350 lines
13 KiB
TypeScript
350 lines
13 KiB
TypeScript
import { mkdir, readdir, stat, writeFile } from 'node:fs/promises';
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import path from 'node:path';
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import { isProjectType, type ProjectType } from '../../shared/project-config';
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import {
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createCodingConversationStore,
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type CodingConversationV2,
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} from './conversation-store';
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import {
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normalizeCodingProjectConfigV2,
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readCodingProjectConfigV2,
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writeCodingProjectConfigV2,
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type CodingProjectConfigV2,
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} from './project-config';
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import {
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createLocalCodingProject,
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type CodingProject,
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type CodingProjectStore,
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} from './project-store';
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const MAX_PROJECT_NAME = 100;
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const MAX_KNOWLEDGE_FILE_BYTES = 25 * 1024 * 1024;
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export class CodingProjectServiceError extends Error {
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constructor(
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readonly status: 400 | 404 | 409 | 500,
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readonly code: string,
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message: string,
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) {
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super(message);
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this.name = 'CodingProjectServiceError';
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}
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}
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function storageFailure(error: unknown): never {
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if (error instanceof CodingProjectServiceError) throw error;
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throw new CodingProjectServiceError(
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500,
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'CODING_STORAGE_WRITE_FAILED',
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'Coding project data could not be persisted',
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);
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}
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export interface CreateCodingProjectRequest {
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projectPath?: string;
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parentPath?: string;
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projectName?: string;
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projectType?: ProjectType;
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}
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export interface CodingProjectConfigSnapshot {
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project: CodingProject;
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config: CodingProjectConfigV2;
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knowledgeFiles: string[];
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}
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export interface CodingProjectServiceOptions {
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onResourcesChanged?(project: CodingProject): Promise<void> | void;
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onProjectDeactivated?(project: CodingProject): Promise<void> | void;
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writeConfig?: typeof writeCodingProjectConfigV2;
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}
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function requiredAbsolutePath(value: string | undefined, label: string): string {
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const input = value?.trim() ?? '';
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if (!input || !path.isAbsolute(input)) {
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throw new CodingProjectServiceError(400, 'CODING_PROJECT_REQUEST_INVALID', `${label} must be an absolute path`);
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}
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return path.resolve(input);
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}
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function projectChildPath(parentPath: string | undefined, projectName: string | undefined): string {
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const parent = requiredAbsolutePath(parentPath, 'Project parent path');
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const name = projectName?.trim() ?? '';
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if (!name || name.length > MAX_PROJECT_NAME || name === '.' || name === '..'
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|| name.includes('/') || name.includes('\\') || name.includes('\0')) {
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throw new CodingProjectServiceError(400, 'CODING_PROJECT_REQUEST_INVALID', 'Project name is invalid');
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}
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return path.join(parent, name);
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}
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function assertStableConfig(previous: CodingProjectConfigV2, next: CodingProjectConfigV2): void {
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if (next.projectType !== previous.projectType) {
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throw new CodingProjectServiceError(409, 'CODING_PROJECT_TYPE_IMMUTABLE', 'Project type cannot be changed');
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}
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if (next.createdAt !== previous.createdAt) {
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throw new CodingProjectServiceError(409, 'CODING_PROJECT_IDENTITY_IMMUTABLE', 'Project creation identity cannot be changed');
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}
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const nextIds = new Set(next.agents.map(({ id }) => id));
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if (previous.agents.some(({ id }) => !nextIds.has(id))) {
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throw new CodingProjectServiceError(409, 'CODING_AGENT_ID_IMMUTABLE', 'Existing Agent ids must be preserved');
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}
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}
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export class CodingProjectService {
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private readonly conversationStores = new Map<
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string,
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ReturnType<typeof createCodingConversationStore>
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>();
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private activeTransitionTail = Promise.resolve();
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constructor(
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private readonly store: CodingProjectStore,
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private readonly options: CodingProjectServiceOptions = {},
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) {}
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listProjects(): Promise<CodingProject[]> {
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return this.store.listProjects();
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}
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getActiveProject(): Promise<CodingProject | null> {
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return this.store.getActiveProject();
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}
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async requireActiveProject(): Promise<CodingProject> {
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const project = await this.getActiveProject();
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if (!project) {
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throw new CodingProjectServiceError(
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409,
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'CODING_ACTIVE_PROJECT_REQUIRED',
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'No active coding project is selected',
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);
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}
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return project;
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}
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async getProject(projectId: string): Promise<CodingProject> {
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const id = projectId.trim();
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const project = (await this.store.listProjects()).find((candidate) => candidate.id === id);
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if (!project) {
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throw new CodingProjectServiceError(404, 'CODING_PROJECT_NOT_FOUND', 'Coding project does not exist');
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}
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return project;
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}
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async openProject(projectPath: string): Promise<CodingProject> {
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const resolved = requiredAbsolutePath(projectPath, 'Project path');
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const entry = await stat(resolved).catch(() => null);
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if (!entry?.isDirectory()) {
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throw new CodingProjectServiceError(400, 'CODING_PROJECT_REQUEST_INVALID', 'Project path is not a directory');
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}
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try {
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return await this.transitionActiveProject(async () => {
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const project = await this.store.openFolder(resolved);
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return { project, value: project };
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});
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} catch (error) {
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storageFailure(error);
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}
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}
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async createProject(input: CreateCodingProjectRequest): Promise<CodingProjectConfigSnapshot> {
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const selectedPath = input.projectPath?.trim();
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if (selectedPath && (input.parentPath?.trim() || input.projectName?.trim())) {
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throw new CodingProjectServiceError(400, 'CODING_PROJECT_REQUEST_INVALID', 'Project path input is ambiguous');
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}
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if (input.projectType !== undefined && !isProjectType(input.projectType)) {
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throw new CodingProjectServiceError(400, 'CODING_PROJECT_REQUEST_INVALID', 'Project type is invalid');
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}
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const projectPath = selectedPath
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? requiredAbsolutePath(selectedPath, 'Project path')
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: projectChildPath(input.parentPath, input.projectName);
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if (!selectedPath) {
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const existing = await stat(projectPath).catch(() => null);
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if (existing) {
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throw new CodingProjectServiceError(409, 'CODING_PROJECT_ALREADY_EXISTS', 'Project directory already exists');
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}
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}
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try {
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await mkdir(projectPath, { recursive: true });
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} catch (error) {
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storageFailure(error);
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}
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try {
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return await this.transitionActiveProject(async () => {
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const { project, config } = await createLocalCodingProject({
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projectPath,
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...(input.projectType ? { projectType: input.projectType } : {}),
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}, this.store);
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const snapshot = { project, config, knowledgeFiles: [] };
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return { project, value: snapshot };
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});
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} catch (error) {
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if (error instanceof CodingProjectServiceError) throw error;
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if (error instanceof Error && error.message === 'Coding project configuration already exists') {
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throw new CodingProjectServiceError(409, 'CODING_PROJECT_ALREADY_EXISTS', 'Coding project already exists');
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}
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storageFailure(error);
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}
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}
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async removeProject(projectId: string): Promise<void> {
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const project = await this.getProject(projectId);
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const active = await this.store.getActiveProject();
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if (active?.id === project.id) await this.options.onProjectDeactivated?.(project);
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try {
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await this.store.removeProject(project.id);
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} catch (error) {
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storageFailure(error);
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}
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this.conversationStores.delete(project.path);
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}
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async setActiveProject(projectId: string): Promise<CodingProject> {
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const project = await this.getProject(projectId);
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const config = await readCodingProjectConfigV2(project.path);
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if (config.status !== 'valid') {
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throw new CodingProjectServiceError(
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409,
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'CODING_PROJECT_CONFIG_INVALID',
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'Coding project configuration is unavailable',
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);
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}
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try {
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return await this.transitionActiveProject(async () => {
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const activated = (await this.store.setActiveProject(project.id)) as CodingProject;
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return { project: activated, value: activated };
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});
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} catch (error) {
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storageFailure(error);
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}
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}
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async getConfig(projectId?: string): Promise<CodingProjectConfigSnapshot> {
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const project = projectId ? await this.getProject(projectId) : await this.requireActiveProject();
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const result = await readCodingProjectConfigV2(project.path);
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if (result.status !== 'valid') {
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throw new CodingProjectServiceError(
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409,
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'CODING_PROJECT_CONFIG_INVALID',
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'Coding project configuration is unavailable',
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);
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}
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return {
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project,
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config: result.config,
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knowledgeFiles: await this.listKnowledgeFiles(project.path),
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};
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}
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async saveConfig(projectId: string, value: unknown): Promise<CodingProjectConfigSnapshot> {
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const current = await this.getConfig(projectId);
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let next: CodingProjectConfigV2;
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try {
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next = normalizeCodingProjectConfigV2(value);
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assertStableConfig(current.config, next);
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} catch (error) {
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if (error instanceof CodingProjectServiceError) throw error;
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throw new CodingProjectServiceError(400, 'CODING_PROJECT_CONFIG_INVALID', 'Coding project configuration is invalid');
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}
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try {
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await (this.options.writeConfig ?? writeCodingProjectConfigV2)(current.project.path, next);
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} catch (error) {
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storageFailure(error);
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}
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await this.options.onResourcesChanged?.(current.project);
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return {
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project: current.project,
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config: next,
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knowledgeFiles: await this.listKnowledgeFiles(current.project.path),
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};
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}
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async addKnowledgeFile(input: {
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projectId: string;
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fileName: string;
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contentBase64: string;
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}): Promise<string[]> {
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const project = await this.getProject(input.projectId);
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await this.getConfig(project.id);
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const fileName = input.fileName.trim();
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if (!fileName || fileName !== path.basename(fileName) || fileName === '.' || fileName === '..'
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|| fileName.includes('\0')) {
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throw new CodingProjectServiceError(400, 'CODING_KNOWLEDGE_REQUEST_INVALID', 'Knowledge filename is invalid');
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}
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if (!/^[A-Za-z0-9+/]*={0,2}$/.test(input.contentBase64) || input.contentBase64.length % 4 !== 0) {
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throw new CodingProjectServiceError(400, 'CODING_KNOWLEDGE_REQUEST_INVALID', 'Knowledge content is invalid');
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}
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const content = Buffer.from(input.contentBase64, 'base64');
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if (content.byteLength > MAX_KNOWLEDGE_FILE_BYTES) {
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throw new CodingProjectServiceError(400, 'CODING_KNOWLEDGE_REQUEST_INVALID', 'Knowledge file exceeds 25 MB');
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}
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const directory = path.join(project.path, 'knowledge');
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try {
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await mkdir(directory, { recursive: true });
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} catch (error) {
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storageFailure(error);
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}
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try {
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await writeFile(path.join(directory, fileName), content, { flag: 'wx' });
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} catch (error) {
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if ((error as NodeJS.ErrnoException).code === 'EEXIST') {
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throw new CodingProjectServiceError(409, 'CODING_KNOWLEDGE_ALREADY_EXISTS', 'Knowledge file already exists');
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}
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storageFailure(error);
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}
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await this.options.onResourcesChanged?.(project);
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return await this.listKnowledgeFiles(project.path);
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}
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conversationStore(projectPath: string): ReturnType<typeof createCodingConversationStore> {
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const existing = this.conversationStores.get(projectPath);
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if (existing) return existing;
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const created = createCodingConversationStore(projectPath);
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this.conversationStores.set(projectPath, created);
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return created;
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}
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async findActiveConversation(conversationId: string): Promise<{
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project: CodingProject;
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conversation: CodingConversationV2;
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}> {
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const project = await this.requireActiveProject();
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const conversation = await this.conversationStore(project.path).get(conversationId.trim());
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if (!conversation) {
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throw new CodingProjectServiceError(
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404,
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'CODING_CONVERSATION_NOT_FOUND',
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'Coding Conversation does not exist',
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);
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}
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return { project, conversation };
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}
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private async listKnowledgeFiles(projectPath: string): Promise<string[]> {
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try {
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const entries = await readdir(path.join(projectPath, 'knowledge'), { withFileTypes: true });
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return entries.filter((entry) => entry.isFile()).map((entry) => entry.name).sort();
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} catch (error) {
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if ((error as NodeJS.ErrnoException).code === 'ENOENT') return [];
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throw error;
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}
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}
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private transitionActiveProject<T>(operation: () => Promise<{
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project: CodingProject;
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value: T;
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}>): Promise<T> {
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const execute = async () => {
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const previous = await this.store.getActiveProject();
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const result = await operation();
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if (previous && previous.id !== result.project.id) {
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await this.options.onProjectDeactivated?.(previous);
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}
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return result.value;
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};
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const result = this.activeTransitionTail.then(execute, execute);
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this.activeTransitionTail = result.then(() => undefined, () => undefined);
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return result;
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}
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}
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