package client

import (
	"crypto/x509"
	"testing"
	"time"
)

func TestGetHTTPClient(t *testing.T) {
	if secureHTTPClient != nil {
		t.Error("secureHTTPClient should've been nil since it hasn't been called a single time yet")
	}
	if insecureHTTPClient != nil {
		t.Error("insecureHTTPClient should've been nil since it hasn't been called a single time yet")
	}
	_ = GetHTTPClient(false)
	if secureHTTPClient == nil {
		t.Error("secureHTTPClient shouldn't have been nil, since it has been called once")
	}
	if insecureHTTPClient != nil {
		t.Error("insecureHTTPClient should've been nil since it hasn't been called a single time yet")
	}
	_ = GetHTTPClient(true)
	if secureHTTPClient == nil {
		t.Error("secureHTTPClient shouldn't have been nil, since it has been called once")
	}
	if insecureHTTPClient == nil {
		t.Error("insecureHTTPClient shouldn't have been nil, since it has been called once")
	}
}

func TestPing(t *testing.T) {
	pingTimeout = 500 * time.Millisecond
	if success, rtt := Ping("127.0.0.1"); !success {
		t.Error("expected true")
		if rtt == 0 {
			t.Error("Round-trip time returned on success should've higher than 0")
		}
	}
	if success, rtt := Ping("256.256.256.256"); success {
		t.Error("expected false, because the IP is invalid")
		if rtt != 0 {
			t.Error("Round-trip time returned on failure should've been 0")
		}
	}
	if success, rtt := Ping("192.168.152.153"); success {
		t.Error("expected false, because the IP is valid but the host should be unreachable")
		if rtt != 0 {
			t.Error("Round-trip time returned on failure should've been 0")
		}
	}
}

func TestCanPerformStartTls(t *testing.T) {
	type args struct {
		address  string
		insecure bool
	}
	tests := []struct {
		name            string
		args            args
		wantConnected   bool
		wantCertificate *x509.Certificate
		wantErr         bool
	}{
		{
			name: "invalid address",
			args: args{
				address: "test",
			},
			wantConnected:   false,
			wantCertificate: nil,
			wantErr:         true,
		},
		{
			name: "error dial",
			args: args{
				address: "test:1234",
			},
			wantConnected:   false,
			wantCertificate: nil,
			wantErr:         true,
		},
		{
			name: "valid starttls",
			args: args{
				address: "smtp.gmail.com:587",
			},
			wantConnected: true,
			wantErr:       false,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			gotConnected, _, err := CanPerformStartTls(tt.args.address, tt.args.insecure)
			if (err != nil) != tt.wantErr {
				t.Errorf("CanPerformStartTls() error = %v, wantErr %v", err, tt.wantErr)
				return
			}
			if gotConnected != tt.wantConnected {
				t.Errorf("CanPerformStartTls() gotConnected = %v, want %v", gotConnected, tt.wantConnected)
			}
		})
	}
}