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

import { ConfigService } from "@/effect/config-service"

const bool = (name: string) => Config.boolean(name).pipe(Config.withDefault(false))

const experimental = bool("OPENCODE_EXPERIMENTAL")

const enabledByExperimental = (name: string) =>

Config.all({ experimental, enabled: bool(name) }).pipe(Config.map((flags) => flags.experimental || flags.enabled))

export class Service extends ConfigService.Service<Service>()("@opencode/RuntimeFlags", {

pure: bool("OPENCODE_PURE"),

disableDefaultPlugins: bool("OPENCODE_DISABLE_DEFAULT_PLUGINS"),

enableExa: Config.all({

experimental,

enabled: bool("OPENCODE_ENABLE_EXA"),

legacy: bool("OPENCODE_EXPERIMENTAL_EXA"),

}).pipe(Config.map((flags) => flags.experimental || flags.enabled || flags.legacy)),

enableParallel: Config.all({

enabled: bool("OPENCODE_ENABLE_PARALLEL"),

legacy: bool("OPENCODE_EXPERIMENTAL_PARALLEL"),

}).pipe(Config.map((flags) => flags.enabled || flags.legacy)),

enableQuestionTool: bool("OPENCODE_ENABLE_QUESTION_TOOL"),

experimentalScout: enabledByExperimental("OPENCODE_EXPERIMENTAL_SCOUT"),

experimentalLspTool: enabledByExperimental("OPENCODE_EXPERIMENTAL_LSP_TOOL"),

experimentalPlanMode: enabledByExperimental("OPENCODE_EXPERIMENTAL_PLAN_MODE"),

experimentalEventSystem: enabledByExperimental("OPENCODE_EXPERIMENTAL_EVENT_SYSTEM"),

experimentalWorkspaces: enabledByExperimental("OPENCODE_EXPERIMENTAL_WORKSPACES"),

client: Config.string("OPENCODE_CLIENT").pipe(Config.withDefault("cli")),

}) {}

export type Info = Context.Service.Shape<typeof Service>

const emptyConfigLayer = Service.defaultLayer.pipe(

Layer.provide(ConfigProvider.layer(ConfigProvider.fromUnknown({}))),

Layer.orDie,

)

export const layer = (overrides: Partial<Info> = {}) =>

Layer.effect(

Service,

Effect.gen(function* () {

const flags = yield* Service

return Service.of({ ...flags, ...overrides })

}),

).pipe(Layer.provide(emptyConfigLayer))

export const defaultLayer = Service.defaultLayer.pipe(Layer.orDie)

export * as RuntimeFlags from "./runtime-flags"