eve/dist/src/channel/cross-channel-receive.js

Filesystem-first framework for durable backend AI agents that run anywhere.

import{createChannelOperations}from"#channel/channel-operations.js";import{isCompiledChannel}from"#channel/compiled-channel.js";function toCrossChannelTargets(e){return e.flatMap(e=>e.definition===void 0?[]:[{name:e.name,definition:e.definition,receive:e.receive,adapter:e.adapter,turnPolicy:e.turnPolicy}])}function createCrossChannelToFn(e,t){return(n,r)=>{let i=resolveTargetByReference(n,t);return{async send(t,n){return await invokeChannelReceive({runtime:e,target:i,input:{message:t,target:r,auth:n.auth},turnPolicy:n.turnPolicy,describeMissingReceive:()=>`ctx.to(): channel "${i.name}" does not implement receive(). Declare a receive hook on the channel to accept cross-channel sessions.`,describeMissingAdapter:()=>`ctx.to(): channel "${i.name}" has no adapter — cannot build ctx.from().`})}}}}async function invokeChannelReceive(e){if(!e.target.receive)throw Error(e.describeMissingReceive());if(!e.target.adapter)throw Error(e.describeMissingAdapter());let t=createChannelOperations({adapter:e.target.adapter,channelName:e.target.name,runtime:e.runtime,turnPolicy:e.turnPolicy??e.target.turnPolicy});return await e.target.receive(e.input,t)}function resolveTargetByReference(e,t){for(let n of t)if(n.definition===e)return n;let n=resolveTargetByRouteFingerprint(e,t);if(n!==null)return n;throw Error(`ctx.to(): the channel passed as the first argument is not registered in this agent's channels/. Import the channel module's default export from agent/channels/<name>.ts and pass that value.`)}function resolveTargetByRouteFingerprint(e,t){if(!isCompiledChannel(e))return null;let n=createRouteFingerprint(e);if(n===null)return null;let r=new Map;for(let e of t)createRouteFingerprint(e.definition)===n&&r.set(e.name,e);if(r.size===1)return[...r.values()][0];if(r.size>1)throw Error(`ctx.to(): the channel passed as the first argument matches multiple registered channels by route shape. Import a channel with a unique route set from agent/channels/<name>.ts before passing it to ctx.to().`);return null}function createRouteFingerprint(e){return e.routes.length===0?null:e.routes.map(e=>`${e.method.toUpperCase()} ${e.path}`).sort().join(`
`)}export{createCrossChannelToFn,invokeChannelReceive,toCrossChannelTargets};