feat(server): implement api changes

- 404 response
- price amount as string instead of number

internal/server/api.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"github.com/oapi-codegen/runtime/types"
+	"github.com/shopspring/decimal"
 	"time"
 
 	"github.com/gofiber/fiber/v2"
@@ -41,7 +42,7 @@ func (h *APIHandlers) ListTrainings(ctx context.Context, req ListTrainingsReques
 		pricing := make([]TrainingPrice, len(t.Pricing))
 		for idx, p := range t.Pricing {
 			pricing[idx] = TrainingPrice{
-				Amount:   p.Amount,
+				Amount:   p.Amount.String(),
 				Currency: p.Currency,
 				Type:     TrainingPriceType(p.Type),
 			}
@@ -61,8 +62,18 @@ func (h *APIHandlers) ListTrainings(ctx context.Context, req ListTrainingsReques
 func (h *APIHandlers) CreateTraining(ctx context.Context, req CreateTrainingRequestObject) (CreateTrainingResponseObject, error) {
 	pricing := make([]training.TrainingPrice, len(req.Body.Pricing))
 	for idx, p := range req.Body.Pricing {
+		amount, err := decimal.NewFromString(p.Amount)
+		if err != nil {
+			return CreateTraining400ApplicationProblemPlusJSONResponse{
+				InvalidInputErrorApplicationProblemPlusJSONResponse: InvalidInputErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusBadRequest,
+					Title:  "Invalid Input: Invalid amount",
+					Detail: err.Error(),
+				}}, nil
+		}
+
 		pricing[idx] = training.TrainingPrice{
-			Amount:   p.Amount,
+			Amount:   amount,
 			Currency: p.Currency,
 			Type:     training.TrainingPriceType(p.Type),
 		}
@@ -88,7 +99,7 @@ func (h *APIHandlers) CreateTraining(ctx context.Context, req CreateTrainingRequ
 	responsePricing := make([]TrainingPrice, len(t.Pricing))
 	for idx, p := range t.Pricing {
 		responsePricing[idx] = TrainingPrice{
-			Amount:   p.Amount,
+			Amount:   p.Amount.String(),
 			Currency: p.Currency,
 			Type:     TrainingPriceType(p.Type),
 		}
@@ -143,7 +154,7 @@ func (h *APIHandlers) GetTraining(ctx context.Context, req GetTrainingRequestObj
 	pricing := make([]TrainingPrice, len(t.Pricing))
 	for idx, p := range t.Pricing {
 		pricing[idx] = TrainingPrice{
-			Amount:   p.Amount,
+			Amount:   p.Amount.String(),
 			Currency: p.Currency,
 			Type:     TrainingPriceType(p.Type),
 		}
@@ -160,8 +171,18 @@ func (h *APIHandlers) GetTraining(ctx context.Context, req GetTrainingRequestObj
 func (h *APIHandlers) UpdateTraining(ctx context.Context, req UpdateTrainingRequestObject) (UpdateTrainingResponseObject, error) {
 	pricing := make([]training.TrainingPrice, len(req.Body.Pricing))
 	for idx, p := range req.Body.Pricing {
+		amount, err := decimal.NewFromString(p.Amount)
+		if err != nil {
+			return UpdateTraining400ApplicationProblemPlusJSONResponse{
+				InvalidInputErrorApplicationProblemPlusJSONResponse: InvalidInputErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusBadRequest,
+					Title:  "Invalid Input: Invalid amount",
+					Detail: err.Error(),
+				}}, nil
+		}
+
 		pricing[idx] = training.TrainingPrice{
-			Amount:   p.Amount,
+			Amount:   amount,
 			Currency: p.Currency,
 			Type:     training.TrainingPriceType(p.Type),
 		}
@@ -217,7 +238,7 @@ func (h *APIHandlers) ListTrainingDates(ctx context.Context, req ListTrainingDat
 			Address:   td.Address,
 			Capacity:  td.Capacity,
 			Price: Price{
-				Amount:   td.Price.Amount,
+				Amount:   td.Price.Amount.String(),
 				Currency: td.Price.Currency,
 			},
 		}
@@ -227,8 +248,18 @@ func (h *APIHandlers) ListTrainingDates(ctx context.Context, req ListTrainingDat
 }
 
 func (h *APIHandlers) CreateTrainingDate(ctx context.Context, req CreateTrainingDateRequestObject) (CreateTrainingDateResponseObject, error) {
+	amount, err := decimal.NewFromString(req.Body.Price.Amount)
+	if err != nil {
+		return CreateTrainingDate400ApplicationProblemPlusJSONResponse{
+			InvalidInputErrorApplicationProblemPlusJSONResponse: InvalidInputErrorApplicationProblemPlusJSONResponse{
+				Status: fiber.StatusBadRequest,
+				Title:  "Invalid Input: Invalid amount",
+				Detail: err.Error(),
+			}}, nil
+	}
+
 	price := money.Price{
-		Amount:   req.Body.Price.Amount,
+		Amount:   amount,
 		Currency: req.Body.Price.Currency,
 	}
 
@@ -273,7 +304,7 @@ func (h *APIHandlers) CreateTrainingDate(ctx context.Context, req CreateTraining
 		Address:   td.Address,
 		Capacity:  td.Capacity,
 		Price: Price{
-			Amount:   td.Price.Amount,
+			Amount:   td.Price.Amount.String(),
 			Currency: td.Price.Currency,
 		},
 	}, nil
@@ -326,15 +357,25 @@ func (h *APIHandlers) GetTrainingDate(ctx context.Context, req GetTrainingDateRe
 		Address:   td.Address,
 		Capacity:  td.Capacity,
 		Price: Price{
-			Amount:   td.Price.Amount,
+			Amount:   td.Price.Amount.String(),
 			Currency: td.Price.Currency,
 		},
 	}, nil
 }
 
 func (h *APIHandlers) UpdateTrainingDate(ctx context.Context, req UpdateTrainingDateRequestObject) (UpdateTrainingDateResponseObject, error) {
+	amount, err := decimal.NewFromString(req.Body.Price.Amount)
+	if err != nil {
+		return UpdateTrainingDate400ApplicationProblemPlusJSONResponse{
+			InvalidInputErrorApplicationProblemPlusJSONResponse: InvalidInputErrorApplicationProblemPlusJSONResponse{
+				Status: fiber.StatusBadRequest,
+				Title:  "Invalid Input: Invalid amount",
+				Detail: err.Error(),
+			}}, nil
+	}
+
 	price := money.Price{
-		Amount:   req.Body.Price.Amount,
+		Amount:   amount,
 		Currency: req.Body.Price.Currency,
 	}
 
@@ -380,7 +421,7 @@ func (h *APIHandlers) UpdateTrainingDate(ctx context.Context, req UpdateTraining
 		Address:   td.Address,
 		Capacity:  td.Capacity,
 		Price: Price{
-			Amount:   td.Price.Amount,
+			Amount:   td.Price.Amount.String(),
 			Currency: td.Price.Currency,
 		},
 	}, nil
@@ -422,7 +463,7 @@ func (h *APIHandlers) ListAllUpcomingTrainingDates(ctx context.Context, req List
 				Address:   td.Address,
 				Capacity:  td.Capacity,
 				Price: Price{
-					Amount:   td.Price.Amount,
+					Amount:   td.Price.Amount.String(),
 					Currency: td.Price.Currency,
 				},
 			}
@@ -455,7 +496,7 @@ func (h *APIHandlers) ListTrainingUpcomingDates(ctx context.Context, req ListTra
 			Address:   td.Address,
 			Capacity:  td.Capacity,
 			Price: Price{
-				Amount:   td.Price.Amount,
+				Amount:   td.Price.Amount.String(),
 				Currency: td.Price.Currency,
 			},
 		}
@@ -487,11 +528,55 @@ func (h *APIHandlers) ListTrainingDateAttendees(ctx context.Context, req ListTra
 }
 
 func (h *APIHandlers) CreateTrainingDateAttendee(ctx context.Context, req CreateTrainingDateAttendeeRequestObject) (CreateTrainingDateAttendeeResponseObject, error) {
-	ta := training.TrainingDateAttendee{
+	_, err := h.trainingRepository.FindByID(req.TrainingID)
-		Name: req.Body.Name,
+	if err != nil {
+		if errors.Is(err, training.ErrTrainingNotFound) {
+			return CreateTrainingDateAttendee404ApplicationProblemPlusJSONResponse{
+				NotFoundErrorApplicationProblemPlusJSONResponse: NotFoundErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusNotFound,
+					Title:  "Not Found: Training not found",
+				}}, nil
+		} else {
+			return CreateTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
+				InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusInternalServerError,
+					Title:  "Internal Server Error: Failed to get training",
+					Detail: err.Error(),
+				}}, nil
+		}
 	}
 
-	err := h.trainingDateAttendeeRepository.Create(req.TrainingDateID, &ta)
+	td, err := h.trainingDateRepository.FindByID(req.TrainingDateID)
+	if err != nil {
+		if errors.Is(err, training.ErrTrainingDateNotFound) {
+			return CreateTrainingDateAttendee404ApplicationProblemPlusJSONResponse{
+				NotFoundErrorApplicationProblemPlusJSONResponse: NotFoundErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusNotFound,
+					Title:  "Not Found: Training date not found",
+				}}, nil
+		} else {
+			return CreateTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
+				InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusInternalServerError,
+					Title:  "Internal Server Error: Failed to get training date",
+					Detail: err.Error(),
+				}}, nil
+		}
+	}
+
+	ta := training.TrainingDateAttendee{
+		Name:        req.Body.Name,
+		Email:       string(req.Body.Email),
+		Phone:       req.Body.Phone,
+		Company:     req.Body.Company,
+		Position:    req.Body.Position,
+		IsStudent:   *req.Body.IsStudent,
+		HasPaid:     false,
+		HasAttended: false,
+		Bill:        td.Price,
+	}
+
+	err = h.trainingDateAttendeeRepository.Create(req.TrainingDateID, &ta)
 	if err != nil {
 		return CreateTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
 			InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
@@ -511,6 +596,10 @@ func (h *APIHandlers) CreateTrainingDateAttendee(ctx context.Context, req Create
 		IsStudent:   &ta.IsStudent,
 		HasAttended: ta.HasAttended,
 		HasPaid:     ta.HasPaid,
+		Bill: Price{
+			Amount:   ta.Bill.Amount.String(),
+			Currency: ta.Bill.Currency,
+		},
 	}, nil
 }
 
@@ -551,6 +640,42 @@ func (h *APIHandlers) DeleteTrainingDateAttendee(ctx context.Context, req Delete
 }
 
 func (h *APIHandlers) GetTrainingDateAttendee(ctx context.Context, req GetTrainingDateAttendeeRequestObject) (GetTrainingDateAttendeeResponseObject, error) {
+	_, err := h.trainingRepository.FindByID(req.TrainingID)
+	if err != nil {
+		if errors.Is(err, training.ErrTrainingNotFound) {
+			return GetTrainingDateAttendee404ApplicationProblemPlusJSONResponse{
+				NotFoundErrorApplicationProblemPlusJSONResponse: NotFoundErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusNotFound,
+					Title:  "Not Found: Training not found",
+				}}, nil
+		} else {
+			return GetTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
+				InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusInternalServerError,
+					Title:  "Internal Server Error: Failed to get training",
+					Detail: err.Error(),
+				}}, nil
+		}
+	}
+
+	_, err = h.trainingDateRepository.FindByID(req.TrainingDateID)
+	if err != nil {
+		if errors.Is(err, training.ErrTrainingDateNotFound) {
+			return GetTrainingDateAttendee404ApplicationProblemPlusJSONResponse{
+				NotFoundErrorApplicationProblemPlusJSONResponse: NotFoundErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusNotFound,
+					Title:  "Not Found: Training date not found",
+				}}, nil
+		} else {
+			return GetTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
+				InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusInternalServerError,
+					Title:  "Internal Server Error: Failed to get training date",
+					Detail: err.Error(),
+				}}, nil
+		}
+	}
+
 	ta, err := h.trainingDateAttendeeRepository.FindByID(req.TrainingDateAttendeeID)
 	if errors.Is(err, training.ErrTrainingDateAttendeeNotFound) {
 		return GetTrainingDateAttendee404ApplicationProblemPlusJSONResponse{
@@ -577,16 +702,76 @@ func (h *APIHandlers) GetTrainingDateAttendee(ctx context.Context, req GetTraini
 		IsStudent:   &ta.IsStudent,
 		HasAttended: ta.HasAttended,
 		HasPaid:     ta.HasPaid,
+		Bill: Price{
+			Amount:   ta.Bill.Amount.String(),
+			Currency: ta.Bill.Currency,
+		},
 	}, nil
 }
 
 func (h *APIHandlers) UpdateTrainingDateAttendee(ctx context.Context, req UpdateTrainingDateAttendeeRequestObject) (UpdateTrainingDateAttendeeResponseObject, error) {
-	ta := training.TrainingDateAttendee{
+	_, err := h.trainingRepository.FindByID(req.TrainingID)
-		ID:   req.TrainingDateAttendeeID,
+	if err != nil {
-		Name: req.Body.Name,
+		if errors.Is(err, training.ErrTrainingNotFound) {
+			return UpdateTrainingDateAttendee404ApplicationProblemPlusJSONResponse{
+				NotFoundErrorApplicationProblemPlusJSONResponse: NotFoundErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusNotFound,
+					Title:  "Not Found: Training not found",
+				}}, nil
+		} else {
+			return UpdateTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
+				InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusInternalServerError,
+					Title:  "Internal Server Error: Failed to get training",
+					Detail: err.Error(),
+				}}, nil
+		}
 	}
 
-	err := h.trainingDateAttendeeRepository.Update(&ta)
+	_, err = h.trainingDateRepository.FindByID(req.TrainingDateID)
+	if err != nil {
+		if errors.Is(err, training.ErrTrainingDateNotFound) {
+			return UpdateTrainingDateAttendee404ApplicationProblemPlusJSONResponse{
+				NotFoundErrorApplicationProblemPlusJSONResponse: NotFoundErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusNotFound,
+					Title:  "Not Found: Training date not found",
+				}}, nil
+		} else {
+			return UpdateTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
+				InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusInternalServerError,
+					Title:  "Internal Server Error: Failed to get training date",
+					Detail: err.Error(),
+				}}, nil
+		}
+	}
+
+	ta, err := h.trainingDateAttendeeRepository.FindByID(req.TrainingDateAttendeeID)
+	if err != nil {
+		if errors.Is(err, training.ErrTrainingDateAttendeeNotFound) {
+			return UpdateTrainingDateAttendee404ApplicationProblemPlusJSONResponse{
+				NotFoundErrorApplicationProblemPlusJSONResponse: NotFoundErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusNotFound,
+					Title:  "Not Found: Training date attendee not found",
+				}}, nil
+		} else {
+			return UpdateTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
+				InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
+					Status: fiber.StatusInternalServerError,
+					Title:  "Internal Server Error: Failed to get training date attendee",
+					Detail: err.Error(),
+				}}, nil
+		}
+	}
+
+	ta.Name = req.Body.Name
+	ta.Email = string(req.Body.Email)
+	ta.Phone = req.Body.Phone
+	ta.Company = req.Body.Company
+	ta.Position = req.Body.Position
+	ta.IsStudent = *req.Body.IsStudent
+
+	err = h.trainingDateAttendeeRepository.Update(ta)
 	if err != nil {
 		return UpdateTrainingDateAttendee500ApplicationProblemPlusJSONResponse{
 			InternalErrorApplicationProblemPlusJSONResponse: InternalErrorApplicationProblemPlusJSONResponse{
@@ -606,5 +791,9 @@ func (h *APIHandlers) UpdateTrainingDateAttendee(ctx context.Context, req Update
 		IsStudent:   &ta.IsStudent,
 		HasAttended: ta.HasAttended,
 		HasPaid:     ta.HasPaid,
+		Bill: Price{
+			Amount:   ta.Bill.Amount.String(),
+			Currency: ta.Bill.Currency,
+		},
 	}, nil
 }