package swampfile

import (
	"github.com/matryer/is"
	"testing"
	"time"
)

func RepositoryContract(fac func() Repository, t *testing.T) {
	basicFileOperationContract(fac, t)
}

func basicFileOperationContract(fac func() Repository, t *testing.T) {
	is := is.New(t)
	repo := fac()

	not_file, err := repo.Open("doesnot", "exist")

	is.Equal(err, ErrNotExists)
	is.Equal(not_file, nil)

	new_file, err := repo.Create("newfile.new", "ua1")

	is.NoErr(err)
	is.True(new_file != nil)

	var testdata = "testingdata"

	new_file.Write([]byte(testdata))
	new_file.Close()

	reopened_file, err := repo.Open("newfile.new", "ua1")

	is.NoErr(err)
	is.True(reopened_file != nil)
	is.Equal(reopened_file.Size(), int64(len(testdata)))

	readback := make([]byte, 128)

	size, err := reopened_file.Read(readback)

	is.Equal(string(readback[0:size]), testdata)

	reopened_file.Close()

	repo.Delete("newfile.new", "ua1")

	deleted_file, err := repo.Open("newfile.new", "ua1")

	is.Equal(err, ErrNotExists)
	is.True(deleted_file == nil)

	// DeleteOlderThan

	expiring_file, err := repo.Create("deep/dir/expiring.new", "ua1")
	is.NoErr(err)

	expiring_file.Write([]byte(testdata))
	expiring_file.Close()

	_, err = repo.DeleteOlderThan("ua1", time.Now().Add(time.Hour))
	is.NoErr(err)

	expired_file, err := repo.Open("deep/dir/expiring.new", "ua1")
	is.Equal(err, ErrNotExists)
	is.True(expired_file == nil)
}