89 lines
1.7 KiB
Go
89 lines
1.7 KiB
Go
package database
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import (
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"govd/models"
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"fmt"
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"log"
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"os"
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"time"
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"gorm.io/driver/mysql"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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)
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var DB *gorm.DB
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func Start() {
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DB = connect()
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sqlDB, err := DB.DB()
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if err != nil {
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log.Fatalf("failed to get database connection: %v", err)
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}
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sqlDB.SetMaxIdleConns(20)
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sqlDB.SetMaxOpenConns(50)
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sqlDB.SetConnMaxLifetime(30 * time.Minute)
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err = sqlDB.Ping()
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if err != nil {
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log.Fatalf("failed to ping database: %v", err)
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}
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err = migrateDatabase()
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if err != nil {
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log.Fatalf("failed to migrate database: %v", err)
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}
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}
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func connect() *gorm.DB {
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host := os.Getenv("DB_HOST")
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port := os.Getenv("DB_PORT")
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user := os.Getenv("DB_USER")
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password := os.Getenv("DB_PASSWORD")
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dbname := os.Getenv("DB_NAME")
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connectionString := fmt.Sprintf(
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"%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True",
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user, password, host, port, dbname,
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)
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var conn *gorm.DB
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var err error
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maxRetries := 10
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retryCount := 0
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for retryCount < maxRetries {
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conn, err = gorm.Open(mysql.Open(connectionString), &gorm.Config{
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Logger: logger.Default.LogMode(logger.Silent),
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NowFunc: func() time.Time {
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utc, _ := time.LoadLocation("Europe/Rome")
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return time.Now().In(utc)
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},
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})
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if err == nil {
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break
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}
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retryCount++
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log.Printf("failed to connect to database (attempt %d/%d)", retryCount, maxRetries)
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if retryCount < maxRetries {
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time.Sleep(2 * time.Second)
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}
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}
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if err != nil {
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log.Fatalf("failed to connect to database after %d attempts: %v", maxRetries, err)
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}
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return conn
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}
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func migrateDatabase() error {
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err := DB.AutoMigrate(
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&models.Media{},
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&models.MediaFormat{},
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&models.GroupSettings{},
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&models.User{},
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)
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if err != nil {
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return err
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}
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return nil
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}
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