use serde::{Serialize, Deserialize};

#[derive(Serialize)]
struct ActivationReport {
    sn: String,
    device_id: String,
    timestamp: String,
}

#[derive(Deserialize)]
struct ApiResponse {
    status: String,
    message: Option<String>,
}

pub struct PlatformClient {
    base_url: String,
    client: reqwest::Client,
}

impl PlatformClient {
    pub fn new(base_url: &str) -> Self {
        PlatformClient {
            base_url: base_url.trim_end_matches('/').to_string(),
            client: reqwest::Client::new(),
        }
    }

    pub async fn report_activation(&self, sn: &str, device_id: &str) -> Result<(), String> {
        let body = ActivationReport {
            sn: sn.to_string(),
            device_id: device_id.to_string(),
            timestamp: chrono::Utc::now().to_rfc3339(),
        };

        let url = format!("{}/api/v1/licenses/activate", self.base_url);
        let resp = self.client
            .post(&url)
            .json(&body)
            .send()
            .await
            .map_err(|e| format!("请求失败: {}", e))?;

        if resp.status().is_success() {
            Ok(())
        } else {
            let status = resp.status();
            let text = resp.text().await.unwrap_or_default();
            Err(format!("HTTP {}: {}", status, text))
        }
    }
}