package mysql

import (
	"context"
	"github.com/go-jet/jet/internal/testutils"
	. "github.com/go-jet/jet/mysql"
	"github.com/go-jet/jet/tests/.gentestdata/mysql/test_sample/model"
	. "github.com/go-jet/jet/tests/.gentestdata/mysql/test_sample/table"
	"gotest.tools/assert"
	"testing"
	"time"
)

func TestUpdateValues(t *testing.T) {
	setupLinkTableForUpdateTest(t)

	query := Link.
		UPDATE(Link.Name, Link.URL).
		SET("Bong", "http://bong.com").
		WHERE(Link.Name.EQ(String("Bing")))

	var expectedSQL = `
UPDATE test_sample.link
SET name = 'Bong', url = 'http://bong.com'
WHERE link.name = 'Bing';
`

	testutils.AssertDebugStatementSql(t, query, expectedSQL, "Bong", "http://bong.com", "Bing")

	testutils.AssertExec(t, query, db)

	links := []model.Link{}

	err := Link.
		SELECT(Link.AllColumns).
		WHERE(Link.Name.EQ(String("Bong"))).
		Query(db, &links)

	assert.NilError(t, err)
	assert.Equal(t, len(links), 1)
	assert.DeepEqual(t, links[0], model.Link{
		ID:   204,
		URL:  "http://bong.com",
		Name: "Bong",
	})
}

func TestUpdateWithSubQueries(t *testing.T) {
	setupLinkTableForUpdateTest(t)

	query := Link.
		UPDATE(Link.Name, Link.URL).
		SET(
			SELECT(String("Bong")),
			SELECT(Link2.URL).
				FROM(Link2).
				WHERE(Link2.Name.EQ(String("Youtube"))),
		).
		WHERE(Link.Name.EQ(String("Bing")))

	expectedSQL := `
UPDATE test_sample.link
SET name = (
     SELECT ?
), url = (
     SELECT link2.url AS "link2.url"
     FROM test_sample.link2
     WHERE link2.name = ?
)
WHERE link.name = ?;
`
	testutils.AssertStatementSql(t, query, expectedSQL, "Bong", "Youtube", "Bing")

	testutils.AssertExec(t, query, db)
}

func TestUpdateAndReturning(t *testing.T) {
	defer func() {
		r := recover()
		assert.Equal(t, r, "jet: MySQL dialect does not support RETURNING.")
	}()

	stmt := Link.
		UPDATE(Link.Name, Link.URL).
		SET("DuckDuckGo", "http://www.duckduckgo.com").
		WHERE(Link.Name.EQ(String("Ask"))).
		RETURNING(Link.AllColumns)

	stmt.Query(db, &struct{}{})
}

func TestUpdateWithModelData(t *testing.T) {
	setupLinkTableForUpdateTest(t)

	link := model.Link{
		ID:   201,
		URL:  "http://www.duckduckgo.com",
		Name: "DuckDuckGo",
	}

	stmt := Link.
		UPDATE(Link.AllColumns).
		MODEL(link).
		WHERE(Link.ID.EQ(Int(int64(link.ID))))

	expectedSQL := `
UPDATE test_sample.link
SET id = ?, url = ?, name = ?, description = ?
WHERE link.id = ?;
`
	testutils.AssertStatementSql(t, stmt, expectedSQL, int32(201), "http://www.duckduckgo.com", "DuckDuckGo", nil, int64(201))

	testutils.AssertExec(t, stmt, db)
}

func TestUpdateWithModelDataAndPredefinedColumnList(t *testing.T) {

	setupLinkTableForUpdateTest(t)

	link := model.Link{
		ID:   201,
		URL:  "http://www.duckduckgo.com",
		Name: "DuckDuckGo",
	}

	updateColumnList := ColumnList(Link.Description, Link.Name, Link.URL)

	stmt := Link.
		UPDATE(updateColumnList).
		MODEL(link).
		WHERE(Link.ID.EQ(Int(int64(link.ID))))

	var expectedSQL = `
UPDATE test_sample.link
SET description = NULL, name = 'DuckDuckGo', url = 'http://www.duckduckgo.com'
WHERE link.id = 201;
`
	//fmt.Println(stmt.DebugSql())

	testutils.AssertDebugStatementSql(t, stmt, expectedSQL, nil, "DuckDuckGo", "http://www.duckduckgo.com", int64(201))

	testutils.AssertExec(t, stmt, db)
}

func TestUpdateWithInvalidModelData(t *testing.T) {
	defer func() {
		r := recover()

		assert.Equal(t, r, "missing struct field for column : id")
	}()

	setupLinkTableForUpdateTest(t)

	link := struct {
		Ident       int
		URL         string
		Name        string
		Description *string
		Rel         *string
	}{
		Ident: 201,
		URL:   "http://www.duckduckgo.com",
		Name:  "DuckDuckGo",
	}

	stmt := Link.
		UPDATE(Link.AllColumns).
		MODEL(link).
		WHERE(Link.ID.EQ(Int(int64(link.Ident))))

	stmt.Sql()
}

func TestUpdateQueryContext(t *testing.T) {
	setupLinkTableForUpdateTest(t)

	updateStmt := Link.
		UPDATE(Link.Name, Link.URL).
		SET("Bong", "http://bong.com").
		WHERE(Link.Name.EQ(String("Bing")))

	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Microsecond)
	defer cancel()

	time.Sleep(10 * time.Millisecond)

	dest := []model.Link{}
	err := updateStmt.QueryContext(ctx, db, &dest)

	assert.Error(t, err, "context deadline exceeded")
}

func TestUpdateExecContext(t *testing.T) {
	setupLinkTableForUpdateTest(t)

	updateStmt := Link.
		UPDATE(Link.Name, Link.URL).
		SET("Bong", "http://bong.com").
		WHERE(Link.Name.EQ(String("Bing")))

	ctx, cancel := context.WithTimeout(context.Background(), 1*time.Microsecond)
	defer cancel()

	time.Sleep(10 * time.Millisecond)

	_, err := updateStmt.ExecContext(ctx, db)

	assert.Error(t, err, "context deadline exceeded")
}

func setupLinkTableForUpdateTest(t *testing.T) {

	cleanUpLinkTable(t)

	_, err := Link.INSERT(Link.ID, Link.URL, Link.Name, Link.Description).
		VALUES(200, "http://www.postgresqltutorial.com", "PostgreSQL Tutorial", DEFAULT).
		VALUES(201, "http://www.ask.com", "Ask", DEFAULT).
		VALUES(202, "http://www.ask.com", "Ask", DEFAULT).
		VALUES(203, "http://www.yahoo.com", "Yahoo", DEFAULT).
		VALUES(204, "http://www.bing.com", "Bing", DEFAULT).
		Exec(db)

	assert.NilError(t, err)
}