refactor platform logic modules

backend/api/internal/logic/platform/fin/fin.go

@@ -0,0 +1,68 @@
+package fin
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"io"
+
+	"git.apinb.com/bsm-sdk/core/errcode"
+	"git.apinb.com/bsm-sdk/core/infra"
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/logic/common"
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
+	"github.com/gin-gonic/gin"
+)
+
+func FinSettlementHandlers() (gin.HandlerFunc, gin.HandlerFunc, gin.HandlerFunc, gin.HandlerFunc) {
+	fields := []string{"settlement_no", "subject_type", "subject_id", "period_start", "period_end"}
+	return func(ctx *gin.Context) { common.ListResource(ctx, &models.FinSettlement{}) },
+		func(ctx *gin.Context) {
+			if err := rewriteSettlementSubject(ctx); err != nil {
+				infra.Response.Error(ctx, errcode.ErrInvalidArgument)
+				return
+			}
+			_, create, _, _ := common.ResourceHandlers(&models.FinSettlement{}, fields, fields)
+			create(ctx)
+		},
+		func(ctx *gin.Context) { common.GetResource(ctx, &models.FinSettlement{}) },
+		func(ctx *gin.Context) {
+			if err := rewriteSettlementSubject(ctx); err != nil {
+				infra.Response.Error(ctx, errcode.ErrInvalidArgument)
+				return
+			}
+			_, _, _, update := common.ResourceHandlers(&models.FinSettlement{}, fields, fields)
+			update(ctx)
+		}
+}
+
+func rewriteSettlementSubject(ctx *gin.Context) error {
+	var input map[string]any
+	if err := ctx.ShouldBindJSON(&input); err != nil {
+		return err
+	}
+	subjectType, _ := input["subject_type"].(string)
+	identity, _ := input["subject_identity"].(string)
+	var model any
+	switch subjectType {
+	case "gas", "gas_basic":
+		model = &models.GasBasic{}
+	case "delivery", "delivery_basic":
+		model = &models.DeliveryBasic{}
+	case "staff", "staff_account":
+		model = &models.StaffAccount{}
+	default:
+		return errors.New("invalid settlement subject")
+	}
+	id, err := common.ResolveIdentityID(model, identity, true)
+	if err != nil {
+		return err
+	}
+	delete(input, "subject_identity")
+	input["subject_id"] = id
+	encoded, err := json.Marshal(input)
+	if err != nil {
+		return err
+	}
+	ctx.Request.Body = io.NopCloser(bytes.NewReader(encoded))
+	return nil
+}