package calls

import (
	_ "embed"
	"encoding/json"
	"net/http"

	"amadan.net/oficina/estilo.git/credits"
)

//go:embed credits/notices.json
var creditNotices []byte

type creditInventory struct {
	Components     []credits.Component `json:"components"`
	MissingNotices []string            `json:"missing_notices"`
}

var embeddedCredits = func() creditInventory {
	var inventory creditInventory
	if err := json.Unmarshal(creditNotices, &inventory); err != nil {
		panic(err)
	}
	return inventory
}()

func (a *app) credits(w http.ResponseWriter, r *http.Request) {

	w.Header().Set("Content-Type", "text/html; charset=utf-8")
	w.Header().Set("Cache-Control", "no-store")
	// strict-origin, not no-referrer: the page shows the account menu, and
	// a chained sign-out from it is admitted by id.* on the Referer's
	// origin (spec §9.5). The credit links carry their own no-referrer.
	w.Header().Set("Referrer-Policy", "strict-origin")
	render(w, "credits", a.page(r, titled("Open source"), map[string]any{"Data": credits.PageData{Title: "Open source", MissingNoticeLabel: "No notice file is included in this release.", Components: embeddedCredits.Components}}))
}

func serveCreditsCSS(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "text/css; charset=utf-8")
	w.Header().Set("Cache-Control", "no-cache")
	w.Write(credits.CSS())
}