Files
pocket-id/backend/internal/bootstrap/db_bootstrap.go
2025-01-03 15:12:07 +01:00

124 lines
3.2 KiB
Go

package bootstrap
import (
"errors"
"fmt"
"github.com/golang-migrate/migrate/v4"
"github.com/golang-migrate/migrate/v4/database"
postgresMigrate "github.com/golang-migrate/migrate/v4/database/postgres"
sqliteMigrate "github.com/golang-migrate/migrate/v4/database/sqlite3"
"github.com/golang-migrate/migrate/v4/source/iofs"
"github.com/stonith404/pocket-id/backend/internal/common"
"github.com/stonith404/pocket-id/backend/resources"
"gorm.io/driver/postgres"
"gorm.io/driver/sqlite"
"gorm.io/gorm"
"gorm.io/gorm/logger"
"log"
"os"
"time"
)
func newDatabase() (db *gorm.DB) {
db, err := connectDatabase()
if err != nil {
log.Fatalf("failed to connect to database: %v", err)
}
sqlDb, err := db.DB()
if err != nil {
log.Fatalf("failed to get sql.DB: %v", err)
}
// Choose the correct driver for the database provider
var driver database.Driver
switch common.EnvConfig.DbProvider {
case common.DbProviderSqlite:
driver, err = sqliteMigrate.WithInstance(sqlDb, &sqliteMigrate.Config{})
case common.DbProviderPostgres:
driver, err = postgresMigrate.WithInstance(sqlDb, &postgresMigrate.Config{})
default:
log.Fatalf("unsupported database provider: %s", common.EnvConfig.DbProvider)
}
if err != nil {
log.Fatalf("failed to create migration driver: %v", err)
}
// Run migrations
if err := migrateDatabase(driver); err != nil {
log.Fatalf("failed to run migrations: %v", err)
}
return db
}
func migrateDatabase(driver database.Driver) error {
// Use the embedded migrations
source, err := iofs.New(resources.FS, "migrations/"+string(common.EnvConfig.DbProvider))
if err != nil {
return fmt.Errorf("failed to create embedded migration source: %v", err)
}
m, err := migrate.NewWithInstance("iofs", source, "pocket-id", driver)
if err != nil {
return fmt.Errorf("failed to create migration instance: %v", err)
}
err = m.Up()
if err != nil && !errors.Is(err, migrate.ErrNoChange) {
return fmt.Errorf("failed to apply migrations: %v", err)
}
return nil
}
func connectDatabase() (db *gorm.DB, err error) {
var dialector gorm.Dialector
// Choose the correct database provider
switch common.EnvConfig.DbProvider {
case common.DbProviderSqlite:
dialector = sqlite.Open(common.EnvConfig.SqliteDBPath)
case common.DbProviderPostgres:
dialector = postgres.Open(common.EnvConfig.PostgresConnectionString)
default:
return nil, fmt.Errorf("unsupported database provider: %s", common.EnvConfig.DbProvider)
}
for i := 1; i <= 3; i++ {
db, err = gorm.Open(dialector, &gorm.Config{
TranslateError: true,
Logger: getLogger(),
})
if err == nil {
break
} else {
log.Printf("Attempt %d: Failed to initialize database. Retrying...", i)
time.Sleep(3 * time.Second)
}
}
return db, err
}
func getLogger() logger.Interface {
isProduction := common.EnvConfig.AppEnv == "production"
var logLevel logger.LogLevel
if isProduction {
logLevel = logger.Error
} else {
logLevel = logger.Info
}
return logger.New(
log.New(os.Stdout, "\r\n", log.LstdFlags),
logger.Config{
SlowThreshold: 200 * time.Millisecond,
LogLevel: logLevel,
IgnoreRecordNotFoundError: isProduction,
ParameterizedQueries: isProduction,
Colorful: !isProduction,
},
)
}