Add search engine settings

crates/ely_domain/src/search.rs

@@ -0,0 +1,52 @@
+use url::Url;
+
+use crate::{DomainError, UrlText};
+
+#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
+pub enum SearchEngine {
+    #[default]
+    DuckDuckGo,
+    Google,
+    Brave,
+}
+
+impl SearchEngine {
+    pub const ALL: &[Self] = &[Self::DuckDuckGo, Self::Google, Self::Brave];
+
+    #[must_use]
+    pub fn name(self) -> &'static str {
+        match self {
+            Self::DuckDuckGo => "DuckDuckGo",
+            Self::Google => "Google",
+            Self::Brave => "Brave Search",
+        }
+    }
+
+    #[must_use]
+    pub fn host(self) -> &'static str {
+        match self {
+            Self::DuckDuckGo => "duckduckgo.com",
+            Self::Google => "www.google.com",
+            Self::Brave => "search.brave.com",
+        }
+    }
+
+    pub fn search_url(self, query: &str) -> Result<UrlText, DomainError> {
+        let mut url = Url::parse(self.base_url())
+            .map_err(|_| DomainError::InvalidUrl { value: self.base_url().to_string() })?;
+        url.query_pairs_mut().append_pair(self.query_parameter(), query);
+        UrlText::parse(url.to_string())
+    }
+
+    fn base_url(self) -> &'static str {
+        match self {
+            Self::DuckDuckGo => "https://duckduckgo.com/",
+            Self::Google => "https://www.google.com/search",
+            Self::Brave => "https://search.brave.com/search",
+        }
+    }
+
+    fn query_parameter(self) -> &'static str {
+        "q"
+    }
+}