/**
* Copyright 2025 Russ White
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Configuration service using Effect Context
*/
import { Context, Effect, Layer } from "effect";
/**
* Error types for configuration
*/
export class ConfigError {
readonly _tag = "ConfigError";
constructor(readonly message: string) {}
}
/**
* Slab configuration
*/
export interface SlabConfig {
readonly apiToken: string;
readonly team: string;
readonly graphqlUrl: string;
}
/**
* Configuration service interface
*/
export interface ConfigService {
readonly config: SlabConfig;
}
/**
* Configuration context tag
*/
export const ConfigService = Context.GenericTag<ConfigService>("@services/ConfigService");
/**
* Load configuration from environment variables
*/
export const loadConfig = (): Effect.Effect<SlabConfig, ConfigError> =>
Effect.gen(function* () {
const apiToken = process.env.SLAB_API_TOKEN;
const team = process.env.SLAB_TEAM;
if (!apiToken) {
return yield* Effect.fail(new ConfigError("SLAB_API_TOKEN environment variable is required"));
}
if (!team) {
return yield* Effect.fail(new ConfigError("SLAB_TEAM environment variable is required"));
}
return {
apiToken,
team,
graphqlUrl: "https://api.slab.com/v1/graphql",
};
});
/**
* Live configuration layer - loads from environment
*/
export const ConfigServiceLive = Layer.effect(
ConfigService,
Effect.gen(function* () {
const config = yield* loadConfig();
return { config };
})
);
