package config

import (
	"bytes"
	"io/ioutil"

	"github.com/BurntSushi/toml"
)

// Config defines config fields
type Config struct {
	DatabaseConnection  string
	BindAddress         string
	AssetsDirectory     string
	TemplatesDirectory  string
	ContentDirectory    string
	ContentWebDirectory string
	Snapchat            Snapchat
	Twitter             Twitter
	Instagram           Instagram
	Tumblr              Tumblr
	Folder              Folder
}

// Folder defines fields for Folder configuration
type Folder struct {
	Folder string
}

// Tumblr defines fields for Tumblr configuration
type Tumblr struct {
	Tag    string
	APIKey string
}

// Instagram defines fields for Instagram configuration
type Instagram struct {
	Tag string
}

// Twitter defines fields for Twitter configuration
type Twitter struct {
	ConsumerKey      string
	ConsumerSecret   string
	OAuthToken       string
	OAuthTokenSecret string
	Filter           []string
}

// Snapchat defines fields for Snapchat configuration
type Snapchat struct {
	APIBase          string
	UserAgent        string
	UserName         string
	GetConversations SnapchatEndpoint
	GetBlob          SnapchatEndpoint
	MarkAsSeen       SnapchatEndpoint
}

// SnapchatEndpoint defines fields for Snapchat endpoint configuration
type SnapchatEndpoint struct {
	UUID            string
	ClientAuthToken string
	RequestToken    string
	Timestamp       string
}

// C is the config handler
var C Config

// LoadConfig loads the configuration from given path
func LoadConfig(path string) error {
	_, e := toml.DecodeFile(path, &C)
	return e
}

// WriteConfig writes the configuration to the given path
func WriteConfig(path string) error {
	buf := new(bytes.Buffer)
	err := toml.NewEncoder(buf).Encode(C)
	if err != nil {
		return err
	}
	err = ioutil.WriteFile(path, buf.Bytes(), 0644)
	return err
}