package kvm2

import (
	"errors"
	"strings"
	"testing"

	"gitea.home.hrajfrisbee.cz/kacerr/egress-proxies-operator/internal/provider"
)

func TestFormatProviderID_roundTrip(t *testing.T) {
	t.Parallel()
	id := formatProviderID("beelink", "proxy-abc123def456ghij")
	if id != "hosts/beelink/domains/proxy-abc123def456ghij" {
		t.Fatalf("formatProviderID() = %q", id)
	}
	host, name, err := parseProviderID(id)
	if err != nil || host != "beelink" || name != "proxy-abc123def456ghij" {
		t.Errorf("parseProviderID(%q) = %q, %q, %v; want beelink, proxy-abc123def456ghij, nil", id, host, name, err)
	}
}

func TestParseProviderID_malformed(t *testing.T) {
	t.Parallel()
	tests := []struct {
		name string
		id   string
	}{
		{name: "empty", id: ""},
		{name: "two segments", id: "hosts/h"},
		{name: "three segments", id: "hosts/h/domains"},
		{name: "empty host", id: "hosts//domains/n"},
		{name: "empty name", id: "hosts/h/domains/"},
		{name: "wrong first literal", id: "nodes/h/domains/n"},
		{name: "wrong third literal", id: "hosts/h/vms/n"},
		{name: "extra segment", id: "hosts/h/domains/n/extra"},
		{name: "slash in name", id: "hosts/h/domains/a/b"},
	}
	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()
			host, name, err := parseProviderID(tc.id)
			if err == nil {
				t.Fatalf("parseProviderID(%q) = %q, %q, nil; want error", tc.id, host, name)
			}
			if !errors.Is(err, provider.ErrPermanent) {
				t.Errorf("parseProviderID(%q) error = %v, want ErrPermanent", tc.id, err)
			}
			if !strings.Contains(err.Error(), tc.id) {
				t.Errorf("parseProviderID(%q) error = %q, want it to name the ID", tc.id, err)
			}
		})
	}
}