Files
Charon/backend/internal/services/update_service.go

105 lines
2.4 KiB
Go

package services
import (
"encoding/json"
"net/http"
"time"
"github.com/Wikid82/charon/backend/internal/version"
)
type UpdateService struct {
currentVersion string
repoOwner string
repoName string
lastCheck time.Time
cachedResult *UpdateInfo
apiURL string // For testing
}
type UpdateInfo struct {
Available bool `json:"available"`
LatestVersion string `json:"latest_version"`
ChangelogURL string `json:"changelog_url"`
}
type githubRelease struct {
TagName string `json:"tag_name"`
HTMLURL string `json:"html_url"`
}
func NewUpdateService() *UpdateService {
return &UpdateService{
currentVersion: version.Version,
repoOwner: "Wikid82",
repoName: "charon",
apiURL: "https://api.github.com/repos/Wikid82/charon/releases/latest",
}
}
// SetAPIURL sets the GitHub API URL for testing.
func (s *UpdateService) SetAPIURL(url string) {
s.apiURL = url
}
// SetCurrentVersion sets the current version for testing.
func (s *UpdateService) SetCurrentVersion(v string) {
s.currentVersion = v
}
// ClearCache clears the update cache for testing.
func (s *UpdateService) ClearCache() {
s.cachedResult = nil
s.lastCheck = time.Time{}
}
func (s *UpdateService) CheckForUpdates() (*UpdateInfo, error) {
// Cache for 1 hour
if s.cachedResult != nil && time.Since(s.lastCheck) < 1*time.Hour {
return s.cachedResult, nil
}
client := &http.Client{Timeout: 5 * time.Second}
req, err := http.NewRequest("GET", s.apiURL, nil)
if err != nil {
return nil, err
}
req.Header.Set("User-Agent", "Charon-Update-Checker")
resp, err := client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
// If rate limited or not found, just return no update available
return &UpdateInfo{Available: false}, nil
}
var release githubRelease
if err := json.NewDecoder(resp.Body).Decode(&release); err != nil {
return nil, err
}
// Simple string comparison for now.
// In production, use a semver library.
// Assuming tags are "v0.1.0" and version is "0.1.0"
latest := release.TagName
if len(latest) > 0 && latest[0] == 'v' {
latest = latest[1:]
}
info := &UpdateInfo{
Available: latest != s.currentVersion && latest != "",
LatestVersion: release.TagName,
ChangelogURL: release.HTMLURL,
}
s.cachedResult = info
s.lastCheck = time.Now()
return info, nil
}