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import { describe, expect } from "bun:test"
import { Effect } from "effect"
import { Catalog } from "@opencode-ai/core/catalog"
import { ModelV2 } from "@opencode-ai/core/model"
import { PluginV2 } from "@opencode-ai/core/plugin"
import { PluginHost } from "@opencode-ai/core/plugin/host"
import { CloudflareWorkersAIPlugin } from "@opencode-ai/core/plugin/provider/cloudflare-workers-ai"
import { ProviderV2 } from "@opencode-ai/core/provider"
import type { LanguageModelV3 } from "@ai-sdk/provider"
import { testEffect } from "../lib/effect"
import { PluginTestLayer } from "./fixture"
const it = testEffect(PluginTestLayer)
const addPlugin = Effect.fn(function* () {
const plugin = yield* PluginV2.Service
const aisdk = yield* AISDK.Service
const host = yield* PluginHost.make(plugin)
yield* CloudflareWorkersAIPlugin.effect(host)
})
function required<T>(value: T | undefined): T {
if (value === undefined) throw new Error("Expected value")
return value
}
function withEnv<A, E, R>(vars: Record<string, string | undefined>, effect: () => Effect.Effect<A, E, R>) {
return Effect.acquireUseRelease(
Effect.sync(() => {
const previous = Object.fromEntries(Object.keys(vars).map((key) => [key, process.env[key]]))
Object.entries(vars).forEach(([key, value]) => {
if (value === undefined) delete process.env[key]
else process.env[key] = value
})
return previous
}),
effect,
(previous) =>
Effect.sync(() =>
Object.entries(previous).forEach(([key, value]) => {
if (value === undefined) delete process.env[key]
else process.env[key] = value
}),
),
)
}
function fakeSelectorSdk(calls: string[]) {
const make = (method: string) => (id: string) => {
calls.push(`${method}:${id}`)
return { modelId: id, provider: method, specificationVersion: "v3" } as unknown as LanguageModelV3
}
return {
responses: make("responses"),
messages: make("messages"),
chat: make("chat"),
languageModel: make("languageModel"),
}
}
function cloudflareLanguage(sdk: unknown, modelID = "@cf/model") {
return (sdk as { languageModel: (id: string) => { config: CloudflareConfig; provider: string } }).languageModel(
modelID,
)
}
type CloudflareConfig = {
url: (input: { path: string; modelId: string }) => string
headers: () => Record<string, string> | Promise<Record<string, string>>
}
function cloudflareURL(sdk: unknown, modelID = "@cf/model") {
return cloudflareLanguage(sdk, modelID).config.url({ path: "/chat/completions", modelId: modelID })
}
function cloudflareHeaders(sdk: unknown, modelID = "@cf/model") {
return cloudflareLanguage(sdk, modelID).config.headers()
}
describe("CloudflareWorkersAIPlugin", () => {
it.effect("maps account ID to endpoint URL and creates an OpenAI-compatible SDK", () =>
withEnv({ CLOUDFLARE_ACCOUNT_ID: "acct", CLOUDFLARE_API_KEY: "key" }, () =>
Effect.gen(function* () {
const plugin = yield* PluginV2.Service
const aisdk = yield* AISDK.Service
const catalog = yield* Catalog.Service
yield* catalog.transform((catalog) =>
catalog.provider.update(ProviderV2.ID.make("cloudflare-workers-ai"), (provider) => {
provider.api = { type: "aisdk", package: "test-provider" }
}),
)
yield* addPlugin()
const provider = required(yield* catalog.provider.get(ProviderV2.ID.make("cloudflare-workers-ai")))
const sdk = yield* aisdk.runSDK({
model: ModelV2.Info.make({
...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
api: { id: ModelV2.ID.make("@cf/model"), ...provider.api },
}),
package: "@ai-sdk/openai-compatible",
options: { name: "cloudflare-workers-ai", headers: { custom: "header" } },
})
expect(provider.api).toEqual({
type: "aisdk",
package: "test-provider",
url: "https://api.cloudflare.com/client/v4/accounts/acct/ai/v1",
})
expect(sdk.sdk).toBeDefined()
}),
),
)
it.effect("preserves a configured endpoint URL instead of deriving one from account ID", () =>
withEnv({ CLOUDFLARE_ACCOUNT_ID: "acct" }, () =>
Effect.gen(function* () {
const catalog = yield* Catalog.Service
yield* catalog.transform((catalog) =>
catalog.provider.update(ProviderV2.ID.make("cloudflare-workers-ai"), (provider) => {
provider.api = { type: "aisdk", package: "test-provider", url: "https://proxy.example/v1" }
}),
)
yield* addPlugin()
expect(required(yield* catalog.provider.get(ProviderV2.ID.make("cloudflare-workers-ai"))).api).toEqual({
type: "aisdk",
package: "test-provider",
url: "https://proxy.example/v1",
})
}),
),
)
it.effect("allows a configured baseURL without account ID", () =>
withEnv({ CLOUDFLARE_ACCOUNT_ID: undefined, CLOUDFLARE_API_KEY: "key" }, () =>
Effect.gen(function* () {
const plugin = yield* PluginV2.Service
const aisdk = yield* AISDK.Service
yield* addPlugin()
const result = yield* aisdk.runSDK({
model: ModelV2.Info.make({
...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
api: {
id: ModelV2.ID.make("@cf/model"),
type: "aisdk",
package: "@ai-sdk/openai-compatible",
url: "https://proxy.example/v1",
},
}),
package: "@ai-sdk/openai-compatible",
options: { name: "cloudflare-workers-ai", baseURL: "https://proxy.example/v1" },
})
expect(cloudflareURL(result.sdk)).toBe("https://proxy.example/v1/chat/completions")
}),
),
)
it.effect("uses env account ID over configured account ID", () =>
withEnv({ CLOUDFLARE_ACCOUNT_ID: "env-acct" }, () =>
Effect.gen(function* () {
const catalog = yield* Catalog.Service
yield* catalog.transform((catalog) =>
catalog.provider.update(ProviderV2.ID.make("cloudflare-workers-ai"), (provider) => {
provider.api = { type: "aisdk", package: "test-provider" }
provider.request.body.accountId = "configured-acct"
}),
)
yield* addPlugin()
expect(required(yield* catalog.provider.get(ProviderV2.ID.make("cloudflare-workers-ai"))).api).toEqual({
type: "aisdk",
package: "test-provider",
url: "https://api.cloudflare.com/client/v4/accounts/env-acct/ai/v1",
})
}),
),
)
it.effect("uses env API key over auth or configured API key and keeps the Cloudflare User-Agent", () =>
withEnv({ CLOUDFLARE_ACCOUNT_ID: "acct", CLOUDFLARE_API_KEY: "env-key" }, () =>
Effect.gen(function* () {
const plugin = yield* PluginV2.Service
const aisdk = yield* AISDK.Service
yield* addPlugin()
const result = yield* aisdk.runSDK({
model: ModelV2.Info.make({
...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
api: {
id: ModelV2.ID.make("@cf/model"),
type: "aisdk",
package: "@ai-sdk/openai-compatible",
url: "https://proxy.example/v1",
},
}),
package: "@ai-sdk/openai-compatible",
options: {
name: "cloudflare-workers-ai",
apiKey: "auth-key",
baseURL: "https://proxy.example/v1",
headers: { custom: "header" },
},
})
const headers = yield* Effect.promise(() => Promise.resolve(cloudflareHeaders(result.sdk)))
expect(headers.authorization).toBe("Bearer env-key")
expect(headers.custom).toBe("header")
expect(headers["user-agent"]).toMatch(/^opencode\/.* cloudflare-workers-ai \(.+\) ai-sdk\/openai-compatible\//)
}),
),
)
it.effect("expands account ID vars in endpoint URLs", () =>
withEnv({ CLOUDFLARE_ACCOUNT_ID: "acct", CLOUDFLARE_API_KEY: "key" }, () =>
Effect.gen(function* () {
const plugin = yield* PluginV2.Service
const aisdk = yield* AISDK.Service
yield* addPlugin()
const result = yield* aisdk.runSDK({
model: ModelV2.Info.make({
...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
api: {
id: ModelV2.ID.make("@cf/model"),
type: "aisdk",
package: "@ai-sdk/openai-compatible",
url: "https://api.cloudflare.com/client/v4/accounts/${CLOUDFLARE_ACCOUNT_ID}/ai/v1",
},
}),
package: "@ai-sdk/openai-compatible",
options: {
name: "cloudflare-workers-ai",
baseURL: "https://api.cloudflare.com/client/v4/accounts/${CLOUDFLARE_ACCOUNT_ID}/ai/v1",
},
})
expect(cloudflareURL(result.sdk)).toBe(
"https://api.cloudflare.com/client/v4/accounts/acct/ai/v1/chat/completions",
)
}),
),
)
it.effect("selects languageModel with the API model ID", () =>
Effect.gen(function* () {
const plugin = yield* PluginV2.Service
const aisdk = yield* AISDK.Service
const calls: string[] = []
yield* addPlugin()
const result = yield* aisdk.runLanguage({
model: ModelV2.Info.make({
...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("alias")),
api: { id: ModelV2.ID.make("@cf/api-model"), type: "aisdk", package: "test-provider" },
}),
sdk: fakeSelectorSdk(calls),
options: {},
})
expect(result.language).toBeDefined()
expect(calls).toEqual(["languageModel:@cf/api-model"])
}),
)
it.effect("does not create an SDK for non OpenAI-compatible packages", () =>
withEnv({ CLOUDFLARE_ACCOUNT_ID: "acct", CLOUDFLARE_API_KEY: "key" }, () =>
Effect.gen(function* () {
const plugin = yield* PluginV2.Service
const aisdk = yield* AISDK.Service
yield* addPlugin()
const result = yield* aisdk.runSDK({
model: ModelV2.Info.make({
...ModelV2.Info.empty(ProviderV2.ID.make("cloudflare-workers-ai"), ModelV2.ID.make("@cf/model")),
api: {
id: ModelV2.ID.make("@cf/model"),
type: "aisdk",
package: "@ai-sdk/anthropic",
url: "https://proxy.example/v1",
},
}),
package: "@ai-sdk/anthropic",
options: { name: "cloudflare-workers-ai" },
})
expect(result.sdk).toBeUndefined()
}),
),
)
})
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