package csvparser

import (
	"fmt"
	"strings"
	"unicode/utf8"
)

type Parser struct {
	enclosers [][]rune
	delimiter rune
	fields    []string
}

func (p *Parser) Initialize(delimiter string, enclosers []string, lineFormat string) error {
	if utf8.RuneCountInString(delimiter) != 1 {
		return fmt.Errorf("delimiter shoud be 1 char length")
	}
	p.enclosers = make([][]rune, 0)
	for _, str := range enclosers {
		p.enclosers = append(p.enclosers, []rune(str))
	}
	p.delimiter = []rune(delimiter)[0]
	for _, pair := range enclosers {
		if utf8.RuneCountInString(pair) != 2 {
			return fmt.Errorf("encoloser should contain two characters: %s", pair)
		}
	}
	// line format is in the form of: field1 field2 ignore ...
	// if field name is ignore, it is parsed but not retained
	p.fields = strings.Split(lineFormat, " ")

	return nil
}

func (p *Parser) Parse(line string) (map[string]string, error) {
	ret := make(map[string]string)
	for index, r := range line {
		if r == p.delimiter {

		}
		for _, encloser := range p.enclosers {
			runes = []rune(encloser)
		}
	}

	return ret, nil
}