From 3fe37224ccc2500e7e767e5fc00163ef61182828 Mon Sep 17 00:00:00 2001
From: Jonas Knobloch <jonas.knobloch@t-online.de>
Date: Fri, 17 Apr 2026 16:07:14 +0200
Subject: Add sander module

---
 research/sander/experiment.go | 85 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 research/sander/experiment.go

(limited to 'research/sander/experiment.go')

diff --git a/research/sander/experiment.go b/research/sander/experiment.go
new file mode 100644
index 0000000..1521cf8
--- /dev/null
+++ b/research/sander/experiment.go
@@ -0,0 +1,85 @@
+package sander
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+
+	_ "github.com/duckdb/duckdb-go/v2"
+)
+
+type Experiment struct {
+	name      string
+	model     string
+	reference map[int64]struct{}
+}
+
+func NewExperiment(name, model string, reference map[int64]struct{}) (*Experiment, error) {
+	e := &Experiment{
+		name:      name,
+		model:     model,
+		reference: reference,
+	}
+
+	return e, nil
+}
+
+func (e *Experiment) Run() error {
+	if err := os.MkdirAll(e.name, 0775); err != nil {
+		log.Fatal(err)
+	}
+
+	dsn := filepath.Join(e.name, "wte.db")
+
+	var db *sql.DB
+
+	if database, err := initDatabase(dsn); err != nil {
+		return err
+	} else {
+		db = database
+	}
+
+	defer db.Close()
+
+	db.SetMaxOpenConns(1)
+
+	fmt.Println(e.name)
+
+	if _, err := db.Exec(`INSTALL vss; LOAD vss;`); err != nil {
+		return err
+	}
+
+	if err := e.Extract(db); err != nil {
+		return err
+	}
+
+	if err := e.Analyze(db); err != nil {
+		return err
+	}
+
+	if err := e.Plot(db); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func initDatabase(dsn string) (*sql.DB, error) {
+	var db *sql.DB
+
+	if database, err := sql.Open("duckdb", dsn); err != nil {
+		return nil, err
+	} else {
+		db = database
+	}
+
+	if err := db.Ping(); err != nil {
+		_ = db.Close()
+
+		return nil, err
+	}
+
+	return db, nil
+}
-- 
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