Initialize work order management system with database schema, API handlers, web client, and Docker configuration.

internal/api/handlers/accounting.go

@@ -0,0 +1,50 @@
+package handlers
+
+import (
+	"net/http"
+
+	"github.com/jmoiron/sqlx"
+	"workorders/internal/model"
+)
+
+type AccountingHandler struct{ db *sqlx.DB }
+
+func NewAccountingHandler(db *sqlx.DB) *AccountingHandler { return &AccountingHandler{db: db} }
+
+func (h *AccountingHandler) Get(w http.ResponseWriter, r *http.Request) {
+	woID, err := intParam(r, "id")
+	if err != nil {
+		respondError(w, http.StatusBadRequest, "invalid id")
+		return
+	}
+	var codes []model.AccountingCode
+	h.db.Select(&codes, `SELECT * FROM wo_accounting WHERE wo_id=@p1`, woID)
+	respond(w, http.StatusOK, codes)
+}
+
+func (h *AccountingHandler) Upsert(w http.ResponseWriter, r *http.Request) {
+	woID, err := intParam(r, "id")
+	if err != nil {
+		respondError(w, http.StatusBadRequest, "invalid id")
+		return
+	}
+	var codes []model.AccountingCode
+	if err := decode(r, &codes); err != nil {
+		respondError(w, http.StatusBadRequest, "invalid body")
+		return
+	}
+	for _, c := range codes {
+		h.db.Exec(`
+			MERGE wo_accounting AS t
+			USING (SELECT @p1 AS wo_id, @p2 AS code_type) AS s
+			ON t.wo_id=s.wo_id AND t.code_type=s.code_type
+			WHEN MATCHED THEN UPDATE SET code_value=@p3,description=@p4
+			WHEN NOT MATCHED THEN INSERT (wo_id,code_type,code_value,description)
+			  VALUES (@p1,@p2,@p3,@p4);`,
+			woID, c.CodeType, c.CodeValue, c.Description,
+		)
+	}
+	var result []model.AccountingCode
+	h.db.Select(&result, `SELECT * FROM wo_accounting WHERE wo_id=@p1`, woID)
+	respond(w, http.StatusOK, result)
+}