// Package db opens the SQLite database and applies goose migrations.
package db

import (
	"database/sql"
	"embed"
	"fmt"

	"github.com/pressly/goose/v3"
	_ "modernc.org/sqlite"
)

//go:embed migrations/*.sql
var migrations embed.FS

// Open opens (creating if needed) the SQLite file at path and migrates it
// to the latest schema. WAL + busy_timeout keep reads snappy under writes.
func Open(path string) (*sql.DB, error) {
	dsn := fmt.Sprintf("file:%s?_pragma=busy_timeout(5000)&_pragma=journal_mode(WAL)&_pragma=foreign_keys(1)", path)
	sqlDB, err := sql.Open("sqlite", dsn)
	if err != nil {
		return nil, fmt.Errorf("open sqlite: %w", err)
	}

	goose.SetBaseFS(migrations)
	if err := goose.SetDialect("sqlite3"); err != nil {
		return nil, fmt.Errorf("goose dialect: %w", err)
	}
	if err := goose.Up(sqlDB, "migrations"); err != nil {
		return nil, fmt.Errorf("migrate: %w", err)
	}
	return sqlDB, nil
}