HOLY REFACTOR GOOD GRIEF (also finally started some CRUD work)

Signed-off-by: ari melody <ari@arimelody.me>

music/view/music.go

@@ -0,0 +1,94 @@
+package view
+
+import (
+	"net/http"
+
+	"arimelody.me/arimelody.me/admin"
+	"arimelody.me/arimelody.me/global"
+	"arimelody.me/arimelody.me/music/model"
+)
+
+// HTTP HANDLER METHODS
+
+func Handler() http.Handler {
+    mux := http.NewServeMux()
+
+    mux.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        if r.URL.Path == "/" {
+            ServeCatalog().ServeHTTP(w, r)
+            return
+        }
+        ServeGateway().ServeHTTP(w, r)
+    }))
+
+    return mux
+}
+
+func ServeCatalog() http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        releases := []model.Release{}
+        authorised := admin.GetSession(r) != nil
+        for _, release := range global.Releases {
+            if !release.IsReleased() && !authorised {
+                continue
+            }
+            releases = append(releases, release)
+        }
+
+        global.ServeTemplate("music.html", releases).ServeHTTP(w, r)
+    })
+}
+
+/*
+func ServeArtwork() http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        if r.URL.Path == "/" {
+            http.NotFound(w, r)
+            return
+        }
+
+        if !strings.HasSuffix(r.URL.Path, ".png") {
+            http.NotFound(w, r)
+            return
+        }
+
+        releaseID := r.URL.Path[1:len(r.URL.Path) - 4]
+        var release = GetRelease(releaseID)
+        if release == nil {
+            http.NotFound(w, r)
+            return
+        }
+
+        // only allow authorised users to view unreleased releases
+        authorised := r.Context().Value("role") != nil && r.Context().Value("role") == "admin"
+        if !release.IsReleased() && !authorised {
+            admin.MustAuthorise(ServeArtwork()).ServeHTTP(w, r)
+            return
+        }
+
+        fp := filepath.Join("data", "music-artwork", releaseID + ".png")
+        info, err := os.Stat(fp)
+        if err != nil {
+            if os.IsNotExist(err) {
+                http.NotFound(w, r)
+                return
+            }
+        }
+        length := info.Size()
+
+        file, err := os.Open(fp)
+        if err != nil {
+            http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+            return
+        }
+        defer file.Close()
+
+        var bytes = make([]byte, length)
+        file.Read(bytes)
+
+        w.Header().Add("Content-Type", "image/png")
+        w.WriteHeader(http.StatusOK)
+        w.Write(bytes)
+    })
+}
+*/

music/view/release.go

@@ -0,0 +1,74 @@
+package view
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"arimelody.me/arimelody.me/admin"
+	"arimelody.me/arimelody.me/global"
+)
+
+// HTTP HANDLERS
+
+func ServeRelease() http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path == "/" {
+			http.NotFound(w, r)
+			return
+		}
+
+		releaseID := r.URL.Path[1:]
+		var release = global.GetRelease(releaseID)
+		if release == nil {
+			http.NotFound(w, r)
+			return
+		}
+
+		// only allow authorised users to view unreleased releases
+		authorised := admin.GetSession(r) != nil
+		if !release.IsReleased() && !authorised {
+			admin.MustAuthorise(ServeRelease()).ServeHTTP(w, r)
+			return
+		}
+
+		w.Header().Add("Content-Type", "application/json")
+		err := json.NewEncoder(w).Encode(release)
+		if err != nil {
+			http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+			return
+		}
+	})
+}
+
+func ServeGateway() http.Handler {
+    return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+        if r.URL.Path == "/" {
+            http.Redirect(w, r, "/music", http.StatusPermanentRedirect)
+            return
+        }
+
+        id := r.URL.Path[1:]
+        release := global.GetRelease(id)
+        if release == nil {
+            http.NotFound(w, r)
+            return
+        }
+
+        // only allow authorised users to view unreleased releases
+        authorised := admin.GetSession(r) != nil
+        if !release.IsReleased() && !authorised {
+            admin.MustAuthorise(ServeGateway()).ServeHTTP(w, r)
+            return
+        }
+
+        lrw := global.LoggingResponseWriter{w, http.StatusOK}
+
+        global.ServeTemplate("music-gateway.html", release).ServeHTTP(&lrw, r)
+
+        if lrw.Code != http.StatusOK {
+            fmt.Printf("Error rendering music gateway for %s\n", id)
+            return
+        }
+    })
+}