package main

import (
	"fmt"
	"net/http"
	"strings"
	"time"
)

type Notifier struct {
	httpClient *http.Client
	channel    string
}

func NewNotifier(channel string) *Notifier {
	return &Notifier{
		httpClient: &http.Client{Timeout: 10 * time.Second},
		channel:    channel,
	}
}

func (n *Notifier) Send(msg string) error {
	ntfyUrl := fmt.Sprintf("https://ntfy.sh/%s", n.channel)
	req, err := http.NewRequest(http.MethodPost, ntfyUrl, strings.NewReader(msg))
	if err != nil {
		return err
	}
	req.Header.Set("Content-Type", "text/plain")
	req.Header.Set("Title", "DoctoCheck")
	req.Header.Set("Tags", "medical_symbol")
	resp, err := n.httpClient.Do(req)
	if err != nil {
		return err
	}
	defer func() { _ = resp.Body.Close() }()

	if resp.StatusCode != http.StatusOK {
		return fmt.Errorf("unexpected status %d", resp.StatusCode)
	}

	return nil
}