101 lines
2.2 KiB
Go
101 lines
2.2 KiB
Go
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package index
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import (
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"html/template"
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"net/url"
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"os"
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"path"
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"strings"
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"sync"
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"time"
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)
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const templateName = "index.go.html"
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func NewPage(dataStore string, cacheTemplates bool) *Page {
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var ptm *sync.Mutex
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if cacheTemplates {
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ptm = &sync.Mutex{}
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}
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pageToReturn := &Page{
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DataStore: dataStore,
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PageTemplateMutex: ptm,
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}
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if !cacheTemplates {
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_, _ = pageToReturn.getPageTemplate()
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}
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return pageToReturn
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}
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type Page struct {
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DataStore string
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PageTemplateMutex *sync.Mutex
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PageTemplate *template.Template
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LastModified time.Time
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}
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func (p *Page) GetPath() string {
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return "/index.go"
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}
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func (p *Page) GetLastModified() time.Time {
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return p.LastModified
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}
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func (p *Page) GetCacheIDExtension(urlParameters url.Values) string {
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toReturn := ""
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if urlParameters.Has("order") {
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if theParameter := strings.ToLower(urlParameters.Get("order"));
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theParameter == "start" || theParameter == "end" || theParameter == "name" || theParameter == "duration" {
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toReturn += "order=" + theParameter + "&"
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}
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}
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if urlParameters.Has("sort") {
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if theParameter := strings.ToLower(urlParameters.Get("sort"));
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theParameter == "asc" || theParameter == "ascending" || theParameter == "desc" || theParameter == "descending" {
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toReturn += "sort=" + theParameter
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}
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}
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return strings.TrimRight(toReturn, "&")
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}
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func (p *Page) GetContents(urlParameters url.Values) (contentType string, contents []byte, canCache bool) {
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//TODO implement me
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panic("implement me")
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}
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func (p *Page) PurgeTemplate() {
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if p.PageTemplateMutex != nil {
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p.PageTemplateMutex.Lock()
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p.PageTemplate = nil
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p.PageTemplateMutex.Unlock()
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}
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}
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func (p *Page) getPageTemplate() (*template.Template, error) {
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if p.PageTemplateMutex != nil {
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p.PageTemplateMutex.Lock()
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defer p.PageTemplateMutex.Unlock()
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}
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if p.PageTemplate == nil {
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thePath := templateName
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if p.DataStore != "" {
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thePath = path.Join(p.DataStore, thePath)
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}
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loadedData, err := os.ReadFile(thePath)
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if err != nil {
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return nil, err
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}
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tmpl, err := template.New(templateName).Parse(string(loadedData))
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if err != nil {
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return nil, err
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}
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if p.PageTemplateMutex != nil {
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p.PageTemplate = tmpl
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}
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return tmpl, nil
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} else {
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return p.PageTemplate, nil
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}
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}
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