Initial scaffold: certificate control plane v0.1.0

internal/api/handler/issuers.go

@@ -0,0 +1,209 @@
+package handler
+
+import (
+	"encoding/json"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/shankar0123/certctl/internal/api/middleware"
+	"github.com/shankar0123/certctl/internal/domain"
+)
+
+// IssuerService defines the service interface for issuer operations.
+type IssuerService interface {
+	ListIssuers(page, perPage int) ([]domain.Issuer, int64, error)
+	GetIssuer(id string) (*domain.Issuer, error)
+	CreateIssuer(issuer domain.Issuer) (*domain.Issuer, error)
+	UpdateIssuer(id string, issuer domain.Issuer) (*domain.Issuer, error)
+	DeleteIssuer(id string) error
+	TestConnection(id string) error
+}
+
+// IssuerHandler handles HTTP requests for issuer operations.
+type IssuerHandler struct {
+	svc IssuerService
+}
+
+// NewIssuerHandler creates a new IssuerHandler with a service dependency.
+func NewIssuerHandler(svc IssuerService) IssuerHandler {
+	return IssuerHandler{svc: svc}
+}
+
+// ListIssuers lists all configured issuers.
+// GET /api/v1/issuers?page=1&per_page=50
+func (h IssuerHandler) ListIssuers(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		Error(w, http.StatusMethodNotAllowed, "Method not allowed")
+		return
+	}
+
+	requestID := middleware.GetRequestID(r.Context())
+
+	page := 1
+	perPage := 50
+	query := r.URL.Query()
+	if p := query.Get("page"); p != "" {
+		if parsed, err := strconv.Atoi(p); err == nil && parsed > 0 {
+			page = parsed
+		}
+	}
+	if pp := query.Get("per_page"); pp != "" {
+		if parsed, err := strconv.Atoi(pp); err == nil && parsed > 0 && parsed <= 500 {
+			perPage = parsed
+		}
+	}
+
+	issuers, total, err := h.svc.ListIssuers(page, perPage)
+	if err != nil {
+		ErrorWithRequestID(w, http.StatusInternalServerError, "Failed to list issuers", requestID)
+		return
+	}
+
+	response := PagedResponse{
+		Data:    issuers,
+		Total:   total,
+		Page:    page,
+		PerPage: perPage,
+	}
+
+	JSON(w, http.StatusOK, response)
+}
+
+// GetIssuer retrieves a single issuer by ID.
+// GET /api/v1/issuers/{id}
+func (h IssuerHandler) GetIssuer(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		Error(w, http.StatusMethodNotAllowed, "Method not allowed")
+		return
+	}
+
+	requestID := middleware.GetRequestID(r.Context())
+
+	id := strings.TrimPrefix(r.URL.Path, "/api/v1/issuers/")
+	if id == "" || strings.Contains(id, "/") {
+		ErrorWithRequestID(w, http.StatusBadRequest, "Issuer ID is required", requestID)
+		return
+	}
+
+	issuer, err := h.svc.GetIssuer(id)
+	if err != nil {
+		ErrorWithRequestID(w, http.StatusNotFound, "Issuer not found", requestID)
+		return
+	}
+
+	JSON(w, http.StatusOK, issuer)
+}
+
+// CreateIssuer creates a new issuer configuration.
+// POST /api/v1/issuers
+func (h IssuerHandler) CreateIssuer(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		Error(w, http.StatusMethodNotAllowed, "Method not allowed")
+		return
+	}
+
+	requestID := middleware.GetRequestID(r.Context())
+
+	var issuer domain.Issuer
+	if err := json.NewDecoder(r.Body).Decode(&issuer); err != nil {
+		ErrorWithRequestID(w, http.StatusBadRequest, "Invalid request body", requestID)
+		return
+	}
+
+	created, err := h.svc.CreateIssuer(issuer)
+	if err != nil {
+		ErrorWithRequestID(w, http.StatusInternalServerError, "Failed to create issuer", requestID)
+		return
+	}
+
+	JSON(w, http.StatusCreated, created)
+}
+
+// UpdateIssuer updates an existing issuer configuration.
+// PUT /api/v1/issuers/{id}
+func (h IssuerHandler) UpdateIssuer(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPut {
+		Error(w, http.StatusMethodNotAllowed, "Method not allowed")
+		return
+	}
+
+	requestID := middleware.GetRequestID(r.Context())
+
+	id := strings.TrimPrefix(r.URL.Path, "/api/v1/issuers/")
+	parts := strings.Split(id, "/")
+	if len(parts) == 0 || parts[0] == "" {
+		ErrorWithRequestID(w, http.StatusBadRequest, "Issuer ID is required", requestID)
+		return
+	}
+	id = parts[0]
+
+	var issuer domain.Issuer
+	if err := json.NewDecoder(r.Body).Decode(&issuer); err != nil {
+		ErrorWithRequestID(w, http.StatusBadRequest, "Invalid request body", requestID)
+		return
+	}
+
+	updated, err := h.svc.UpdateIssuer(id, issuer)
+	if err != nil {
+		ErrorWithRequestID(w, http.StatusInternalServerError, "Failed to update issuer", requestID)
+		return
+	}
+
+	JSON(w, http.StatusOK, updated)
+}
+
+// DeleteIssuer deletes an issuer configuration.
+// DELETE /api/v1/issuers/{id}
+func (h IssuerHandler) DeleteIssuer(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodDelete {
+		Error(w, http.StatusMethodNotAllowed, "Method not allowed")
+		return
+	}
+
+	requestID := middleware.GetRequestID(r.Context())
+
+	id := strings.TrimPrefix(r.URL.Path, "/api/v1/issuers/")
+	if id == "" || strings.Contains(id, "/") {
+		ErrorWithRequestID(w, http.StatusBadRequest, "Issuer ID is required", requestID)
+		return
+	}
+
+	if err := h.svc.DeleteIssuer(id); err != nil {
+		ErrorWithRequestID(w, http.StatusInternalServerError, "Failed to delete issuer", requestID)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// TestConnection tests the connection to an issuer.
+// POST /api/v1/issuers/{id}/test
+func (h IssuerHandler) TestConnection(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		Error(w, http.StatusMethodNotAllowed, "Method not allowed")
+		return
+	}
+
+	requestID := middleware.GetRequestID(r.Context())
+
+	// Extract issuer ID from path /api/v1/issuers/{id}/test
+	path := strings.TrimPrefix(r.URL.Path, "/api/v1/issuers/")
+	parts := strings.Split(path, "/")
+	if len(parts) < 2 || parts[0] == "" {
+		ErrorWithRequestID(w, http.StatusBadRequest, "Issuer ID is required", requestID)
+		return
+	}
+	issuerID := parts[0]
+
+	if err := h.svc.TestConnection(issuerID); err != nil {
+		ErrorWithRequestID(w, http.StatusInternalServerError, "Connection test failed", requestID)
+		return
+	}
+
+	response := map[string]string{
+		"status": "connection_successful",
+	}
+
+	JSON(w, http.StatusOK, response)
+}