package kemono

import (
	"context"
	"encoding/json"

	"github.com/carlmjohnson/requests"
)

// FetchCreators fetch Creator list
func (k *kemono) FetchCreators() (creators []Creator, err error) {
	// k.log.Print("fetching creator list...")
	// url := fmt.Sprintf("https://%s/api/v1/creators", k.Site)
	// resp, err := k.Downloader.Get(url)
	// if err != nil {
	// 	return nil, fmt.Errorf("fetch creator list error: %s", err)
	// }

	// reader, err := handleCompressedHTTPResponse(resp)
	// if err != nil {
	// 	return nil, err
	// }

	// data, err := ioutil.ReadAll(reader)
	// if err != nil {
	// 	return nil, fmt.Errorf("fetch creator list error: %s", err)
	// }
	// err = json.Unmarshal(data, &creators)
	// if err != nil {
	// 	return nil, fmt.Errorf("unmarshal creator list error: %s", err)
	// }
	return
}

// FetchPosts fetch post list
func (k *kemono) FetchPosts(ctx context.Context, service, id string) (posts []Post, err error) {
	const perUnit = 50
	page := 0

	for {
		k.log.Printf("fetching post list page %d...", page)
		var ps []json.RawMessage
		err = requests.URL(k.Site).
			Pathf("/api/v1/%s/user/%s", service, id).
			ParamInt("o", page*perUnit).
			Client(k.client).
			CheckStatus(200).
			ToJSON(&ps).
			Fetch(ctx)

		if err != nil {
			return nil, err
		}

		if len(ps) == 0 {
			break
		}

		for _, raw := range ps {
			var p Post
			err := json.Unmarshal(raw, &p)
			if err != nil {
				return posts, nil
			}
		}
	}

	return posts, nil
}