86 lines
2.2 KiB
Go
86 lines
2.2 KiB
Go
/*
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* MumbleDJ
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* By Matthieu Grieger
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* services/youtube/api.go
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* Copyright (c) 2014, 2015 Matthieu Grieger (MIT License)
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*/
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package youtube
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"strings"
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"github.com/jmoiron/jsonq"
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)
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// Collection of metadata for a YouTube video.
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type YouTubeVideo struct {
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id string
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title string
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duration string
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secondsDuration string
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thumbnail string
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}
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// Collection of metadata for a YouTube playlist.
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type YouTubePlaylist struct {
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id string
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title string
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duration string
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secondsDuration string
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}
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// Retrieves the metadata for a new YouTube video, and creates and returns a
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// YouTubeVideo type.
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func GetYouTubeVideo(id string) (*YouTubeVideo, error) {
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url := fmt.Sprintf("https://www.googleapis.com/youtube/v3/videos?part=snippet%2CcontentDetails&id=%s&key=%s",
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id, os.Getenv("YOUTUBE_API_KEY"))
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jsonString := ""
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if response, err := http.Get(url); err == nil {
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defer response.Body.Close()
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if response.StatusCode == 200 {
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if body, err := ioutil.ReadAll(response.Body); err == nil {
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jsonString = string(body)
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}
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} else {
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if response.StatusCode == 403 {
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return nil, errors.New("Invalid API key supplied.")
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} else {
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return nil, errors.New("Invalid YouTube ID supplied.")
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}
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}
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} else {
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return nil, errors.New("An error occurred while receiving HTTP GET response.")
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}
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jsonData := map[string]interface{}{}
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decoder := json.NewDecoder(strings.NewReader(jsonString))
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decoder.Decode(&jsonData)
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jq := jsonq.NewQuery(jsonData)
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title, _ := jq.String("items", "0", "snippet", "title")
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thumbnail, _ := jq.String("items", "0", "snippet", "thumbnails", "high", "url")
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duration, _ := jq.String("items", "0", "contentDetails", "duration")
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minutes := int(duration[2:strings.Index(duration, "M")])
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seconds := int(duration[strings.Index(duration, "M")+1 : len(duration)-1])
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totalSeconds := (minutes * 60) + seconds
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durationString := fmt.Sprintf("%d:%d", minutes, seconds)
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video := &YoutubeVideo{
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id: id,
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title: title,
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duration: durationString,
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secondsDuration: totalSeconds,
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thumbnail: thumbnail,
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}
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return video, nil
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}
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