Move printing config to example from tests

Signed-off-by: Marcel Müller <m.mueller@ifm.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/crates/core/tedge_api/examples/print_config.rs b/crates/core/tedge_api/examples/print_config.rs
new file mode 100644
index 00000000..b7796a65
--- /dev/null
+++ b/crates/core/tedge_api/examples/print_config.rs
@@ -0,0 +1,80 @@
+use std::collections::HashMap;
+
+use nu_ansi_term::Color;
+use pretty::Arena;
+use tedge_api::config::{AsConfig, Config, ConfigKind};
+struct Port(u64);
+
+impl AsConfig for Port {
+    fn as_config() -> Config {
+        Config::new(
+            String::from("Integer"),
+            ConfigKind::Integer,
+            Some("A TCP port number is an integer between 0 and 65535"),
+        )
+    }
+}
+
+struct VHost;
+
+impl AsConfig for VHost {
+    fn as_config() -> Config {
+        Config::new(
+            String::from("VHost"),
+            ConfigKind::Struct(HashMap::from([(String::from("name"), String::as_config())])),
+            Some("A virtual host definition"),
+        )
+    }
+}
+
+fn main() {
+    let arena = Arena::new();
+
+    let doc = Vec::<String>::as_config();
+    let rendered_doc = doc.as_terminal_doc(&arena);
+
+    let mut output = String::new();
+
+    rendered_doc.render_fmt(80, &mut output).unwrap();
+
+    println!(
+        "------- Output for {}",
+        std::any::type_name::<Vec<String>>()
+    );
+    println!("{}", output);
+
+    let arena = Arena::new();
+
+    let doc = Config::new(
+            String::from("ServerConfig"),
+            ConfigKind::Struct(HashMap::from([
+                (String::from("port"), Port::as_config()),
+                (String::from("interface"), String::as_config()),
+                (String::from("virtual_hosts"), Vec::<VHost>::as_config()),
+                (String::from("headers"), HashMap::<String, String>::as_config()),
+            ])),
+            Some("Specify how the server should be started\n\n## Note\n\nThis is a reallly really loooooooooooooooooong loooooooooooooooooooong new *line*."),
+        );
+    let rendered_doc = doc.as_terminal_doc(&arena);
+
+    let mut output = String::new();
+
+    rendered_doc.render_fmt(80, &mut output).unwrap();
+
+    println!(
+        "Configuration for {} plugin kinds",
+        Color::White.bold().paint(doc.name())
+    );
+    println!(
+        "{}",
+        Color::White.dimmed().bold().paint(format!(
+            "=================={}=============",
+            std::iter::repeat('=')
+                .take(doc.name().len())
+                .collect::<String>()
+        ))
+    );
+    println!("------- Output for ServerConfig");
+    println!("{}", output);
+    println!("-------");
+}