import { LayerNode } from "@opencode-ai/core/effect/layer-node"

import { InstanceState } from "@/effect/instance-state"

import { SessionID } from "./schema"

import { Effect, Layer, Context } from "effect"

import { EventV2Bridge } from "@/event-v2-bridge"

import { SessionStatusEvent } from "@opencode-ai/schema/session-status-event"

export const Info = SessionStatusEvent.Info

export type Info = SessionStatusEvent.Info

export const Event = SessionStatusEvent

export interface Interface {

readonly get: (sessionID: SessionID) => Effect.Effect<Info>

readonly list: () => Effect.Effect<Map<SessionID, Info>>

readonly set: (sessionID: SessionID, status: Info) => Effect.Effect<void>

}

export class Service extends Context.Service<Service, Interface>()("@opencode/SessionStatus") {}

const layer = Layer.effect(

Service,

Effect.gen(function* () {

const events = yield* EventV2Bridge.Service

const state = yield* InstanceState.make(

Effect.fn("SessionStatus.state")(() => Effect.succeed(new Map<SessionID, Info>())),

)

const get = Effect.fn("SessionStatus.get")(function* (sessionID: SessionID) {

const data = yield* InstanceState.get(state)

return data.get(sessionID) ?? { type: "idle" as const }

})

const list = Effect.fn("SessionStatus.list")(function* () {

return new Map(yield* InstanceState.get(state))

})

const set = Effect.fn("SessionStatus.set")(function* (sessionID: SessionID, status: Info) {

const data = yield* InstanceState.get(state)

yield* events.publish(Event.Status, { sessionID, status })

if (status.type === "idle") {

yield* events.publish(Event.Idle, { sessionID })

data.delete(sessionID)

return

}

data.set(sessionID, status)

})

return Service.of({ get, list, set })

}),

)

export const node = LayerNode.make({ service: Service, layer: layer, deps: [EventV2Bridge.node] })

export * as SessionStatus from "./status"