eve/dist/src/public/channels/discord/discordChannel.js

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

import{createLogger,logError}from"#internal/logging.js";import{parseJsonObject}from"#shared/json.js";import"#public/channels/discord/verify.js";import{callDiscordApi,createDiscordFollowupMessage,discordContinuationToken,editDiscordOriginalResponse,sendDiscordChannelMessage,splitDiscordMessageContent,triggerDiscordTypingIndicator}from"#public/channels/discord/api.js";import{buildFreeformModalResponse,deriveComponentInputResponses,deriveModalInputResponses,isDiscordFreeformComponent}from"#public/channels/discord/hitl.js";import{defaultEvents,defaultOnCommand}from"#public/channels/discord/defaults.js";import{DISCORD_INTERACTION_RESPONSE_TYPE,DISCORD_INTERACTION_TYPE,commandInteractionMessage,formatDiscordContextBlock,parseDiscordInteraction}from"#public/channels/discord/inbound.js";import{discordDeferredJson,discordJson,discordJsonBody,readMessageContent}from"#public/channels/discord/responses.js";import{verifyDiscordInbound}from"#public/channels/discord/verifyInbound.js";import{POST,defineChannel}from"#public/definitions/defineChannel.js";const log=createLogger(`discord.channel`);function discordChannel(e={}){let t=e.onCommand??defaultOnCommand,r={...defaultEvents,...e.events};return defineChannel({kindHint:`discord`,state:initialDiscordState(),metadata:e=>({channelId:e.channelId,guildId:e.guildId}),context(t,n){return rebuildDiscordContext(t,n,e)},routes:[POST(e.route??`/eve/v1/discord`,async(r,{send:i,waitUntil:a})=>{let o=await verifyDiscordInbound(r,e.credentials);if(o===null)return new Response(`unauthorized`,{status:401});let s;try{s=parseJsonObject(JSON.parse(o))}catch(e){return log.warn(`inbound Discord body is not valid JSON`,{error:e}),discordJson({content:`invalid request`,ephemeral:!0})}if(s.type===DISCORD_INTERACTION_TYPE.PING)return discordJson({type:DISCORD_INTERACTION_RESPONSE_TYPE.PONG});let c=parseDiscordInteraction(s);return c===null?discordJson({content:`Unsupported Discord interaction.`,ephemeral:!0}):handleInteraction({config:e,interaction:c,onCommand:t,send:i,waitUntil:a})})],async receive(t,{send:n}){let r=t.target,i=readString(r.channelId);if(!i)throw Error(`discordChannel().receive requires target.channelId.`);let o=readString(r.conversationId),s=r.initialMessage;if(s!==void 0&&o!==void 0)throw Error("discordChannel().receive: `conversationId` and `initialMessage` are mutually exclusive.");let c=o??``,l=o!==void 0;if(s!==void 0){let t=await buildDiscordHandle({config:e,state:{...initialDiscordState(),channelId:i}}).sendChannelMessage(s);c=t.id,l=t.id.length>0}return n(t.message,{auth:t.auth,continuationToken:discordContinuationToken(i,c),state:{applicationId:null,channelId:i,conversationId:c||null,guildId:null,hasMessageAnchor:l,initialResponseSent:!0,interactionToken:null}})},events:r})}function rebuildDiscordContext(e,t,n){return{discord:buildDiscordHandle({config:n,session:t,state:e}),state:e}}function buildDiscordHandle(e){let n=e.config.api,c=e.state,u=mergeCredentials(e.config.credentials,c);function anchor(t){!t.id||c.hasMessageAnchor||(c.conversationId=t.id,c.hasMessageAnchor=!0,c.channelId&&e.session?.setContinuationToken(discordContinuationToken(c.channelId,t.id)))}async function sendViaChannel(e){let t=c.channelId??``;if(!t)throw Error(`discordChannel: missing channel id for outbound message.`);let r=await sendDiscordChannelMessage({apiBaseUrl:n?.apiBaseUrl,body:normalizePostInput(e),credentials:u,fetch:n?.fetch,channelId:t});return anchor(r),r}async function editOriginal(e){let t=c.interactionToken??``;if(!t)throw Error(`discordChannel: missing interaction token for original response edit.`);let r=await editDiscordOriginalResponse({apiBaseUrl:n?.apiBaseUrl,body:normalizePostInput(e),credentials:u,fetch:n?.fetch,interactionToken:t});return c.initialResponseSent=!0,anchor(r),r}async function followup(e){let t=c.interactionToken??``;if(!t)throw Error(`discordChannel: missing interaction token for followup message.`);let r=await createDiscordFollowupMessage({apiBaseUrl:n?.apiBaseUrl,body:normalizePostInput(e),credentials:u,fetch:n?.fetch,interactionToken:t});return anchor(r),r}async function startTyping(){let e=c.channelId??``;if(e)try{await triggerDiscordTypingIndicator({apiBaseUrl:n?.apiBaseUrl,credentials:u,fetch:n?.fetch,channelId:e})}catch(n){logError(log,`Discord typing indicator failed — swallowed`,n,{channelId:e})}}return{applicationId:c.applicationId??void 0,channelId:c.channelId??``,conversationId:c.conversationId??``,guildId:c.guildId??void 0,interactionToken:c.interactionToken??void 0,request(e,t,i){return callDiscordApi({apiBaseUrl:n?.apiBaseUrl,body:t,botToken:i?.botAuth===!0?u.botToken:void 0,fetch:n?.fetch,method:i?.method,path:e})},async post(e){let t=expandPostBodies(normalizePostInput(e)),n;for(let e of t){let t=await postOne({body:e,editOriginal,followup,sendViaChannel,state:c});n===void 0&&(n=t)}return n??{id:``,raw:null}},editOriginalResponse:editOriginal,followup,sendChannelMessage:sendViaChannel,startTyping}}async function postOne(e){if(e.state.interactionToken&&e.state.applicationId)try{return e.state.initialResponseSent?await e.followup(e.body):await e.editOriginal(e.body)}catch(e){log.warn(`Discord interaction-token delivery failed, falling back to channel message`,{error:e})}return e.sendViaChannel(e.body)}async function handleInteraction(e){return e.interaction.type===DISCORD_INTERACTION_TYPE.APPLICATION_COMMAND?handleCommandInteraction({config:e.config,interaction:e.interaction,onCommand:e.onCommand,send:e.send,waitUntil:e.waitUntil}):e.interaction.type===DISCORD_INTERACTION_TYPE.MESSAGE_COMPONENT?handleComponentInteraction({interaction:e.interaction,send:e.send,waitUntil:e.waitUntil}):handleModalSubmitInteraction({interaction:e.interaction,send:e.send,waitUntil:e.waitUntil})}async function handleCommandInteraction(e){let t=stateFromInteraction(e.interaction,{conversationId:e.interaction.id,hasMessageAnchor:!1,initialResponseSent:!1}),n={discord:buildDiscordHandle({config:e.config,state:t})},r;try{r=await e.onCommand(n,e.interaction)}catch(e){return log.error(`command handler failed`,{error:e}),discordJson({content:`The Discord command handler failed.`,ephemeral:!0})}return r==null?discordJson({content:`Command ignored.`,ephemeral:!0}):(e.waitUntil(dispatchCommand({interaction:e.interaction,result:r,send:e.send,state:t})),discordDeferredJson(r.ephemeral===!0))}function handleComponentInteraction(e){if(isDiscordFreeformComponent(e.interaction.customId)){let t=readMessageContent(e.interaction.raw);return discordJsonBody(buildFreeformModalResponse({customId:e.interaction.customId,prompt:t}))}let t=deriveComponentInputResponses(e.interaction);return t.length>0&&e.waitUntil(dispatchInputResponses({conversationId:e.interaction.messageId,inputResponses:t,interaction:e.interaction,send:e.send})),discordJsonBody({type:DISCORD_INTERACTION_RESPONSE_TYPE.DEFERRED_UPDATE_MESSAGE})}function handleModalSubmitInteraction(e){let t=deriveModalInputResponses(e.interaction);return t.length>0&&e.waitUntil(dispatchInputResponses({conversationId:e.interaction.messageId??e.interaction.id,inputResponses:t,interaction:e.interaction,send:e.send})),discordJson({content:`Answer received.`,ephemeral:!0})}async function dispatchCommand(e){let t=commandInteractionMessage(e.interaction),n=formatDiscordContextBlock({channelId:e.interaction.channelId,commandName:e.interaction.commandName,guildId:e.interaction.guildId,interactionId:e.interaction.id,userId:e.interaction.user.id,username:e.interaction.user.username}),r=e.result.context??[];try{await e.send({message:t,context:[n,...r]},{auth:e.result.auth,continuationToken:discordContinuationToken(e.interaction.channelId,e.interaction.id),state:e.state})}catch(e){log.error(`command delivery failed`,{error:e})}}async function dispatchInputResponses(e){try{await e.send({inputResponses:e.inputResponses},{auth:null,continuationToken:discordContinuationToken(e.interaction.channelId,e.conversationId),state:stateFromInteraction(e.interaction,{conversationId:e.conversationId,hasMessageAnchor:!0,initialResponseSent:!0})})}catch(e){log.error(`interaction response delivery failed`,{error:e})}}function stateFromInteraction(e,t){return{applicationId:e.applicationId,channelId:e.channelId,conversationId:t.conversationId,guildId:e.guildId??null,hasMessageAnchor:t.hasMessageAnchor,initialResponseSent:t.initialResponseSent,interactionToken:e.token}}function initialDiscordState(){return{applicationId:null,channelId:null,conversationId:null,guildId:null,hasMessageAnchor:!1,initialResponseSent:!1,interactionToken:null}}function mergeCredentials(e,t){return{applicationId:t.applicationId??e?.applicationId,botToken:e?.botToken,publicKey:e?.publicKey,webhookVerifier:e?.webhookVerifier}}function normalizePostInput(e){return typeof e==`string`?{content:e}:e}function expandPostBodies(e){return typeof e.content==`string`?splitDiscordMessageContent(e.content).map((t,n)=>n===0?{...e,content:t}:{allowed_mentions:e.allowed_mentions,content:t}):[e]}function readString(e){return typeof e==`string`&&e.length>0?e:void 0}export{discordChannel};