package main

import (
	"fmt"
	"local/dynamodb/server/config"
	"local/dynamodb/server/serve"
	"net/http/httptest"
	"os"
	"strings"
	"testing"
)

func TestAll(t *testing.T) {
	validKey := "key"
	validValue := "value"

	addresses := []string{}
	for i := 0; i < 10; i++ {
		s := newServer(t)
		addresses = append(addresses, "http://localhost"+s.Port)
		go s.Run()
	}

	client, err := New(1, 1, addresses...)
	if err != nil {
		t.Fatalf("cannot make client: %v", err)
	}

	for i := 0; i < 5; i++ {
		key := fmt.Sprintf("%s-%d", validKey, i)
		value := validValue + string([]byte{byte(i) + 'a'})
		if err := client.Set(key, []byte(value)); err != nil {
			t.Fatalf("cannot set with client: %v", err)
		}

		if v, err := client.Get(key); err != nil {
			t.Fatalf("cannot get with client: %v", err)
		} else if string(v) != value {
			t.Fatalf("wrong get with client: got %q, want %q", v, value)
		}
	}
}

func newServer(t *testing.T) *serve.Server {
	os.Setenv("DB", "MAP")
	os.Setenv("PORT", getPort())
	if err := config.New(); err != nil {
		t.Fatal(err)
	}
	s := serve.New()
	if err := s.Routes(); err != nil {
		t.Fatal(err)
	}
	return s
}

func getPort() string {
	s := httptest.NewServer(nil)
	s.Close()
	return s.URL[strings.LastIndex(s.URL, ":"):]
}