package storygraph

import (
	"context"
	"fmt"
	"net/http"
	"time"

	"golang.org/x/time/rate"
)

type HTTPClient struct {
	Cookie string

	client  *http.Client
	rl      *rate.Limiter
	ctx     context.Context
	retries int
}

func New(cookie string) *HTTPClient {
	return &HTTPClient{
		Cookie: cookie,

		client:  &http.Client{},
		rl:      rate.NewLimiter(rate.Every(1*time.Second), 15),
		ctx:     context.Background(),
		retries: 3,
	}
}

func (h *HTTPClient) Get(url string) (*http.Response, error) {
	for h.retries > 0 {
		if err := h.rl.Wait(h.ctx); err != nil {
			fmt.Println("Error waiting for rate limiter:", err)
			return nil, err
		}

		req, err := http.NewRequest("GET", url, nil)
		if err != nil {
			fmt.Println("Error creating request:", err)
			return nil, err
		}

		req.Header.Set("Cookie", h.Cookie)
		resp, err := h.client.Do(req)
		if err != nil {
			fmt.Println("Error making request:", err)
			return nil, err
		}

		if resp.StatusCode == 429 {
			fmt.Println("Rate limit exceeded, retrying...")
			h.retries--
			time.Sleep(30 * time.Second)
			continue
		}

		if resp.StatusCode != 200 {
			fmt.Println("Error fetching page:", resp.StatusCode)
			return resp, err
		}

		return resp, nil
	}

	fmt.Println("Max retries exceeded")
	return nil, fmt.Errorf("max retries exceeded")
}