package client_test

import (
	"context"
	"io/ioutil"
	"testing"

	"git.kapelle.org/niklas/s3share/internal/client"
	"git.kapelle.org/niklas/s3share/internal/db"
	"git.kapelle.org/niklas/s3share/internal/s3"
	"git.kapelle.org/niklas/s3share/internal/types"
	"github.com/stretchr/testify/assert"
)

func setup(t *testing.T) (*client.Client, context.Context, *assert.Assertions) {

	mockDb := db.NewMock()
	mockS3 := s3.NewMockS3()

	service := client.NewClient(mockDb, mockS3)
	ctx := context.Background()
	assert := assert.New(t)

	return service, ctx, assert
}

func TestCreateShare(t *testing.T) {
	service, ctx, assert := setup(t)

	share, err := service.CreateShare(ctx, "test.txt")
	assert.NoError(err)
	assert.NotNil(share)
	assert.NotEmpty(share.Slug)
	assert.Equal("test.txt", share.Key)
}

func TestCreateShareInvalidKey(t *testing.T) {
	service, ctx, assert := setup(t)

	_, err := service.CreateShare(ctx, "not_existing.txt")
	assert.Error(err)
}

func TestGetShare(t *testing.T) {
	service, ctx, assert := setup(t)

	createdShare, err := service.CreateShare(ctx, "test.txt")

	share, err := service.GetShare(ctx, createdShare.Slug)
	assert.NoError(err)
	assert.NotNil(share)
	assert.Equal(createdShare.Slug, share.Slug)
	assert.Equal("test.txt", share.Key)
}

func TestGetShareNotFound(t *testing.T) {
	service, ctx, assert := setup(t)

	share, err := service.GetShare(ctx, "123456")
	assert.NoError(err)
	assert.Nil(share)
}

func TestGetObjFromShare(t *testing.T) {
	service, ctx, assert := setup(t)

	createdShare, _ := service.CreateShare(ctx, "test.txt")

	reader, err := service.GetObjectFromShare(ctx, createdShare)
	assert.NoError(err)
	assert.NotNil(reader)

	content, err := ioutil.ReadAll(reader)
	assert.NoError(err)
	assert.Equal("test.txt", string(content))
}

func TestGetObjFromShareNotFound(t *testing.T) {
	service, ctx, assert := setup(t)

	_, err := service.GetObjectFromShare(ctx, &types.Share{Slug: "123456"})
	assert.Error(err)
}

func TestDeleteShare(t *testing.T) {
	service, ctx, assert := setup(t)

	createdShare, _ := service.CreateShare(ctx, "test.txt")

	err := service.DeleteShare(ctx, createdShare.Slug)
	assert.NoError(err)

	share, err := service.GetShare(ctx, createdShare.Slug)
	assert.NoError(err)
	assert.Nil(share)
}

func TestDeleteShareNotFound(t *testing.T) {
	service, ctx, assert := setup(t)

	err := service.DeleteShare(ctx, "123456")
	assert.Error(err)
}

func TestGetMetadata(t *testing.T) {
	service, ctx, assert := setup(t)

	metadata, err := service.GetObjectMetadata(ctx, "test.txt")
	assert.NoError(err)
	assert.NotNil(metadata)
	assert.Equal("test.txt", metadata.Filename)
	assert.Equal("text/plain", metadata.ContentType)
	assert.Equal(int64(8), metadata.Size)
}

func TestGetMetadataNotFound(t *testing.T) {
	service, ctx, assert := setup(t)

	metadata, err := service.GetObjectMetadata(ctx, "not_existing.txt")
	assert.NoError(err)
	assert.Nil(metadata)
}

func TestGetAllShares(t *testing.T) {
	service, ctx, assert := setup(t)

	share, err := service.CreateShare(ctx, "test.txt")
	assert.NoError(err)

	shares, err := service.GetAllShares(ctx)
	assert.NoError(err)
	assert.Len(shares, 1)

	assert.Equal(share.Slug, shares[0].Slug)
	assert.Equal(share.Key, shares[0].Key)

	_, err = service.CreateShare(ctx, "dir/test")
	assert.NoError(err)

	shares, err = service.GetAllShares(ctx)
	assert.NoError(err)
	assert.Len(shares, 2)
}