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package backend
import (
"log/slog"
"maps"
"net/http"
"slices"
"strconv"
"time"
"github.com/go-chi/chi/v5"
)
const maxLogsPerPage = 5
var sortedLogs []*logData
type homeData struct {
*data
Logs []*logData
PagesNumber int
CurrentPage int
}
func (h *homeData) SetData(d *data) {
h.data = d
}
func HandleHome(r *chi.Mux) {
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
rawPage := r.URL.Query().Get("page")
page := 1
if rawPage != "" {
var err error
page, err = strconv.Atoi(rawPage)
if err != nil || page < 1 {
slog.Warn("invalid page number", "rawPage", rawPage)
w.WriteHeader(http.StatusBadRequest)
return
}
}
d := new(homeData)
d.data = new(data)
if sortedLogs == nil {
sortLogs()
}
d.CurrentPage = page
d.PagesNumber = len(sortedLogs)/maxLogsPerPage + 1
if d.PagesNumber < page {
http.NotFoundHandler().ServeHTTP(w, r)
return
}
d.Logs = sortedLogs[(page-1)*maxLogsPerPage : min(page*maxLogsPerPage, len(sortedLogs))]
d.handleGeneric(w, r, "home", d)
})
}
func sortLogs() {
sortedLogs = slices.SortedFunc(maps.Values(logs), func(l *logData, l2 *logData) int {
lt := l.pubDate.AsTime(time.UTC)
l2t := l2.pubDate.AsTime(time.UTC)
// we want it reversed
if lt.Before(l2t) {
return 1
} else if lt.After(l2t) {
return -1
}
return 0
})
}
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