// Package testutil provides composable test helpers for spinning up
// real infrastructure (in-memory SQLite, session managers) in
// integration tests.
package testutil

import (
	"database/sql"
	"io/fs"
	"testing"

	"github.com/ryanhamamura/c4/db"
	"github.com/ryanhamamura/c4/db/repository"

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

// NewTestDB opens an in-memory SQLite database with the same pragmas as
// production, runs all goose migrations, and returns the raw connection
// alongside the sqlc Queries handle. The database is closed automatically
// when the test finishes.
func NewTestDB(t *testing.T) (*sql.DB, *repository.Queries) {
	t.Helper()

	pragmas := "?_pragma=busy_timeout(10000)&_pragma=journal_mode(WAL)&_pragma=journal_size_limit(200000000)&_pragma=synchronous(NORMAL)&_pragma=foreign_keys(ON)&_pragma=temp_store(MEMORY)&_pragma=cache_size(-32000)"
	database, err := goose.OpenDBWithDriver("sqlite", ":memory:"+pragmas)
	if err != nil {
		t.Fatalf("open test database: %v", err)
	}
	t.Cleanup(func() { database.Close() }) //nolint:errcheck // test cleanup

	if err := database.Ping(); err != nil {
		t.Fatalf("ping test database: %v", err)
	}

	sub, err := fs.Sub(db.MigrationFS, "migrations")
	if err != nil {
		t.Fatalf("migrations sub fs: %v", err)
	}
	goose.SetBaseFS(sub)

	if err := goose.Up(database, "."); err != nil {
		t.Fatalf("run migrations: %v", err)
	}

	return database, repository.New(database)
}