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package site
import (
"errors"
"fmt"
"net/http"
"os"
"path"
"path/filepath"
"regexp"
"strings"
"time"
"github.com/LMBishop/scrapbook/pkg/config"
)
const versionRegex = "[0-9]{4}_[0-9]{2}_[0-9]{2}_[0-9]{2}_[0-9]{2}_[0-9]{2}"
const timeFormat = "2006_01_02_15_04_05"
type Site struct {
Name string
Path string
Handler http.Handler
SiteConfig *config.SiteConfig
}
func NewSite(name string, dir string, config *config.SiteConfig) *Site {
var site Site
site.Name = name
site.Path = dir
site.SiteConfig = config
site.Handler = http.FileServer(siteFS{http.Dir(path.Join(dir, "default"))})
return &site
}
func CreateNewSite(name string, baseDir string, host string) (*Site, error) {
dir := path.Join(baseDir, name)
_, err := os.Stat(dir)
if err == nil {
return nil, fmt.Errorf("site with name already exists: %s", name)
}
if !errors.Is(err, os.ErrNotExist) {
return nil, fmt.Errorf("failed to check site uniqueness: %w", err)
}
cfg := &config.SiteConfig{
Host: host,
}
site := NewSite(name, dir, cfg)
err = os.Mkdir(dir, 0o755)
if err != nil {
return nil, fmt.Errorf("failed to create directory: %w", err)
}
err = config.WriteSiteConfig(path.Join(dir, "site.toml"), cfg)
if err != nil {
return nil, fmt.Errorf("failed to write site config: %w", err)
}
return site, nil
}
func (s *Site) GetCurrentPath() string {
return path.Join(s.Path, "default")
}
func (s *Site) GetCurrentVersion() (string, error) {
dir, err := filepath.EvalSymlinks(path.Join(s.Path, "default"))
if err != nil {
return "", err
}
return filepath.Base(dir), nil
}
func (s *Site) UpdateVersion(newVersion string) error {
newVersionPath := path.Join(s.Path, newVersion)
stat, err := os.Stat(newVersionPath)
if err != nil {
return err
}
if !stat.IsDir() {
return fmt.Errorf("not a directory: %s", newVersionPath)
}
currentVersionPath := s.GetCurrentPath()
os.Remove(currentVersionPath)
return os.Symlink(newVersion, currentVersionPath)
}
func (s *Site) GetAllVersions() ([]string, error) {
entries, err := os.ReadDir(s.Path)
if err != nil {
return nil, err
}
var versions []string
for _, entry := range entries {
if !entry.IsDir() {
continue
}
match, err := regexp.MatchString(versionRegex, entry.Name())
if err != nil {
return nil, err
}
if match {
versions = append(versions, entry.Name())
}
}
return versions, err
}
func (s *Site) CreateNewVersion() (string, error) {
t := time.Now()
dirName := t.Format("2006_01_02_15_04_05")
newVersionDir := path.Join(s.Path, dirName)
err := os.MkdirAll(newVersionDir, os.FileMode(0o755))
if err != nil {
return "", err
}
return dirName, nil
}
func (s *Site) EvaluateSiteStatus() string {
if s.SiteConfig.Host == "" {
return "inactive"
}
stat, err := os.Stat(s.GetCurrentPath())
if err != nil || !stat.IsDir() {
return "inactive"
}
if s.SiteConfig.Flags&config.FlagDisable != 0 {
return "inactive"
}
return "live"
}
func (s *Site) EvaluateSiteStatusReason() string {
if s.SiteConfig.Host == "" {
return "This site is not served by scrapbook"
}
stat, err := os.Stat(s.GetCurrentPath())
if err != nil || !stat.IsDir() {
return "This site is inacessible because no version is active"
}
if s.SiteConfig.Flags&config.FlagDisable != 0 {
return "This site is inacessible because it is disabled"
}
return "This site is live"
}
func (s *Site) ConvertFlagsToString() string {
var bits []string
bitNames := []string{"D", "T", "I", "P", "R"}
for i := 0; i < len(bitNames); i++ {
if s.SiteConfig.Flags&(1<<i) != 0 {
bits = append(bits, bitNames[i])
} else {
bits = append(bits, "-")
}
}
return strings.Join(bits, "")
}
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