// Command english writes every English string the design system's
// pages can say, keyed by the id its translation is filed under, as
// one JSON object sorted by id. hack/seed/run-translations.sh runs it
// and hands the file to the translation exporter, which matches each
// string against Rastrillo's tables.
//
//	go run ./hack/seed/english -out english.json
package main

import (
	"bytes"
	"encoding/json"
	"flag"
	"fmt"
	"os"

	"amadan.net/rastrillo/fiesta"
	"amadan.net/rastrillo/fiesta/internal/gallery"
)

func main() {
	out := flag.String("out", "", "the file to write")
	flag.Parse()
	if *out == "" || flag.NArg() != 0 {
		fmt.Fprintln(os.Stderr, "usage: english -out FILE")
		os.Exit(2)
	}
	if err := write(*out); err != nil {
		fmt.Fprintln(os.Stderr, "english:", err)
		os.Exit(1)
	}
}

// write dumps gallery.EnglishStrings to path. The strings are written
// as they are, with no HTML escaping, since the exporter matches them
// byte for byte.
func write(path string) error {
	strs, err := gallery.EnglishStrings(fiesta.FS())
	if err != nil {
		return err
	}
	var b bytes.Buffer
	enc := json.NewEncoder(&b)
	enc.SetEscapeHTML(false)
	enc.SetIndent("", "  ")
	if err := enc.Encode(strs); err != nil {
		return err
	}
	return os.WriteFile(path, b.Bytes(), 0o644)
}