Refactor service

2026-10-30 17:21:58 +00:00
parent fe5a2a0091
commit 652d41ca8f
7 changed files with 1975 additions and 68 deletions
@@ -0,0 +1,187 @@
+package service
+
+import (
+	"database/sql"
+	"encoding/json/v2"
+	"errors"
+	"log/slog"
+	"net/http"
+)
+
+func (svc *Service) listConversations(w http.ResponseWriter, r *http.Request) {
+	var (
+		ctx = r.Context()
+		log = ctx.Value(logKey).(*slog.Logger)
+	)
+
+	rows, err := svc.dbr.SelectConversationsUserId(ctx, "default")
+	if err != nil {
+		log.ErrorContext(
+			ctx, "failed to list conversations",
+			slog.Any("error", err),
+		)
+		http.Error(
+			w,
+			http.StatusText(http.StatusInternalServerError),
+			http.StatusInternalServerError,
+		)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	if err := json.MarshalWrite(w, rows); err != nil {
+		log.ErrorContext(
+			ctx, "failed to encode conversations response",
+			slog.Any("error", err),
+		)
+	}
+}
+
+func (svc *Service) createConversation(w http.ResponseWriter, r *http.Request) {
+	var (
+		ctx = r.Context()
+		log = ctx.Value(logKey).(*slog.Logger)
+		req struct {
+			Title         *string `json:"title"`
+			SystemMessage *string `json:"system_message"`
+		}
+	)
+
+	r.Body = http.MaxBytesReader(w, r.Body, 32<<20)
+	if err := json.UnmarshalRead(r.Body, &req); err != nil {
+		log.ErrorContext(
+			ctx, "failed to decode request",
+			slog.Any("error", err),
+		)
+		http.Error(w, "invalid request", http.StatusBadRequest)
+		return
+	}
+
+	system := svc.cfg.SystemMessage
+	if req.SystemMessage != nil {
+		system = *req.SystemMessage
+	}
+	saved, _, err := svc.newConversation(
+		ctx, "default", req.Title, system,
+	)
+	if err != nil {
+		log.ErrorContext(
+			ctx, "failed to create conversation",
+			slog.Any("error", err),
+		)
+		http.Error(
+			w,
+			http.StatusText(http.StatusInternalServerError),
+			http.StatusInternalServerError,
+		)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusCreated)
+	if err := json.MarshalWrite(w, saved); err != nil {
+		log.ErrorContext(
+			ctx, "failed to encode conversation response",
+			slog.Any("error", err),
+		)
+	}
+}
+
+func (svc *Service) getConversationHandler(
+	w http.ResponseWriter,
+	r *http.Request,
+) {
+	var (
+		ctx = r.Context()
+		log = ctx.Value(logKey).(*slog.Logger)
+	)
+
+	saved, err := svc.dbr.SelectConversationIdUserId(
+		ctx, r.PathValue("id"), "default",
+	)
+	if errors.Is(err, sql.ErrNoRows) {
+		http.NotFound(w, r)
+		return
+	}
+	if err != nil {
+		log.ErrorContext(
+			ctx, "failed to load conversation",
+			slog.Any("error", err),
+		)
+		http.Error(
+			w,
+			http.StatusText(http.StatusInternalServerError),
+			http.StatusInternalServerError,
+		)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	if err := json.MarshalWrite(w, saved); err != nil {
+		log.ErrorContext(
+			ctx, "failed to encode conversation response",
+			slog.Any("error", err),
+		)
+	}
+}
+
+func (svc *Service) deleteConversation(w http.ResponseWriter, r *http.Request) {
+	var (
+		ctx = r.Context()
+		log = ctx.Value(logKey).(*slog.Logger)
+		id  = r.PathValue("id")
+	)
+
+	if _, err := svc.dbr.SelectConversationIdUserId(
+		ctx, id, "default",
+	); err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			http.NotFound(w, r)
+			return
+		}
+		log.ErrorContext(
+			ctx, "failed to load conversation",
+			slog.Any("error", err),
+		)
+		http.Error(
+			w,
+			http.StatusText(http.StatusInternalServerError),
+			http.StatusInternalServerError,
+		)
+		return
+	}
+	c, err := svc.getConversation(ctx, id)
+	if errors.Is(err, sql.ErrNoRows) {
+		http.NotFound(w, r)
+		return
+	}
+	if err != nil {
+		log.ErrorContext(
+			ctx, "failed to get conversation handle",
+			slog.Any("error", err),
+		)
+		http.Error(
+			w,
+			http.StatusText(http.StatusInternalServerError),
+			http.StatusInternalServerError,
+		)
+		return
+	}
+	if err := c.Delete(ctx); err != nil {
+		log.ErrorContext(
+			ctx, "failed to delete conversation",
+			slog.Any("error", err),
+		)
+		http.Error(
+			w,
+			http.StatusText(http.StatusInternalServerError),
+			http.StatusInternalServerError,
+		)
+		return
+	}
+
+	svc.mu.Lock()
+	delete(svc.conversations, id)
+	svc.mu.Unlock()
+	w.WriteHeader(http.StatusNoContent)
+}