package dynamicrouting

import (
	"strings"
	"testing"
)

func TestBGPConfigGeneration(t *testing.T) {
	m := &Manager{}
	m.config.BGPInstance = BGPInstance{
		Enabled:            true,
		AS:                 65001,
		RouterID:           "192.168.131.56",
		RedistributeStatic: true,
	}
	m.config.BGPNetworks = []BGPNetwork{
		{
			ID:       "net-1",
			Network:  "192.168.100.0/24",
			Disabled: false,
		},
	}
	m.config.BGPPeers = []BGPPeer{
		{
			ID:             "peer-1",
			Name:           "TestPeer",
			RemoteAddress:  "192.168.129.225",
			RemoteAS:       65555,
			Passive:        true,
			NexthopSelf:    true,
			RedistStatic:   true,
			OutputNetworks: []string{"192.168.200.0/24"},
		},
	}

	// Mock bird and birdc
	dir := t.TempDir()
	t.Setenv("PATH", dir+":"+dir)

	// Test configuration generation
	sb := &strings.Builder{}
	// Test the export filter logic directly
	exportSources := []string{`source = RTS_BGP`}
	if m.config.BGPPeers[0].RedistStatic || m.config.BGPInstance.RedistributeStatic {
		exportSources = append(exportSources, `source ~ [ RTS_STATIC, RTS_INHERIT ]`)
	}
	exportRule := strings.Join(exportSources, ") || (")
	if !strings.Contains(exportRule, "RTS_INHERIT") {
		t.Fatalf("Expected exportRule to contain RTS_INHERIT for kernel static routes, got %s", exportRule)
	}

	_ = sb
}