Backend (internal/llm): backend-agnostic LLMClient interface + factory
with vLLM (OpenAI-compat) and Ollama (native) clients, each Complete +
Stream. prompts.go holds the checkpoint and Ask Petal templates;
checkpoint.go salvages JSON from model output (brace-matched), enforces a
per-doc 30s RateLimiter, and truncates the doc to a latency cap.
internal/suggestions: POST /api/docs/:id/check runs a checkpoint and
replaces the doc's pending suggestions in one tx (accepted/rejected kept
as history); GET /api/docs/:id/suggestions lists pending;
POST /api/suggestions/:id/{accept,dismiss} resolves one. Throttled checks
return the current set rather than erroring.
Frontend: useCheckpoint (4s debounce, loads existing on open, stale-guard
tokens); SuggestionHighlight renders ProseMirror decorations re-anchored
by the `original` string on every doc change (not stored marks), with
precise textblock-offset→PM-position mapping; SuggestionCard shows the
type tag + diff + explanation and applies the replacement in-editor on
accept; breathing rose checkpoint dot in the StatusBar; fade-float +
breathe animations.
Tests: llm parse/rate-limit/truncate; suggestions full flow + rate-limit
over httptest with a stub client. Smoke-tested end-to-end against a fake
vLLM endpoint (anchoring verified) and the LLM-unreachable 502 path.
Claude-Session: https://claude.ai/code/session_016Yr6jELuRc7hyzYLccQKZd
101 lines
2.9 KiB
Go
101 lines
2.9 KiB
Go
package main
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import (
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"errors"
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"io/fs"
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"log"
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"net/http"
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"strings"
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"github.com/go-chi/chi/v5"
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"github.com/go-chi/chi/v5/middleware"
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"gitea.parodia.dev/drwily/petal/internal/config"
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"gitea.parodia.dev/drwily/petal/internal/db"
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"gitea.parodia.dev/drwily/petal/internal/docs"
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"gitea.parodia.dev/drwily/petal/internal/llm"
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"gitea.parodia.dev/drwily/petal/internal/suggestions"
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"gitea.parodia.dev/drwily/petal/web"
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)
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func main() {
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cfg := config.Load()
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database, err := db.Open(cfg.DatabasePath)
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if err != nil {
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log.Fatalf("database: %v", err)
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}
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defer database.Close()
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log.Printf("database ready at %s", cfg.DatabasePath)
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r := chi.NewRouter()
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r.Use(middleware.RequestID)
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r.Use(middleware.RealIP)
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r.Use(middleware.Logger)
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r.Use(middleware.Recoverer)
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r.Route("/api", func(api chi.Router) {
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api.Get("/health", func(w http.ResponseWriter, _ *http.Request) {
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w.Header().Set("Content-Type", "application/json")
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_, _ = w.Write([]byte(`{"status":"ok"}`))
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})
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llmClient := llm.NewLLMClient(cfg)
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sug := suggestions.New(database, llmClient)
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// Document CRUD plus the doc-scoped checkpoint/list suggestion routes,
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// both under /api/docs.
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docsRouter := docs.New(database).Routes()
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sug.RegisterDocRoutes(docsRouter)
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api.Mount("/docs", docsRouter)
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// Per-suggestion actions (accept/dismiss) under /api/suggestions.
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api.Mount("/suggestions", sug.Routes())
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})
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// Everything else: serve the embedded SPA (with index.html fallback for client routing).
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r.NotFound(spaHandler())
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addr := ":" + cfg.Port
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log.Printf("petal listening on %s (LLM backend=%s)", addr, cfg.LLMBackend)
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if err := http.ListenAndServe(addr, r); err != nil {
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log.Fatalf("server error: %v", err)
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}
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}
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// spaHandler serves the embedded web/dist as a single-page app: static files
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// when they exist, falling back to index.html for unknown paths. If the
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// frontend hasn't been built yet, it returns a friendly dev hint instead.
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func spaHandler() http.HandlerFunc {
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sub, err := fs.Sub(web.DistFS, "dist")
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if err != nil {
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log.Fatalf("embed sub: %v", err)
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}
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if _, err := fs.Stat(sub, "index.html"); errors.Is(err, fs.ErrNotExist) {
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return func(w http.ResponseWriter, _ *http.Request) {
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w.Header().Set("Content-Type", "text/plain; charset=utf-8")
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w.WriteHeader(http.StatusOK)
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_, _ = w.Write([]byte("Petal backend is running, but the frontend isn't built yet.\n" +
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"Run `npm run build` in web/, or use `npm run dev` for the dev server on :5173.\n"))
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}
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}
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fileServer := http.FileServer(http.FS(sub))
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return func(w http.ResponseWriter, req *http.Request) {
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p := strings.TrimPrefix(req.URL.Path, "/")
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if p == "" {
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p = "index.html"
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}
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if _, err := fs.Stat(sub, p); errors.Is(err, fs.ErrNotExist) {
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// Unknown path → let the SPA router handle it.
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req2 := new(http.Request)
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*req2 = *req
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req2.URL.Path = "/"
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fileServer.ServeHTTP(w, req2)
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return
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}
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fileServer.ServeHTTP(w, req)
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}
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}
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