Make avatar support both slash and message commands

src/main/java/wtf/beatrice/hidekobot/commands/base/Avatar.java

@@ -0,0 +1,62 @@
+package wtf.beatrice.hidekobot.commands.base;
+
+import net.dv8tion.jda.api.EmbedBuilder;
+import net.dv8tion.jda.api.entities.MessageEmbed;
+import net.dv8tion.jda.api.entities.User;
+import wtf.beatrice.hidekobot.Cache;
+
+public class Avatar
+{
+    public static int parseResolution(int resolution)
+    {
+        int[] acceptedSizes = Cache.getSupportedAvatarResolutions();
+
+        // method to find closest value to accepted values
+        int distance = Math.abs(acceptedSizes[0] - resolution);
+        int idx = 0;
+        for(int c = 1; c < acceptedSizes.length; c++){
+            int cdistance = Math.abs(acceptedSizes[c] - resolution);
+            if(cdistance < distance){
+                idx = c;
+                distance = cdistance;
+            }
+        }
+
+        return acceptedSizes[idx];
+    }
+
+    public static MessageEmbed buildEmbed(int resolution, User user)
+    {
+        int[] acceptedSizes = Cache.getSupportedAvatarResolutions();
+        EmbedBuilder embedBuilder = new EmbedBuilder();
+
+        embedBuilder.setColor(Cache.getBotColor());
+        embedBuilder.setTitle("Profile picture");
+
+        embedBuilder.addField("User", "<@" + user.getId() + ">", false);
+
+        embedBuilder.addField("Current resolution", resolution + " × " + resolution, false);
+
+        // string builder to create a string that links to all available resolutions
+        StringBuilder links = new StringBuilder();
+        for(int pos = 0; pos < acceptedSizes.length; pos++)
+        {
+            int currSize = acceptedSizes[pos];
+
+            String currLink = user.getEffectiveAvatar().getUrl(currSize);
+
+            links.append("[").append(currSize).append("px](").append(currLink).append(")");
+            if(pos + 1 != acceptedSizes.length) // don't add a separator on the last iteration
+            {
+                links.append(" | ");
+            }
+        }
+
+        embedBuilder.addField("Available resolutions", links.toString(), false);
+
+
+
+        embedBuilder.setImage(user.getEffectiveAvatar().getUrl(resolution));
+        return embedBuilder.build();
+    }
+}