From ea3426edd960c64cb82898a226e6e9c317daef57 Mon Sep 17 00:00:00 2001
From: Laptop <laptop@disroot.org>
Date: Sat, 23 Nov 2024 00:22:04 +0200
Subject: [PATCH] /discover - featured playlists, some more fixes

---
 assets/global.css        |  2 +-
 assets/index.html        |  1 +
 lib/sc/featured.go       | 59 ++++++++++++++++++++++++++++++++++++++++
 lib/sc/track.go          | 22 ---------------
 main.go                  | 16 +++++++++++
 templates/featured.templ | 28 +++++++++++++++++--
 templates/playlist.templ |  2 +-
 7 files changed, 103 insertions(+), 27 deletions(-)
 create mode 100644 lib/sc/featured.go

diff --git a/assets/global.css b/assets/global.css
index 742d6a2..4c7d2c9 100644
--- a/assets/global.css
+++ b/assets/global.css
@@ -137,7 +137,7 @@ footer {
   margin-top: 5rem;
   gap: 1rem;
   display: grid;
-  grid-template: auto / auto auto;
+  grid-template: auto / auto auto auto;
   justify-content: center;
 }
 
diff --git a/assets/index.html b/assets/index.html
index c052d43..1308201 100644
--- a/assets/index.html
+++ b/assets/index.html
@@ -25,6 +25,7 @@
     </form>
     <footer>
         <a class="btn" href="/_/featured">Featured Tracks</a>
+        <a class="btn" href="/discover">Discover Playlists</a>
         <a class="btn" href="/_/preferences">Preferences</a>
 
         <a class="btn" href="https://github.com/maid-zone/soundcloak">Source code</a>
diff --git a/lib/sc/featured.go b/lib/sc/featured.go
new file mode 100644
index 0000000..ec77af6
--- /dev/null
+++ b/lib/sc/featured.go
@@ -0,0 +1,59 @@
+package sc
+
+import "github.com/maid-zone/soundcloak/lib/cfg"
+
+// Functions/structions related to featured/suggested content
+
+type Selection struct {
+	Title string               `json:"title"`
+	Kind  string               `json:"kind"`  // should always be "selection"!
+	Items Paginated[*Playlist] `json:"items"` // ?? why
+}
+
+func GetFeaturedTracks(prefs cfg.Preferences, args string) (*Paginated[*Track], error) {
+	cid, err := GetClientID()
+	if err != nil {
+		return nil, err
+	}
+
+	p := Paginated[*Track]{Next: "https://" + api + "/featured_tracks/top/all-music" + args + "&client_id=" + cid}
+	// DO NOT UNFOLD
+	// dangerous
+	// seems to go in an infinite loop
+	err = p.Proceed(false)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, t := range p.Collection {
+		t.Fix(prefs, false)
+	}
+
+	return &p, nil
+}
+
+func GetSelections(prefs cfg.Preferences) (*Paginated[*Selection], error) {
+	cid, err := GetClientID()
+	if err != nil {
+		return nil, err
+	}
+
+	// There is no pagination
+	p := Paginated[*Selection]{Next: "https://" + api + "/mixed-selections?limit=20&client_id=" + cid}
+	err = p.Proceed(false)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, t := range p.Collection {
+		t.Fix(prefs)
+	}
+
+	return &p, nil
+}
+
+func (s *Selection) Fix(prefs cfg.Preferences) {
+	for _, p := range s.Items.Collection {
+		p.Fix(prefs, false)
+	}
+}
diff --git a/lib/sc/track.go b/lib/sc/track.go
index cc2c904..13424b3 100644
--- a/lib/sc/track.go
+++ b/lib/sc/track.go
@@ -397,25 +397,3 @@ func GetTrackByID(prefs cfg.Preferences, id string) (Track, error) {
 
 	return t, nil
 }
-
-func GetFeaturedTracks(prefs cfg.Preferences, args string) (*Paginated[*Track], error) {
-	cid, err := GetClientID()
-	if err != nil {
-		return nil, err
-	}
-
-	p := Paginated[*Track]{Next: "https://" + api + "/featured_tracks/top/all-music" + args + "&client_id=" + cid}
-	// DO NOT UNFOLD
-	// dangerous
-	// seems to go in an infinite loop
-	err = p.Proceed(false)
-	if err != nil {
-		return nil, err
-	}
-
-	for _, t := range p.Collection {
-		t.Fix(prefs, false)
-	}
-
-	return &p, nil
-}
diff --git a/main.go b/main.go
index 767542c..7567ca2 100644
--- a/main.go
+++ b/main.go
@@ -176,6 +176,22 @@ func main() {
 		return templates.Base("Featured Tracks", templates.FeaturedTracks(tracks), nil).Render(context.Background(), c)
 	})
 
+	app.Get("/discover", func(c *fiber.Ctx) error {
+		prefs, err := preferences.Get(c)
+		if err != nil {
+			return err
+		}
+
+		selections, err := sc.GetSelections(prefs) // There is no pagination
+		if err != nil {
+			log.Printf("error getting selections: %s\n", err)
+			return err
+		}
+
+		c.Set("Content-Type", "text/html")
+		return templates.Base("Discover", templates.Discover(selections), nil).Render(context.Background(), c)
+	})
+
 	if cfg.ProxyImages {
 		proxyimages.Load(app)
 	}
diff --git a/templates/featured.templ b/templates/featured.templ
index 67098a9..4a223d0 100644
--- a/templates/featured.templ
+++ b/templates/featured.templ
@@ -1,16 +1,14 @@
 package templates
 
-// I made a separate templates file for this, since I'm planning on adding another "featured" feature later (soundcloud.com/discover)
-
 import (
 	"github.com/maid-zone/soundcloak/lib/sc"
 	"net/url"
 	"strings"
+	"strconv"
 )
 
 templ FeaturedTracks(p *sc.Paginated[*sc.Track]) {
 	<h1>Featured Tracks</h1>
-	<br/>
 	if len(p.Collection) == 0 {
 		<p>no more tracks</p>
 	} else {
@@ -22,3 +20,27 @@ templ FeaturedTracks(p *sc.Paginated[*sc.Track]) {
 		}
 	}
 }
+
+templ Discover(p *sc.Paginated[*sc.Selection]) {
+	<h1>Discover Playlists</h1> // also tracks apparently? haven't seen any
+	<span>Got { strconv.FormatInt(int64(len(p.Collection)), 10) } playlists</span>
+	if len(p.Collection) != 0 {
+		for _, selection := range p.Collection {
+			// skip so we don't just include the title and zero playlists with it
+			if len(selection.Items.Collection) == 0 {
+				{{ continue }} // raw go code my beloved
+			}
+
+			<h2>{selection.Title}</h2>
+			for _, pl := range selection.Items.Collection {
+				// We don't need the username
+				@PlaylistItem(pl, false)
+			}
+		}
+
+		// I don't think they have pagination for this endpoint, just leaving this here, in case they actually do
+		// if p.Next != "" {
+		// 	<a class="btn" href={ templ.URL("/discover?pagination=" + url.QueryEscape(strings.Split(p.Next, "/discover")[1])) } rel="noreferrer">more playlists</a>
+		// }
+	}
+}
diff --git a/templates/playlist.templ b/templates/playlist.templ
index ae96ddb..24976b9 100644
--- a/templates/playlist.templ
+++ b/templates/playlist.templ
@@ -38,7 +38,7 @@ templ Playlist(p sc.Playlist) {
 	}
 	<h1>{ p.Title }</h1>
 	@UserItem(&p.Author)
-	<div class="btns">
+	<div style="display: flex;">
 		<a class="btn" href={ templ.URL("https://soundcloud.com/" + p.Author.Permalink + "/sets/" + p.Permalink) }>view on soundcloud</a>
 	</div>
 	<br/>