From a63b2174be4bb897d717034ed42e2b7676645deb Mon Sep 17 00:00:00 2001
From: Fuwn <contact@fuwn.me>
Date: Thu, 30 Mar 2023 20:11:20 -0700
Subject: feat(translation): add translation header

---
 src/modules/router/translate/module.rs | 87 ++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 src/modules/router/translate/module.rs

(limited to 'src/modules/router/translate/module.rs')

diff --git a/src/modules/router/translate/module.rs b/src/modules/router/translate/module.rs
new file mode 100644
index 0000000..8c3b162
--- /dev/null
+++ b/src/modules/router/translate/module.rs
@@ -0,0 +1,87 @@
+// This file is part of Locus <https://github.com/gemrest/locus>.
+// Copyright (C) 2022-2022 Fuwn <contact@fuwn.me>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 3.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// Copyright (C) 2022-2022 Fuwn <contact@fuwn.me>
+// SPDX-License-Identifier: GPL-3.0-only
+
+use super::deepl::translate;
+use crate::modules::router::translate::deepl::language_code_to_language_name;
+
+pub fn module(
+  cc: &windmark::returnable::CallbackContext<'_>,
+  content: &mut String,
+) {
+  if let Some(language) =
+    windmark::utilities::queries_from_url(cc.url).get("translate")
+  {
+    let lines = content
+      .lines()
+      .map(ToString::to_string)
+      .collect::<Vec<String>>();
+    let mut preformatted = false;
+    let mut saved_lines = std::collections::HashMap::new();
+    let mut fully_translated = Vec::new();
+
+    for (i, line) in &mut lines.iter().enumerate() {
+      if line == "```" {
+        preformatted = !preformatted;
+      }
+
+      if line.starts_with("=>") {
+        if let Some(germ::ast::Node::Link {
+          to,
+          text,
+        }) = germ::ast::Ast::from_string(line).inner().get(0)
+        {
+          saved_lines.insert(
+            i,
+            format!(
+              "=> {to}?translate={language}{}",
+              text.clone().map_or_else(
+                || "".to_string(),
+                |text| { format!(" {}", translate(&text, language).text()) }
+              )
+            ),
+          );
+        }
+      } else if preformatted {
+        saved_lines.insert(i, line.to_string());
+      }
+    }
+
+    let translated = translate(content, language);
+
+    for (i, line) in translated.text().lines().enumerate() {
+      if saved_lines.contains_key(&i) {
+        fully_translated.push(saved_lines.get(&i).unwrap().to_string());
+      } else {
+        fully_translated.push(line.to_string());
+      }
+    }
+
+    *content = format!(
+      "This content has been translated from {} to {}.\n\n=> {} View \
+       Original\n\n{}",
+      language_code_to_language_name(
+        &translated.detected_source_language().to_lowercase()
+      ),
+      language_code_to_language_name(&language.to_string().to_lowercase()),
+      cc.url
+        .to_string()
+        .replace(&format!("translate={language}"), ""),
+      fully_translated.join("\n")
+    );
+  }
+}
-- 
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