speedtest-tui 0.1.1

A terminal-based network speed test tool with real-time gauges and graphs
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use anyhow::Result;
use std::path::PathBuf;

use crate::config::Config;
use crate::storage::history;

pub fn export_to_csv() -> Result<PathBuf> {
    let history = history::load_history()?;

    // Create exports directory
    let exports_dir = Config::config_dir()?.join("exports");
    std::fs::create_dir_all(&exports_dir)?;

    // Generate filename with timestamp
    let filename = format!(
        "speedtest_{}.csv",
        chrono::Local::now().format("%Y-%m-%d_%H-%M-%S")
    );
    let path = exports_dir.join(&filename);

    // Write CSV
    let mut writer = csv::Writer::from_path(&path)?;

    // Write header
    writer.write_record([
        "timestamp",
        "provider",
        "server",
        "ping_ms",
        "jitter_ms",
        "download_mbps",
        "download_peak_mbps",
        "upload_mbps",
        "upload_peak_mbps",
        "ip",
        "isp",
        "location",
    ])?;

    // Write data
    for entry in &history {
        writer.write_record([
            entry.timestamp.format("%Y-%m-%d %H:%M:%S").to_string(),
            entry.provider.clone(),
            entry.server.clone().unwrap_or_default(),
            entry
                .ping
                .as_ref()
                .map(|p| format!("{:.2}", p.latency_ms))
                .unwrap_or_default(),
            entry
                .ping
                .as_ref()
                .map(|p| format!("{:.2}", p.jitter_ms))
                .unwrap_or_default(),
            entry
                .download
                .as_ref()
                .map(|d| format!("{:.2}", d.speed_mbps))
                .unwrap_or_default(),
            entry
                .download
                .as_ref()
                .map(|d| format!("{:.2}", d.peak_speed_mbps))
                .unwrap_or_default(),
            entry
                .upload
                .as_ref()
                .map(|u| format!("{:.2}", u.speed_mbps))
                .unwrap_or_default(),
            entry
                .upload
                .as_ref()
                .map(|u| format!("{:.2}", u.peak_speed_mbps))
                .unwrap_or_default(),
            entry
                .connection_info
                .as_ref()
                .map(|c| c.ip.clone())
                .unwrap_or_default(),
            entry
                .connection_info
                .as_ref()
                .and_then(|c| c.isp.clone())
                .unwrap_or_default(),
            entry
                .connection_info
                .as_ref()
                .and_then(|c| c.location.clone())
                .unwrap_or_default(),
        ])?;
    }

    writer.flush()?;

    Ok(path)
}

#[allow(dead_code)]
pub fn export_result_to_json(
    result: &crate::network::SpeedTestResult,
    path: &PathBuf,
) -> Result<()> {
    let content = serde_json::to_string_pretty(result)?;
    std::fs::write(path, content)?;
    Ok(())
}

#[cfg(test)]
mod tests {
    #[test]
    fn test_export_empty_history() {
        // This test would need a mock or temp directory
        // For now, just ensure the function compiles
    }
}