package nodeclient

import (
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"time"

	"github.com/orohi/vpn-panel/internal/models"
)

type HealthResponse struct {
	OK       bool     `json:"ok"`
	Name     string   `json:"name"`
	Version  string   `json:"version"`
	Uptime   int64    `json:"uptime_sec"`
	Protocols []string `json:"protocols"`
}

func Health(n *models.Node) (*HealthResponse, error) {
	url := fmt.Sprintf("http://%s:%d/health", n.Host, n.NodePort)
	req, err := http.NewRequest(http.MethodGet, url, nil)
	if err != nil {
		return nil, err
	}
	req.Header.Set("Authorization", "Bearer "+n.SecretKey)

	client := &http.Client{Timeout: 8 * time.Second}
	res, err := client.Do(req)
	if err != nil {
		return nil, err
	}
	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)
	if res.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("status %d: %s", res.StatusCode, string(body))
	}
	var hr HealthResponse
	if err := json.Unmarshal(body, &hr); err != nil {
		return nil, err
	}
	return &hr, nil
}