package main

// The module's shape (novox/hq to-be 42 Phase 1, research 027): the package, its base configuration
// whole, and its timer — and the base configuration proven by logrotate's own dry run where logrotate
// is installed, because a base configuration that does not parse stops every rotation on the machine.

import (
	"os"
	"os/exec"
	"path/filepath"
	"strings"
	"testing"
)

func TestItDeclaresThePackageTheBaseAndTheTimer(t *testing.T) {
	m := manifest(t)
	if p := m.resource(t, "package"); p["package"] != "logrotate" {
		t.Fatalf("%v", p)
	}
	c := m.resource(t, "config")
	if c["path"] != BaseConf || c["into"] != nil || !strings.HasPrefix(c["content"].(string), "# The mesh's (module logrotate") {
		t.Fatalf("%v", c)
	}
	if !strings.Contains(c["content"].(string), "\ninclude "+RulesDir+"\n") {
		t.Fatal("the base must include the packages' rules, or nothing of theirs rotates")
	}
	if strings.Contains(c["content"].(string), "olddir") {
		t.Fatal("olddir flattens logs of different directories into one, where two of one name collide")
	}
	timer := m.resource(t, "timer")
	if timer["unit"] != "logrotate.timer" || timer["state"] != "running" || timer["boot"] != "enabled" {
		t.Fatalf("%v", timer)
	}
}

func TestTheBaseParses(t *testing.T) {
	logrotate, err := exec.LookPath("logrotate")
	if err != nil {
		t.Skip("logrotate is not installed here; the base configuration is not dry-run")
	}
	dir := t.TempDir()
	content := strings.ReplaceAll(manifest(t).resource(t, "config")["content"].(string), "include "+RulesDir, "include "+filepath.Join(dir, "d"))
	if err := os.Mkdir(filepath.Join(dir, "d"), 0o755); err != nil {
		t.Fatal(err)
	}
	conf := filepath.Join(dir, "logrotate.conf")
	if err := os.WriteFile(conf, []byte(content), 0o644); err != nil {
		t.Fatal(err)
	}
	out, err := exec.Command(logrotate, "-d", "-s", filepath.Join(dir, "state"), conf).CombinedOutput()
	if err != nil || strings.Contains(string(out), "error:") {
		t.Fatalf("logrotate -d: %v\n%s", err, out)
	}
}