feat(handler): 暴露公开查询 HTTP API（T-210）

handler/public.go

@@ -0,0 +1,95 @@
+package handler
+
+import (
+	"net/http"
+	"strconv"
+
+	"chis_osi/osi"
+)
+
+// PublicHandler 暴露 OSI 公开查询类 HTTP 入口。
+type PublicHandler struct {
+	client *osi.Client
+}
+
+func NewPublicHandler(client *osi.Client) *PublicHandler {
+	return &PublicHandler{client: client}
+}
+
+// GridAddresses 处理 GET /api/dictionaries/grid-addresses?parentCode=..&pageNo=..&operateUser=..
+func (h *PublicHandler) GridAddresses(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeJSONError(w, http.StatusMethodNotAllowed, "only GET is supported")
+		return
+	}
+	q := r.URL.Query()
+	pageNo, ok := parseOptionalInt(w, q.Get("pageNo"), "pageNo")
+	if !ok {
+		return
+	}
+	_, result, err := h.client.QueryGridAddress(r.Context(), osi.GridAddressQuery{
+		ParentCode:  q.Get("parentCode"),
+		PageNo:      pageNo,
+		OperateUser: q.Get("operateUser"),
+	})
+	writeRawOrError(w, result, err)
+}
+
+// Doctors 处理 GET /api/dictionaries/doctors?manaUnitId=..&operateUser=..
+func (h *PublicHandler) Doctors(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeJSONError(w, http.StatusMethodNotAllowed, "only GET is supported")
+		return
+	}
+	q := r.URL.Query()
+	_, result, err := h.client.QueryDoctors(r.Context(), osi.DoctorQuery{
+		ManaUnitID:  q.Get("manaUnitId"),
+		OperateUser: q.Get("operateUser"),
+	})
+	writeRawOrError(w, result, err)
+}
+
+// Drugs 处理 GET /api/dictionaries/drugs?ypmc=..&pym=..&pageNo=..
+func (h *PublicHandler) Drugs(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeJSONError(w, http.StatusMethodNotAllowed, "only GET is supported")
+		return
+	}
+	q := r.URL.Query()
+	pageNo, ok := parseOptionalInt(w, q.Get("pageNo"), "pageNo")
+	if !ok {
+		return
+	}
+	_, result, err := h.client.QueryDrugs(r.Context(), osi.DrugQuery{
+		PageNo: pageNo,
+		YPMC:   q.Get("ypmc"),
+		PYM:    q.Get("pym"),
+	})
+	writeRawOrError(w, result, err)
+}
+
+// Orgs 处理 GET /api/dictionaries/orgs?organizCode=..&parentId=..
+func (h *PublicHandler) Orgs(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeJSONError(w, http.StatusMethodNotAllowed, "only GET is supported")
+		return
+	}
+	q := r.URL.Query()
+	_, result, err := h.client.QueryOrgs(r.Context(), osi.OrgQuery{
+		OrganizCode: q.Get("organizCode"),
+		ParentID:    q.Get("parentId"),
+	})
+	writeRawOrError(w, result, err)
+}
+
+func parseOptionalInt(w http.ResponseWriter, raw string, name string) (int, bool) {
+	if raw == "" {
+		return 0, true
+	}
+	value, err := strconv.Atoi(raw)
+	if err != nil {
+		writeJSONError(w, http.StatusBadRequest, name+" must be an integer")
+		return 0, false
+	}
+	return value, true
+}