1 files changed, 150 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..8be855e0
--- /dev/null
+++ b/crates/core/tedge_api/examples/print_config.rs
@@ -0,0 +1,150 @@
+#![allow(dead_code, unused)]
+use std::collections::HashMap;
+
+use nu_ansi_term::Color;
+use pretty::Arena;
+use tedge_api::{
+    config::{AsConfig, ConfigDescription, ConfigKind},
+    Config,
+};
+struct Port(u64);
+
+impl AsConfig for Port {
+    fn as_config() -> ConfigDescription {
+        ConfigDescription::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() -> ConfigDescription {
+        ConfigDescription::new(
+            String::from("VHost"),
+            ConfigKind::Struct(vec![("name", None, 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 = ConfigDescription::new(
+            String::from("ServerConfig"),
+            ConfigKind::Struct(vec![
+                ("port", None, Port::as_config()),
+                ("interface", None, String::as_config()),
+                ("virtual_hosts", None, Vec::<VHost>::as_config()),
+                ("headers", None, 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);
+    let arena = Arena::new();
+
+    #[derive(Config)]
+    #[config(tag = "type")]
+    /// An Nginx virtual host
+    ///
+    /// # Note
+    ///
+    /// This is an example and as such is nonsense
+    enum NginxVHost {
+        /// A simple host consisting of a string
+        Simple(String),
+        /// A more complex host that can also specify its port
+        Complex {
+            /// the name of the VHost
+            name: String,
+            port: Port,
+        },
+        UndocumentedComplex {
+            num: u16,
+            foo: f32,
+        },
+    }
+
+    #[derive(Config)]
+    #[config(untagged)]
+    enum DebugLevel {
+        /// Enables debug output
+        ///
+        /// And info of course
+        Debug,
+        /// Only pertinent information will be logged
+        Info,
+        /// A custom debug level
+        Custom(String),
+    }
+
+    #[derive(Config)]
+    struct NginxConfig {
+        vhosts: Vec<NginxVHost>,
+        debug_level: DebugLevel,
+        allow_priv_ports: bool,
+    }
+
+    let doc = NginxConfig::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 NginxConfig");
+    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);
+    println!("-------");
+}