package cmd

import (
	"errors"
	"strconv"
	"strings"
	"time"
)

type Embed struct {
	Author      Author  `json:"author,omitempty"`
	Title       string  `json:"title,omitempty"`
	URL         string  `json:"url,omitempty"`
	Description string  `json:"description,omitempty"`
	Timestamp   string  `json:"timestamp,omitempty"`
	Color       int64   `json:"color,omitempty"`
	Fields      []Field `json:"fields,omitempty"`
	Thumbnail   Image   `json:"thumbnail,omitempty"`
	Image       Image   `json:"image,omitempty"`
	Video       Video   `json:"video,omitempty"`
	Footer      Footer  `json:"footer,omitempty"`
}

type Author struct {
	Name    string `json:"name"`
	URL     string `json:"url"`
	IconURL string `json:"icon_url"`
}

type Field struct {
	Name   string `json:"name"`
	Value  string `json:"value"`
	Inline bool   `json:"inline,omitempty"`
}

type Footer struct {
	Text    string `json:"text"`
	IconURL string `json:"icon_url,omitempty"`
}

type Image struct {
	URL string `json:"url"`
}

type Video struct {
	URL string `json:"url"`
}

func (w *Webhook) NewEmbedWithURL(URL string) *Embed {
	emb := Embed{URL: URL}
	w.Embeds = append(w.Embeds, &emb)
	return &emb
}

func (w *Webhook) NewEmbed() *Embed {
	emb := Embed{}
	w.Embeds = append(w.Embeds, &emb)
	return &emb
}

func (e *Embed) SetTitle(Title string) *Embed {
	e.Title = Title
	return e
}

func (e *Embed) SetText(Description string) *Embed {
	e.Description = Description
	return e
}

func (e *Embed) SetAuthor(Name, URL, IconURL string) *Embed {
	e.Author = Author{Name, URL, IconURL}
	return e
}

func (e *Embed) SetColor(color string) (*Embed, error) {
	color = strings.Replace(color, "0x", "", -1)
	color = strings.Replace(color, "0X", "", -1)
	color = strings.Replace(color, "#", "", -1)
	colorInt, err := strconv.ParseInt(color, 16, 64)
	if err != nil {
		return nil, errors.New("Invalid hex code passed")
	}
	e.Color = colorInt
	return e, nil
}

func (e *Embed) SetThumbnail(URL string) *Embed {
	e.Thumbnail = Image{URL}
	return e
}

func (e *Embed) SetImage(URL string) *Embed {
	e.Image = Image{URL}
	return e
}

func (e *Embed) SetVideo(URL string) *Embed {
	e.Video = Video{URL}
	return e
}

func (e *Embed) SetFooter(Text, IconURL string) *Embed {
	e.Footer = Footer{Text, IconURL}
	return e
}

func (e *Embed) SetTimestamp(timestamp time.Time) *Embed {
	e.Timestamp = timestamp.Format(time.RFC3339)
	return e
}

func (e *Embed) AddField(Name, Value string, Inline bool) *Embed {
	e.Fields = append(e.Fields, Field{Name, Value, Inline})
	return e
}