Added support for downloading through search using -s flag

- Support for downloading only one track through search.
- Added some types and cleaned previous json decoding methods.
- Little validation : can't use <url> with `--search-and-download` flag.

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/manifoldco/promptui v0.9.0
 	github.com/schollz/progressbar/v3 v3.13.0
 	github.com/spf13/cobra v1.6.1
+	github.com/spf13/pflag v1.0.5
 )
 
 require (
@@ -21,7 +22,6 @@ require (
 	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
 	github.com/rivo/uniseg v0.4.3 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
 	golang.org/x/net v0.0.0-20210916014120-12bc252f5db8 // indirect
 	golang.org/x/sys v0.4.0 // indirect
 	golang.org/x/term v0.4.0 // indirect

internal/core.go

@@ -8,13 +8,16 @@ import (
 )
 
 var defaultQuality string = "low"
+var soundData = &soundcloud.SoundData{}
 
-func Sc(args []string, bestQuality bool) {
+func Sc(args []string, downloadPath string, bestQuality bool, search bool) {
 
-	url := args[0]
-	downloadPath := args[len(args)-1]
+	url := ""
+	if len(args) > 0 {
+		url = args[0]
+	}
 
-	if !initValidations(url) {
+	if url != "" && !initValidations(url) {
 		return
 	}
 
@@ -24,16 +27,25 @@ func Sc(args []string, bestQuality bool) {
 		fmt.Println("Something went wrong while getting the Client Id!")
 		return
 	}
+	// --search-and-download
+	if search {
+		keyword := getUserSearch()
+		searchResult := soundcloud.SearchTracksByKeyword(keyword, 0, clientId)
 
-	soundData := soundcloud.GetSoundMetaData(url, clientId)
-	if soundData == nil {
-		fmt.Printf("%s URL : %s doesn't return a valid track. Track is publicly accessed ?", theme.Red("[+]"), theme.Magenta(url))
-		return
-	}
+		// select one to download
+		soundData = selectSearchUrl(searchResult)
+	} else {
+
+		soundData = soundcloud.GetSoundMetaData(url, clientId)
+		if soundData == nil {
+			fmt.Printf("%s URL : %s doesn't return a valid track. Track is publicly accessed ?", theme.Red("[+]"), theme.Magenta(url))
+			return
+		}
 
-	fmt.Printf("%s Track found. Title : %s - Duration : %s\n", theme.Green("[+]"), theme.Magenta(soundData.Title), theme.Magenta(theme.FormatTime(soundData.Duration)))
+		fmt.Printf("%s Track found. Title : %s - Duration : %s\n", theme.Green("[+]"), theme.Magenta(soundData.Title), theme.Magenta(theme.FormatTime(soundData.Duration)))
+	}
 
-	list := soundcloud.GetFormattedDL(soundData.Transcodes.Transcodings, clientId)
+	list := soundcloud.GetFormattedDL(soundData, clientId)
 
 	// show available download options
 	qualities := getQualities(list)

internal/utils.go

@@ -79,3 +79,41 @@ func getHighestQuality(qualities []string) string {
 	}
 	return ""
 }
+
+// select a url to download
+func selectSearchUrl(searches *soundcloud.SearchResult) *soundcloud.SoundData {
+
+	titles := make([]string, 0)
+
+	for _, res := range searches.Sounds {
+		titles = append(titles, res.Title)
+	}
+	prompt := promptui.Select{
+		Label: "Choose a track to download :",
+		Items: titles,
+	}
+	ind, _, err := prompt.Run()
+	if err != nil {
+		os.Exit(0)
+	}
+
+	return &searches.Sounds[ind]
+}
+
+// prompt the input search for a keyword
+func getUserSearch() string {
+
+	prompt := promptui.Prompt{
+		Label:   "🔍Search: ",
+		Default: "surah yasin",
+	}
+
+	result, err := prompt.Run()
+
+	if err != nil {
+		os.Exit(0)
+	}
+
+	return result
+
+}

pkg/soundcloud/page.go

@@ -15,6 +15,7 @@ import (
 )
 
 var Sound *SoundData
+var SearchLimit = 6
 
 // extract some meta data under : window.__sc_hydration
 // check if the track exists and open to public
@@ -35,6 +36,11 @@ func GetSoundMetaData(url string, clientId string) *SoundData {
 
 func GetClientId(url string) string {
 
+	if url == "" {
+		// the best url ever, if you find this then you're so cool :D I love you :DDD
+		url = "https://soundcloud.com/ahmed-yehia0"
+	}
+
 	statusCode, bodyData, err := client.Get(url)
 
 	if err != nil {
@@ -74,9 +80,10 @@ func GetClientId(url string) string {
 	return matches[0][1]
 }
 
-func GetFormattedDL(data []Transcode, clientId string) []DownloadTrack {
+func GetFormattedDL(track *SoundData, clientId string) []DownloadTrack {
 	ext := "mp3" // the default extension type
 	tracks := make([]DownloadTrack, 0)
+	data := track.Transcodes.Transcodings
 
 	for _, tcode := range data {
 		url := tcode.ApiUrl + "?client_id=" + clientId
@@ -94,7 +101,7 @@ func GetFormattedDL(data []Transcode, clientId string) []DownloadTrack {
 		tmpTrack := DownloadTrack{
 			Url:       mediaUrl.Url,
 			Quality:   q,
-			SoundData: Sound,
+			SoundData: track,
 			Ext:       ext,
 		}
 		tracks = append(tracks, tmpTrack)
@@ -112,3 +119,19 @@ func mapQuality(url string, format string) string {
 	}
 	return "low"
 }
+
+func SearchTracksByKeyword(keyword string, offset int, clientId string) *SearchResult {
+
+	apiUrl := GetSeachAPIUrl(keyword, SearchLimit, offset, clientId)
+
+	statusCode, body, err := client.Get(apiUrl)
+
+	if err != nil && statusCode != http.StatusOK {
+		return nil
+	}
+
+	var result = SearchResult{}
+	json.Unmarshal(body, &result)
+
+	return &result
+}

pkg/soundcloud/types.go

@@ -43,3 +43,8 @@ type DownloadTrack struct {
 	Ext       string
 	SoundData *SoundData
 }
+
+type SearchResult struct {
+	Sounds []SoundData `json:"collection"`
+	Next   string      `json:"next_href"`
+}