/*
Copyright 2023 The Kubernetes Authors.

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 ini

// Copy from https://github.com/aws/aws-sdk-go
// May have been modified by Beijing Volcanoengine Technology Ltd.

import (
	"io"
	"os"

	"k8s.io/autoscaler/cluster-autoscaler/cloudprovider/volcengine/volcengine-go-sdk/volcengine/volcengineerr"
)

// OpenFile takes a path to a given file, and will open  and parse
// that file.
func OpenFile(path string) (Sections, error) {
	f, err := os.Open(path)
	if err != nil {
		return Sections{}, volcengineerr.New(ErrCodeUnableToReadFile, "unable to open file", err)
	}
	defer f.Close()

	return Parse(f)
}

// Parse will parse the given file using the shared config
// visitor.
func Parse(f io.Reader) (Sections, error) {
	tree, err := ParseAST(f)
	if err != nil {
		return Sections{}, err
	}

	v := NewDefaultVisitor()
	if err = Walk(tree, v); err != nil {
		return Sections{}, err
	}

	return v.Sections, nil
}

// ParseBytes will parse the given bytes and return the parsed sections.
func ParseBytes(b []byte) (Sections, error) {
	tree, err := ParseASTBytes(b)
	if err != nil {
		return Sections{}, err
	}

	v := NewDefaultVisitor()
	if err = Walk(tree, v); err != nil {
		return Sections{}, err
	}

	return v.Sections, nil
}