507 lines
18 KiB
Go
507 lines
18 KiB
Go
package api
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import (
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"bufio"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"io/fs"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"time"
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"arimelody.me/arimelody.me/admin"
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"arimelody.me/arimelody.me/global"
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controller "arimelody.me/arimelody.me/music/controller"
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"arimelody.me/arimelody.me/music/model"
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)
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type releaseBodyJSON struct {
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ID string `json:"id"`
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Visible *bool `json:"visible"`
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Title *string `json:"title"`
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Description *string `json:"description"`
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ReleaseType *model.ReleaseType `json:"type"`
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ReleaseDate *string `json:"releaseDate"`
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Artwork *string `json:"artwork"`
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Buyname *string `json:"buyname"`
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Buylink *string `json:"buylink"`
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}
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func ServeCatalog() http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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type CatalogItem struct {
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ID string `json:"id"`
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Title string `json:"title"`
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Description string `json:"description"`
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ReleaseType model.ReleaseType `json:"type"`
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ReleaseDate time.Time `json:"releaseDate"`
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Artwork string `json:"artwork"`
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Buyname string `json:"buyname"`
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Buylink string `json:"buylink"`
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Links []*model.Link `json:"links"`
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}
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catalog := []CatalogItem{}
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authorised := admin.GetSession(r) != nil
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for _, release := range global.Releases {
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if !release.Visible && !authorised {
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continue
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}
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catalog = append(catalog, CatalogItem{
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ID: release.ID,
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Title: release.Title,
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Description: release.Description,
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ReleaseType: release.ReleaseType,
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ReleaseDate: release.ReleaseDate,
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Artwork: release.Artwork,
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Buyname: release.Buyname,
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Buylink: release.Buylink,
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Links: release.Links,
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})
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}
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w.Header().Add("Content-Type", "application/json")
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err := json.NewEncoder(w).Encode(catalog)
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if err != nil {
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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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})
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}
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func CreateRelease() 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 data releaseBodyJSON
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err := json.NewDecoder(r.Body).Decode(&data)
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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 data.ID == "" {
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http.Error(w, "Release ID cannot be empty\n", http.StatusBadRequest)
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return
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}
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title := data.ID
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if data.Title != nil && *data.Title != "" {
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title = *data.Title
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}
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description := ""
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if data.Description != nil && *data.Description != "" { description = *data.Description }
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releaseType := model.Single
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if data.ReleaseType != nil && *data.ReleaseType != "" { releaseType = *data.ReleaseType }
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releaseDate := time.Time{}
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if data.ReleaseDate != nil && *data.ReleaseDate != "" {
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releaseDate, err = time.Parse("2006-01-02T15:04", *data.ReleaseDate)
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if err != nil {
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http.Error(w, "Invalid release date", http.StatusBadRequest)
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return
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}
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} else {
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releaseDate = time.Date(time.Now().Year(), time.Now().Month(), time.Now().Day(), 0, 0, 0, 0, time.UTC)
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}
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artwork := "/img/default-cover-art.png"
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if data.Artwork != nil && *data.Artwork != "" { artwork = *data.Artwork }
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buyname := ""
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if data.Buyname != nil && *data.Buyname != "" { buyname = *data.Buyname }
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buylink := ""
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if data.Buylink != nil && *data.Buylink != "" { buylink = *data.Buylink }
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if global.GetRelease(data.ID) != nil {
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http.Error(w, fmt.Sprintf("Release %s already exists\n", data.ID), http.StatusBadRequest)
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return
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}
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var release = model.Release{
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ID: data.ID,
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Visible: false,
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Title: title,
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Description: description,
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ReleaseType: releaseType,
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ReleaseDate: releaseDate,
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Artwork: artwork,
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Buyname: buyname,
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Buylink: buylink,
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Links: []*model.Link{},
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Credits: []*model.Credit{},
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Tracks: []*model.Track{},
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}
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err = controller.CreateReleaseDB(global.DB, &release)
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if err != nil {
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fmt.Printf("Failed to create release %s: %s\n", release.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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global.Releases = append([]*model.Release{&release}, global.Releases...)
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w.Header().Add("Content-Type", "application/json")
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w.WriteHeader(http.StatusCreated)
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err = json.NewEncoder(w).Encode(release)
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if err != nil {
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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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})
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}
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func UpdateRelease() 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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http.NotFound(w, r)
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return
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}
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segments := strings.Split(r.URL.Path[1:], "/")
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var releaseID = segments[0]
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var release = global.GetRelease(releaseID)
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if release == nil {
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http.Error(w, fmt.Sprintf("Release %s does not exist\n", releaseID), http.StatusBadRequest)
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return
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}
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if len(segments) == 1 {
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var data releaseBodyJSON
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err := json.NewDecoder(r.Body).Decode(&data)
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if err != nil {
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fmt.Printf("Failed to update release: %s\n", err)
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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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var update = *release
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if data.ID != "" { update.ID = data.ID }
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if data.Visible != nil { update.Visible = *data.Visible }
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if data.Title != nil { update.Title = *data.Title }
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if data.Description != nil { update.Description = *data.Description }
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if data.ReleaseType != nil { update.ReleaseType = *data.ReleaseType }
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if data.ReleaseDate != nil {
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newDate, err := time.Parse("2006-01-02T15:04", *data.ReleaseDate)
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if err != nil {
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http.Error(w, "Invalid release date", http.StatusBadRequest)
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return
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}
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update.ReleaseDate = newDate
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}
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if data.Artwork != nil {
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if strings.Contains(*data.Artwork, ";base64,") {
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split := strings.Split(*data.Artwork, ";base64,")
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header := split[0]
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imageData, err := base64.StdEncoding.DecodeString(split[1])
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ext, _ := strings.CutPrefix(header, "data:image/")
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switch ext {
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case "png":
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case "jpg":
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case "jpeg":
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default:
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http.Error(w, "Invalid image type. Allowed: .png, .jpg, .jpeg", http.StatusBadRequest)
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return
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}
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artworkDirectory := filepath.Join("uploads", "musicart")
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// ensure directory exists
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os.MkdirAll(artworkDirectory, os.ModePerm)
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imagePath := filepath.Join(artworkDirectory, fmt.Sprintf("%s.%s", update.ID, ext))
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file, err := os.Create(imagePath)
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if err != nil {
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fmt.Printf("FATAL: Failed to create file %s: %s\n", imagePath, 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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defer file.Close()
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buffer := bufio.NewWriter(file)
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_, err = buffer.Write(imageData)
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if err != nil {
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fmt.Printf("FATAL: Failed to write to file %s: %s\n", imagePath, 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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if err := buffer.Flush(); err != nil {
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fmt.Printf("FATAL: Failed to flush data to file %s: %s\n", imagePath, 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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// clean up files with this ID and different extensions
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err = filepath.Walk(artworkDirectory, func(path string, info fs.FileInfo, err error) error {
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if path == imagePath { return nil }
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withoutExt := strings.TrimSuffix(path, filepath.Ext(path))
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if withoutExt != filepath.Join(artworkDirectory, update.ID) { return nil }
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return os.Remove(path)
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})
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if err != nil {
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fmt.Printf("WARN: Error while cleaning up artwork files: %s\n", err)
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}
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update.Artwork = fmt.Sprintf("/uploads/musicart/%s.%s", update.ID, ext)
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} else {
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update.Artwork = *data.Artwork
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}
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}
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if data.Buyname != nil { update.Buyname = *data.Buyname }
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if data.Buylink != nil { update.Buylink = *data.Buylink }
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err = controller.UpdateReleaseDB(global.DB, &update)
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if err != nil {
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fmt.Printf("Failed to update release %s: %s\n", release.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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release.ID = update.ID
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release.Visible = update.Visible
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release.Title = update.Title
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release.Description = update.Description
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release.ReleaseType = update.ReleaseType
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release.ReleaseDate = update.ReleaseDate
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release.Artwork = update.Artwork
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release.Buyname = update.Buyname
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release.Buylink = update.Buylink
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w.Header().Add("Content-Type", "application/json")
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err = json.NewEncoder(w).Encode(release)
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if err != nil {
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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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return
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}
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if len(segments) == 2 {
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switch segments[1] {
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case "tracks":
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UpdateReleaseTracks(release).ServeHTTP(w, r)
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case "credits":
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UpdateReleaseCredits(release).ServeHTTP(w, r)
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case "links":
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UpdateReleaseLinks(release).ServeHTTP(w, r)
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}
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return
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}
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http.NotFound(w, r)
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})
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}
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func UpdateReleaseTracks(release *model.Release) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path == "/" || r.Method != http.MethodPut {
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http.NotFound(w, r)
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return
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}
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var trackIDs = []string{}
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err := json.NewDecoder(r.Body).Decode(&trackIDs)
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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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var old_tracks = (*release).Tracks
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var new_tracks = []*model.Track{}
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for _, trackID := range trackIDs {
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var track = global.GetTrack(trackID)
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if track == nil {
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http.Error(w, fmt.Sprintf("Track %s does not exist\n", trackID), http.StatusBadRequest)
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return
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}
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new_tracks = append(new_tracks, track)
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track.Release = release
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}
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err = controller.UpdateReleaseTracksDB(global.DB, release, new_tracks)
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if err != nil {
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fmt.Printf("Failed to update tracks for %s: %s\n", release.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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release.Tracks = new_tracks
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// remove release from orphaned tracks
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for _, old_track := range old_tracks {
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var exists = false
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for _, track := range new_tracks {
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if track.ID == old_track.ID {
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exists = true
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break
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}
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}
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if !exists {
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old_track.Release = nil
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}
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}
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w.Header().Add("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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err = json.NewEncoder(w).Encode(release)
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if err != nil {
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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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})
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}
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func UpdateReleaseCredits(release *model.Release) 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 {
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http.NotFound(w, r)
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return
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}
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type creditJSON struct {
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Artist string
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Role string
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Primary bool
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}
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var list []creditJSON
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err := json.NewDecoder(r.Body).Decode(&list)
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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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var credits = []*model.Credit{}
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for i, data := range list {
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if data.Artist == "" {
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http.Error(w, fmt.Sprintf("Artist ID cannot be blank (%d)", i), http.StatusBadRequest)
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return
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}
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for _, credit := range credits {
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if data.Artist == credit.Artist.ID {
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http.Error(w, fmt.Sprintf("Artist %s credited more than once", data.Artist), http.StatusBadRequest)
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return
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}
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}
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if data.Role == "" {
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http.Error(w, fmt.Sprintf("Artist role cannot be blank (%d)", i), http.StatusBadRequest)
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return
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}
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var artist = global.GetArtist(data.Artist)
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if artist == nil {
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http.Error(w, fmt.Sprintf("Artist %s does not exist\n", data.Artist), http.StatusBadRequest)
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return
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}
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credits = append(credits, &model.Credit{
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Artist: artist,
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Role: data.Role,
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Primary: data.Primary,
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})
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}
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err = controller.UpdateReleaseCreditsDB(global.DB, release, credits)
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if err != nil {
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fmt.Printf("Failed to update links %s: %s\n", release.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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release.Credits = credits
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w.Header().Add("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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err = json.NewEncoder(w).Encode(release)
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if err != nil {
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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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})
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}
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func UpdateReleaseLinks(release *model.Release) 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 {
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http.NotFound(w, r)
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return
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}
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var links = []*model.Link{}
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err := json.NewDecoder(r.Body).Decode(&links)
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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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err = controller.UpdateReleaseLinksDB(global.DB, release, links)
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if err != nil {
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fmt.Printf("Failed to update links %s: %s\n", release.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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release.Links = links
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w.Header().Add("Content-Type", "application/json")
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w.WriteHeader(http.StatusOK)
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err = json.NewEncoder(w).Encode(release)
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if err != nil {
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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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})
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}
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func DeleteRelease() 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 {
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http.NotFound(w, r)
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return
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}
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var releaseID = r.URL.Path[1:]
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var release = global.GetRelease(releaseID)
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if release == nil {
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http.Error(w, fmt.Sprintf("Release %s does not exist\n", releaseID), http.StatusBadRequest)
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return
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}
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err := controller.DeleteReleaseDB(global.DB, release)
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if err != nil {
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fmt.Printf("Failed to delete release %s: %s\n", release.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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global.Releases = func () []*model.Release {
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var releases = []*model.Release{}
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for _, r := range global.Releases {
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if r.ID == release.ID { continue }
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releases = append(releases, r)
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}
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return releases
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}()
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(fmt.Sprintf("Release %s has been deleted\n", release.ID)))
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})
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}
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