package lib

import (
	"fmt"
	"net/http"
)

type RedmineResponse struct {
	Issues []struct {
		ID        int
		UpdatedOn string
		Subject   string
	}
}

type RedmineFetcher struct {
	Config Config
	Cache  *Cache
}

func (f RedmineFetcher) Fetch() []string {
	redmineURL := fmt.Sprintf("%s/issues.json", f.Config.RedmineBaseURL)
	req, _ := http.NewRequest("GET", redmineURL, nil)
	req.Header.Set("X-Redmine-API-Key", f.Config.RedmineKey)

	var r RedmineResponse

	if err := getJSON(req, &r); err != nil {
		return []string{}
	}

	if len(r.Issues) == 0 {
		return []string{}
	}

	i := r.Issues[0]
	if f.Cache.TryUpdate("redmine", i.UpdatedOn) {
		url := fmt.Sprintf("%s/issues/%d", f.Config.RedmineBaseURL, i.ID)
		return []string{fmt.Sprintf("Redmine: #%d %s <%s>", i.ID, i.Subject, url)}
	}
	return []string{}
}