package gapi

import (
	"context"

	"github.com/FernandoJVideira/simple_bank/internal/service"
	"github.com/FernandoJVideira/simple_bank/internal/val"
	"github.com/FernandoJVideira/simple_bank/pb"
	"google.golang.org/genproto/googleapis/rpc/errdetails"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

func (s *Server) VerifyEmail(ctx context.Context, req *pb.VerifyEmailRequest) (*pb.VerifyEmailResponse, error) {
	violations := validateVerifyEmailRequest(req)
	if violations != nil {
		return nil, invalidArgumentError(violations)
	}

	result, err := s.userService.VerifyEmail(ctx, service.EmailVerificationRequest{
		EmailID:    req.GetId(),
		SecretCode: req.GetCode(),
	})
	if err != nil {
		return nil, status.Error(codes.Internal, "failed to verify email")
	}

	resp := &pb.VerifyEmailResponse{
		IsVerified: result.User.IsEmailVerified,
	}
	return resp, nil
}

func validateVerifyEmailRequest(req *pb.VerifyEmailRequest) (violations []*errdetails.BadRequest_FieldViolation) {
	if err := val.ValidateEmailID(req.GetId()); err != nil {
		violations = append(violations, fieldViolation("id", err))
	}

	if err := val.ValidateVerificationCode(req.GetCode()); err != nil {
		violations = append(violations, fieldViolation("secret_code", err))
	}

	return violations
}