From bac17f9bdb4a1bc8c41432f214469b3804a0f8b2 Mon Sep 17 00:00:00 2001
From: Rico Riedel <rico.riedel@protonmail.ch>
Date: Fri, 29 Jul 2022 14:50:04 +0200
Subject: [PATCH] Add term and error

---
 Cargo.lock   | 422 +++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml   |   8 +-
 src/error.rs |  29 ++++
 src/main.rs  |   9 +-
 src/term.rs  |  41 +++++
 5 files changed, 506 insertions(+), 3 deletions(-)
 create mode 100644 src/error.rs
 create mode 100644 src/term.rs

diff --git a/Cargo.lock b/Cargo.lock
index 549e55c..7232d0a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,428 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
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+dependencies = [
+ "bitflags",
+ "crossterm_winapi",
+ "libc",
+ "mio",
+ "parking_lot",
+ "signal-hook",
+ "signal-hook-mio",
+ "winapi",
+]
+
+[[package]]
+name = "crossterm_winapi"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2ae1b35a484aa10e07fe0638d02301c5ad24de82d310ccbd2f3693da5f09bf1c"
+dependencies = [
+ "winapi",
+]
+
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+ "itertools",
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+dependencies = [
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_msvc",
+]
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+version = "0.36.1"
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+checksum = "c811ca4a8c853ef420abd8592ba53ddbbac90410fab6903b3e79972a631f7680"
+
 [[package]]
 name = "wipe"
 version = "2.0.0"
+dependencies = [
+ "crossterm",
+ "mockall",
+]
diff --git a/Cargo.toml b/Cargo.toml
index d959742..6bd82a1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,4 +4,10 @@ version = "2.0.0"
 edition = "2021"
 license = "MIT"
 repository = "https://github.com/ricoriedel/wipe"
-authors = ["Rico Riedel"]
\ No newline at end of file
+authors = ["Rico Riedel"]
+
+[dependencies]
+crossterm = "0.24"
+
+[dev-dependencies]
+mockall = "0.11"
\ No newline at end of file
diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..fc4f4fd
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,29 @@
+use std::fmt::{Debug, Formatter};
+
+pub struct Error(String);
+
+impl Debug for Error {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        f.write_str(&self.0)
+    }
+}
+
+impl From<std::io::Error> for Error {
+    fn from(err: std::io::Error) -> Self {
+        Error(err.to_string())
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn from_std_io_error() {
+        let io_err = std::io::Error::new(std::io::ErrorKind::Other, "123");
+        let msg = io_err.to_string();
+        let err: Error = io_err.into();
+
+        assert_eq!(msg, format!("{:?}", err));
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..3fe4b88 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,8 @@
-fn main() {
-    println!("Hello, world!");
+mod error;
+mod term;
+
+use error::Error;
+
+fn main() -> Result<(), Error> {
+    Ok(())
 }
diff --git a/src/term.rs b/src/term.rs
new file mode 100644
index 0000000..eddc9a5
--- /dev/null
+++ b/src/term.rs
@@ -0,0 +1,41 @@
+use crate::Error;
+use crossterm::{Command, QueueableCommand};
+use std::io::Write;
+
+#[cfg_attr(test, mockall::automock)]
+pub trait Terminal {
+    fn queue<T: 'static + Command>(&mut self, cmd: T) -> Result<(), Error>;
+    fn flush(&mut self) -> Result<(), Error>;
+    fn size(&self) -> Result<(u16, u16), Error>;
+    fn position(&self) -> Result<(u16, u16), Error>;
+}
+
+pub struct TerminalImpl<T> {
+    out: T,
+}
+
+impl<T> TerminalImpl<T> {
+    pub fn new(out: T) -> Self {
+        Self { out }
+    }
+}
+
+impl<T: Write> Terminal for TerminalImpl<T> {
+    fn queue<TCmd: Command>(&mut self, cmd: TCmd) -> Result<(), Error> {
+        self.out.queue(cmd)?;
+        Ok(())
+    }
+
+    fn flush(&mut self) -> Result<(), Error> {
+        self.out.flush()?;
+        Ok(())
+    }
+
+    fn size(&self) -> Result<(u16, u16), Error> {
+        Ok(crossterm::terminal::size()?)
+    }
+
+    fn position(&self) -> Result<(u16, u16), Error> {
+        Ok(crossterm::cursor::position()?)
+    }
+}