fasten-onprem/backend/pkg/database/sqlite_repository.go

203 lines
7.2 KiB
Go

package database
import (
"context"
"fmt"
"github.com/fastenhealth/fastenhealth-onprem/backend/pkg/config"
"github.com/fastenhealth/fastenhealth-onprem/backend/pkg/models"
"github.com/gin-gonic/gin"
"github.com/glebarez/sqlite"
"github.com/sirupsen/logrus"
"gorm.io/gorm"
"net/url"
)
func NewRepository(appConfig config.Interface, globalLogger logrus.FieldLogger) (DatabaseRepository, error) {
//backgroundContext := context.Background()
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Gorm/SQLite setup
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
globalLogger.Infof("Trying to connect to sqlite db: %s\n", appConfig.GetString("web.database.location"))
// When a transaction cannot lock the database, because it is already locked by another one,
// SQLite by default throws an error: database is locked. This behavior is usually not appropriate when
// concurrent access is needed, typically when multiple processes write to the same database.
// PRAGMA busy_timeout lets you set a timeout or a handler for these events. When setting a timeout,
// SQLite will try the transaction multiple times within this timeout.
// fixes #341
// https://rsqlite.r-dbi.org/reference/sqlitesetbusyhandler
// retrying for 30000 milliseconds, 30seconds - this would be unreasonable for a distributed multi-tenant application,
// but should be fine for local usage.
pragmaStr := sqlitePragmaString(map[string]string{
"busy_timeout": "30000",
"foreign_keys": "ON",
})
database, err := gorm.Open(sqlite.Open(appConfig.GetString("web.database.location")+pragmaStr), &gorm.Config{
//TODO: figure out how to log database queries again.
//Logger: logger
DisableForeignKeyConstraintWhenMigrating: true,
})
if err != nil {
return nil, fmt.Errorf("Failed to connect to database! - %v", err)
}
globalLogger.Infof("Successfully connected to scrutiny sqlite db: %s\n", appConfig.GetString("web.database.location"))
//TODO: automigrate for now
err = database.AutoMigrate(
&models.User{},
&models.Source{},
&models.ResourceFhir{},
)
if err != nil {
return nil, fmt.Errorf("Failed to automigrate! - %v", err)
}
// create/update admin user
adminUser := models.User{}
err = database.FirstOrCreate(&adminUser, models.User{Username: "admin"}).Error
if err != nil {
return nil, fmt.Errorf("Failed to create admin user! - %v", err)
}
deviceRepo := sqliteRepository{
appConfig: appConfig,
logger: globalLogger,
gormClient: database,
}
return &deviceRepo, nil
}
type sqliteRepository struct {
appConfig config.Interface
logger logrus.FieldLogger
gormClient *gorm.DB
}
func (sr *sqliteRepository) Close() error {
return nil
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// User
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (sr *sqliteRepository) CreateUser(ctx context.Context, user *models.User) error {
if err := user.HashPassword(user.Password); err != nil {
return err
}
record := sr.gormClient.Create(&user)
if record.Error != nil {
return record.Error
}
return nil
}
func (sr *sqliteRepository) GetUserByEmail(ctx context.Context, username string) (*models.User, error) {
var foundUser models.User
result := sr.gormClient.Model(models.User{}).Where(models.User{Username: username}).First(&foundUser)
return &foundUser, result.Error
}
func (sr *sqliteRepository) GetCurrentUser(ctx context.Context) models.User {
ginCtx := ctx.(*gin.Context)
var currentUser models.User
sr.gormClient.Model(models.User{}).First(&currentUser, models.User{Username: ginCtx.MustGet("AUTH_USERNAME").(string)})
return currentUser
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Resource
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (sr *sqliteRepository) UpsertResource(ctx context.Context, resourceModel models.ResourceFhir) error {
sr.logger.Infof("insert/update (%T) %v", resourceModel, resourceModel)
if sr.gormClient.Debug().WithContext(ctx).Model(&resourceModel).
Where(models.OriginBase{
SourceID: resourceModel.GetSourceID(),
SourceResourceID: resourceModel.GetSourceResourceID(),
SourceResourceType: resourceModel.GetSourceResourceType(), //TODO: and UpdatedAt > old UpdatedAt
}).Updates(&resourceModel).RowsAffected == 0 {
sr.logger.Infof("resource does not exist, creating: %s %s %s", resourceModel.GetSourceID(), resourceModel.GetSourceResourceID(), resourceModel.GetSourceResourceType())
return sr.gormClient.Debug().Model(&resourceModel).Create(&resourceModel).Error
}
return nil
}
func (sr *sqliteRepository) ListResources(ctx context.Context, sourceResourceType string, sourceResourceId string) ([]models.ResourceFhir, error) {
queryParam := models.ResourceFhir{
OriginBase: models.OriginBase{
UserID: sr.GetCurrentUser(ctx).ID,
SourceResourceType: sourceResourceType,
},
}
if len(sourceResourceId) > 0 {
queryParam.SourceResourceID = sourceResourceId
}
var wrappedResourceModels []models.ResourceFhir
results := sr.gormClient.WithContext(ctx).
Where(queryParam).
Find(&wrappedResourceModels)
return wrappedResourceModels, results.Error
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Source
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func (sr *sqliteRepository) CreateSource(ctx context.Context, sourceCreds *models.Source) error {
sourceCreds.UserID = sr.GetCurrentUser(ctx).ID
if sr.gormClient.WithContext(ctx).Model(&sourceCreds).
Where(models.Source{
UserID: sourceCreds.UserID,
SourceType: sourceCreds.SourceType,
PatientId: sourceCreds.PatientId}).Updates(&sourceCreds).RowsAffected == 0 {
return sr.gormClient.WithContext(ctx).Create(&sourceCreds).Error
}
return nil
}
func (sr *sqliteRepository) GetSources(ctx context.Context) ([]models.Source, error) {
var sourceCreds []models.Source
results := sr.gormClient.WithContext(ctx).
Where(models.Source{UserID: sr.GetCurrentUser(ctx).ID}).
Find(&sourceCreds)
return sourceCreds, results.Error
}
//func (sr *sqliteRepository) GetSource(ctx context.Context, providerId string) (models.Source, error) {
//
// var providerCredentials models.Source
// results := sr.gormClient.WithContext(ctx).
// Where(models.Source{UserID: sr.GetCurrentUser().ID, SourceType: providerId}).
// Find(&providerCredentials)
//
// return providerCredential, results.Error
//}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Utilities
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
func sqlitePragmaString(pragmas map[string]string) string {
q := url.Values{}
for key, val := range pragmas {
q.Add("_pragma", key+"="+val)
}
queryStr := q.Encode()
if len(queryStr) > 0 {
return "?" + queryStr
}
return ""
}