package model

import (
	"testing"

	"github.com/glebarez/sqlite"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"
)

func setupUserAssetGroupDB(t *testing.T) *gorm.DB {
	t.Helper()

	db, err := gorm.Open(sqlite.Open("file:user_asset_groups?mode=memory&cache=shared"), &gorm.Config{
		Logger: logger.Default.LogMode(logger.Silent),
	})
	require.NoError(t, err)

	sqlDB, err := db.DB()
	require.NoError(t, err)
	sqlDB.SetMaxOpenConns(1)

	origDB := DB
	DB = db
	require.NoError(t, db.AutoMigrate(&UserAssetGroup{}))

	t.Cleanup(func() {
		DB = origDB
		require.NoError(t, sqlDB.Close())
	})

	return db
}

func TestUserAssetGroupScopesByUserAndChannel(t *testing.T) {
	setupUserAssetGroupDB(t)

	require.NoError(t, CreateUserAssetGroup(10, 101, "group-a"))
	require.NoError(t, CreateUserAssetGroup(11, 101, "group-b"))
	require.NoError(t, CreateUserAssetGroup(10, 102, "group-c"))

	binding, err := GetUserAssetGroup(10, 101)
	require.NoError(t, err)
	require.NotNil(t, binding)
	assert.Equal(t, "group-a", binding.GroupId)
}

func TestUserAssetGroupRejectsDuplicateUserChannel(t *testing.T) {
	setupUserAssetGroupDB(t)

	require.NoError(t, CreateUserAssetGroup(10, 101, "first"))
	assert.Error(t, CreateUserAssetGroup(10, 101, "second"))
}

func TestGetUserAssetGroupReturnsNilWhenNotFound(t *testing.T) {
	setupUserAssetGroupDB(t)

	binding, err := GetUserAssetGroup(10, 101)
	require.NoError(t, err)
	assert.Nil(t, binding)
}