package webserver

import (
	"fmt"
	"testing"
	"time"

	"go.uber.org/zap/zaptest"

	"github.com/strimertul/strimertul/database"
)

func TestNewServer(t *testing.T) {
	logger := zaptest.NewLogger(t)
	client, _ := database.CreateInMemoryLocalClient(t)
	defer database.CleanupLocalClient(client)

	_, err := NewServer(client, logger, DefaultServerFactory)
	if err != nil {
		t.Fatal(err)
	}
}

func TestNewServerWithTestFactory(t *testing.T) {
	logger := zaptest.NewLogger(t)
	client, _ := database.CreateInMemoryLocalClient(t)
	defer database.CleanupLocalClient(client)

	testServer := NewTestServer()
	_, err := NewServer(client, logger, testServer.Factory())
	if err != nil {
		t.Fatal(err)
	}
}

func TestListen(t *testing.T) {
	logger := zaptest.NewLogger(t)
	client, _ := database.CreateInMemoryLocalClient(t)
	defer database.CleanupLocalClient(client)

	// Create a test server
	testServer := NewTestServer()
	server, err := NewServer(client, logger, testServer.Factory())
	if err != nil {
		t.Fatal(err)
	}

	// Start the server
	finished := make(chan struct{})
	go func() {
		err := server.Listen()
		if err != nil {
			t.Error(err)
		}
		finished <- struct{}{}
	}()

	// Wait for the server to start up so we can get the client
	testServer.Wait()

	// Make a request to the server
	httpClient := testServer.Client()
	resp, err := httpClient.Get(fmt.Sprintf("%s/health", testServer.URL()))
	if err != nil {
		t.Fatal(err)
	}
	if resp.StatusCode != 200 {
		t.Fatalf("Expected 200, got %d", resp.StatusCode)
	}

	// Close the server
	err = server.Close()
	if err != nil {
		t.Fatal(err)
	}

	// Make sure the related goroutines have terminated
	select {
	case <-finished:
	case <-time.After(time.Second * 2):
		t.Fatal("Server did not shut down in time")
	}
}

func TestGeneratePassword(t *testing.T) {
	// Generate a bunch of passwords and make sure they are different and sufficiently long
	passwords := make(map[string]bool)
	for i := 0; i < 100; i++ {
		password := generatePassword()
		if len(password) < 8 {
			t.Fatalf("Password '%s' is empty or too short", password)
		}
		if passwords[password] {
			t.Fatal("Duplicate password")
		}
		passwords[password] = true
	}
}