package config

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

func TestLoadControlAPIScanDefaults(t *testing.T) {
	path := filepath.Join(t.TempDir(), "c.yaml")
	if err := os.WriteFile(path, []byte("server:\n  listen_addr: \":8080\"\n"), 0o600); err != nil {
		t.Fatal(err)
	}
	c, err := LoadControlAPI(path)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if c.OpenStack.ListPageSize != 200 || c.OpenStack.RequestTimeoutSeconds != 60 ||
		c.OpenStack.ListPageRetries != 5 || c.Orchestrator.FIPScanTimeoutSeconds != 1800 {
		t.Fatalf("unexpected defaults: openstack=%+v orchestrator=%+v", c.OpenStack, c.Orchestrator)
	}
}

func TestLoadControlAPIScanOverrides(t *testing.T) {
	path := filepath.Join(t.TempDir(), "c.yaml")
	yaml := "openstack:\n  list_page_size: 50\n  request_timeout_seconds: 10\n  list_page_retries: -1\n" +
		"orchestrator:\n  fip_scan_timeout_seconds: 99\n"
	if err := os.WriteFile(path, []byte(yaml), 0o600); err != nil {
		t.Fatal(err)
	}
	c, err := LoadControlAPI(path)
	if err != nil {
		t.Fatalf("load: %v", err)
	}
	if c.OpenStack.ListPageSize != 50 || c.OpenStack.RequestTimeoutSeconds != 10 ||
		c.OpenStack.ListPageRetries != -1 || c.Orchestrator.FIPScanTimeoutSeconds != 99 {
		t.Fatalf("overrides lost: openstack=%+v orchestrator=%+v", c.OpenStack, c.Orchestrator)
	}
}

// The shipped example must load and carry the scan settings, and the rxprod
// copy must stay byte-identical to it.
func TestControlAPIExampleConfigs(t *testing.T) {
	c, err := LoadControlAPI("../../configs/control-api.example.yaml")
	if err != nil {
		t.Fatalf("load example: %v", err)
	}
	if c.OpenStack.ListPageSize != 200 || c.Orchestrator.FIPScanTimeoutSeconds != 1800 {
		t.Fatalf("example scan settings: %+v %+v", c.OpenStack, c.Orchestrator)
	}
	a, err := os.ReadFile("../../configs/control-api.example.yaml")
	if err != nil {
		t.Fatal(err)
	}
	b, err := os.ReadFile("../../rxprod-compose/sources/control-api.example.yaml")
	if err != nil {
		t.Fatal(err)
	}
	if !bytes.Equal(a, b) {
		t.Fatalf("rxprod-compose/sources/control-api.example.yaml differs from configs/control-api.example.yaml")
	}
	if _, err := LoadControlAPI("../../deploy/docker/control-api/control-api.docker.example.yaml"); err != nil {
		t.Fatalf("load docker example: %v", err)
	}
}