Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplefile-backend/internal/interface/http/collection/remove_member.go

@@ -0,0 +1,148 @@
+// monorepo/cloud/backend/internal/maplefile/interface/http/collection/remove_member.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 RemoveMemberHTTPHandler struct {
+	config     *config.Configuration
+	logger     *zap.Logger
+	service    svc_collection.RemoveMemberService
+	middleware middleware.Middleware
+}
+
+func NewRemoveMemberHTTPHandler(
+	config *config.Configuration,
+	logger *zap.Logger,
+	service svc_collection.RemoveMemberService,
+	middleware middleware.Middleware,
+) *RemoveMemberHTTPHandler {
+	logger = logger.Named("RemoveMemberHTTPHandler")
+	return &RemoveMemberHTTPHandler{
+		config:     config,
+		logger:     logger,
+		service:    service,
+		middleware: middleware,
+	}
+}
+
+func (*RemoveMemberHTTPHandler) Pattern() string {
+	return "DELETE /api/v1/collections/{id}/members/{user_id}"
+}
+
+func (h *RemoveMemberHTTPHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	// Apply middleware before handling the request
+	h.middleware.Attach(h.Execute)(w, req)
+}
+
+func (h *RemoveMemberHTTPHandler) unmarshalRequest(
+	ctx context.Context,
+	r *http.Request,
+	collectionID gocql.UUID,
+	recipientID gocql.UUID,
+) (*svc_collection.RemoveMemberRequestDTO, error) {
+	// Initialize our structure which will store the parsed request data
+	var requestData svc_collection.RemoveMemberRequestDTO
+
+	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 and recipient ID from the URL parameters
+	requestData.CollectionID = collectionID
+	requestData.RecipientID = recipientID
+
+	return &requestData, nil
+}
+
+func (h *RemoveMemberHTTPHandler) 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 URL parameters
+	collectionIDStr := r.PathValue("id")
+	if collectionIDStr == "" {
+		httperror.RespondWithError(w, r, httperror.NewForBadRequestWithSingleField("collection_id", "Collection ID is required"))
+		return
+	}
+
+	// Extract user ID from URL parameters
+	userIDStr := r.PathValue("user_id")
+	if userIDStr == "" {
+		httperror.RespondWithError(w, r, httperror.NewForBadRequestWithSingleField("user_id", "User ID is required"))
+		return
+	}
+
+	// Convert collection ID string to UUID
+	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
+	}
+
+	// Convert user ID string to UUID
+	userID, err := gocql.ParseUUID(userIDStr)
+	if err != nil {
+		h.logger.Error("invalid user ID format",
+			zap.String("user_id", userIDStr),
+			zap.Error(err))
+		httperror.RespondWithError(w, r, httperror.NewForBadRequestWithSingleField("user_id", "Invalid user ID format"))
+		return
+	}
+
+	req, err := h.unmarshalRequest(ctx, r, collectionID, userID)
+	if err != nil {
+		httperror.RespondWithError(w, r, err)
+		return
+	}
+
+	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("no result")
+		httperror.RespondWithError(w, r, err)
+		return
+	}
+}