//go:build integration
// +build integration

/*
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>
*/

package v1

import (
	"os"
	"path"
	"reflect"
	"testing"
	"time"

	"github.com/cgrates/birpc"
	"github.com/cgrates/birpc/context"
	"github.com/cgrates/cgrates/config"
	"github.com/cgrates/cgrates/engine"
	"github.com/cgrates/cgrates/utils"
)

var (
	filterCfgPath   string
	filterCfg       *config.CGRConfig
	filterRPC       *birpc.Client
	filter          *engine.FilterWithAPIOpts
	filterConfigDIR string //run tests for specific configuration

	sTestsFilter = []func(t *testing.T){
		testFilterInitCfg,
		testFilterResetDataDB,
		testFilterStartEngine,
		testFilterRpcConn,
		testFilterStartCPUProfiling,
		testFilterGetFilterBeforeSet,
		testFilterSetFilter,
		testFilterGetFilterAfterSet,
		testFilterGetFilterIDs,
		testFilterUpdateFilter,
		testFilterGetFilterAfterUpdate,
		testFilterRemoveFilter,
		testFilterGetFilterAfterRemove,
		testFilterSetFilterWithoutTenant,
		testFilterRemoveFilterWithoutTenant,
		testFilterStopCPUProfiling,
		testFilterKillEngine,
	}
)

// Test start here
func TestFilterIT(t *testing.T) {
	switch *utils.DBType {
	case utils.MetaInternal:
		filterConfigDIR = "tutinternal"
	case utils.MetaMySQL:
		filterConfigDIR = "tutmysql"
	case utils.MetaMongo:
		filterConfigDIR = "tutmongo"
	case utils.MetaPostgres:
		t.SkipNow()
	default:
		t.Fatal("Unknown Database type")
	}
	for _, stest := range sTestsFilter {
		t.Run(filterConfigDIR, stest)
	}
}

func testFilterInitCfg(t *testing.T) {
	var err error
	filterCfgPath = path.Join(*utils.DataDir, "conf", "samples", filterConfigDIR)
	filterCfg, err = config.NewCGRConfigFromPath(filterCfgPath)
	if err != nil {
		t.Error(err)
	}
}

// Wipe out the cdr database
func testFilterResetDataDB(t *testing.T) {
	if err := engine.InitDataDB(filterCfg); err != nil {
		t.Fatal(err)
	}
}

// Start CGR Engine
func testFilterStartEngine(t *testing.T) {
	if _, err := engine.StopStartEngine(filterCfgPath, *utils.WaitRater); err != nil {
		t.Fatal(err)
	}
}

// Connect rpc client to rater
func testFilterRpcConn(t *testing.T) {
	var err error
	filterRPC, err = newRPCClient(filterCfg.ListenCfg()) // We connect over JSON so we can also troubleshoot if needed
	if err != nil {
		t.Fatal(err)
	}
}

func testFilterStartCPUProfiling(t *testing.T) {
	argPath := &utils.DirectoryArgs{
		DirPath: "/tmp",
	}
	var reply string
	if err := filterRPC.Call(context.Background(), utils.CoreSv1StartCPUProfiling,
		argPath, &reply); err != nil {
		t.Error(err)
	}
}

func testFilterGetFilterBeforeSet(t *testing.T) {
	var reply *engine.Filter
	if err := filterRPC.Call(context.Background(), utils.APIerSv1GetFilter, &utils.TenantID{Tenant: "cgrates.org", ID: "Filter1"}, &reply); err == nil ||
		err.Error() != utils.ErrNotFound.Error() {
		t.Error(err)
	}
}

func testFilterSetFilter(t *testing.T) {
	filter = &engine.FilterWithAPIOpts{
		Filter: &engine.Filter{
			Tenant: "cgrates.org",
			ID:     "Filter1",
			Rules: []*engine.FilterRule{
				{
					Element: "~*req.Account",
					Type:    utils.MetaString,
					Values:  []string{"1001", "1002"},
				},
			},
			ActivationInterval: &utils.ActivationInterval{
				ActivationTime: time.Date(2014, 7, 14, 14, 25, 0, 0, time.UTC),
				ExpiryTime:     time.Date(2014, 7, 14, 14, 25, 0, 0, time.UTC),
			},
		},
	}

	var result string
	if err := filterRPC.Call(context.Background(), utils.APIerSv1SetFilter, filter, &result); err != nil {
		t.Error(err)
	} else if result != utils.OK {
		t.Error("Unexpected reply returned", result)
	}
}

func testFilterGetFilterIDs(t *testing.T) {
	expected := []string{"Filter1"}
	var result []string
	if err := filterRPC.Call(context.Background(), utils.APIerSv1GetFilterIDs, &utils.PaginatorWithTenant{}, &result); err != nil {
		t.Error(err)
	} else if len(expected) != len(result) {
		t.Errorf("Expecting : %+v, received: %+v", expected, result)
	}
	if err := filterRPC.Call(context.Background(), utils.APIerSv1GetFilterIDs, &utils.PaginatorWithTenant{Tenant: "cgrates.org"}, &result); err != nil {
		t.Error(err)
	} else if len(expected) != len(result) {
		t.Errorf("Expecting : %+v, received: %+v", expected, result)
	}
}

func testFilterGetFilterAfterSet(t *testing.T) {
	var reply *engine.Filter
	if err := filterRPC.Call(context.Background(), utils.APIerSv1GetFilter, &utils.TenantID{Tenant: "cgrates.org", ID: "Filter1"}, &reply); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(filter.Filter, reply) {
		t.Errorf("Expecting : %+v, received: %+v", filter.Filter, reply)
	}
}

func testFilterUpdateFilter(t *testing.T) {
	filter.Rules = []*engine.FilterRule{
		{
			Element: "~*req.Account",
			Type:    utils.MetaString,
			Values:  []string{"1001", "1002"},
		},
		{
			Element: "~*req.Destination",
			Type:    utils.MetaPrefix,
			Values:  []string{"10", "20"},
		},
	}
	var result string
	if err := filterRPC.Call(context.Background(), utils.APIerSv1SetFilter, filter, &result); err != nil {
		t.Error(err)
	} else if result != utils.OK {
		t.Error("Unexpected reply returned", result)
	}
}

func testFilterGetFilterAfterUpdate(t *testing.T) {
	var reply *engine.Filter
	if err := filterRPC.Call(context.Background(), utils.APIerSv1GetFilter,
		&utils.TenantID{Tenant: "cgrates.org", ID: "Filter1"}, &reply); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(filter.Filter, reply) {
		t.Errorf("Expecting : %+v, received: %+v", filter.Filter, reply)
	}
}

func testFilterRemoveFilter(t *testing.T) {
	var resp string
	if err := filterRPC.Call(context.Background(), utils.APIerSv1RemoveFilter,
		&utils.TenantIDWithAPIOpts{TenantID: &utils.TenantID{Tenant: "cgrates.org", ID: "Filter1"}}, &resp); err != nil {
		t.Error(err)
	} else if resp != utils.OK {
		t.Error("Unexpected reply returned", resp)
	}
}

func testFilterGetFilterAfterRemove(t *testing.T) {
	var reply *engine.Filter
	if err := filterRPC.Call(context.Background(), utils.APIerSv1GetFilter,
		&utils.TenantID{Tenant: "cgrates.org", ID: "Filter1"}, &reply); err == nil ||
		err.Error() != utils.ErrNotFound.Error() {
		t.Error(err)
	}
}

func testFilterKillEngine(t *testing.T) {
	if err := engine.KillEngine(100); err != nil {
		t.Error(err)
	}
}

func testFilterSetFilterWithoutTenant(t *testing.T) {
	filter = &engine.FilterWithAPIOpts{
		Filter: &engine.Filter{
			ID: "FilterWithoutTenant",
			Rules: []*engine.FilterRule{
				{
					Element: "~*req.Account",
					Type:    utils.MetaString,
					Values:  []string{"1001", "1002"},
				},
			},
			ActivationInterval: &utils.ActivationInterval{
				ActivationTime: time.Date(2014, 7, 14, 14, 25, 0, 0, time.UTC),
				ExpiryTime:     time.Date(2014, 7, 14, 14, 25, 0, 0, time.UTC),
			},
		},
	}
	var reply string
	if err := filterRPC.Call(context.Background(), utils.APIerSv1SetFilter, filter, &reply); err != nil {
		t.Error(err)
	} else if reply != utils.OK {
		t.Error("Unexpected reply returned", reply)
	}
	var result *engine.Filter
	filter.Filter.Tenant = "cgrates.org"
	if err := filterRPC.Call(context.Background(), utils.APIerSv1GetFilter,
		&utils.TenantID{ID: "FilterWithoutTenant"},
		&result); err != nil {
		t.Error(err)
	} else if !reflect.DeepEqual(result, filter.Filter) {
		t.Errorf("Expected %+v \n, received %+v", utils.ToJSON(filter.Filter), utils.ToJSON(result))
	}
}

func testFilterRemoveFilterWithoutTenant(t *testing.T) {
	var reply string
	if err := filterRPC.Call(context.Background(), utils.APIerSv1RemoveFilter,
		&utils.TenantIDWithAPIOpts{TenantID: &utils.TenantID{ID: "FilterWithoutTenant"}},
		&reply); err != nil {
		t.Error(err)
	} else if reply != utils.OK {
		t.Error("Unexpected reply returned", reply)
	}
	var result *engine.Filter
	if err := filterRPC.Call(context.Background(), utils.APIerSv1GetFilter,
		&utils.TenantID{ID: "FilterWithoutTenant"},
		&result); err == nil || err.Error() != utils.ErrNotFound.Error() {
		t.Error(err)
	}
}

func testFilterStopCPUProfiling(t *testing.T) {
	var reply string
	if err := filterRPC.Call(context.Background(), utils.CoreSv1StopCPUProfiling,
		new(utils.DirectoryArgs), &reply); err != nil {
		t.Error(err)
	}
	file, err := os.Open("/tmp/cpu.prof")
	if err != nil {
		t.Error(err)
	}
	defer file.Close()
	//compare the size
	size, err := file.Stat()
	if err != nil {
		t.Error(err)
	} else if size.Size() < int64(300) {
		t.Errorf("Size of CPUProfile %v is lower that expected", size.Size())
	}
	//after we checked that CPUProfile was made successfully, can delete it
	if err := os.Remove("/tmp/cpu.prof"); err != nil {
		t.Error(err)
	}
}
