allow to mark episodes as completed

main.go

@@ -57,6 +57,7 @@ type Episode struct {
 	Url       string    `json:"url" db:"url"`
 	PodcastId int64     `json:"podcastId" db:"podcast_id"`
 	Number    int       `json:"number" db:"number"`
+	Listened  bool      `json:"listened" db:"listened"`
 	CreatedAt time.Time `json:"createdAt" db:"created_at"`
 }
 
@@ -308,6 +309,8 @@ func main() {
 	);
 	`)
 
+	db.Exec(`ALTER TABLE episodes ADD COLUMN listened boolean default false;`)
+
 	go func(db *sqlx.DB) {
 		for {
 			podcasts, err := getPodcasts(db)
@@ -496,6 +499,46 @@ func main() {
 		}{true}, 200)
 	})
 
+	mux.HandleFunc("PATCH /api/episodes/{id}", func(w http.ResponseWriter, r *http.Request) {
+		var body struct {
+			Listened *bool `json:"listened"`
+		}
+		if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
+			http.Error(w, err.Error(), 400)
+			return
+		}
+
+		fields := map[string]any{}
+
+		if body.Listened != nil {
+			fields["listened"] = &body.Listened
+		}
+
+		if len(fields) == 0 {
+			sendJSON(w, struct {
+				Ok bool `json:"ok"`
+			}{true}, 200)
+			return
+		}
+
+		fields["id"] = r.PathValue("id")
+
+		f := []string{}
+		for field := range fields {
+			f = append(f, fmt.Sprintf("%s = :%s", field, field))
+		}
+		q := fmt.Sprintf("UPDATE episodes SET %s WHERE id = :id", strings.Join(f, ", "))
+		_, err := db.NamedExec(q, fields)
+		if err != nil {
+			http.Error(w, err.Error(), 400)
+			return
+		}
+
+		sendJSON(w, struct {
+			Ok bool `json:"ok"`
+		}{true}, 200)
+	})
+
 	fmt.Println("starting http server on http://localhost:5000")
 	if err := http.ListenAndServe(":5000", mux); err != nil {
 		log.Fatalf("failed to start http server: %v\n", err)

web/src/api/episodes.ts

@@ -0,0 +1,41 @@
+import { useMutation, useQuery } from "@tanstack/react-query";
+
+export type EpisodeDetail = {
+  id: number;
+  title: string;
+  pubDate: string;
+  guid: string;
+  url: string;
+  podcastId: number;
+  number: number;
+  listened: boolean;
+  createdAt: string;
+};
+
+export const usePodcastEpisodesQuery = (
+  id: number | string | null | undefined,
+) => {
+  return useQuery({
+    queryKey: ["podcasts", id, "episodes"],
+    enabled: typeof id !== "undefined" && id !== null,
+    queryFn: async () => {
+      const resp = await fetch(`/api/podcasts/${id}/episodes`);
+      return (await resp.json()) as EpisodeDetail[];
+    },
+  });
+};
+
+export const useUpdateEpisodeMutation = () => {
+  return useMutation({
+    mutationFn: async ({
+      id,
+      ...data
+    }: Partial<EpisodeDetail> & { id: number }) => {
+      const resp = await fetch(`/api/episodes/${id}`, {
+        method: "PATCH",
+        body: JSON.stringify(data),
+      });
+      return await resp.json();
+    },
+  });
+};

web/src/api/podcasts.ts

@@ -11,17 +11,6 @@ export type PodcastDetail = {
   createdAt: string;
 };
 
-export type EpisodeDetail = {
-  id: number;
-  title: string;
-  pubDate: string;
-  guid: string;
-  url: string;
-  podcastId: number;
-  number: number;
-  createdAt: string;
-};
-
 export const usePodcastsQuery = () => {
   return useQuery({
     queryKey: ["podcasts"],
@@ -43,19 +32,6 @@ export const usePodcastQuery = (id: number | string | null | undefined) => {
   });
 };
 
-export const usePodcastEpisodesQuery = (
-  id: number | string | null | undefined,
-) => {
-  return useQuery({
-    queryKey: ["podcasts", id, "episodes"],
-    enabled: typeof id !== "undefined" && id !== null,
-    queryFn: async () => {
-      const resp = await fetch(`/api/podcasts/${id}/episodes`);
-      return (await resp.json()) as EpisodeDetail[];
-    },
-  });
-};
-
 export type CreatePodcastData = {
   feed: string;
 };

web/src/pages/podcast.tsx

@@ -1,11 +1,17 @@
 import { useParams } from "react-router";
-import { usePodcastEpisodesQuery, usePodcastQuery } from "../api/podcasts";
+import { usePodcastQuery } from "../api/podcasts";
+import {
+  usePodcastEpisodesQuery,
+  useUpdateEpisodeMutation,
+} from "../api/episodes";
 import { Link } from "react-router";
 import { usePlayerContext } from "../player/context";
 import { PlayIcon } from "../icons/play";
 import { PauseIcon } from "../icons/pause";
+import { useQueryClient } from "@tanstack/react-query";
 
 export const PodcastPage = () => {
+  const queryClient = useQueryClient();
   const { id } = useParams<{ id: string }>();
 
   const { data: podcast } = usePodcastQuery(id);
@@ -13,6 +19,40 @@ export const PodcastPage = () => {
 
   const player = usePlayerContext();
 
+  const updateEpisodeMutation = useUpdateEpisodeMutation();
+
+  const handleMarkCompleted = (episodeId: number) => {
+    updateEpisodeMutation.mutate(
+      {
+        id: episodeId,
+        listened: true,
+      },
+      {
+        onSuccess() {
+          queryClient.invalidateQueries({
+            queryKey: ["podcasts", id, "episodes"],
+          });
+        },
+      },
+    );
+  };
+
+  const handleUnmarkCompleted = (episodeId: number) => {
+    updateEpisodeMutation.mutate(
+      {
+        id: episodeId,
+        listened: false,
+      },
+      {
+        onSuccess() {
+          queryClient.invalidateQueries({
+            queryKey: ["podcasts", id, "episodes"],
+          });
+        },
+      },
+    );
+  };
+
   return (
     <div>
       <Link to="/">
@@ -52,7 +92,31 @@ export const PodcastPage = () => {
               )}
               <span>{episode.title}</span>
             </div>
-            <span>{new Date(episode.createdAt).toLocaleString()}</span>
+            <div className="flex items-center gap-2">
+              {episode.listened ? (
+                <button
+                  className="text-green-700"
+                  disabled={
+                    updateEpisodeMutation.isPending &&
+                    updateEpisodeMutation.variables.id === episode.id
+                  }
+                  onClick={() => handleUnmarkCompleted(episode.id)}
+                >
+                  Unmark completed
+                </button>
+              ) : (
+                <button
+                  disabled={
+                    updateEpisodeMutation.isPending &&
+                    updateEpisodeMutation.variables.id === episode.id
+                  }
+                  onClick={() => handleMarkCompleted(episode.id)}
+                >
+                  Mark completed
+                </button>
+              )}
+              <span>{new Date(episode.createdAt).toLocaleString()}</span>
+            </div>
           </div>
         ))}
       </div>

web/src/player/context.ts

@@ -1,5 +1,5 @@
 import { createContext, useContext } from "react";
-import type { EpisodeDetail } from "../api/podcasts";
+import type { EpisodeDetail } from "../api/episodes";
 
 export type PlayerStatus = "stopped" | "playing" | "paused";
 

web/src/player/provider.tsx

@@ -4,7 +4,7 @@ import {
   type PlayerStatus,
   playerContext,
 } from "./context";
-import type { EpisodeDetail } from "../api/podcasts";
+import type { EpisodeDetail } from "../api/episodes";
 
 export const PlayerProvider = ({ children }: { children: ReactNode }) => {
   const [status, setStatus] = useState<PlayerStatus>("stopped");