Files
editor/packages/mcp/src/server.ts
T

95 lines
3.2 KiB
TypeScript

import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js'
import type { SceneBridge } from './bridge/scene-bridge'
import { createSceneOperations, type SceneOperations } from './operations'
import { registerPrompts } from './prompts'
import { registerResources } from './resources'
import { createSceneStore } from './storage'
import type {
SceneEvent,
SceneEventAppendOptions,
SceneEventListOptions,
SceneListOptions,
SceneMeta,
SceneMutateOptions,
SceneSaveOptions,
SceneStore,
SceneWithGraph,
} from './storage/types'
import { registerTools } from './tools'
import { registerVisionTools } from './tools/vision'
export type CreatePascalMcpServerOptions = {
bridge: SceneBridge
operations?: SceneOperations
/** Injected `SceneStore`. When omitted, `createSceneStore()` is used lazily. */
store?: SceneStore
name?: string
version?: string
}
export function createPascalMcpServer(opts: CreatePascalMcpServerOptions): McpServer {
const server = new McpServer({
name: opts.name ?? 'pascal-mcp',
version: opts.version ?? '0.1.0',
})
const store = opts.store ?? createLazySceneStore()
const operations = opts.operations ?? createSceneOperations({ bridge: opts.bridge, store })
registerTools(server, operations)
registerVisionTools(server, operations)
registerResources(server, operations)
registerPrompts(server, operations)
return server
}
/**
* Wrap `createSceneStore()` (which is async) behind a synchronous `SceneStore`
* facade so that `createPascalMcpServer` can remain synchronous. Each method
* resolves the underlying store on first use and memoizes it afterwards.
*/
function createLazySceneStore(): SceneStore {
let cached: Promise<SceneStore> | null = null
const resolve = (): Promise<SceneStore> => {
if (!cached) cached = createSceneStore()
return cached
}
return {
get backend(): 'sqlite' {
return 'sqlite'
},
async save(options: SceneSaveOptions): Promise<SceneMeta> {
const real = await resolve()
return real.save(options)
},
async load(id: string): Promise<SceneWithGraph | null> {
const real = await resolve()
return real.load(id)
},
async list(options?: SceneListOptions): Promise<SceneMeta[]> {
const real = await resolve()
return real.list(options)
},
async delete(id: string, options?: SceneMutateOptions): Promise<boolean> {
const real = await resolve()
return real.delete(id, options)
},
async rename(id: string, newName: string, options?: SceneMutateOptions): Promise<SceneMeta> {
const real = await resolve()
return real.rename(id, newName, options)
},
async appendSceneEvent(options: SceneEventAppendOptions): Promise<SceneEvent> {
const real = await resolve()
if (!real.appendSceneEvent) {
throw new Error('scene_events_unavailable')
}
return real.appendSceneEvent(options)
},
async listSceneEvents(id: string, options?: SceneEventListOptions): Promise<SceneEvent[]> {
const real = await resolve()
if (!real.listSceneEvents) {
throw new Error('scene_events_unavailable')
}
return real.listSceneEvents(id, options)
},
}
}