package main

import (
	"encoding/json"
	"fmt"
)

func getKfSendURL() (url string) {
	atk, _ := GetAccessToken()
	url = fmt.Sprintf("https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=%s", atk)
	return
}

type sendTxtMsg struct {
	ToUser  string `json:"touser"`
	MsgType string `json:"msgtype"`
	Text    struct {
		Content string `json:"content"`
	} `json:"text"`
}

func kfSendTxt(user, txt string) {
	u := getKfSendURL()

	s := sendTxtMsg{}
	s.MsgType = "text"
	s.Text.Content = txt
	s.ToUser = user

	j, _ := json.Marshal(s)
	postJSON(j, u)
}

type sendPicMsg struct {
	ToUser  string `json:"touser"`
	MsgType string `json:"msgtype"`
	Image   struct {
		MediaID string `json:"media_id"`
	} `json:"image"`
}

func kfSendPic(user, pic string) {
	mID := uploadImage(pic)
	kfSendPicByMediaID(user, mID)
}

func kfSendPicByMediaID(user, mediaID string) {
	u := getKfSendURL()
	s := sendPicMsg{}
	s.ToUser = user
	s.MsgType = "image"
	s.Image.MediaID = mediaID

	j, _ := json.Marshal(s)
	postJSON(j, u)
}

type sendVoiceMsg struct {
	ToUser  string `json:"touser"`
	MsgType string `json:"msgtype"`
	Voice   struct {
		MediaID string `json:"media_id"`
	} `json:"voice"`
}

func kfSendVoice(user, path string) {
	mID := uploadVoice(path)
	kfSendVoiceByMediaID(user, mID)
}

func kfSendVoiceByMediaID(user, mediaID string) {
	u := getKfSendURL()
	s := sendVoiceMsg{}
	s.ToUser = user
	s.MsgType = "voice"
	s.Voice.MediaID = mediaID

	j, _ := json.Marshal(s)
	postJSON(j, u)
}

type sendVideoMsg struct {
	ToUser  string `json:"touser"`
	MsgType string `json:"msgtype"`
	Video   struct {
		MediaID      string `json:"media_id"`
		ThumbMediaID string `json:"thumb_media_id"`
		Title        string `json:"title"`
		Description  string `json:"description"`
	} `json:"video"`
}

func kfSendVideo(user, path, title, description, thumb string) {
	mID := uploadVideo(path)
	tID := uploadThumb(thumb)
	kfSendVideoByMediaID(user, mID, title, description, tID)
}

func kfSendVideoByMediaID(user, mediaID, title, description, tID string) {
	u := getKfSendURL()
	s := sendVideoMsg{}
	s.ToUser = user
	s.MsgType = "video"
	s.Video.MediaID = mediaID
	s.Video.Description = description
	s.Video.Title = title
	s.Video.ThumbMediaID = tID

	j, _ := json.Marshal(s)
	postJSON(j, u)
}