export interface SlackConfig {
token: string;
defaultChannel?: string;
allowedChannels?: string[];
}
export function getConfig(): SlackConfig {
const token = process.env.SLACK_BOT_TOKEN;
if (!token) {
throw new Error(
'SLACK_BOT_TOKEN environment variable is required. ' +
'Create a Slack app and add a Bot Token with the necessary scopes.'
);
}
// Parse SLACK_CHANNELS as comma-separated list of channel names/IDs
const channelsEnv = process.env.SLACK_CHANNELS;
const allowedChannels = channelsEnv
? channelsEnv.split(',').map((c) => c.trim()).filter(Boolean)
: undefined;
return {
token,
defaultChannel: process.env.SLACK_DEFAULT_CHANNEL,
allowedChannels,
};
}
export function validateChannel(channel: string | undefined): string | undefined {
const config = getConfig();
// If no allowed channels configured, allow all
if (!config.allowedChannels || config.allowedChannels.length === 0) {
return channel;
}
// If no channel specified, use first allowed channel
if (!channel) {
return config.allowedChannels[0];
}
// Check if channel is in allowed list (by name or ID)
const isAllowed = config.allowedChannels.some(
(allowed) => allowed === channel || allowed === `#${channel}` || `#${allowed}` === channel
);
if (!isAllowed) {
throw new Error(
`Channel "${channel}" is not in the allowed list. ` +
`Allowed channels: ${config.allowedChannels.join(', ')}`
);
}
return channel;
}
export function getAllowedChannelsForSearch(): string[] | undefined {
const config = getConfig();
return config.allowedChannels;
}
