monorepo/cloud/maplefile-backend/internal/interface/http/collection/update.go

136 lines
4.1 KiB
Go

// monorepo/cloud/backend/internal/maplefile/interface/http/collection/update.go
package collection
import (
"bytes"
"context"
"encoding/json"
"errors"
"io"
"net/http"
"go.uber.org/zap"
"github.com/gocql/gocql"
"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/config"
"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/interface/http/middleware"
svc_collection "codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/service/collection"
"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/pkg/httperror"
)
type UpdateCollectionHTTPHandler struct {
config *config.Configuration
logger *zap.Logger
service svc_collection.UpdateCollectionService
middleware middleware.Middleware
}
func NewUpdateCollectionHTTPHandler(
config *config.Configuration,
logger *zap.Logger,
service svc_collection.UpdateCollectionService,
middleware middleware.Middleware,
) *UpdateCollectionHTTPHandler {
logger = logger.Named("UpdateCollectionHTTPHandler")
return &UpdateCollectionHTTPHandler{
config: config,
logger: logger,
service: service,
middleware: middleware,
}
}
func (*UpdateCollectionHTTPHandler) Pattern() string {
return "PUT /api/v1/collections/{id}"
}
func (h *UpdateCollectionHTTPHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
// Apply middleware before handling the request
h.middleware.Attach(h.Execute)(w, req)
}
func (h *UpdateCollectionHTTPHandler) unmarshalRequest(
ctx context.Context,
r *http.Request,
collectionID gocql.UUID,
) (*svc_collection.UpdateCollectionRequestDTO, error) {
// Initialize our structure which will store the parsed request data
var requestData svc_collection.UpdateCollectionRequestDTO
defer r.Body.Close()
var rawJSON bytes.Buffer
teeReader := io.TeeReader(r.Body, &rawJSON) // TeeReader allows you to read the JSON and capture it
// Read the JSON string and convert it into our golang struct
err := json.NewDecoder(teeReader).Decode(&requestData)
if err != nil {
h.logger.Error("decoding error",
zap.Any("err", err),
zap.String("json", rawJSON.String()),
)
return nil, httperror.NewForSingleField(http.StatusBadRequest, "non_field_error", "payload structure is wrong")
}
// Set the collection ID from the URL parameter
requestData.ID = collectionID
return &requestData, nil
}
func (h *UpdateCollectionHTTPHandler) Execute(w http.ResponseWriter, r *http.Request) {
// Set response content type
w.Header().Set("Content-Type", "application/json")
ctx := r.Context()
// Extract collection ID from the URL path parameter
// This assumes the router is net/http (Go 1.22+) and the pattern was registered like "PUT /path/{id}"
collectionIDStr := r.PathValue("id")
if collectionIDStr == "" {
h.logger.Warn("collection_id not found in path parameters or is empty",
zap.String("path", r.URL.Path),
zap.String("method", r.Method),
)
httperror.RespondWithError(w, r, httperror.NewForBadRequestWithSingleField("collection_id", "Collection ID is required"))
return
}
// Convert string ID to ObjectID
collectionID, err := gocql.ParseUUID(collectionIDStr)
if err != nil {
h.logger.Error("invalid collection ID format",
zap.String("collection_id", collectionIDStr),
zap.Error(err))
httperror.RespondWithError(w, r, httperror.NewForBadRequestWithSingleField("collection_id", "Invalid collection ID format"))
return
}
req, err := h.unmarshalRequest(ctx, r, collectionID)
if err != nil {
httperror.RespondWithError(w, r, err)
return
}
// Call service
resp, err := h.service.Execute(ctx, req)
if err != nil {
httperror.RespondWithError(w, r, err)
return
}
// Encode response
if resp != nil {
if err := json.NewEncoder(w).Encode(resp); err != nil {
h.logger.Error("failed to encode response",
zap.Any("error", err))
httperror.RespondWithError(w, r, err)
return
}
} else {
err := errors.New("transaction completed with no result") // Clarified error message
h.logger.Error("transaction completed with no result", zap.Any("request_payload", req))
httperror.RespondWithError(w, r, err)
return
}
}