104 lines
2 KiB
Go
104 lines
2 KiB
Go
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package database
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import (
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"context"
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"database/sql"
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"runtime"
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"git.adyxax.org/adyxax/tfstated/pkg/scrypto"
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)
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func initDB(ctx context.Context, url string) (*sql.DB, error) {
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db, err := sql.Open("sqlite3", url)
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if err != nil {
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return nil, err
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}
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defer func() {
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if err != nil {
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_ = db.Close()
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}
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}()
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if _, err = db.ExecContext(ctx, "PRAGMA busy_timeout = 5000"); err != nil {
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return nil, err
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}
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return db, nil
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}
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type DB struct {
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ctx context.Context
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dataEncryptionKey scrypto.AES256Key
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readDB *sql.DB
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writeDB *sql.DB
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}
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func NewDB(ctx context.Context, url string) (*DB, error) {
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readDB, err := initDB(ctx, url)
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if err != nil {
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return nil, err
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}
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defer func() {
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if err != nil {
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_ = readDB.Close()
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}
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}()
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readDB.SetMaxOpenConns(max(4, runtime.NumCPU()))
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writeDB, err := initDB(ctx, url)
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if err != nil {
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return nil, err
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}
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defer func() {
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if err != nil {
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_ = writeDB.Close()
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}
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}()
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writeDB.SetMaxOpenConns(1)
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db := DB{
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ctx: ctx,
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readDB: readDB,
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writeDB: writeDB,
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}
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if _, err = db.Exec("PRAGMA foreign_keys = ON"); err != nil {
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return nil, err
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}
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if _, err = db.Exec("PRAGMA cache_size = 10000000"); err != nil {
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return nil, err
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}
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if _, err = db.Exec("PRAGMA journal_mode = WAL"); err != nil {
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return nil, err
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}
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if _, err = db.Exec("PRAGMA synchronous = NORMAL"); err != nil {
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return nil, err
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}
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if err = db.migrate(); err != nil {
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return nil, err
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}
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return &db, nil
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}
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func (db *DB) Begin() (*sql.Tx, error) {
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return db.writeDB.Begin()
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}
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func (db *DB) Close() error {
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if err := db.readDB.Close(); err != nil {
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_ = db.writeDB.Close()
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}
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return db.writeDB.Close()
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}
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func (db *DB) Exec(query string, args ...any) (sql.Result, error) {
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return db.writeDB.ExecContext(db.ctx, query, args...)
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}
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func (db *DB) QueryRow(query string, args ...any) *sql.Row {
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return db.readDB.QueryRowContext(db.ctx, query, args...)
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}
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func (db *DB) SetDataEncryptionKey(s string) error {
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return db.dataEncryptionKey.FromBase64(s)
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}
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