package repository

import (
	"database/sql"
	"testing"

	"github.com/gochat/gochat/internal/model"
)

func TestOpenSQLiteDBReusesSchemaAndIsolatesTests(t *testing.T) {
	var firstPool *sql.DB
	t.Run("write", func(t *testing.T) {
		db := openSQLiteDB(t, []interface{}{&model.Account{}})
		var err error
		firstPool, err = db.DB()
		if err != nil {
			t.Fatalf("get sql.DB: %v", err)
		}
		if err := db.Create(&model.Account{Name: "isolated"}).Error; err != nil {
			t.Fatalf("create account: %v", err)
		}
	})

	t.Run("read", func(t *testing.T) {
		db := openSQLiteDB(t, []interface{}{&model.Account{}})
		secondPool, err := db.DB()
		if err != nil {
			t.Fatalf("get sql.DB: %v", err)
		}
		if firstPool != secondPool {
			t.Fatal("SQLite schema pool was recreated between tests")
		}

		var count int64
		if err := db.Model(&model.Account{}).Count(&count).Error; err != nil {
			t.Fatalf("count accounts: %v", err)
		}
		if count != 0 {
			t.Fatalf("previous test data leaked: got %d accounts", count)
		}
	})
}