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// SPDX-FileCopyrightText: 2025 Shota FUJI <pockawoooh@gmail.com>
// SPDX-License-Identifier: AGPL-3.0-only

package migrations

import (
	"database/sql"
	"fmt"
	"log"
)

func Run(db *sql.DB, migrations []Migration) error {
	var currentVersion uint
	row := db.QueryRow("PRAGMA user_version")
	if err := row.Scan(&currentVersion); err != nil {
		return err
	}

	log.Printf("Current schema version is %d", currentVersion)

	for _, m := range migrations {
		v := m.Version()
		if v <= currentVersion {
			continue
		}

		log.Printf("Running migration v%d...", v)

		tx, err := db.Begin()
		if err != nil {
			return err
		}

		if err := m.Run(tx); err != nil {
			log.Printf("Failed to run migration v%d: %s", v, err)
			return tx.Rollback()
		}

		if _, err := tx.Exec(fmt.Sprintf("PRAGMA user_version = %d", v)); err != nil {
			return err
		}
		currentVersion = v

		if err := tx.Commit(); err != nil {
			return err
		}

		log.Printf("Completed migration v%d", v)
	}

	return nil
}