184 lines
5.7 KiB
Go
184 lines
5.7 KiB
Go
package api
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"arimelody.me/arimelody.me/global"
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"arimelody.me/arimelody.me/music/model"
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)
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func ServeAllTracks() http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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type track struct {
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ID string `json:"id"`
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Title string `json:"title"`
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}
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var tracks = []track{}
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err := global.DB.Select(&tracks, "SELECT id, title FROM musictrack")
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if err != nil {
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fmt.Printf("FATAL: Failed to pull tracks from DB: %s\n", err)
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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}
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w.Header().Add("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(tracks)
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if err != nil {
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fmt.Printf("FATAL: Failed to serve all tracks: %s\n", err)
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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}
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})
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}
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func ServeTrack(track model.Track) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path == "/" {
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ServeAllTracks().ServeHTTP(w, r)
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return
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}
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var trackID = r.URL.Path[1:]
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var track = model.Track{}
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err := global.DB.Get(&track, "SELECT * from musictrack WHERE id=$1", trackID)
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if err != nil {
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http.NotFound(w, r)
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return
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}
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var releases = []*model.Release{}
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err = global.DB.Select(&releases,
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"SELECT * FROM musicrelease JOIN musicreleasetrack AS mrt "+
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"WHERE mrt.track=$1 "+
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"ORDER BY release_date",
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track.ID,
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)
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if err != nil {
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fmt.Printf("FATAL: Failed to pull track releases for %s from DB: %s\n", trackID, err)
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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}
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type response struct {
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model.Track
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Releases []*model.Release
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}
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w.Header().Add("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(response{ track, releases })
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if err != nil {
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fmt.Printf("FATAL: Failed to serve track %s: %s\n", trackID, err)
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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}
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})
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}
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func CreateTrack() http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodPost {
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http.NotFound(w, r)
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return
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}
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var track model.Track
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err := json.NewDecoder(r.Body).Decode(&track)
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if err != nil {
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http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
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return
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}
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if track.Title == "" {
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http.Error(w, "Track title cannot be empty\n", http.StatusBadRequest)
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return
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}
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var trackID string
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err = global.DB.Get(&trackID,
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"INSERT INTO musictrack (title, description, lyrics, preview_url) "+
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"VALUES ($1, $2, $3, $4) "+
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"RETURNING id",
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track.Title,
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track.Description,
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track.Lyrics,
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track.PreviewURL)
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if err != nil {
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fmt.Printf("FATAL: Failed to create track: %s\n", err)
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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return
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}
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w.Header().Add("Content-Type", "text/plain")
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w.WriteHeader(http.StatusCreated)
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w.Write([]byte(trackID))
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})
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}
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func UpdateTrack(track model.Track) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodPut || r.URL.Path == "/" {
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http.NotFound(w, r)
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return
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}
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var update model.Track
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err := json.NewDecoder(r.Body).Decode(&update)
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if err != nil {
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http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
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return
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}
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if update.Title == "" {
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http.Error(w, "Track title cannot be empty\n", http.StatusBadRequest)
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return
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}
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var trackID = r.URL.Path[1:]
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var track = model.Track{}
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err = global.DB.Get(&track, "SELECT * from musictrack WHERE id=$1", trackID)
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if err != nil {
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http.NotFound(w, r)
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return
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}
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_, err = global.DB.Exec(
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"UPDATE musictrack "+
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"SET title=$2, description=$3, lyrics=$4, preview_url=$5 "+
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"WHERE id=$1",
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track.ID,
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track.Title,
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track.Description,
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track.Lyrics,
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track.PreviewURL)
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if err != nil {
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fmt.Printf("Failed to update track %s: %s\n", track.ID, err)
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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return
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}
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w.Header().Add("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(track)
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if err != nil {
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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}
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})
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}
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func DeleteTrack(track model.Track) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodDelete || r.URL.Path == "/" {
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http.NotFound(w, r)
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return
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}
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var trackID = r.URL.Path[1:]
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_, err := global.DB.Exec(
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"DELETE FROM musictrack "+
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"WHERE id=$1",
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trackID)
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if err != nil {
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fmt.Printf("Failed to delete track %s: %s\n", trackID, err)
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http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
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}
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})
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}
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