package config

import (
	"os"
	"path/filepath"
	"testing"
	"time"
)

func TestExampleParses(t *testing.T) {
	path := filepath.Join(t.TempDir(), "jarl.yaml")
	os.WriteFile(path, []byte(Example), 0o644)
	c, err := Load(path, false)
	if err != nil {
		t.Fatal(err)
	}
	d := Default()
	if c.BIND.ZoneDir != d.BIND.ZoneDir || time.Duration(c.Session.IdleTimeout) != 2*time.Hour || c.Listen[0] != "127.0.0.1:8053" {
		t.Errorf("example differs from defaults: %+v", c)
	}
}

func TestLoad(t *testing.T) {
	dir := t.TempDir()
	path := filepath.Join(dir, "jarl.yaml")
	os.WriteFile(path, []byte("listen: [\"0.0.0.0:8443\"]\ntls: {cert_file: /a, key_file: /b}\ntrusted_proxies: [10.0.0.1, 192.168.0.0/16]\nsession: {lifetime: 1d}\n"), 0o644)
	c, err := Load(path, false)
	if err != nil {
		t.Fatal(err)
	}
	if time.Duration(c.Session.Lifetime) != 24*time.Hour || len(c.Proxies()) != 2 || c.BIND.FileGroup != "bind" {
		t.Errorf("config = %+v", c)
	}
	os.WriteFile(path, []byte("lisen: []\n"), 0o644)
	if _, err := Load(path, false); err == nil {
		t.Error("unknown field accepted")
	}
	os.WriteFile(path, []byte("tls: {cert_file: /a}\n"), 0o644)
	if _, err := Load(path, false); err == nil {
		t.Error("half TLS config accepted")
	}
	if _, err := Load(filepath.Join(dir, "missing.yaml"), true); err != nil {
		t.Errorf("missing file with allowMissing: %v", err)
	}
}