generate color server-side

color.py

@@ -0,0 +1,46 @@
+import json
+import sys
+import tempfile
+from pathlib import Path
+from subprocess import run
+
+import requests
+import sentry_sdk
+
+import config
+from models import *
+
+
+def to_rgb_string(r: float, g: float, b: float) -> str:
+    r, g, b = map(int, [r, g, b])
+    return "{0:02x}{1:02x}{2:02x}".format(r, g, b)
+
+
+colorjs = Path("./web/color.js")
+
+if config.sentryDSN:
+    client = sentry_sdk.init(dsn=config.sentryDSN)
+
+if len(sys.argv) > 1:
+    limit = int(sys.argv[1])
+else:
+    limit = 50
+
+query = Song.select().where((Song.show == 0) & (Song.image_large.is_null(False)) & (Song.background_color.is_null()))
+for song in query.limit(limit):
+    url = song.image_large
+
+    r = requests.get(url)
+    with tempfile.TemporaryDirectory() as tmpdirname:
+        tmpdir = Path(tmpdirname)
+        image = tmpdir / "image.jpg"
+        with open(image, 'wb') as fd:
+            for chunk in r.iter_content(chunk_size=128):
+                fd.write(chunk)
+        output = run(["node", colorjs, image], capture_output=True)
+        data = json.loads(output.stdout)
+        print(data)
+    song.background_color = to_rgb_string(*data["LightVibrant"]["rgb"]) if "LightVibrant" in data else None
+    song.alternative_color = to_rgb_string(*data["DarkVibrant"]["rgb"]) if "DarkVibrant" in data else None
+    song.text_color = to_rgb_string(*data["DarkMuted"]["rgb"]) if "DarkMuted" in data else None
+    song.save()

models.py

@@ -21,6 +21,9 @@ class Song(BaseModel):
     spotify_url = CharField(null=True)
     image_small = CharField(null=True)
     image_large = CharField(null=True)
+    background_color = CharField(null=True, max_length=6)
+    alternative_color = CharField(null=True, max_length=6)
+    text_color = CharField(null=True, max_length=6)
 
     class Meta:
         indexes = ((("artist", "title"), True),)

web/DetailView.vue

@@ -1,5 +1,5 @@
 <template>
-    <div class="detailView customRow" :style="{backgroundColor:palette.background,color:palette.text}">
+    <div class="detailView customRow" :style="{backgroundColor:'#'+song.song.background_color,color:'#'+song.song.text_color}">
         <div>
             <img v-if="song.song.image_large" :src="song.song.image_large">
             <div v-else class="imgPlaceholder">
@@ -7,7 +7,7 @@
             </div>
             <audio v-if="song.song.preview_url" controls preload="none" :src="song.song.preview_url"></audio>
             <a v-if="song.song.spotify_url" :href="song.song.spotify_url" class="spotifyLink" target="_blank"
-               rel="noopener" :style="{color: palette.alternative?palette.alternative:color.backgroundColor}">
+               rel="noopener" :style="{color: '#'+song.song.alternative_color}">
                 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 168 168">
                     <path d="m83.996 0.277c-46.249 0-83.743 37.493-83.743 83.742 0 46.251 37.494 83.741 83.743 83.741 46.254 0 83.744-37.49 83.744-83.741 0-46.246-37.49-83.738-83.745-83.738l0.001-0.004zm38.404 120.78c-1.5 2.46-4.72 3.24-7.18 1.73-19.662-12.01-44.414-14.73-73.564-8.07-2.809 0.64-5.609-1.12-6.249-3.93-0.643-2.81 1.11-5.61 3.926-6.25 31.9-7.291 59.263-4.15 81.337 9.34 2.46 1.51 3.24 4.72 1.73 7.18zm10.25-22.805c-1.89 3.075-5.91 4.045-8.98 2.155-22.51-13.839-56.823-17.846-83.448-9.764-3.453 1.043-7.1-0.903-8.148-4.35-1.04-3.453 0.907-7.093 4.354-8.143 30.413-9.228 68.222-4.758 94.072 11.127 3.07 1.89 4.04 5.91 2.15 8.976v-0.001zm0.88-23.744c-26.99-16.031-71.52-17.505-97.289-9.684-4.138 1.255-8.514-1.081-9.768-5.219-1.254-4.14 1.08-8.513 5.221-9.771 29.581-8.98 78.756-7.245 109.83 11.202 3.73 2.209 4.95 7.016 2.74 10.733-2.2 3.722-7.02 4.949-10.73 2.739z"></path>
                 </svg>
@@ -32,7 +32,6 @@
     import axios from "axios";
     import moment from "moment";
     import "moment/locale/de-at";
-    import * as Vibrant from 'node-vibrant';
 
     if (process.env.NODE_ENV === "production") {
         axios.defaults.headers.common['X-Requested-With'] = "XMLHttpRequest";
@@ -45,7 +44,6 @@
         data() {
             return {
                 plays: [],
-                palette: {text: "", background: "", alternative: ""}
             };
         },
         props: ['songs', 'color', 'momentDate', 'dateType'],
@@ -56,25 +54,6 @@
         methods: {
             getPlays: function() {
                 let vm = this;
-                if (this.song.song.image_small) {
-                    let v = Vibrant.from(this.song.song.image_small);
-                    v.getPalette((err, palette) => {
-                        if (err) {
-                            console.warn(err);
-                        }
-                        console.log('%c LightVibrant', 'background: ' + palette.LightVibrant.getHex());
-                        console.log('%c Vibrant', 'background: ' + palette.Vibrant.getHex());
-                        console.log('%c DarkVibrant', 'background: ' + palette.DarkVibrant.getHex());
-                        console.log('%c LightMuted', 'background: ' + palette.LightMuted.getHex());
-                        console.log('%c Muted', 'background: ' + palette.Muted.getHex());
-                        console.log('%c DarkMuted', 'background: ' + palette.DarkMuted.getHex());
-                        vm.palette = {
-                            background: palette.LightVibrant? palette.LightVibrant.getHex() : "",
-                            alternative: palette.DarkVibrant ? palette.DarkVibrant.getHex() : "",
-                            text: palette.DarkMuted ? palette.DarkMuted.getHex() : ""
-                        };
-                    });
-                }
                 this.plays = [];
                 axios.get(baseURL + this.$route.params.channel + "/plays/" + this.$route.params.songId, {
                     params: {

web/color.js

@@ -0,0 +1,3 @@
+let Vibrant = require('node-vibrant');
+
+Vibrant.from(process.argv[2]).getPalette((err, palette) => console.log(JSON.stringify(palette)));