feat: Improve output of tui. From p-r tui-score-info (#11)

WIP: formatted score debug print into a table with a name header and the score information below
Co-authored-by: Jean-Gabriel Gill-Couture <jg@nationtech.io>
Reviewed-on: #11
Reviewed-by: johnride <jg@nationtech.io>
Co-authored-by: Willem <wrolleman@nationtech.io>
Co-committed-by: Willem <wrolleman@nationtech.io>

harmony/src/domain/score.rs

@@ -1,10 +1,12 @@
+use std::collections::BTreeMap;
+
 use serde::Serialize;
 use serde_value::Value;
 
 use super::{interpret::Interpret, topology::Topology};
 
 pub trait Score<T: Topology>:
-    std::fmt::Debug + Send + Sync + CloneBoxScore<T> + SerializeScore<T>
+    std::fmt::Debug + ScoreToString<T> + Send + Sync + CloneBoxScore<T> + SerializeScore<T>
 {
     fn create_interpret(&self) -> Box<dyn Interpret<T>>;
     fn name(&self) -> String;
@@ -39,3 +41,191 @@ where
         Box::new(self.clone())
     }
 }
+
+pub trait ScoreToString<T: Topology> {
+    fn print_score_details(&self) -> String;
+    fn format_value_as_string(&self, val: &Value, indent: usize) -> String;
+    fn format_map(&self, map: &BTreeMap<Value, Value>, indent: usize) -> String;
+    fn wrap_or_truncate(&self, s: &str, width: usize) -> Vec<String>;
+}
+
+impl<S, T> ScoreToString<T> for S
+where
+    T: Topology,
+    S: Score<T> + 'static,
+{
+    fn print_score_details(&self) -> String {
+        let mut output = String::new();
+        output += "\n";
+        output += &self.format_value_as_string(&self.serialize(), 0);
+        output += "\n";
+        output
+    }
+    fn format_map(&self, map: &BTreeMap<Value, Value>, indent: usize) -> String {
+        let pad = " ".repeat(indent * 2);
+        let mut output = String::new();
+
+        output += &format!(
+            "{}+--------------------------+--------------------------------------------------+\n",
+            pad
+        );
+        output += &format!("{}| {:<24} | {:<48} |\n", pad, "score_name", self.name());
+        output += &format!(
+            "{}+--------------------------+--------------------------------------------------+\n",
+            pad
+        );
+
+        for (k, v) in map {
+            let key_str = match k {
+                Value::String(s) => s.clone(),
+                other => format!("{:?}", other),
+            };
+
+            let formatted_val = self.format_value_as_string(v, indent + 1);
+            let mut lines = formatted_val.lines().map(|line| line.trim_start());
+
+            let wrapped_lines: Vec<_> = lines
+                .flat_map(|line| self.wrap_or_truncate(line.trim_start(), 48))
+                .collect();
+
+            if let Some(first) = wrapped_lines.first() {
+                output += &format!("{}| {:<24} | {:<48} |\n", pad, key_str, first);
+                for line in &wrapped_lines[1..] {
+                    output += &format!("{}| {:<24} | {:<48} |\n", pad, "", line);
+                }
+            }
+
+            //            let first_line = lines.next().unwrap_or("");
+            //            output += &format!("{}| {:<24} | {:<48} |\n", pad, key_str, first_line);
+            //
+            //            for line in lines {
+            //                output += &format!("{}| {:<24} | {:<48} |\n", pad, "", line);
+            //            }
+        }
+
+        output += &format!(
+            "{}+--------------------------+--------------------------------------------------+\n\n",
+            pad
+        );
+
+        output
+    }
+
+    fn wrap_or_truncate(&self, s: &str, width: usize) -> Vec<String> {
+        let mut lines = Vec::new();
+        let mut current = s;
+
+        while !current.is_empty() {
+            if current.len() <= width {
+                lines.push(current.to_string());
+                break;
+            }
+
+            // Try to wrap at whitespace if possible
+            let mut split_index = current[..width].rfind(' ').unwrap_or(width);
+            if split_index == 0 {
+                split_index = width;
+            }
+
+            lines.push(current[..split_index].trim_end().to_string());
+            current = current[split_index..].trim_start();
+        }
+
+        lines
+    }
+
+    fn format_value_as_string(&self, val: &Value, indent: usize) -> String {
+        let pad = " ".repeat(indent * 2);
+        let mut output = String::new();
+
+        match val {
+            Value::Bool(b) => output += &format!("{}{}\n", pad, b),
+            Value::U8(u) => output += &format!("{}{}\n", pad, u),
+            Value::U16(u) => output += &format!("{}{}\n", pad, u),
+            Value::U32(u) => output += &format!("{}{}\n", pad, u),
+            Value::U64(u) => output += &format!("{}{}\n", pad, u),
+            Value::I8(i) => output += &format!("{}{}\n", pad, i),
+            Value::I16(i) => output += &format!("{}{}\n", pad, i),
+            Value::I32(i) => output += &format!("{}{}\n", pad, i),
+            Value::I64(i) => output += &format!("{}{}\n", pad, i),
+            Value::F32(f) => output += &format!("{}{}\n", pad, f),
+            Value::F64(f) => output += &format!("{}{}\n", pad, f),
+            Value::Char(c) => output += &format!("{}{}\n", pad, c),
+            Value::String(s) => output += &format!("{}{:<48}\n", pad, s),
+            Value::Unit => output += &format!("{}<unit>\n", pad),
+            Value::Bytes(bytes) => output += &format!("{}{:?}\n", pad, bytes),
+
+            Value::Option(opt) => match opt {
+                Some(inner) => {
+                    output += &format!("{}Option:\n", pad);
+                    output += &self.format_value_as_string(inner, indent + 1);
+                }
+                None => output += &format!("{}None\n", pad),
+            },
+
+            Value::Newtype(inner) => {
+                output += &format!("{}Newtype:\n", pad);
+                output += &self.format_value_as_string(inner, indent + 1);
+            }
+
+            Value::Seq(seq) => {
+                if seq.is_empty() {
+                    output += &format!("{}[]\n", pad);
+                } else {
+                    output += &format!("{}[\n", pad);
+                    for item in seq {
+                        output += &self.format_value_as_string(item, indent + 1);
+                    }
+                    output += &format!("{}]\n", pad);
+                }
+            }
+
+            Value::Map(map) => {
+                if map.is_empty() {
+                    output += &format!("{}<empty map>\n", pad);
+                } else if indent == 0 {
+                    output += &self.format_map(map, indent);
+                } else {
+                    for (k, v) in map {
+                        let key_str = match k {
+                            Value::String(s) => s.clone(),
+                            other => format!("{:?}", other),
+                        };
+
+                        let val_str = self
+                            .format_value_as_string(v, indent + 1)
+                            .trim()
+                            .to_string();
+                        let val_lines: Vec<_> = val_str.lines().collect();
+
+                        output +=
+                            &format!("{}{}: {}\n", pad, key_str, val_lines.first().unwrap_or(&""));
+                        for line in val_lines.iter().skip(1) {
+                            output += &format!("{}  {}\n", pad, line);
+                        }
+                    }
+                }
+            }
+        }
+
+        output
+    }
+}
+
+//TODO write test to check that the output is what it should be
+//
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::modules::dns::DnsScore;
+    use crate::topology::{self, HAClusterTopology};
+
+    #[test]
+    fn test_format_values_as_string() {
+        let dns_score = Box::new(DnsScore::new(vec![], None));
+        let print_score_output =
+            <DnsScore as ScoreToString<HAClusterTopology>>::print_score_details(&dns_score);
+        let expected_empty_dns_score_table = "\n+--------------------------+--------------------------------------------------+\n| score_name               | DnsScore                                         |\n+--------------------------+--------------------------------------------------+\n| dns_entries              | []                                               |\n| register_dhcp_leases     | None                                             |\n+--------------------------+--------------------------------------------------+\n\n\n";
+        assert_eq!(print_score_output, expected_empty_dns_score_table);
+    }
+}

harmony/src/domain/topology/load_balancer.rs

@@ -46,6 +46,7 @@ pub struct LoadBalancerService {
 
 #[derive(Debug, PartialEq, Clone, Serialize)]
 pub struct BackendServer {
+    // TODO should not be a string, probably IPAddress
     pub address: String,
     pub port: u16,
 }