package config

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

func TestLoadValid(t *testing.T) {
	content := `
[server]
listen_addr = ":8443"
tls_cert = "cert.pem"
tls_key = "key.pem"

[database]
path = "test.db"

[mcias]
server_url = "https://mcias.example.com"
`
	dir := t.TempDir()
	path := filepath.Join(dir, "test.toml")
	_ = os.WriteFile(path, []byte(content), 0600)

	cfg, err := Load(path)
	if err != nil {
		t.Fatalf("Load: %v", err)
	}
	if cfg.Server.ListenAddr != ":8443" {
		t.Errorf("ListenAddr: got %q", cfg.Server.ListenAddr)
	}
	if cfg.Seal.Argon2Time != 3 {
		t.Errorf("Argon2Time default: got %d, want 3", cfg.Seal.Argon2Time)
	}
	if cfg.Seal.Argon2Memory != 128*1024 {
		t.Errorf("Argon2Memory default: got %d", cfg.Seal.Argon2Memory)
	}
	if cfg.Log.Level != "info" {
		t.Errorf("Log.Level default: got %q", cfg.Log.Level)
	}
}

func TestLoadMissingRequired(t *testing.T) {
	content := `
[server]
listen_addr = ":8443"
`
	dir := t.TempDir()
	path := filepath.Join(dir, "test.toml")
	_ = os.WriteFile(path, []byte(content), 0600)

	_, err := Load(path)
	if err == nil {
		t.Fatal("expected error for missing required fields")
	}
}

func TestLoadMissingFile(t *testing.T) {
	_, err := Load("/nonexistent/path.toml")
	if err == nil {
		t.Fatal("expected error for missing file")
	}
}