package lib

import (
	"context"
	"errors"
	"fmt"
	"net/http"
	"net/url"
)

type Forgejo struct {
	Server url.URL
	Token  string
	Branch string
}

var ErrNotFound = errors.New("404 not found")

// headers must ot be nil
func (f *Forgejo) GetFile(ctx context.Context, headers map[string]string, user, repo, branch, file string) (ret *http.Response, err error) {
	u := f.Server
	u.Path = "/api/v1/repos/" + user + "/" + repo + "/raw/" + file
	p := u.Query()
	p.Set("ref", branch)
	u.RawQuery = p.Encode()
	fmt.Println(u.String())
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil)
	if err != nil {
		return
	}

	for k, v := range headers {
		if v == "" {
			continue
		}
		req.Header.Set(k, v)
	}
	req.Header.Set("Authorization", "token "+f.Token)
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return
	}
	if resp.StatusCode == http.StatusNotFound {
		err = ErrNotFound
		return
	}

	return resp, nil
}