package database

import (
	"database/sql"
	"fmt"
	"os"
	"path/filepath"

	_ "modernc.org/sqlite"
)

func Open(path string) (*sql.DB, error) {
	if dir := filepath.Dir(path); dir != "." && dir != "" {
		if err := os.MkdirAll(dir, 0755); err != nil {
			return nil, fmt.Errorf("create db directory %q: %w", dir, err)
		}
	}

	db, err := sql.Open("sqlite", path)
	if err != nil {
		return nil, fmt.Errorf("open sqlite %q: %w", path, err)
	}

	pragmas := []string{
		"PRAGMA journal_mode=WAL",
		"PRAGMA foreign_keys=ON",
		"PRAGMA busy_timeout=5000",
	}
	for _, p := range pragmas {
		if _, err := db.Exec(p); err != nil {
			db.Close()
			return nil, fmt.Errorf("exec %q: %w", p, err)
		}
	}

	if err := db.Ping(); err != nil {
		db.Close()
		return nil, fmt.Errorf("ping sqlite %q: %w", path, err)
	}

	return db, nil
}