/// P0-BOOK-004: Network Programming TDD Tests
/// These tests define the expected behavior for network programming features
/// Based on ruchy-book chapter 9 examples that are currently broken

use assert_cmd::Command;
use predicates::prelude::*;
use std::fs;
use tempfile::TempDir;

#[test]
fn test_tcp_server_syntax() {
    let dir = TempDir::new().unwrap();
    let file_path = dir.path().join("test.ruchy");
    
    // Test TCP server syntax (currently broken with "Unexpected token: ColonColon")
    let code = r#"
import std::net
let server = net::TcpListener::bind("127.0.0.1:9000")
println("Server listening on port 9000")
"#;
    
    fs::write(&file_path, code).unwrap();
    
    Command::cargo_bin("ruchy")
        .unwrap()
        .args(["run", file_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("Server listening on port 9000"));
}

#[test]
fn test_http_server_syntax() {
    let dir = TempDir::new().unwrap();
    let file_path = dir.path().join("test.ruchy");
    
    // Test HTTP server creation (simplified)
    let code = r#"
import std::net::http
let server = http::Server::new("0.0.0.0:8080")
println("HTTP server created")
"#;
    
    fs::write(&file_path, code).unwrap();
    
    Command::cargo_bin("ruchy")
        .unwrap()
        .args(["run", file_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("HTTP server created"));
}

#[test]
fn test_tcp_client_syntax() {
    let dir = TempDir::new().unwrap();
    let file_path = dir.path().join("test.ruchy");
    
    // Test TCP client connection syntax
    let code = r#"
import std::net
// Don't actually connect, just test syntax
fn connect_to_server(addr: str) {
    println("Would connect to: " + addr)
}
connect_to_server("127.0.0.1:9000")
"#;
    
    fs::write(&file_path, code).unwrap();
    
    Command::cargo_bin("ruchy")
        .unwrap()
        .args(["run", file_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("Would connect to: 127.0.0.1:9000"));
}

#[test]
fn test_url_fetch_syntax() {
    let dir = TempDir::new().unwrap();
    let file_path = dir.path().join("test.ruchy");
    
    // Test URL fetch syntax
    let code = r#"
import std::net::http
// Mock implementation for testing
fn fetch(url: str) {
    println("Fetching: " + url)
}
fetch("https://api.example.com/data")
"#;
    
    fs::write(&file_path, code).unwrap();
    
    Command::cargo_bin("ruchy")
        .unwrap()
        .args(["run", file_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("Fetching: https://api.example.com/data"));
}

#[test]
fn test_json_response_syntax() {
    let dir = TempDir::new().unwrap();
    let file_path = dir.path().join("test.ruchy");
    
    // Test JSON response handling
    let code = r#"
let data = {
    status: "success",
    count: 42
}
println("Status: " + data.status)
println("Count: " + data.count.to_s())
"#;
    
    fs::write(&file_path, code).unwrap();
    
    Command::cargo_bin("ruchy")
        .unwrap()
        .args(["run", file_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("Status: success"))
        .stdout(predicate::str::contains("Count: 42"));
}

#[test]
fn test_socket_address_parsing() {
    let dir = TempDir::new().unwrap();
    let file_path = dir.path().join("test.ruchy");
    
    // Test socket address parsing
    let code = r#"
let host = "127.0.0.1"
let port = 8080
let addr = host + ":" + port.to_s()
println("Address: " + addr)
"#;
    
    fs::write(&file_path, code).unwrap();
    
    Command::cargo_bin("ruchy")
        .unwrap()
        .args(["run", file_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("Address: 127.0.0.1:8080"));
}

#[test]
fn test_net_module_imports() {
    let dir = TempDir::new().unwrap();
    let file_path = dir.path().join("test.ruchy");
    
    // Test that std::net module can be imported
    let code = r#"
import std::net
println("Network module imported successfully")
"#;
    
    fs::write(&file_path, code).unwrap();
    
    Command::cargo_bin("ruchy")
        .unwrap()
        .args(["run", file_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("Network module imported successfully"));
}

#[test]
fn test_http_module_imports() {
    let dir = TempDir::new().unwrap();
    let file_path = dir.path().join("test.ruchy");
    
    // Test that std::net::http module can be imported
    let code = r#"
import std::net::http
println("HTTP module imported successfully")
"#;
    
    fs::write(&file_path, code).unwrap();
    
    Command::cargo_bin("ruchy")
        .unwrap()
        .args(["run", file_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("HTTP module imported successfully"));
}