use crate::cli::args::Method;
use crate::core::collection::{
Auth, Collection, CollectionItem, Folder, KVParam, Request, RequestBody,
};
use crate::core::parser::SourceParser;
use crate::core::parser::models::{FieldType, Model, ModelField, ModelRegistry};
use regex::Regex;
use std::path::Path;
use walkdir::WalkDir;
pub struct ExpressParser;
impl ExpressParser {
fn parse_ts_type(type_str: &str) -> FieldType {
let type_str = type_str.trim();
if type_str.is_empty() {
return FieldType::Unknown;
}
match type_str.to_lowercase().as_str() {
"string" => FieldType::String,
"number" => FieldType::Number,
"boolean" => FieldType::Boolean,
"date" => FieldType::DateTime,
t if t.contains("Record<") || t.contains("Map<") => {
FieldType::Map(Box::new(FieldType::String), Box::new(FieldType::Unknown))
}
t if t.ends_with("[]") => {
let inner = &t[..t.len() - 2];
FieldType::Array(Box::new(Self::parse_ts_type(inner)))
}
t if t.starts_with("Array<") && t.ends_with('>') => {
let inner = &t[6..t.len() - 1];
FieldType::Array(Box::new(Self::parse_ts_type(inner)))
}
_ => FieldType::Object(type_str.to_string()),
}
}
}
impl SourceParser for ExpressParser {
fn parse(&self, project_path: &Path) -> anyhow::Result<Collection> {
let mut collection = Collection::new(format!(
"{} (Express)",
project_path
.file_name()
.unwrap_or_default()
.to_string_lossy()
));
collection.env_vars.push(KVParam {
key: "baseUrl".to_string(),
value: "http://localhost:3000".to_string(),
enabled: true,
description: Some("Base URL for the service".to_string()),
});
let mut registry = ModelRegistry::new();
let interface_regex =
Regex::new(r"(?m)^(?:export\s+)?(?:interface|type)\s+([a-zA-Z0-9_]+)\s*(?:=)?\s*\{")
.unwrap();
let field_regex = Regex::new(r"^\s*([a-zA-Z0-9_]+)\s*\??\s*:\s*([^;,\n]+)").unwrap();
for entry in WalkDir::new(project_path)
.into_iter()
.filter_map(|e| e.ok())
.filter(|e| e.path().extension().map_or(false, |ext| ext == "ts"))
{
let path_str = entry.path().to_string_lossy();
if path_str.contains("node_modules")
|| path_str.contains("dist")
|| path_str.contains(".next")
{
continue;
}
if let Ok(content) = std::fs::read_to_string(entry.path()) {
let lines: Vec<&str> = content.lines().collect();
let mut i = 0;
while i < lines.len() {
if let Some(cap) = interface_regex.captures(lines[i]) {
let name = cap[1].to_string();
let mut fields = Vec::new();
i += 1;
while i < lines.len() && !lines[i].contains('}') {
if let Some(fcap) = field_regex.captures(lines[i]) {
fields.push(ModelField {
name: fcap[1].to_string(),
field_type: Self::parse_ts_type(&fcap[2]),
});
}
i += 1;
}
registry.add_model(Model { name, fields });
} else {
i += 1;
}
}
}
}
let route_regex = Regex::new(
r#"(?:app|router|auth)\.(get|post|put|patch|delete)\s*(?:<[^>]+>)?\s*\(\s*['"]([^'"]+)['"]"#,
)
.unwrap();
for entry in WalkDir::new(project_path)
.into_iter()
.filter_map(|e| e.ok())
.filter(|e| {
e.path()
.extension()
.map_or(false, |ext| ext == "js" || ext == "ts")
})
{
let path_str = entry.path().to_string_lossy();
if path_str.contains("node_modules")
|| path_str.contains("dist")
|| path_str.contains(".next")
{
continue;
}
if let Ok(content) = std::fs::read_to_string(entry.path()) {
let mut requests = Vec::new();
for cap in route_regex.captures_iter(&content) {
let method_str = &cap[1];
let url_path = &cap[2];
let method = match method_str.to_lowercase().as_str() {
"post" => Method::Post,
"put" => Method::Put,
"patch" => Method::Patch,
"delete" => Method::Delete,
_ => Method::Get,
};
let mut body = RequestBody::default();
let start_pos = cap.get(0).unwrap().start();
let end_pos = cap.get(0).unwrap().end();
let slice_start = if start_pos > 100 { start_pos - 100 } else { 0 };
let slice_end = std::cmp::min(content.len(), end_pos + 100);
let search_area = &content[slice_start..slice_end];
let req_type_regex =
Regex::new(r"Request\s*<[^,]+,\s*[^,]+,\s*([a-zA-Z0-9_]+)>").unwrap();
if let Some(tcap) = req_type_regex.captures(search_area) {
let body_type = &tcap[1];
if let Some(json_body) = registry.generate_json(body_type) {
body = RequestBody::raw(json_body, "application/json".to_string());
}
}
requests.push(CollectionItem::Request(Request {
id: uuid::Uuid::new_v4().to_string(),
name: format!("{} {}", method_str.to_uppercase(), url_path),
method,
url: format!("{{{{baseUrl}}}}{}", url_path),
params: Vec::new(),
headers: Vec::new(),
auth: Auth::default(),
body,
pre_request_script: None,
post_response_script: None,
}));
}
if !requests.is_empty() {
let file_name = entry
.path()
.file_name()
.unwrap_or_default()
.to_string_lossy()
.to_string();
let mut folder = Folder::new(file_name);
folder.items = requests;
collection.items.push(CollectionItem::Folder(folder));
}
}
}
Ok(collection)
}
}