package main

import (
	"path/filepath"
	"testing"
)

func TestLoadOrCreateConfig(t *testing.T) {
	path := filepath.Join(t.TempDir(), configFileName)
	cfg, created, err := loadOrCreateConfig(path)
	if err != nil {
		t.Fatal(err)
	}
	if !created {
		t.Fatal("expected configuration to be created")
	}
	if cfg.IntervalMinutes != 30 || cfg.MaxCacheCount != 10 || cfg.WallpaperStyle != "keep" {
		t.Fatalf("unexpected defaults: %+v", cfg)
	}

	loaded, created, err := loadOrCreateConfig(path)
	if err != nil {
		t.Fatal(err)
	}
	if created || loaded != cfg {
		t.Fatalf("unexpected loaded config: %+v", loaded)
	}
}

func TestConfigValidation(t *testing.T) {
	cfg := defaultConfig()
	if err := cfg.validate(true); err == nil {
		t.Fatal("expected empty API URL to fail when required")
	}
	cfg.APIURL = "ftp://example.com/image.jpg"
	if err := cfg.validate(false); err == nil {
		t.Fatal("expected non-http URL to fail")
	}
	cfg.APIURL = "https://example.com/random"
	if err := cfg.validate(true); err != nil {
		t.Fatal(err)
	}
}