1 files changed, 83 insertions, 0 deletions
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..b6046af
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,83 @@
+use std::path::PathBuf;
+
+pub type Result<T, E = Error> = std::result::Result<T, E>;
+
+pub struct Error {
+    #[allow(dead_code)]
+    pub kind: ErrorKind,
+    pub error: String,
+}
+pub enum ErrorKind {
+    Malformed,
+    StackExchange,
+    Permissions,
+    OperatingSystem,
+    Panic,
+    EmptySites,
+    NoResults,
+}
+
+impl From<&str> for Error {
+    fn from(err: &str) -> Self {
+        Error {
+            kind: ErrorKind::Panic,
+            error: String::from(err),
+        }
+    }
+}
+
+// TODO add others
+impl Error {
+    pub fn malformed(path: &PathBuf) -> Self {
+        Error {
+            kind: ErrorKind::Malformed,
+            error: format!("File {} is malformed; try removing it.", path.display()),
+        }
+    }
+    pub fn se(err: String) -> Self {
+        Error {
+            kind: ErrorKind::StackExchange,
+            error: err,
+        }
+    }
+    pub fn create_dir(path: &PathBuf) -> Self {
+        Error {
+            kind: ErrorKind::Permissions,
+            error: format!(
+                "Couldn't create directory {}; please check the permissions
+                on the parent directory",
+                path.display()
+            ),
+        }
+    }
+    pub fn create_file(path: &PathBuf) -> Self {
+        Error {
+            kind: ErrorKind::Permissions,
+            error: format!(
+                "Couldn't create file {}; please check the directory permissions",
+                path.display()
+            ),
+        }
+    }
+    pub fn write_file(path: &PathBuf) -> Self {
+        Error {
+            kind: ErrorKind::Permissions,
+            error: format!(
+                "Couldn't write to file {}; please check its permissions",
+                path.display()
+            ),
+        }
+    }
+    pub fn os(err: &str) -> Self {
+        Error {
+            kind: ErrorKind::OperatingSystem,
+            error: String::from(err),
+        }
+    }
+    pub fn no_results() -> Self {
+        Error {
+            kind: ErrorKind::NoResults,
+            error: String::from("Sorry, no answers found for your question. Try another query."),
+        }
+    }
+}