clickclack/docs/development.md
2026-05-08 08:53:47 +01:00

120 lines
4.4 KiB
Markdown

---
read_when:
- setting up a fresh checkout
- changing the gate (lint/typecheck/test/build/coverage)
- adding a new package or tool to the monorepo
---
# Development
The repo is a Go module plus a pnpm workspace. The Go binary embeds the
built SPA, so a full local build runs both toolchains.
## Prerequisites
- Go (matching `go.mod`).
- pnpm 11 (auto-managed via `corepack`).
- TypeScript runs via `tsgo` from `@typescript/native-preview` — installed
through pnpm.
- Lint/format use `oxlint` and `oxfmt` — installed through pnpm.
## First run
```sh
pnpm install
pnpm build # builds SPA + SDK and copies dist into apps/api
go run ./apps/api/cmd/clickclack serve
open http://localhost:8080
```
The dev fallback creates `Local Captain` as the first user, a `ClickClack`
workspace, and a `general` channel, so the SPA loads into a working state on
first hit.
## Two-process dev loop
```sh
# terminal 1
pnpm dev:api # go run ./apps/api/cmd/clickclack serve
# terminal 2
pnpm dev:web # vite dev server with API proxy
```
The Vite dev server proxies `/api` and `/api/realtime/ws` to `localhost:8080`.
## Scripts
| Command | What it does |
|------------------------|--------------|
| `pnpm build` | Builds the Svelte app and the SDK, then copies `apps/web/dist` into `apps/api/internal/webassets/dist`. |
| `pnpm check` | Full local gate: `go test ./...`, root/workspace `tsgo`, `oxlint`, and format checks. |
| `pnpm coverage` | Go tests with coverage; fails under 90% line coverage. |
| `pnpm dev:api` | `go run ./apps/api/cmd/clickclack serve`. |
| `pnpm dev:web` | `vite dev` for the SPA. |
| `pnpm fmt` | `gofmt` + `oxfmt` over Go and TS/Svelte. |
| `pnpm fmt:check` | CI-compatible formatting check with `gofmt -l` and `oxfmt --check`. |
| `pnpm lint` | `oxlint` over web, SDK, examples, and tests. |
| `goreleaser release --snapshot --clean` | Local release smoke test for all configured OS/arch targets. |
| `pnpm typecheck` | `tsgo --noEmit -p tsconfig.json` for root Playwright config/tests. |
| `pnpm test` | `go test ./... && pnpm build`. |
| `pnpm test:e2e` | Playwright suite in `tests/e2e`. |
## Layout
```
apps/
api/ # Go backend, single-binary entrypoint
cmd/clickclack/ # CLI main
internal/
auth/ # placeholder
config/ # flag/env/file resolution
httpapi/ # chi router, handlers, auth resolution
realtime/ # in-process pub/sub hub
store/ # store interface + types
sqlite/ # SQLite implementation, migrations, backup, export
webassets/ # go:embed for the built SPA
web/ # Svelte 5 SPA
packages/
protocol/ # OpenAPI spec, source of truth for the wire shape
sdk-ts/ # TypeScript SDK (generated types + friendly wrapper)
examples/
bot-ts/ # SDK usage example
infra/
migrations/sqlite # mirror of embedded migrations for tooling
migrations/postgres # placeholder for future Postgres support
tests/
e2e/ # Playwright tests
docs/ # this directory
```
## Adding a feature
1. Update `packages/protocol/openapi.yaml` first when the wire shape
changes. It is the contract.
2. Add the store method on `apps/api/internal/store/types.go` and implement
it in `apps/api/internal/store/sqlite`.
3. Wire the handler in `apps/api/internal/httpapi`.
4. Update the SDK in `packages/sdk-ts/src/index.ts` so TS clients have a
typed surface.
5. Update or add a `docs/features/<thing>.md`.
6. Run `pnpm check` and `pnpm coverage`.
## Testing
- `apps/api/internal/...` is the bulk of the test suite. Coverage gate is
90%.
- `tests/e2e/chat.spec.ts` exercises the SPA end-to-end via Playwright.
- The SDK has no test target yet — the bot example is the smoke test.
## Coding rules
- IDs are sortable ULID-style with semantic prefixes (`usr_`, `wsp_`, `chn_`,
`msg_`, `evt_`, `upl_`, `idn_`).
- Keep transactions short. Outbox events are inserted in the same tx as the
durable write that produced them.
- Avoid Postgres-only SQL. Postgres support is planned to live behind the
store interface, not by leaking dialect-specific SQL into handlers.
- TypeScript: no Svelte imports in `packages/sdk-ts`. The SDK must stay
framework-neutral.