// Copyright Sam Xie
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package otelsql

import (
	"database/sql/driver"
	"errors"
)

var (
	_ driver.Stmt = (*mockLegacyStmt)(nil)
	_ MockStmt    = (*mockLegacyStmt)(nil)
)

func newMockLegacyStmt(shouldError bool) *mockLegacyStmt {
	return &mockLegacyStmt{shouldError: shouldError}
}

type mockLegacyStmt struct {
	shouldError bool

	execArgs  []driver.Value
	execCount int

	queryArgs  []driver.Value
	queryCount int
}

func (m *mockLegacyStmt) QueryContextCount() int {
	return m.queryCount
}

func (m *mockLegacyStmt) QueryContextArgs() []driver.NamedValue {
	return nil
}

func (m *mockLegacyStmt) QueryArgs() []driver.Value {
	return m.queryArgs
}

func (m *mockLegacyStmt) ExecArgs() []driver.Value {
	return m.execArgs
}

func (m *mockLegacyStmt) ExecContextCount() int {
	return m.execCount
}

func (m *mockLegacyStmt) ExecContextArgs() []driver.NamedValue {
	return nil
}

func (m *mockLegacyStmt) Close() error {
	return nil
}

func (m *mockLegacyStmt) NumInput() int {
	return 0
}

func (m *mockLegacyStmt) Exec(args []driver.Value) (driver.Result, error) {
	m.execArgs = args
	m.execCount++
	if m.shouldError {
		return nil, errors.New("exec")
	}
	return nil, nil //nolint:nilnil
}

func (m *mockLegacyStmt) Query(args []driver.Value) (driver.Rows, error) {
	m.queryArgs = args
	m.queryCount++
	if m.shouldError {
		return nil, errors.New("query")
	}
	return nil, nil //nolint:nilnil
}