// Copyright 2022 Cloudbase Solutions SRL
//
//    Licensed under the Apache License, Version 2.0 (the "License"); you may
//    not use this file except in compliance with the License. You may obtain
//    a copy of the License at
//
//         http://www.apache.org/licenses/LICENSE-2.0
//
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
//    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
//    License for the specific language governing permissions and limitations
//    under the License.

package sql

import (
	"context"
	"fmt"
	dbCommon "garm/database/common"
	garmTesting "garm/internal/testing"
	"garm/params"
	"sort"
	"testing"

	"github.com/stretchr/testify/suite"
)

type PoolsTestFixtures struct {
	Org   params.Organization
	Pools []params.Pool
}

type PoolsTestSuite struct {
	suite.Suite
	Store    dbCommon.Store
	Fixtures *PoolsTestFixtures
}

func (s *PoolsTestSuite) equalPoolsByID(expected, actual []params.Pool) {
	s.Require().Equal(len(expected), len(actual))

	sort.Slice(expected, func(i, j int) bool { return expected[i].ID > expected[j].ID })
	sort.Slice(actual, func(i, j int) bool { return actual[i].ID > actual[j].ID })

	for i := 0; i < len(expected); i++ {
		s.Require().Equal(expected[i].ID, actual[i].ID)
	}
}

func (s *PoolsTestSuite) SetupTest() {
	// create testing sqlite database
	db, err := NewSQLDatabase(context.Background(), garmTesting.GetTestSqliteDBConfig(s.T()))
	if err != nil {
		s.FailNow(fmt.Sprintf("failed to create db connection: %s", err))
	}
	s.Store = db

	// create an organization for testing purposes
	org, err := s.Store.CreateOrganization(context.Background(), "test-org", "test-creds", "test-webhookSecret")
	if err != nil {
		s.FailNow(fmt.Sprintf("failed to create org: %s", err))
	}

	// create some pool objects in the database, for testing purposes
	orgPools := []params.Pool{}
	for i := 1; i <= 3; i++ {
		pool, err := db.CreateOrganizationPool(
			context.Background(),
			org.ID,
			params.CreatePoolParams{
				ProviderName:   "test-provider",
				MaxRunners:     4,
				MinIdleRunners: 2,
				Image:          fmt.Sprintf("test-image-%d", i),
				Flavor:         "test-flavor",
				OSType:         "linux",
				Tags:           []string{"self-hosted", "amd64", "linux"},
			},
		)
		if err != nil {
			s.FailNow(fmt.Sprintf("cannot create org pool: %v", err))
		}
		orgPools = append(orgPools, pool)
	}

	// setup test fixtures
	fixtures := &PoolsTestFixtures{
		Org:   org,
		Pools: orgPools,
	}
	s.Fixtures = fixtures
}

func (s *PoolsTestSuite) TestListAllPools() {
	pools, err := s.Store.ListAllPools(context.Background())

	s.Require().Nil(err)
	s.equalPoolsByID(s.Fixtures.Pools, pools)
}

func (s *PoolsTestSuite) TestGetPoolByID() {
	pool, err := s.Store.GetPoolByID(context.Background(), s.Fixtures.Pools[0].ID)

	s.Require().Nil(err)
	s.Require().Equal(s.Fixtures.Pools[0].ID, pool.ID)
}

func (s *PoolsTestSuite) TestGetPoolByIDInvalidPoolID() {
	_, err := s.Store.GetPoolByID(context.Background(), "dummy-pool-id")

	s.Require().NotNil(err)
	s.Require().Equal("fetching pool by ID: parsing id: invalid request", err.Error())
}

func (s *PoolsTestSuite) TestDeletePoolByID() {
	err := s.Store.DeletePoolByID(context.Background(), s.Fixtures.Pools[0].ID)

	s.Require().Nil(err)
	_, err = s.Store.GetPoolByID(context.Background(), s.Fixtures.Pools[0].ID)
	s.Require().Equal("fetching pool by ID: not found", err.Error())
}

func (s *PoolsTestSuite) TestDeletePoolByIDInvalidPoolID() {
	err := s.Store.DeletePoolByID(context.Background(), "dummy-pool-id")

	s.Require().NotNil(err)
	s.Require().Equal("fetching pool by ID: parsing id: invalid request", err.Error())
}

func TestPoolsTestSuite(t *testing.T) {
	suite.Run(t, new(PoolsTestSuite))
}