package main

import (
	"bytes"
	"encoding/json"
	"net/http"
)

// Webhook is the parent structure fired off to Discord.
type Webhook struct {
	Embeds []Embed `json:"embeds,omitifempty"`
}

// EmbedField is an individual field being embedded in a message.
type EmbedField struct {
	Name   string `json:"name"`
	Value  string `json:"value"`
	Inline bool   `json:"inline"`
}

// EmbedFooter is the message footer.
type EmbedFooter struct {
	Text    string `json:"text"`
	IconURL string `json:"icon_url"`
}

// Embed is a set of embedded fields and a footer.
type Embed struct {
	Title       string       `json:"title"`
	Description string       `json:"description"`
	URL         string       `json:"url"`
	Fields      []EmbedField `json:"fields"`
	Footer      EmbedFooter  `json:"footer"`
}

// Send returns a request for a Discord webhook.
func Send(whurl string, w Webhook) *http.Request {
	data, err := json.Marshal(&w)
	if err != nil {
		panic(err)
	}

	req, err := http.NewRequest(http.MethodPost, whurl, bytes.NewBuffer(data))
	if err != nil {
		panic(err)
	}

	req.Header.Set("Content-Type", "application/json")

	return req
}

// Validate validates the response from Discord.
func Validate(resp *http.Response) error {
	if resp.StatusCode != http.StatusOK {
		return NewError(http.StatusOK, resp)
	}

	return nil
}