package db_test

import (
	"database/sql"
	"fmt"
	"testing"

	"allaboutapps.dev/aw/go-starter/internal/models"
	"allaboutapps.dev/aw/go-starter/internal/test"
	"allaboutapps.dev/aw/go-starter/internal/util/db"
	"github.com/aarondl/null/v8"
	"github.com/aarondl/sqlboiler/v4/boil"
	"github.com/aarondl/sqlboiler/v4/types"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestWithTransactionSuccess(t *testing.T) {
	test.WithTestDatabase(t, func(sqlDB *sql.DB) {
		ctx := t.Context()

		count, err := models.Users().Count(ctx, sqlDB)
		require.NoError(t, err)
		assert.Positive(t, count)

		err = db.WithTransaction(ctx, sqlDB, func(tx boil.ContextExecutor) error {
			newUser := models.User{
				IsActive: true,
				Username: null.StringFrom("test"),
				Scopes:   types.StringArray{"cms"},
			}

			if err := newUser.Insert(ctx, tx, boil.Infer()); err != nil {
				return fmt.Errorf("failed to insert user: %w", err)
			}

			newCount, err := models.Users().Count(ctx, tx)
			require.NoError(t, err)
			assert.Equal(t, count+1, newCount)

			delCnt, err := models.Users().DeleteAll(ctx, tx)
			if err != nil {
				return fmt.Errorf("failed to delete all users: %w", err)
			}
			assert.Equal(t, newCount, delCnt)

			newCount, err = models.Users().Count(ctx, tx)
			require.NoError(t, err)
			assert.Equal(t, int64(0), newCount)

			return nil
		})
		require.NoError(t, err)

		newCount, err := models.Users().Count(ctx, sqlDB)
		require.NoError(t, err)
		assert.Equal(t, int64(0), newCount)
	})
}

func TestWithTransactionWithError(t *testing.T) {
	test.WithTestDatabase(t, func(sqlDB *sql.DB) {
		ctx := t.Context()

		count, err := models.Users().Count(ctx, sqlDB)
		require.NoError(t, err)
		assert.Positive(t, count)

		err = db.WithTransaction(ctx, sqlDB, func(tx boil.ContextExecutor) error {
			newUser := models.User{
				IsActive: true,
				Username: null.StringFrom("test"),
				Scopes:   types.StringArray{"cms"},
			}

			err := newUser.Insert(ctx, tx, boil.Infer())
			require.NoError(t, err)

			newCount, err := models.Users().Count(ctx, tx)
			require.NoError(t, err)
			assert.Equal(t, count+1, newCount)

			delCnt, err := models.Users().DeleteAll(ctx, tx)
			require.NoError(t, err)
			assert.Equal(t, newCount, delCnt)

			newCount, err = models.Users().Count(ctx, tx)
			require.NoError(t, err)
			assert.Equal(t, int64(0), newCount)

			newUser2 := models.User{
				IsActive: true,
				Username: null.StringFrom("test"),
			}

			return newUser2.Insert(ctx, tx, boil.Infer())
		})
		require.Error(t, err)

		newCount, err := models.Users().Count(ctx, sqlDB)
		require.NoError(t, err)
		assert.Equal(t, count, newCount)
	})
}

func TestWithTransactionWithPanic(t *testing.T) {
	test.WithTestDatabase(t, func(sqlDB *sql.DB) {
		ctx := t.Context()

		count, err := models.Users().Count(ctx, sqlDB)
		require.NoError(t, err)
		assert.Positive(t, count)

		panicFunc := func() {
			_ = db.WithTransaction(ctx, sqlDB, func(tx boil.ContextExecutor) error {
				newUser := models.User{
					IsActive: true,
					Username: null.StringFrom("test"),
					Scopes:   types.StringArray{"cms"},
				}

				err := newUser.Insert(ctx, tx, boil.Infer())
				require.NoError(t, err)

				newCount, err := models.Users().Count(ctx, tx)
				require.NoError(t, err)
				assert.Equal(t, count+1, newCount)

				delCnt, err := models.Users().DeleteAll(ctx, tx)
				require.NoError(t, err)
				assert.Equal(t, newCount, delCnt)

				newCount, err = models.Users().Count(ctx, tx)
				require.NoError(t, err)
				assert.Equal(t, int64(0), newCount)

				panic("some panic")
			})
		}

		require.Panics(t, panicFunc)

		newCount, err := models.Users().Count(ctx, sqlDB)
		require.NoError(t, err)
		assert.Equal(t, count, newCount)
	})
}

func TestDBTypeConversions(t *testing.T) {
	i64 := int64(19)
	res := db.NullIntFromInt64Ptr(&i64)
	assert.Equal(t, 19, res.Int)
	assert.True(t, res.Valid)

	res = db.NullIntFromInt64Ptr(nil)
	assert.False(t, res.Valid)

	f := 19.9999
	res2 := db.NullFloat32FromFloat64Ptr(&f)
	assert.InDelta(t, float32(f), res2.Float32, 0.0001)
	assert.True(t, res2.Valid)

	res2 = db.NullFloat32FromFloat64Ptr(nil)
	assert.False(t, res2.Valid)

	i16 := int16(19)
	res3 := db.NullIntFromInt16Ptr(&i16)
	assert.Equal(t, 19, res3.Int)
	assert.True(t, res3.Valid)

	res4 := db.Int16PtrFromNullInt(res3)
	require.NotEmpty(t, res4)
	assert.Equal(t, i16, *res4)

	res5 := db.Int16PtrFromNullInt(null.IntFromPtr(nil))
	assert.Empty(t, res5)

	i := 7
	res6 := db.Int16PtrFromInt(i)
	require.NotEmpty(t, res6)
	assert.Equal(t, i, int(*res6))

	res7 := db.NullStringIfEmpty("")
	assert.False(t, res7.Valid)

	s := "foo"
	res8 := db.NullStringIfEmpty(s)
	assert.True(t, res8.Valid)
	assert.Equal(t, s, res8.String)
}