Files
Jānis Kacēns 177b4e8fd8 Phase 5: library & stats
- Full library home page: question list with per-user mastery stats,
  search/source filter, sort (A-Z, weakest first, most-seen), source
  breakdown in header, Take a test CTA.
- GET/POST /questions/{id}: view and edit question text, source, answers;
  radio-select correct answer; shows seen×/correct% stat.
- POST /questions/{id}/delete: hard delete (cascades to answers via FK).
- repo: ListQuestions supports SortWeakest/SortMostSeen via LEFT JOIN;
  added CountBySource, UpdateQuestion, UpdateAnswers, DeleteQuestion.
- render: added pct template func (correct*100/seen).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-11 13:49:22 +03:00

60 lines
1.5 KiB
Go

package handlers
import (
"html/template"
"log/slog"
"net/http"
"path/filepath"
"qbank/internal/auth"
)
var tmplFuncs = template.FuncMap{
"inc": func(i int) int { return i + 1 },
"pct": func(correct, seen int) int {
if seen == 0 {
return 0
}
return correct * 100 / seen
},
}
// Renderer parses and executes HTML templates from a directory.
type Renderer struct {
dir string
}
func NewRenderer(dir string) *Renderer { return &Renderer{dir: dir} }
// Render executes layout.html + <name>.html, passing data to the "layout" template.
func (r *Renderer) Render(w http.ResponseWriter, status int, name string, data any) {
t, err := template.New("").Funcs(tmplFuncs).ParseFiles(
filepath.Join(r.dir, "layout.html"),
filepath.Join(r.dir, name+".html"),
)
if err != nil {
slog.Error("parse template", "name", name, "err", err)
http.Error(w, "internal error", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
w.WriteHeader(status)
if err := t.ExecuteTemplate(w, "layout", data); err != nil {
slog.Error("execute template", "name", name, "err", err)
}
}
// HTTPError writes a plain-text HTTP error.
func HTTPError(w http.ResponseWriter, status int) {
http.Error(w, http.StatusText(status), status)
}
// BaseData builds the common template map (User, CSRFToken, Flash).
func BaseData(a *auth.Manager, r *http.Request) map[string]any {
return map[string]any{
"User": auth.UserFromCtx(r.Context()),
"CSRFToken": a.CSRFToken(r),
"Flash": a.PopFlash(r),
}
}