true;
  }
  if (!channelAllowlistConfigured) {
    return false;
  }
  return channelAllowed;
}