opencode/packages/core/src/session/generate-node.ts

73 lines
3 KiB
TypeScript

export * as SessionGenerateNode from "./generate-node"
import { LLM, LLMClient, Message, SystemPart } from "@opencode-ai/ai"
import { Effect, Layer } from "effect"
import { Database } from "../database/database"
import { makeLocationNode } from "@opencode-ai/util/effect/app-node"
import { llmClient } from "@opencode-ai/util/effect/app-node-platform"
import { PluginHooks } from "../plugin/hooks"
import { SessionContext } from "./context"
import { SessionGenerate } from "./generate"
import { SessionHistory } from "./history"
import { SessionModelHeaders } from "./model-headers"
import { SessionRunnerModel } from "./runner/model"
import PROMPT_DEFAULT from "./runner/prompt/base.txt"
import { toLLMMessages } from "./runner/to-llm-message"
export const layer = (options?: SessionModelHeaders.Options) => Layer.effect(
SessionGenerate.Service,
Effect.gen(function* () {
const context = yield* SessionContext.Service
const database = yield* Database.Service
const hooks = yield* PluginHooks.Service
const llm = yield* LLMClient.Service
const models = yield* SessionRunnerModel.Service
return SessionGenerate.Service.of({
generate: Effect.fn("SessionGenerate.generate")(function* (input) {
const selection = yield* context.select(input.sessionID)
const model = yield* models.resolve(selection.session)
const history = yield* SessionHistory.preview(database.db, selection.session.id, selection.instructions)
const providerMetadataKey = model.model.route.providerMetadataKey ?? model.model.provider
const promptCacheKey = /^ses_[0-9a-f]{64}$/.test(selection.session.id)
? selection.session.id.slice(4)
: selection.session.id
const contextEvent = yield* hooks.trigger("session", "context", {
sessionID: selection.session.id,
agent: selection.agent.id,
model: model.ref,
system: [selection.agent.info.system ? selection.agent.info.system : PROMPT_DEFAULT, history.initial]
.filter((part) => part.length > 0)
.map(SystemPart.make),
messages: [
...toLLMMessages(history.messages, model.ref, providerMetadataKey),
...(history.instructionUpdate ? [Message.system(history.instructionUpdate)] : []),
Message.user(input.prompt),
],
tools: {},
})
return (yield* llm.generate(
LLM.request({
model: model.model,
http: { headers: SessionModelHeaders.make(selection.session, options) },
providerOptions: { openai: { promptCacheKey } },
system: contextEvent.system,
messages: contextEvent.messages,
tools: [],
toolChoice: "none",
}),
)).text
}),
})
}),
)
export function configured(options?: SessionModelHeaders.Options) {
return makeLocationNode({
service: SessionGenerate.Service,
layer: layer(options),
deps: [SessionContext.node, Database.node, PluginHooks.node, SessionRunnerModel.node, llmClient],
})
}
export const node = configured()