feat(#171): Implement chat command parsing

Add command parsing layer for chat integration (Discord, Mattermost, Slack).

Features:
- Parse @mosaic commands with action dispatch
- Support 3 issue reference formats: #42, owner/repo#42, full URL
- Handle 7 actions: fix, status, cancel, retry, verbose, quiet, help
- Comprehensive error handling with helpful messages
- Case-insensitive parsing
- Platform-agnostic design

Implementation:
- CommandParserService with tokenizer and action dispatcher
- Regex-based issue reference parsing
- Type-safe command structures
- 24 unit tests with 100% coverage

TDD approach:
- RED: Wrote comprehensive tests first
- GREEN: Implemented parser to pass all tests
- REFACTOR: Fixed TypeScript strict mode and linting issues

Quality gates passed:
- ✓ Typecheck
- ✓ Lint
- ✓ Build
- ✓ Tests (24/24 passing)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
2026-02-01 21:32:53 -06:00
parent 4ac21d1a3a
commit e689a1379c
40 changed files with 1618 additions and 6 deletions

View File

@@ -20,6 +20,7 @@ describe("RunnerJobsController", () => {
findOne: vi.fn(),
cancel: vi.fn(),
retry: vi.fn(),
streamEvents: vi.fn(),
};
const mockAuthGuard = {
@@ -235,4 +236,71 @@ describe("RunnerJobsController", () => {
expect(service.retry).toHaveBeenCalledWith(jobId, workspaceId);
});
});
describe("streamEvents", () => {
it("should stream events via SSE", async () => {
const jobId = "job-123";
const workspaceId = "workspace-123";
// Mock response object
const mockRes = {
setHeader: vi.fn(),
write: vi.fn(),
end: vi.fn(),
};
const mockEvents = [
{
id: "event-1",
jobId,
type: "step.started",
timestamp: new Date(),
actor: "system",
payload: { stepId: "step-1", name: "Running tests", phase: "validation" },
},
{
id: "event-2",
jobId,
type: "step.output",
timestamp: new Date(),
actor: "system",
payload: { stepId: "step-1", chunk: "Test suite passed: 42/42" },
},
];
mockRunnerJobsService.streamEvents.mockResolvedValue(mockEvents);
await controller.streamEvents(jobId, workspaceId, mockRes as never);
// Verify headers are set
expect(mockRes.setHeader).toHaveBeenCalledWith("Content-Type", "text/event-stream");
expect(mockRes.setHeader).toHaveBeenCalledWith("Cache-Control", "no-cache");
expect(mockRes.setHeader).toHaveBeenCalledWith("Connection", "keep-alive");
// Verify service was called
expect(service.streamEvents).toHaveBeenCalledWith(jobId, workspaceId, mockRes);
});
it("should handle errors during streaming", async () => {
const jobId = "job-123";
const workspaceId = "workspace-123";
const mockRes = {
setHeader: vi.fn(),
write: vi.fn(),
end: vi.fn(),
};
const error = new Error("Job not found");
mockRunnerJobsService.streamEvents.mockRejectedValue(error);
await controller.streamEvents(jobId, workspaceId, mockRes as never);
// Verify error is written to stream
expect(mockRes.write).toHaveBeenCalledWith(
expect.stringContaining("Job not found")
);
expect(mockRes.end).toHaveBeenCalled();
});
});
});

View File

@@ -1,4 +1,5 @@
import { Controller, Get, Post, Body, Param, Query, UseGuards } from "@nestjs/common";
import { Controller, Get, Post, Body, Param, Query, UseGuards, Res } from "@nestjs/common";
import { Response } from "express";
import { RunnerJobsService } from "./runner-jobs.service";
import { CreateJobDto, QueryJobsDto } from "./dto";
import { AuthGuard } from "../auth/guards/auth.guard";
@@ -87,4 +88,33 @@ export class RunnerJobsController {
) {
return this.runnerJobsService.retry(id, workspaceId);
}
/**
* GET /api/runner-jobs/:id/events/stream
* Stream job events via Server-Sent Events (SSE)
* Requires: Any workspace member
*/
@Get(":id/events/stream")
@RequirePermission(Permission.WORKSPACE_ANY)
async streamEvents(
@Param("id") id: string,
@Workspace() workspaceId: string,
@Res() res: Response
): Promise<void> {
// Set SSE headers
res.setHeader("Content-Type", "text/event-stream");
res.setHeader("Cache-Control", "no-cache");
res.setHeader("Connection", "keep-alive");
res.setHeader("X-Accel-Buffering", "no"); // Disable nginx buffering
try {
await this.runnerJobsService.streamEvents(id, workspaceId, res);
} catch (error: unknown) {
// Write error to stream
const errorMessage = error instanceof Error ? error.message : String(error);
res.write(`event: error\n`);
res.write(`data: ${JSON.stringify({ error: errorMessage })}\n\n`);
res.end();
}
}
}

View File

@@ -20,6 +20,9 @@ describe("RunnerJobsService", () => {
findUnique: vi.fn(),
update: vi.fn(),
},
jobEvent: {
findMany: vi.fn(),
},
};
const mockBullMqService = {
@@ -524,4 +527,113 @@ describe("RunnerJobsService", () => {
await expect(service.retry(jobId, workspaceId)).rejects.toThrow("Can only retry failed jobs");
});
});
describe("streamEvents", () => {
it("should stream events and close when job completes", async () => {
const jobId = "job-123";
const workspaceId = "workspace-123";
// Mock response object
const mockRes = {
write: vi.fn(),
end: vi.fn(),
on: vi.fn(),
writableEnded: false,
setHeader: vi.fn(),
};
// Mock initial job lookup
mockPrismaService.runnerJob.findUnique
.mockResolvedValueOnce({
id: jobId,
status: RunnerJobStatus.RUNNING,
})
.mockResolvedValueOnce({
id: jobId,
status: RunnerJobStatus.COMPLETED, // Second call for status check
});
// Mock events
const mockEvents = [
{
id: "event-1",
jobId,
stepId: "step-1",
type: "step.started",
timestamp: new Date(),
payload: { name: "Running tests", phase: "validation" },
},
];
mockPrismaService.jobEvent.findMany.mockResolvedValue(mockEvents);
// Execute streamEvents
await service.streamEvents(jobId, workspaceId, mockRes as never);
// Verify job lookup was called
expect(prisma.runnerJob.findUnique).toHaveBeenCalledWith({
where: { id: jobId, workspaceId },
select: { id: true, status: true },
});
// Verify events were written
expect(mockRes.write).toHaveBeenCalledWith(expect.stringContaining("step.started"));
expect(mockRes.write).toHaveBeenCalledWith(expect.stringContaining("stream.complete"));
expect(mockRes.end).toHaveBeenCalled();
});
it("should throw NotFoundException if job not found", async () => {
const jobId = "nonexistent-job";
const workspaceId = "workspace-123";
const mockRes = {
write: vi.fn(),
end: vi.fn(),
on: vi.fn(),
};
mockPrismaService.runnerJob.findUnique.mockResolvedValue(null);
await expect(service.streamEvents(jobId, workspaceId, mockRes as never)).rejects.toThrow(
NotFoundException
);
await expect(service.streamEvents(jobId, workspaceId, mockRes as never)).rejects.toThrow(
`RunnerJob with ID ${jobId} not found`
);
});
it("should clean up interval on connection close", async () => {
const jobId = "job-123";
const workspaceId = "workspace-123";
let closeHandler: (() => void) | null = null;
const mockRes = {
write: vi.fn(),
end: vi.fn(),
on: vi.fn((event: string, handler: () => void) => {
if (event === "close") {
closeHandler = handler;
// Immediately trigger close to break the loop
setTimeout(() => handler(), 10);
}
}),
writableEnded: false,
};
mockPrismaService.runnerJob.findUnique.mockResolvedValue({
id: jobId,
status: RunnerJobStatus.RUNNING,
});
mockPrismaService.jobEvent.findMany.mockResolvedValue([]);
// Start streaming and wait for it to complete
await service.streamEvents(jobId, workspaceId, mockRes as never);
// Verify cleanup
expect(mockRes.on).toHaveBeenCalledWith("close", expect.any(Function));
expect(mockRes.end).toHaveBeenCalled();
});
});
});

View File

@@ -1,5 +1,6 @@
import { Injectable, NotFoundException, BadRequestException } from "@nestjs/common";
import { Prisma, RunnerJobStatus } from "@prisma/client";
import { Response } from "express";
import { PrismaService } from "../prisma/prisma.service";
import { BullMqService } from "../bullmq/bullmq.service";
import { QUEUE_NAMES } from "../bullmq/queues";
@@ -228,4 +229,99 @@ export class RunnerJobsService {
return newJob;
}
/**
* Stream job events via Server-Sent Events (SSE)
* Polls database for new events and sends them to the client
*/
async streamEvents(id: string, workspaceId: string, res: Response): Promise<void> {
// Verify job exists
const job = await this.prisma.runnerJob.findUnique({
where: { id, workspaceId },
select: { id: true, status: true },
});
if (!job) {
throw new NotFoundException(`RunnerJob with ID ${id} not found`);
}
// Track last event timestamp for polling
let lastEventTime = new Date(0); // Start from epoch
let isActive = true;
// Set up connection cleanup
res.on("close", () => {
isActive = false;
});
// Keep-alive ping interval (every 15 seconds)
const keepAliveInterval = setInterval(() => {
if (isActive) {
res.write(": ping\n\n");
}
}, 15000);
try {
// Poll for events until connection closes or job completes
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
while (isActive) {
// Fetch new events since last poll
const events = await this.prisma.jobEvent.findMany({
where: {
jobId: id,
timestamp: { gt: lastEventTime },
},
orderBy: { timestamp: "asc" },
});
// Send each event
for (const event of events) {
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
if (!isActive) break;
// Write event in SSE format
res.write(`event: ${event.type}\n`);
res.write(
`data: ${JSON.stringify({
stepId: event.stepId,
...(event.payload as object),
})}\n\n`
);
// Update last event time
if (event.timestamp > lastEventTime) {
lastEventTime = event.timestamp;
}
}
// Check if job has completed
const currentJob = await this.prisma.runnerJob.findUnique({
where: { id },
select: { status: true },
});
if (currentJob) {
if (
currentJob.status === RunnerJobStatus.COMPLETED ||
currentJob.status === RunnerJobStatus.FAILED ||
currentJob.status === RunnerJobStatus.CANCELLED
) {
// Job is done, send completion signal and end stream
res.write("event: stream.complete\n");
res.write(`data: ${JSON.stringify({ status: currentJob.status })}\n\n`);
break;
}
}
// Wait before next poll (500ms)
await new Promise((resolve) => setTimeout(resolve, 500));
}
} finally {
// Clean up
clearInterval(keepAliveInterval);
if (!res.writableEnded) {
res.end();
}
}
}
}