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Split graph population function into three

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Juno Takano 2025-12-09 23:45:30 -03:00
commit 8938f98199
1 changed files with 65 additions and 48 deletions
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135
src/formats.rs
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@ -2,6 +2,82 @@ use std::collections::HashMap;
use crate::types::*;
pub fn populate_graph() -> Graph {
let toml_source = match std::fs::read_to_string("./static/graph.toml") {
Ok(s) => s,
Err(e) => format!("Error: {e}"),
};
let graph = deserialize_graph(Format::Toml, &toml_source);
let nodes = modulate_nodes(graph.nodes.clone());
Graph {
nodes: nodes.clone(),
incoming: make_incoming(nodes.clone()),
..graph
}
}
fn modulate_nodes(old_nodes: HashMap<String, Node>) -> HashMap<String, Node> {
let mut nodes: HashMap<String, Node> = HashMap::new();
for (key, node) in old_nodes.iter() {
let connections = node.connections.clone().unwrap_or_default();
let mut vec = connections.clone();
for (i, edge) in connections.iter().enumerate() {
let mut new_edge = edge.clone();
// Populate empty "from" IDs in edges with node's ID
if edge.from == "" {
new_edge.from = key.to_string();
}
// Flag detached edges
if ! old_nodes.contains_key(&edge.to) {
new_edge.detached = true;
}
vec[i] = new_edge;
}
let new_node = Node {
connections: Some(vec),
..node.clone()
};
nodes.insert(key.to_string(), new_node);
}
nodes
}
// Construct a HashMap with incoming connections (reversed edges)
fn make_incoming(nodes: HashMap<String, Node>) -> HashMap<String, Vec<Edge>> {
let mut incoming: HashMap<String, Vec<Edge>> = HashMap::new();
for node in nodes.clone().into_values() {
let empty_vec: Vec<Edge> = vec![];
for edge in node.connections.clone().unwrap_or_default().iter() {
let vec = incoming.get(&edge.to.clone()).unwrap_or(&empty_vec);
if vec.contains(edge) {
vec.clone().extend_from_slice(&[edge.clone()]);
incoming.insert(edge.to.clone(), vec.clone());
} else {
incoming.insert(edge.to.clone(), vec![edge.clone()]);
}
}
}
incoming
}
pub enum Format {
Toml,
Json
@ -39,63 +115,4 @@ pub fn deserialize_graph(in_format: Format, serial: &String) -> Graph {
}
}
pub fn populate_graph() -> Graph {
let toml_source = match std::fs::read_to_string("./static/graph.toml") {
Ok(s) => s,
Err(e) => format!("Error: {e}"),
};
let graph = deserialize_graph(Format::Toml, &toml_source);
let mut new_nodes: HashMap<String, Node> = HashMap::new();
let mut incoming: HashMap<String, Vec<Edge>> = HashMap::new();
for (key, node) in graph.nodes.iter() {
let connections = node.connections.clone().unwrap_or_default();
let mut vec = connections.clone();
for (i, edge) in connections.iter().enumerate() {
let mut new_edge = edge.clone();
if edge.from == "" {
new_edge.from = key.to_string();
}
if ! graph.nodes.contains_key(&edge.to) {
new_edge.detached = true;
}
vec[i] = new_edge;
}
let new_node = Node {
connections: Some(vec),
..node.clone()
};
new_nodes.insert(key.to_string(), new_node);
}
// Construct a HashMap with incoming connections (reversed edges)
for node in new_nodes.clone().into_values() {
let empty_vec: Vec<Edge> = vec![];
for edge in node.connections.clone().unwrap_or_default().iter() {
let vec = incoming.get(&edge.to.clone()).unwrap_or(&empty_vec);
if vec.contains(edge) {
vec.clone().extend_from_slice(&[edge.clone()]);
incoming.insert(edge.to.clone(), vec.clone());
} else {
incoming.insert(edge.to.clone(), vec![edge.clone()]);
}
}
}
Graph {
nodes: new_nodes,
incoming: incoming,
..graph
}
}