316 lines
8.3 KiB
Go
316 lines
8.3 KiB
Go
package requests
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import (
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server "blackforestbytes.com/simplecloudnotifier"
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"blackforestbytes.com/simplecloudnotifier/db/dbtools"
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"blackforestbytes.com/simplecloudnotifier/db/schema"
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"blackforestbytes.com/simplecloudnotifier/db/simplectx"
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"blackforestbytes.com/simplecloudnotifier/models"
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"context"
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"database/sql"
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"errors"
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"fmt"
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"github.com/glebarez/go-sqlite"
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"github.com/jmoiron/sqlx"
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"github.com/rs/zerolog/log"
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"gogs.mikescher.com/BlackForestBytes/goext/exerr"
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"gogs.mikescher.com/BlackForestBytes/goext/langext"
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"gogs.mikescher.com/BlackForestBytes/goext/sq"
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"os"
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"path/filepath"
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"time"
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)
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type Database struct {
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db sq.DB
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pp *dbtools.DBPreprocessor
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wal bool
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name string
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schemaVersion int
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schema map[int]schema.Def
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}
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func NewRequestsDatabase(cfg server.Config) (*Database, error) {
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conf := cfg.DBRequests
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url := fmt.Sprintf("file:%s?_pragma=journal_mode(%s)&_pragma=timeout(%d)&_pragma=foreign_keys(%s)&_pragma=busy_timeout(%d)",
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conf.File,
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conf.Journal,
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conf.Timeout.Milliseconds(),
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langext.FormatBool(conf.CheckForeignKeys, "true", "false"),
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conf.BusyTimeout.Milliseconds())
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if !langext.InArray("sqlite3", sql.Drivers()) {
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sqlite.RegisterAsSQLITE3()
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}
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xdb, err := sqlx.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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if conf.SingleConn {
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xdb.SetMaxOpenConns(1)
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} else {
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xdb.SetMaxOpenConns(5)
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xdb.SetMaxIdleConns(5)
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xdb.SetConnMaxLifetime(60 * time.Minute)
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xdb.SetConnMaxIdleTime(60 * time.Minute)
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}
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qqdb := sq.NewDB(xdb, sq.DBOptions{RegisterDefaultConverter: langext.PTrue, RegisterCommentTrimmer: langext.PTrue})
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models.RegisterConverter(qqdb)
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if conf.EnableLogger {
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qqdb.AddListener(dbtools.DBLogger{})
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}
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pp, err := dbtools.NewDBPreprocessor(qqdb)
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if err != nil {
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return nil, err
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}
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qqdb.AddListener(pp)
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scndb := &Database{
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db: qqdb,
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pp: pp,
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wal: conf.Journal == "WAL",
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schemaVersion: schema.RequestsSchemaVersion,
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schema: schema.RequestsSchema,
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name: "requests",
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}
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return scndb, nil
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}
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func (db *Database) DB() sq.DB {
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return db.db
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}
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func (db *Database) Migrate(outerctx context.Context) error {
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innerctx, cancel := context.WithTimeout(outerctx, 24*time.Second)
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tctx := simplectx.CreateSimpleContext(innerctx, cancel)
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tx, err := tctx.GetOrCreateTransaction(db)
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if err != nil {
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return err
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}
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defer func() {
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if tx.Status() == sq.TxStatusInitial || tx.Status() == sq.TxStatusActive {
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err = tx.Rollback()
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if err != nil {
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log.Err(err).Msg("failed to rollback transaction")
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}
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}
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}()
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ppReInit := false
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currschema, err := db.ReadSchema(tctx)
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if err != nil {
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return err
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}
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if currschema == db.schemaVersion {
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log.Info().Msgf("Database [%s] is up-to-date (%d == %d)", db.name, currschema, db.schemaVersion)
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}
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for currschema < db.schemaVersion {
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if currschema == 0 {
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log.Info().Msgf("Migrate database (initialize) [%s] %d -> %d", db.name, currschema, db.schemaVersion)
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schemastr := db.schema[db.schemaVersion].SQL
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schemahash := db.schema[db.schemaVersion].Hash
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_, err = tx.Exec(tctx, schemastr, sq.PP{})
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if err != nil {
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return err
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}
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err = db.WriteMetaInt(tctx, "schema", int64(db.schemaVersion))
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if err != nil {
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return err
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}
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err = db.WriteMetaString(tctx, "schema_hash", schemahash)
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if err != nil {
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return err
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}
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ppReInit = true
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currschema = db.schemaVersion
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} else {
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log.Info().Msgf("Migrate database [%s] %d -> %d", db.name, currschema, currschema+1)
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err = db.migrateSingle(tctx, tx, currschema, currschema+1)
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if err != nil {
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return err
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}
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currschema = currschema + 1
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ppReInit = true
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}
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}
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if currschema != db.schemaVersion {
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return errors.New(fmt.Sprintf("Unknown DB schema: %d", currschema))
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}
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err = tx.Commit()
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if err != nil {
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return err
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}
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if ppReInit {
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log.Debug().Msg("Re-Init preprocessor")
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err = db.pp.Init(outerctx) // Re-Init
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if err != nil {
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return err
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}
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}
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return nil
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}
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//goland:noinspection SqlConstantCondition,SqlWithoutWhere
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func (db *Database) migrateSingle(tctx *simplectx.SimpleContext, tx sq.Tx, schemaFrom int, schemaTo int) error {
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if schemaFrom == schemaTo-1 {
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migSQL := db.schema[schemaTo].MigScript
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if migSQL == "" {
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return exerr.New(exerr.TypeInternal, fmt.Sprintf("missing %s migration from %d to %d", db.name, schemaFrom, schemaTo)).Build()
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}
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return db.migrateBySQL(tctx, tx, migSQL, schemaFrom, schemaTo, db.schema[schemaTo].Hash, nil)
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}
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return exerr.New(exerr.TypeInternal, fmt.Sprintf("missing %s migration from %d to %d", db.name, schemaFrom, schemaTo)).Build()
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}
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func (db *Database) migrateBySQL(tctx *simplectx.SimpleContext, tx sq.Tx, stmts string, currSchemaVers int, resultSchemVers int, resultHash string, post func(tctx *simplectx.SimpleContext, tx sq.Tx) error) error {
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schemaHashMeta, err := db.ReadMetaString(tctx, "schema_hash")
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if err != nil {
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return err
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}
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schemHashDBBefore, err := sq.HashSqliteDatabase(tctx, tx)
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if err != nil {
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return err
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}
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if schemHashDBBefore != langext.Coalesce(schemaHashMeta, "") || langext.Coalesce(schemaHashMeta, "") != db.schema[currSchemaVers].Hash {
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log.Debug().Str("schemHashDB", schemHashDBBefore).Msg("Schema (primary db)")
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log.Debug().Str("schemaHashMeta", langext.Coalesce(schemaHashMeta, "")).Msg("Schema (primary db)")
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log.Debug().Str("schemaHashAsset", db.schema[currSchemaVers].Hash).Msg("Schema (primary db)")
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return errors.New("database schema does not match (primary db)")
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} else {
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log.Debug().Str("schemHash", schemHashDBBefore).Msg("Verified Schema consistency (primary db)")
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}
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log.Info().Msgf("Upgrade schema from %d -> %d", currSchemaVers, resultSchemVers)
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_, err = tx.Exec(tctx, stmts, sq.PP{})
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if err != nil {
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return err
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}
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schemHashDBAfter, err := sq.HashSqliteDatabase(tctx, tx)
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if err != nil {
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return err
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}
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if schemHashDBAfter != resultHash {
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schemaDBStr := langext.Must(createSqliteDatabaseSchemaStringFromSQL(tctx, db.schema[resultSchemVers].SQL))
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resultDBStr := langext.Must(sq.CreateSqliteDatabaseSchemaString(tctx, tx))
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fmt.Printf("========================================= SQL SCHEMA-DUMP STR (CORRECT | FROM COMPILED SCHEMA):%s\n=========================================\n\n", schemaDBStr)
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fmt.Printf("========================================= SQL SCHEMA-DUMP STR (CURRNET | AFTER MIGRATION):%s\n=========================================\n\n", resultDBStr)
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return fmt.Errorf("database [%s] schema does not match after [%d -> %d] migration (expected: %s | actual: %s)", db.name, currSchemaVers, resultSchemVers, resultHash, schemHashDBBefore)
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}
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err = db.WriteMetaInt(tctx, "schema", int64(resultSchemVers))
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if err != nil {
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return err
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}
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err = db.WriteMetaString(tctx, "schema_hash", resultHash)
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if err != nil {
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return err
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}
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log.Info().Msgf("Upgrade schema from %d -> %d succesfully", currSchemaVers, resultSchemVers)
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return nil
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}
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func createSqliteDatabaseSchemaStringFromSQL(ctx context.Context, schemaStr string) (string, error) {
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dbdir := os.TempDir()
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dbfile1 := filepath.Join(dbdir, langext.MustHexUUID()+".sqlite3")
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defer func() { _ = os.Remove(dbfile1) }()
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err := os.MkdirAll(dbdir, os.ModePerm)
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if err != nil {
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return "", err
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}
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url := fmt.Sprintf("file:%s?_pragma=journal_mode(%s)&_pragma=timeout(%d)&_pragma=foreign_keys(%s)&_pragma=busy_timeout(%d)", dbfile1, "DELETE", 1000, "true", 1000)
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xdb, err := sqlx.Open("sqlite", url)
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if err != nil {
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return "", err
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}
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db := sq.NewDB(xdb, sq.DBOptions{})
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_, err = db.Exec(ctx, schemaStr, sq.PP{})
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if err != nil {
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return "", err
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}
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return sq.CreateSqliteDatabaseSchemaString(ctx, db)
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}
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func (db *Database) Ping(ctx context.Context) error {
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return db.db.Ping(ctx)
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}
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func (db *Database) Version(ctx context.Context) (string, string, error) {
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type rt struct {
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Version string `db:"version"`
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SourceID string `db:"sourceID"`
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}
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resp, err := sq.QuerySingle[rt](ctx, db.db, "SELECT sqlite_version() AS version, sqlite_source_id() AS sourceID", sq.PP{}, sq.SModeFast, sq.Safe)
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if err != nil {
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return "", "", err
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}
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return resp.Version, resp.SourceID, nil
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}
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func (db *Database) BeginTx(ctx context.Context) (sq.Tx, error) {
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return db.db.BeginTransaction(ctx, sql.LevelDefault)
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}
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func (db *Database) Stop(ctx context.Context) error {
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if db.wal {
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_, err := db.db.Exec(ctx, "PRAGMA wal_checkpoint;", sq.PP{})
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if err != nil {
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return err
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}
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}
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err := db.db.Exit()
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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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