opencode/packages/core/src/session/runner/model.ts

89 lines
3.3 KiB
TypeScript

export * as SessionRunnerModel from "./model"
import { makeLocationNode } from "@opencode-ai/util/effect/app-node"
import { Model } from "@opencode-ai/ai"
import { Context, Effect, Layer, Schema } from "effect"
import { Catalog } from "../../catalog"
import { ModelResolver } from "../../model-resolver"
import { ModelV2 } from "../../model"
import { ProviderV2 } from "../../provider"
import { SessionSchema } from "../schema"
export class ModelNotSelectedError extends Schema.TaggedErrorClass<ModelNotSelectedError>()(
"SessionRunnerModel.ModelNotSelectedError",
{ sessionID: SessionSchema.ID },
) {
override get message() {
return `No model is available for session ${this.sessionID}`
}
}
export class ModelUnavailableError extends Schema.TaggedErrorClass<ModelUnavailableError>()(
"SessionRunnerModel.ModelUnavailableError",
{ providerID: ProviderV2.ID, modelID: ModelV2.ID },
) {
override get message() {
return `Model unavailable: ${this.providerID}/${this.modelID}`
}
}
export const VariantUnavailableError = ModelResolver.VariantUnavailableError
export type VariantUnavailableError = ModelResolver.VariantUnavailableError
export const UnsupportedPackageError = ModelResolver.UnsupportedPackageError
export type UnsupportedPackageError = ModelResolver.UnsupportedPackageError
export type Error = ModelNotSelectedError | ModelUnavailableError | ModelResolver.Error
export type Resolved = ModelResolver.Resolved
export interface Interface {
readonly resolve: (session: SessionSchema.Info) => Effect.Effect<Resolved, Error>
}
export class Service extends Context.Service<Service, Interface>()("@opencode/v2/SessionRunnerModel") {}
/** Builds a Resolved whose catalog identity mirrors the route model. Test or embedding seam. */
export const resolved = (
model: Model,
options: {
readonly capabilities: ModelV2.Capabilities
readonly variant?: ModelV2.VariantID
readonly cost: ModelV2.Info["cost"]
},
): Resolved => ({
model,
ref: ModelV2.Ref.make({
id: ModelV2.ID.make(model.id),
providerID: ProviderV2.ID.make(model.provider),
...(options.variant === undefined ? {} : { variant: options.variant }),
}),
capabilities: options.capabilities,
cost: options.cost,
})
const layer = Layer.effect(
Service,
Effect.gen(function* () {
const catalog = yield* Catalog.Service
const resolver = yield* ModelResolver.Service
return Service.of({
resolve: Effect.fn("SessionRunnerModel.resolve")(function* (session) {
// Location plugins populate and filter the catalog asynchronously during layer startup.
if (!session.model) {
const resolved = yield* resolver.resolve()
if (resolved) return resolved
return yield* new ModelNotSelectedError({ sessionID: session.id })
}
const selected = (yield* catalog.model.available()).find(
(model) => model.providerID === session.model?.providerID && model.id === session.model.id,
)
if (!selected)
return yield* new ModelUnavailableError({
providerID: session.model.providerID,
modelID: session.model.id,
})
return yield* resolver.resolveModel(selected, session.model.variant)
}),
})
}),
)
export const node = makeLocationNode({ service: Service, layer, deps: [Catalog.node, ModelResolver.node] })