use owlen_core::McpToolCall;
use owlen_core::mcp::remote_client::RemoteMcpClient;
use std::fs::File;
use std::io::Write;
use tempfile::tempdir;

#[tokio::test]
async fn remote_file_server_read_and_list() {
    // Create temporary directory with a file
    let dir = tempdir().expect("tempdir failed");
    let file_path = dir.path().join("hello.txt");
    let mut file = File::create(&file_path).expect("create file");
    writeln!(file, "world").expect("write file");

    // Change current directory for the test process so the server sees the temp dir as its root
    std::env::set_current_dir(dir.path()).expect("set cwd");

    // Ensure the MCP server binary is built.
    // Build the MCP server binary using the workspace manifest.
    let manifest_path = std::path::Path::new(env!("CARGO_MANIFEST_DIR"))
        .join("../..")
        .join("Cargo.toml");
    let build_status = std::process::Command::new("cargo")
        .args(["build", "-p", "owlen-mcp-server", "--manifest-path"])
        .arg(manifest_path)
        .status()
        .expect("failed to run cargo build for MCP server");
    assert!(build_status.success(), "MCP server build failed");

    // Spawn remote client after the cwd is set and binary built
    let client = RemoteMcpClient::new().await.expect("remote client init");

    // Read file via MCP
    let call = McpToolCall {
        name: "resources_get".to_string(),
        arguments: serde_json::json!({"path": "hello.txt"}),
    };
    let resp = client.call_tool(call).await.expect("call_tool");
    let content: String = serde_json::from_value(resp.output).expect("parse output");
    assert!(content.trim().ends_with("world"));

    // List directory via MCP
    let list_call = McpToolCall {
        name: "resources_list".to_string(),
        arguments: serde_json::json!({"path": "."}),
    };
    let list_resp = client.call_tool(list_call).await.expect("list_tool");
    let entries: Vec<String> = serde_json::from_value(list_resp.output).expect("parse list");
    assert!(entries.contains(&"hello.txt".to_string()));

    // Cleanup handled by tempdir
}