package db

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

	_ "modernc.org/sqlite"
)

//go:embed schema.sql
var schema string

// Open opens (creating the file if it does not exist) the SQLite database at path
// and applies the embedded schema.
func Open(path string) (*sql.DB, error) {
	dsn := fmt.Sprintf("file:%s?_pragma=journal_mode(WAL)&_pragma=busy_timeout(5000)", path)
	database, err := sql.Open("sqlite", dsn)
	if err != nil {
		return nil, fmt.Errorf("could not open database: %w", err)
	}
	database.SetMaxOpenConns(1)

	if _, err := database.Exec(schema); err != nil {
		_ = database.Close()
		return nil, fmt.Errorf("could not apply schema: %w", err)
	}

	return database, nil
}