package parser

import (
	"go/ast"
	"go/parser"
	"go/token"
	"io"
	"io/ioutil"
)

type parsedFile struct {
	File    string
	FileSet *token.FileSet
	Ast     *ast.File
}

// parseFileMode ...
func parseFileMode(f string, mode parser.Mode) (parsedFile, error) {
	pf := parsedFile{
		File:    f,
		FileSet: token.NewFileSet(),
	}

	b, err := ioutil.ReadFile(f)
	if err != nil {
		return pf, err
	}
	src := string(b)

	pff, err := parser.ParseFile(pf.FileSet, f, src, mode)
	if err != nil && err != io.EOF {
		return pf, err
	}
	pf.Ast = pff

	return pf, nil
}

// parseFile ...
func parseFile(f string) (parsedFile, error) {
	return parseFileMode(f, 0)
}