export function dispatchMessage(redisCnx, msg, chan) {
    const observer = redisCnx.config.observer
    if(!observer?.observerActionsChannel) return

    const actionsChan = redisCnx.fullChan(observer.observerActionsChannel)
    if(chan != actionsChan) return

    const action = msg.action
    if(!action || typeof(action) !== 'string') {
        console.warn(`[${redisCnx.redisId}] Ignoring message without action on ${chan}`)
        return
    }

    const handler = redisCnx['action_'+action]
    if(typeof(handler) != 'function') {
        if(redisCnx.debug) console.warn(`[${redisCnx.redisId}] Unknown action ${action} on ${chan}`)
        return
    }

    const payload = ('payload' in msg) ? msg.payload : null
    const reqid = ('reqid' in msg) ? msg.reqid.substr(0, 50) : null
    const sender = msg.sender || null
    const roles = Array.isArray(msg.roles) ? msg.roles : ['*']

    if(redisCnx.debug) console.log(`[${redisCnx.redisId}] Dispatching action ${action} from ${sender}`)
    handler.call(redisCnx, action, payload, reqid, sender, roles)
}