1 files changed, 32 insertions, 0 deletions
diff --git a/src/resources/templates.rs b/src/resources/templates.rs
index 7578256..88c1fad 100644
--- a/src/resources/templates.rs
+++ b/src/resources/templates.rs
@@ -2,6 +2,7 @@ use std::collections::HashMap;
 
 use exun::{RawUnexpected, ResultErrorExt};
 use raise::yeet;
+use serde::Serialize;
 use tera::{Function, Tera, Value};
 use unic_langid::subtags::Language;
 
@@ -36,6 +37,37 @@ pub fn initialize() -> tera::Result<Tera> {
 	Ok(tera)
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub enum ErrorPage {
+	InvalidRequest,
+	ClientNotFound,
+	MissingRedirectUri,
+	InvalidRedirectUri,
+}
+
+pub fn error_page(
+	tera: &Tera,
+	language: Language,
+	mut translations: languages::Translations,
+	error: ErrorPage,
+) -> Result<String, RawUnexpected> {
+	translations.refresh()?;
+	let mut tera = extend_tera(tera, language, translations)?;
+	tera.full_reload()?;
+
+	let error = serde_variant::to_variant_name(&error)?;
+	let header = format!("errorHeader_{error}");
+	let message = format!("errorMessage_{error}");
+
+	let mut context = tera::Context::new();
+	context.insert("lang", language.as_str());
+	context.insert("errorHeader", &header);
+	context.insert("errormessage", &message);
+
+	tera.render("error.html", &context).unexpect()
+}
+
 pub fn login_page(
 	tera: &Tera,
 	params: &AuthorizationParameters,