probo/pkg/probo/third_party_business_associate_agreement_service.go

// Copyright (c) 2025-2026 Probo Inc <hello@probo.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package probo

import (
	"context"
	"fmt"
	"io"
	"mime"
	"net/url"
	"path/filepath"
	"time"

	"github.com/aws/aws-sdk-go-v2/service/s3"
	"go.gearno.de/crypto/uuid"
	"go.gearno.de/kit/pg"
	"go.probo.inc/probo/pkg/coredata"
	"go.probo.inc/probo/pkg/gid"
	"go.probo.inc/probo/pkg/validator"
)

type (
	ThirdPartyBusinessAssociateAgreementService struct {
		svc *Service
	}

	ThirdPartyBusinessAssociateAgreementCreateRequest struct {
		File       io.Reader
		ValidFrom  *time.Time
		ValidUntil *time.Time
		FileName   string
	}

	ThirdPartyBusinessAssociateAgreementUpdateRequest struct {
		ValidFrom  **time.Time
		ValidUntil **time.Time
	}
)

func (vbaacr *ThirdPartyBusinessAssociateAgreementCreateRequest) Validate() error {
	v := validator.New()

	v.Check(vbaacr.FileName, "file_name", validator.SafeTextNoNewLine(TitleMaxLength))
	v.Check(vbaacr.ValidUntil, "valid_until", validator.After(vbaacr.ValidFrom))

	return v.Error()
}

func (vbaaur *ThirdPartyBusinessAssociateAgreementUpdateRequest) Validate() error {
	v := validator.New()

	v.Check(vbaaur.ValidUntil, "valid_until", validator.After(vbaaur.ValidFrom))

	return v.Error()
}

func (s ThirdPartyBusinessAssociateAgreementService) GetByThirdPartyID(
	ctx context.Context, scope coredata.Scoper,
	thirdPartyID gid.GID,
) (*coredata.ThirdPartyBusinessAssociateAgreement, *coredata.File, error) {
	var (
		thirdPartyBusinessAssociateAgreement *coredata.ThirdPartyBusinessAssociateAgreement
		file                                 *coredata.File
	)

	err := s.svc.pg.WithConn(
		ctx,
		func(ctx context.Context, conn pg.Querier) error {
			thirdPartyBusinessAssociateAgreement = &coredata.ThirdPartyBusinessAssociateAgreement{}
			if err := thirdPartyBusinessAssociateAgreement.LoadByThirdPartyID(ctx, conn, scope, thirdPartyID); err != nil {
				return fmt.Errorf("cannot load thirdParty business associate agreement: %w", err)
			}

			file = &coredata.File{}
			if err := file.LoadByID(ctx, conn, scope, thirdPartyBusinessAssociateAgreement.FileID); err != nil {
				return fmt.Errorf("cannot load file: %w", err)
			}

			return nil
		},
	)
	if err != nil {
		return nil, nil, err
	}

	return thirdPartyBusinessAssociateAgreement, file, nil
}

func (s ThirdPartyBusinessAssociateAgreementService) Upload(
	ctx context.Context, scope coredata.Scoper,
	thirdPartyID gid.GID,
	req *ThirdPartyBusinessAssociateAgreementCreateRequest,
) (*coredata.ThirdPartyBusinessAssociateAgreement, *coredata.File, error) {
	if err := req.Validate(); err != nil {
		return nil, nil, err
	}

	objectKey, err := uuid.NewV7()
	if err != nil {
		return nil, nil, fmt.Errorf("cannot generate object key: %w", err)
	}

	var (
		thirdPartyBusinessAssociateAgreement *coredata.ThirdPartyBusinessAssociateAgreement
		file                                 *coredata.File
	)

	err = s.svc.pg.WithTx(
		ctx,
		func(ctx context.Context, conn pg.Tx) error {
			thirdParty := &coredata.ThirdParty{}
			if err := thirdParty.LoadByID(ctx, conn, scope, thirdPartyID); err != nil {
				return fmt.Errorf("cannot load thirdParty: %w", err)
			}

			mimeType := mime.TypeByExtension(filepath.Ext(req.FileName))

			_, err := s.svc.s3.PutObject(ctx, &s3.PutObjectInput{
				Bucket:       &s.svc.bucket,
				Key:          new(objectKey.String()),
				Body:         req.File,
				ContentType:  &mimeType,
				CacheControl: new("private, max-age=3600"),
				Metadata: map[string]string{
					"type":            "thirdParty-business-associate-agreement",
					"thirdParty-id":   thirdPartyID.String(),
					"organization-id": thirdParty.OrganizationID.String(),
				},
			})
			if err != nil {
				return fmt.Errorf("cannot upload file to S3: %w", err)
			}

			headOutput, err := s.svc.s3.HeadObject(ctx, &s3.HeadObjectInput{
				Bucket: new(s.svc.bucket),
				Key:    new(objectKey.String()),
			})
			if err != nil {
				return fmt.Errorf("cannot get object metadata: %w", err)
			}

			now := time.Now()
			fileID := gid.New(scope.GetTenantID(), coredata.FileEntityType)
			thirdPartyBusinessAssociateAgreementID := gid.New(scope.GetTenantID(), coredata.ThirdPartyBusinessAssociateAgreementEntityType)

			file = &coredata.File{
				ID:             fileID,
				OrganizationID: thirdParty.OrganizationID,
				BucketName:     s.svc.bucket,
				MimeType:       mimeType,
				FileName:       req.FileName,
				FileKey:        objectKey.String(),
				FileSize:       *headOutput.ContentLength,
				Visibility:     coredata.FileVisibilityPrivate,
				CreatedAt:      now,
				UpdatedAt:      now,
			}

			thirdPartyBusinessAssociateAgreement = &coredata.ThirdPartyBusinessAssociateAgreement{
				ID:             thirdPartyBusinessAssociateAgreementID,
				OrganizationID: thirdParty.OrganizationID,
				ThirdPartyID:   thirdPartyID,
				ValidFrom:      req.ValidFrom,
				ValidUntil:     req.ValidUntil,
				FileID:         fileID,
				CreatedAt:      now,
				UpdatedAt:      now,
			}

			if err := file.Insert(ctx, conn, scope); err != nil {
				return fmt.Errorf("cannot insert file: %w", err)
			}

			if err := thirdPartyBusinessAssociateAgreement.Upsert(ctx, conn, scope); err != nil {
				return fmt.Errorf("cannot insert thirdParty business associate agreement: %w", err)
			}

			return nil
		},
	)
	if err != nil {
		return nil, nil, err
	}

	return thirdPartyBusinessAssociateAgreement, file, nil
}

func (s ThirdPartyBusinessAssociateAgreementService) Get(
	ctx context.Context, scope coredata.Scoper,
	thirdPartyBusinessAssociateAgreementID gid.GID,
) (*coredata.ThirdPartyBusinessAssociateAgreement, *coredata.File, error) {
	var (
		thirdPartyBusinessAssociateAgreement *coredata.ThirdPartyBusinessAssociateAgreement
		file                                 *coredata.File
	)

	err := s.svc.pg.WithConn(
		ctx,
		func(ctx context.Context, conn pg.Querier) error {
			thirdPartyBusinessAssociateAgreement = &coredata.ThirdPartyBusinessAssociateAgreement{}
			if err := thirdPartyBusinessAssociateAgreement.LoadByID(ctx, conn, scope, thirdPartyBusinessAssociateAgreementID); err != nil {
				return fmt.Errorf("cannot load thirdParty business associate agreement: %w", err)
			}

			file = &coredata.File{}
			if err := file.LoadByID(ctx, conn, scope, thirdPartyBusinessAssociateAgreement.FileID); err != nil {
				return fmt.Errorf("cannot load file: %w", err)
			}

			return nil
		},
	)
	if err != nil {
		return nil, nil, fmt.Errorf("cannot load thirdParty business associate agreement: %w", err)
	}

	return thirdPartyBusinessAssociateAgreement, file, nil
}

func (s ThirdPartyBusinessAssociateAgreementService) GenerateFileURL(
	ctx context.Context, scope coredata.Scoper,
	thirdPartyBusinessAssociateAgreementID gid.GID,
	expiresIn time.Duration,
) (string, error) {
	var file *coredata.File

	err := s.svc.pg.WithConn(
		ctx,
		func(ctx context.Context, conn pg.Querier) error {
			thirdPartyBusinessAssociateAgreement := &coredata.ThirdPartyBusinessAssociateAgreement{}
			if err := thirdPartyBusinessAssociateAgreement.LoadByID(ctx, conn, scope, thirdPartyBusinessAssociateAgreementID); err != nil {
				return fmt.Errorf("cannot load thirdParty business associate agreement: %w", err)
			}

			file = &coredata.File{}
			if err := file.LoadByID(ctx, conn, scope, thirdPartyBusinessAssociateAgreement.FileID); err != nil {
				return fmt.Errorf("cannot load file: %w", err)
			}

			return nil
		},
	)
	if err != nil {
		return "", err
	}

	presignClient := s3.NewPresignClient(s.svc.s3)

	encodedFilename := url.QueryEscape(file.FileName)
	contentDisposition := fmt.Sprintf("attachment; filename=\"%s\"; filename*=UTF-8''%s",
		encodedFilename, encodedFilename)

	presignedReq, err := presignClient.PresignGetObject(ctx, &s3.GetObjectInput{
		Bucket:                     new(s.svc.bucket),
		Key:                        new(file.FileKey),
		ResponseCacheControl:       new("max-age=3600, public"),
		ResponseContentDisposition: new(contentDisposition),
	}, func(opts *s3.PresignOptions) {
		opts.Expires = expiresIn
	})
	if err != nil {
		return "", fmt.Errorf("cannot presign GetObject request: %w", err)
	}

	return presignedReq.URL, nil
}

func (s ThirdPartyBusinessAssociateAgreementService) Update(
	ctx context.Context, scope coredata.Scoper,
	thirdPartyID gid.GID,
	req *ThirdPartyBusinessAssociateAgreementUpdateRequest,
) (*coredata.ThirdPartyBusinessAssociateAgreement, *coredata.File, error) {
	if err := req.Validate(); err != nil {
		return nil, nil, err
	}

	existingAgreement := &coredata.ThirdPartyBusinessAssociateAgreement{}
	file := &coredata.File{}

	err := s.svc.pg.WithTx(
		ctx,
		func(ctx context.Context, conn pg.Tx) error {
			if err := existingAgreement.LoadByThirdPartyID(ctx, conn, scope, thirdPartyID); err != nil {
				return fmt.Errorf("cannot load existing thirdParty business associate agreement: %w", err)
			}

			now := time.Now()

			if req.ValidFrom != nil {
				existingAgreement.ValidFrom = *req.ValidFrom
			}

			if req.ValidUntil != nil {
				existingAgreement.ValidUntil = *req.ValidUntil
			}

			existingAgreement.UpdatedAt = now

			if err := existingAgreement.Update(ctx, conn, scope); err != nil {
				return fmt.Errorf("cannot update thirdParty business associate agreement: %w", err)
			}

			if err := file.LoadByID(ctx, conn, scope, existingAgreement.FileID); err != nil {
				return fmt.Errorf("cannot load file: %w", err)
			}

			return nil
		},
	)
	if err != nil {
		return nil, nil, err
	}

	return existingAgreement, file, nil
}

func (s ThirdPartyBusinessAssociateAgreementService) Delete(
	ctx context.Context, scope coredata.Scoper,
	thirdPartyBusinessAssociateAgreementID gid.GID,
) error {
	return s.svc.pg.WithTx(
		ctx,
		func(ctx context.Context, conn pg.Tx) error {
			thirdPartyBusinessAssociateAgreement := &coredata.ThirdPartyBusinessAssociateAgreement{}
			if err := thirdPartyBusinessAssociateAgreement.LoadByID(ctx, conn, scope, thirdPartyBusinessAssociateAgreementID); err != nil {
				return fmt.Errorf("cannot load thirdParty business associate agreement: %w", err)
			}

			if err := thirdPartyBusinessAssociateAgreement.Delete(ctx, conn, scope); err != nil {
				return fmt.Errorf("cannot delete thirdParty business associate agreement: %w", err)
			}

			return nil
		},
	)
}

func (s ThirdPartyBusinessAssociateAgreementService) DeleteByThirdPartyID(
	ctx context.Context, scope coredata.Scoper,
	thirdPartyID gid.GID,
) error {
	return s.svc.pg.WithTx(
		ctx,
		func(ctx context.Context, conn pg.Tx) error {
			thirdPartyBusinessAssociateAgreement := &coredata.ThirdPartyBusinessAssociateAgreement{}
			if err := thirdPartyBusinessAssociateAgreement.LoadByThirdPartyID(ctx, conn, scope, thirdPartyID); err != nil {
				return fmt.Errorf("cannot load thirdParty business associate agreement: %w", err)
			}

			if err := thirdPartyBusinessAssociateAgreement.DeleteByThirdPartyID(ctx, conn, scope, thirdPartyID); err != nil {
				return fmt.Errorf("cannot delete thirdParty business associate agreement: %w", err)
			}

			return nil
		},
	)
}