package main

import (
	"io/ioutil"
	"os"
	"testing"
)

func createTempFile(t testing.TB, initialDB string) (*os.File, func()) {
	t.Helper()

	tempfile, err := ioutil.TempFile("", "db")

	if err != nil {
		t.Fatalf("could not create temp file %v", err)
	}

	tempfile.Write([]byte(initialDB))

	removeFile := func() {
		tempfile.Close()
		os.Remove(tempfile.Name())
	}

	return tempfile, removeFile
}

func TestFileSystemStore(t *testing.T) {
	t.Run("get username", func(t *testing.T) {
		database, cleanDatabase := createTempFile(t, `[
			{"Username": "testUser", "Key": "12345", "IpAddress": "123.123.123.123.50120", "IsAdmin": true},
			{"Username": "jimmy", "Key": "67890", "IpAddress": "12.12.12.12:50121", "IsAdmin": false}]`)
		defer cleanDatabase()

		store, err := NewFileSystemUserStore(database)

		//userList := store.userList
		//user := userList.Find("testUser")
		//user.UpdateAdminStatus(true)

		AssertNoError(t, err)

		got := store.GetUsers()

		want := []User{
			{Username: "testUser", Key: "12345", IpAddress: "123.123.123.123.50120", IsAdmin: true},
			{Username: "jimmy", Key: "67890", IpAddress: "12.12.12.12:50121", IsAdmin: false},
		}

		AssertUsers(t, got, want)

		//read again
		got = store.GetUsers()
		AssertUsers(t, got, want)
	})
}

func TestCreateUser(t *testing.T) {
	t.Run("get username", func(t *testing.T) {
		database, cleanDatabase := createTempFile(t, `[
			{"Username": "testUser", "Key": "12345", "IpAddress": "123.123.123.123.50120", "IsAdmin": true},
			{"Username": "jimmy", "Key": "67890", "IpAddress": "12.12.12.12:50121", "IsAdmin": false}]`)
		defer cleanDatabase()

		store, err := NewFileSystemUserStore(database)

		AssertNoError(t, err)

		want := User{
			Username:  "newUser",
			Key:       "12345",
			IpAddress: "1.1.1.1:1111",
			IsAdmin:   false,
		}

		store.AddUserToUserList(want)

		got := store.GetUsers()
		AssertUserExists(t, got, want)
	})
}

func TestDeleteUser(t *testing.T) {
	t.Run("get username", func(t *testing.T) {
		database, cleanDatabase := createTempFile(t, `[
			{"Username": "testUser", "Key": "12345", "IpAddress": "123.123.123.123.50120", "IsAdmin": true},
			{"Username": "jimmy", "Key": "67890", "IpAddress": "12.12.12.12:50121", "IsAdmin": false}]`)
		defer cleanDatabase()

		store, err := NewFileSystemUserStore(database)

		AssertNoError(t, err)

		want := User{
			Username:  "testUser",
			Key:       "12345",
			IpAddress: "123.123.123.123:50120",
			IsAdmin:   false,
		}

		want = *store.userList.Find("testUser")
		store.DeleteUserFromUserList(want)

		got := store.GetUsers()
		AssertUserNotExists(t, got, want)

		want = *store.userList.Find("jimmy")
		AssertUserExists(t, got, want)
	})
}

//todo move this to user_test.go and user.go
func TestUpdateUserStore(t *testing.T) {
	t.Run("get username", func(t *testing.T) {
		database, cleanDatabase := createTempFile(t, `[
			{"Username": "testUser", "Key": "12345", "IpAddress": "123.123.123.123.50120", "IsAdmin": true},
			{"Username": "jimmy", "Key": "67890", "IpAddress": "12.12.12.12:50121", "IsAdmin": false}]`)
		defer cleanDatabase()

		store, err := NewFileSystemUserStore(database)

		AssertNoError(t, err)

		userToUpdate := *store.userList.Find("testUser")

		want := User{
			Username:  "testUser2",
			Key:       "123456",
			IpAddress: "124.124.124.124:50120",
			IsAdmin:   false,
		}

		want = *store.userList.Find("testUser")
		store.UpdateUserFromUserList(userToUpdate, want)

		got := store.GetUsers()
		AssertUserExists(t, got, want)
	})
}