package models

import (
	"crypto/sha256"
	"fmt"
	"strings"
)

type Participant struct {
	ID string `csv:"id" gorm:"primaryKey"`

	Firstname string `csv:"firstname"`
	Lastname  string `csv:"lastname"`

	Token uint `csv:"token"`

	Attributes map[string]string
}

func (p *Participant) String() string {
	return fmt.Sprintf("%s %s", p.Lastname, p.Firstname)
}

func (p *Participant) GetID() string {
	return p.ID
}

func (p *Participant) SetID(id string) {
	p.ID = id
}

func (p *Participant) GetHash() string {
	return fmt.Sprintf("%x", sha256.Sum256([]byte(strings.Join(append([]string{p.Lastname, p.Firstname}, p.AttributesToSlice()...), ""))))
}

func (p *Participant) AttributesToSlice() []string {
	result := make([]string, len(p.Attributes)*2)

	for k, v := range p.Attributes {
		result = append(result, k, v)
	}

	return result
}