3 files changed, 29 insertions, 3 deletions
diff --git a/templates/src/lib.rs b/templates/src/lib.rs
index 0f9f7c6..194a837 100644
--- a/templates/src/lib.rs
+++ b/templates/src/lib.rs
@@ -10,6 +10,7 @@ mod mf2;
 pub use mf2::{Entry, Feed, Food, VCard, POSTS_PER_PAGE};
 pub mod admin;
 pub mod assets;
+pub mod themes;
 
 #[cfg(test)]
 mod tests {
diff --git a/templates/src/templates.rs b/templates/src/templates.rs
index 5772b4d..785a4b8 100644
--- a/templates/src/templates.rs
+++ b/templates/src/templates.rs
@@ -1,16 +1,16 @@
 #![allow(clippy::needless_lifetimes)]
-use crate::{Feed, VCard};
+use crate::{themes::ThemeName, Feed, VCard};
 use http::StatusCode;
 use kittybox_util::micropub::Channel;
 
 markup::define! {
-    Template<'a>(title: &'a str, blog_name: &'a str, feeds: Vec<Channel>, user: Option<&'a kittybox_indieauth::ProfileUrl>, content: String) {
+    Template<'a>(title: &'a str, blog_name: &'a str, feeds: Vec<Channel>, theme: ThemeName, user: Option<&'a kittybox_indieauth::ProfileUrl>, content: String) {
         @markup::doctype()
         html {
             head {
                 title { @title }
                 link[rel="preconnect", href="https://fonts.gstatic.com"];
-                link[rel="stylesheet", href="/.kittybox/static/style.css"];
+                link[rel="stylesheet", href=theme.into_css_link()];
                 meta[name="viewport", content="initial-scale=1, width=device-width"];
 
                 link[rel="micropub", href="/.kittybox/micropub"];
diff --git a/templates/src/themes.rs b/templates/src/themes.rs
new file mode 100644
index 0000000..ebc0ed9
--- /dev/null
+++ b/templates/src/themes.rs
@@ -0,0 +1,25 @@
+#[derive(Debug, Default, serde::Serialize, serde::Deserialize, Clone, Copy, PartialEq, Eq)]
+#[serde(rename_all = "snake_case")]
+/// Choices of themes possible in Kittybox.
+pub enum ThemeName {
+    #[default]
+    /// Default theme shipped with Kittybox.
+    Kittybox,
+    /// "Serious business" theme, typeset like a business memo.
+    VivianWork,
+    /// Emulation of the old style websites used back in the day.
+    Retro,
+    /// Custom CSS specified by user.
+    Custom,
+}
+
+impl ThemeName {
+    pub(crate) fn into_css_link(self) -> &'static str {
+        match self {
+            ThemeName::Kittybox => "/.kittybox/static/style.css",
+            ThemeName::VivianWork => "/.kittybox/static/vivian_work.style.css",
+            ThemeName::Retro => "/.kittybox/static/retro.style.css",
+            ThemeName::Custom => "/.kittybox/custom_style.css",
+        }
+    }
+}