cc-haha/src/server/services/providerService.ts

292 lines
9.1 KiB
TypeScript

/**
* Provider Service — preset-based provider configuration
*
* Storage: ~/.claude/cc-haha/providers.json (lightweight index)
* Active provider env vars written to ~/.claude/settings.json
*/
import * as fs from 'fs/promises'
import * as path from 'path'
import * as os from 'os'
import { ApiError } from '../middleware/errorHandler.js'
import type {
SavedProvider,
ProvidersIndex,
CreateProviderInput,
UpdateProviderInput,
TestProviderInput,
ProviderTestResult,
} from '../types/provider.js'
const MANAGED_ENV_KEYS = [
'ANTHROPIC_BASE_URL',
'ANTHROPIC_AUTH_TOKEN',
'ANTHROPIC_MODEL',
'ANTHROPIC_DEFAULT_HAIKU_MODEL',
'ANTHROPIC_DEFAULT_SONNET_MODEL',
'ANTHROPIC_DEFAULT_OPUS_MODEL',
] as const
const DEFAULT_INDEX: ProvidersIndex = { activeId: null, providers: [] }
export class ProviderService {
private getConfigDir(): string {
return process.env.CLAUDE_CONFIG_DIR || path.join(os.homedir(), '.claude')
}
private getCcHahaDir(): string {
return path.join(this.getConfigDir(), 'cc-haha')
}
private getIndexPath(): string {
return path.join(this.getCcHahaDir(), 'providers.json')
}
private getSettingsPath(): string {
return path.join(this.getConfigDir(), 'settings.json')
}
private async readIndex(): Promise<ProvidersIndex> {
try {
const raw = await fs.readFile(this.getIndexPath(), 'utf-8')
return JSON.parse(raw) as ProvidersIndex
} catch (err: unknown) {
if ((err as NodeJS.ErrnoException).code === 'ENOENT') {
return { ...DEFAULT_INDEX, providers: [] }
}
throw ApiError.internal(`Failed to read providers index: ${err}`)
}
}
private async writeIndex(index: ProvidersIndex): Promise<void> {
const filePath = this.getIndexPath()
const dir = path.dirname(filePath)
await fs.mkdir(dir, { recursive: true })
const tmpFile = `${filePath}.tmp.${Date.now()}`
try {
await fs.writeFile(tmpFile, JSON.stringify(index, null, 2) + '\n', 'utf-8')
await fs.rename(tmpFile, filePath)
} catch (err) {
await fs.unlink(tmpFile).catch(() => {})
throw ApiError.internal(`Failed to write providers index: ${err}`)
}
}
private async readSettings(): Promise<Record<string, unknown>> {
try {
const raw = await fs.readFile(this.getSettingsPath(), 'utf-8')
return JSON.parse(raw) as Record<string, unknown>
} catch (err: unknown) {
if ((err as NodeJS.ErrnoException).code === 'ENOENT') return {}
throw ApiError.internal(`Failed to read settings.json: ${err}`)
}
}
private async writeSettings(settings: Record<string, unknown>): Promise<void> {
const filePath = this.getSettingsPath()
const dir = path.dirname(filePath)
await fs.mkdir(dir, { recursive: true })
const tmpFile = `${filePath}.tmp.${Date.now()}`
try {
await fs.writeFile(tmpFile, JSON.stringify(settings, null, 2) + '\n', 'utf-8')
await fs.rename(tmpFile, filePath)
} catch (err) {
await fs.unlink(tmpFile).catch(() => {})
throw ApiError.internal(`Failed to write settings.json: ${err}`)
}
}
// --- CRUD ---
async listProviders(): Promise<{ providers: SavedProvider[]; activeId: string | null }> {
const index = await this.readIndex()
return { providers: index.providers, activeId: index.activeId }
}
async getProvider(id: string): Promise<SavedProvider> {
const index = await this.readIndex()
const provider = index.providers.find((p) => p.id === id)
if (!provider) throw ApiError.notFound(`Provider not found: ${id}`)
return provider
}
async addProvider(input: CreateProviderInput): Promise<SavedProvider> {
const index = await this.readIndex()
const provider: SavedProvider = {
id: crypto.randomUUID(),
presetId: input.presetId,
name: input.name,
apiKey: input.apiKey,
baseUrl: input.baseUrl,
models: input.models,
...(input.notes !== undefined && { notes: input.notes }),
}
index.providers.push(provider)
await this.writeIndex(index)
return provider
}
async updateProvider(id: string, input: UpdateProviderInput): Promise<SavedProvider> {
const index = await this.readIndex()
const idx = index.providers.findIndex((p) => p.id === id)
if (idx === -1) throw ApiError.notFound(`Provider not found: ${id}`)
const existing = index.providers[idx]
const updated: SavedProvider = {
...existing,
...(input.name !== undefined && { name: input.name }),
...(input.apiKey !== undefined && { apiKey: input.apiKey }),
...(input.baseUrl !== undefined && { baseUrl: input.baseUrl }),
...(input.models !== undefined && { models: input.models }),
...(input.notes !== undefined && { notes: input.notes }),
}
index.providers[idx] = updated
await this.writeIndex(index)
if (index.activeId === id) {
await this.syncToSettings(updated)
}
return updated
}
async deleteProvider(id: string): Promise<void> {
const index = await this.readIndex()
const idx = index.providers.findIndex((p) => p.id === id)
if (idx === -1) throw ApiError.notFound(`Provider not found: ${id}`)
if (index.activeId === id) {
throw ApiError.conflict('Cannot delete the active provider. Switch to another provider first.')
}
index.providers.splice(idx, 1)
await this.writeIndex(index)
}
// --- Activation ---
async activateProvider(id: string): Promise<void> {
const index = await this.readIndex()
const provider = index.providers.find((p) => p.id === id)
if (!provider) throw ApiError.notFound(`Provider not found: ${id}`)
index.activeId = id
await this.writeIndex(index)
if (provider.presetId === 'official') {
await this.clearProviderFromSettings()
} else {
await this.syncToSettings(provider)
}
}
async activateOfficial(): Promise<void> {
const index = await this.readIndex()
index.activeId = null
await this.writeIndex(index)
await this.clearProviderFromSettings()
}
// --- Settings sync ---
private async syncToSettings(provider: SavedProvider): Promise<void> {
const settings = await this.readSettings()
const existingEnv = (settings.env as Record<string, string>) || {}
settings.env = {
...existingEnv,
ANTHROPIC_BASE_URL: provider.baseUrl,
ANTHROPIC_AUTH_TOKEN: provider.apiKey,
ANTHROPIC_MODEL: provider.models.main,
ANTHROPIC_DEFAULT_HAIKU_MODEL: provider.models.haiku,
ANTHROPIC_DEFAULT_SONNET_MODEL: provider.models.sonnet,
ANTHROPIC_DEFAULT_OPUS_MODEL: provider.models.opus,
}
await this.writeSettings(settings)
}
private async clearProviderFromSettings(): Promise<void> {
const settings = await this.readSettings()
const env = (settings.env as Record<string, string>) || {}
for (const key of MANAGED_ENV_KEYS) {
delete env[key]
}
settings.env = env
if (Object.keys(env).length === 0) {
delete settings.env
}
await this.writeSettings(settings)
}
// --- Test ---
async testProvider(id: string): Promise<ProviderTestResult> {
const provider = await this.getProvider(id)
if (!provider.baseUrl || !provider.apiKey) {
return { success: false, latencyMs: 0, error: 'Missing baseUrl or apiKey' }
}
return this.testProviderConfig({
baseUrl: provider.baseUrl,
apiKey: provider.apiKey,
modelId: provider.models.main,
})
}
async testProviderConfig(input: TestProviderInput): Promise<ProviderTestResult> {
const url = `${input.baseUrl.replace(/\/+$/, '')}/v1/messages`
const start = Date.now()
try {
const response = await fetch(url, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'x-api-key': input.apiKey,
'anthropic-version': '2023-06-01',
},
body: JSON.stringify({
model: input.modelId,
max_tokens: 1,
messages: [{ role: 'user', content: 'Hi' }],
}),
signal: AbortSignal.timeout(15000),
})
const latencyMs = Date.now() - start
if (response.ok) {
return { success: true, latencyMs, modelUsed: input.modelId, httpStatus: response.status }
}
let errorMessage = `HTTP ${response.status}`
try {
const body = (await response.json()) as Record<string, unknown>
if (body.error && typeof body.error === 'object') {
errorMessage = ((body.error as Record<string, unknown>).message as string) || errorMessage
} else if (typeof body.message === 'string') {
errorMessage = body.message
}
} catch {
errorMessage = `HTTP ${response.status} ${response.statusText}`
}
return { success: false, latencyMs, error: errorMessage, modelUsed: input.modelId, httpStatus: response.status }
} catch (err: unknown) {
const latencyMs = Date.now() - start
if (err instanceof DOMException && err.name === 'TimeoutError') {
return { success: false, latencyMs, error: 'Request timed out after 15 seconds', modelUsed: input.modelId }
}
return { success: false, latencyMs, error: err instanceof Error ? err.message : String(err), modelUsed: input.modelId }
}
}
}