package main

import (
	"bytes"
	"os"
	"path/filepath"
	"strings"
	"testing"

	"github.com/novox/mesh-controller/internal/catalogue"
)

// ADR 0326 §3 is judged where a definition is written (novox/hq issue 574): `module check`, and
// namesNoInstallation, which `module add`, a build taken in and the merge gate's registration run.
func TestWhereADefinitionIsWrittenADeclaringModuleNamesItsFilesKeys(t *testing.T) {
	const silent = `{"module":"mail-client","version":"1",
		"settings":{"prefs":{"kind":"preference","default":"// none","why":"its own defaults until a machine names one"}},
		"resources":[
			{"id":"user-js","type":"file","path":"/var/lib/mail-client/user.js","mode":"0644","content":"${setting:prefs}\n"},
			{"id":"accounts","type":"file","path":"/var/lib/mail-client/accounts.json","mode":"0600","merge":"json",
			 "content":"{}\n"%s}]}`
	dir := t.TempDir()
	bad := filepath.Join(dir, "bad.json")
	good := filepath.Join(dir, "good.json")
	os.WriteFile(bad, []byte(strings.Replace(silent, "%s", "", 1)), 0o600)
	os.WriteFile(good, []byte(strings.Replace(silent, "%s", `,"takes-settings":["accounts"]`, 1)), 0o600)

	var out bytes.Buffer
	if err := moduleCheck([]string{bad}, &out); err == nil ||
		!strings.Contains(out.String(), "mergeable accounts names no takes-settings") {
		t.Fatalf("module check passed a declaring module's silent mergeable file: %v\n%s", err, out.String())
	}
	out.Reset()
	if err := moduleCheck([]string{good}, &out); err != nil {
		t.Fatalf("the file naming its keys was refused: %v\n%s", err, out.String())
	}

	raw, _ := os.ReadFile(bad)
	m, err := catalogue.ParseManifest(raw)
	if err != nil {
		t.Fatalf("reading it is not where it is judged: %v", err)
	}
	if err := namesNoInstallation(m); err == nil || !strings.Contains(err.Error(), "names no takes-settings") {
		t.Fatalf("registration passed it: %v", err)
	}
}