/*
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 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 General Public License for more details.

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

import (
	"reflect"
	"testing"
	"time"
)

func TestResourceProfileTenantID(t *testing.T) {
	testStruct := ResourceProfile{
		Tenant: "test_tenant",
		ID:     "test_id",
	}
	result := testStruct.TenantID()
	expected := ConcatenatedKey(testStruct.Tenant, testStruct.ID)
	if !reflect.DeepEqual(expected, result) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", expected, result)
	}
}

func TestResourceUsageTenantID(t *testing.T) {
	testStruct := ResourceUsage{
		Tenant: "test_tenant",
		ID:     "test_id",
	}
	result := testStruct.TenantID()
	expected := ConcatenatedKey(testStruct.Tenant, testStruct.ID)
	if !reflect.DeepEqual(expected, result) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", expected, result)
	}
}

func TestResourceUsageIsActive(t *testing.T) {
	testStruct := ResourceUsage{
		Tenant:     "test_tenant",
		ID:         "test_id",
		ExpiryTime: time.Date(2014, 1, 14, 0, 0, 0, 0, time.UTC),
	}
	result := testStruct.IsActive(time.Date(2014, 1, 13, 0, 0, 0, 0, time.UTC))
	if !reflect.DeepEqual(true, result) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", true, result)
	}
}

func TestResourceUsageIsActiveFalse(t *testing.T) {
	testStruct := ResourceUsage{
		Tenant:     "test_tenant",
		ID:         "test_id",
		ExpiryTime: time.Date(2014, 1, 14, 0, 0, 0, 0, time.UTC),
	}
	result := testStruct.IsActive(time.Date(2014, 1, 15, 0, 0, 0, 0, time.UTC))
	if !reflect.DeepEqual(false, result) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", false, result)
	}
}

func TestResourceUsageClone(t *testing.T) {
	testStruct := &ResourceUsage{
		Tenant:     "test_tenant",
		ID:         "test_id",
		ExpiryTime: time.Date(2014, 1, 14, 0, 0, 0, 0, time.UTC),
	}
	result := testStruct.Clone()
	if !reflect.DeepEqual(testStruct, result) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", testStruct, result)
	}
	testStruct.Tenant = "test_tenant2"
	testStruct.ID = "test_id2"
	testStruct.ExpiryTime = time.Date(2015, 1, 14, 0, 0, 0, 0, time.UTC)
	if reflect.DeepEqual(testStruct.Tenant, result.Tenant) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", testStruct.Tenant, result.Tenant)
	}
	if reflect.DeepEqual(testStruct.ID, result.ID) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", testStruct.ID, result.ID)
	}
	if reflect.DeepEqual(testStruct.ExpiryTime, result.ExpiryTime) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", testStruct.ExpiryTime, result.ExpiryTime)
	}
}

func TestResourceTenantID(t *testing.T) {
	testStruct := Resource{
		Tenant: "test_tenant",
	}
	result := testStruct.TenantID()
	if reflect.DeepEqual(testStruct.Tenant, result) {
		t.Errorf("\nExpecting <%+v>,\n Received <%+v>", testStruct.Tenant, result)
	}
}

func TestResourceTotalUsage1(t *testing.T) {
	testStruct := Resource{
		Tenant: "test_tenant",
		ID:     "test_id",
		Usages: map[string]*ResourceUsage{
			"0": {
				Tenant:     "test_tenant2",
				ID:         "test_id2",
				ExpiryTime: time.Date(2015, 1, 14, 0, 0, 0, 0, time.UTC),
				Units:      1,
			},
			"1": {
				Tenant:     "test_tenant3",
				ID:         "test_id3",
				ExpiryTime: time.Date(2015, 1, 14, 0, 0, 0, 0, time.UTC),
				Units:      2,
			},
		},
	}
	result := testStruct.TotalUsage()
	if reflect.DeepEqual(3, result) {
		t.Errorf("\nExpecting <3>,\n Received <%+v>", result)
	}
}

func TestResourceTotalUsage2(t *testing.T) {
	testStruct := Resource{
		Tenant: "test_tenant",
		ID:     "test_id",
		Usages: map[string]*ResourceUsage{
			"0": {
				Tenant:     "test_tenant2",
				ID:         "test_id2",
				ExpiryTime: time.Date(2015, 1, 14, 0, 0, 0, 0, time.UTC),
				Units:      1,
			},
			"1": {
				Tenant:     "test_tenant3",
				ID:         "test_id3",
				ExpiryTime: time.Date(2015, 1, 14, 0, 0, 0, 0, time.UTC),
				Units:      2,
			},
		},
	}
	result := testStruct.TotalUsage()
	if reflect.DeepEqual(3, result) {
		t.Errorf("\nExpecting <3>,\n Received <%+v>", result)
	}
}

func TestResourcesAvailable(t *testing.T) {
	r := ResourceWithConfig{
		Resource: &Resource{
			Usages: map[string]*ResourceUsage{
				"RU_1": {
					Units: 4,
				},
				"RU_2": {
					Units: 7,
				},
			},
		},
		Config: &ResourceProfile{
			Limit: 10,
		},
	}

	exp := -1.0
	rcv := r.Available()

	if rcv != exp {
		t.Errorf("\nexpected: <%+v>, \nreceived: <%+v>", exp, rcv)
	}
}

type mockWriter struct {
	WriteF func(p []byte) (n int, err error)
}

func (mW *mockWriter) Write(p []byte) (n int, err error) {
	if mW.WriteF != nil {
		return mW.WriteF(p)
	}
	return 0, nil
}

func TestResourceProfileSet(t *testing.T) {
	cp := ResourceProfile{}
	exp := ResourceProfile{
		Tenant:    "cgrates.org",
		ID:        "ID",
		FilterIDs: []string{"fltr1", "*string:~*req.Account:1001"},
		Weights: DynamicWeights{
			{
				Weight: 10,
			}},
		UsageTTL:          10,
		Limit:             10,
		AllocationMessage: "new",
		Blocker:           true,
		Stored:            true,
		ThresholdIDs:      []string{"TH1"},
	}
	if err := cp.Set([]string{}, "", false); err != ErrWrongPath {
		t.Error(err)
	}
	if err := cp.Set([]string{"NotAField"}, "", false); err != ErrWrongPath {
		t.Error(err)
	}
	if err := cp.Set([]string{"NotAField", "1"}, "", false); err != ErrWrongPath {
		t.Error(err)
	}

	if err := cp.Set([]string{Tenant}, "cgrates.org", false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{ID}, "ID", false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{FilterIDs}, "fltr1;*string:~*req.Account:1001", false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{Weights}, ";10", false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{UsageTTL}, 10, false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{Limit}, 10, false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{AllocationMessage}, "new", false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{Blocker}, true, false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{Stored}, true, false); err != nil {
		t.Error(err)
	}
	if err := cp.Set([]string{ThresholdIDs}, "TH1", false); err != nil {
		t.Error(err)
	}

	if !reflect.DeepEqual(exp, cp) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(cp))
	}
}

func TestResourceProfileAsInterface(t *testing.T) {
	rp := ResourceProfile{
		Tenant:    "cgrates.org",
		ID:        "ID",
		FilterIDs: []string{"fltr1", "*string:~*req.Account:1001"},
		Weights: DynamicWeights{
			{
				Weight: 10,
			}},
		UsageTTL:          10,
		Limit:             10,
		AllocationMessage: "new",
		Blocker:           true,
		Stored:            true,
		ThresholdIDs:      []string{"TH1"},
	}
	if _, err := rp.FieldAsInterface(nil); err != ErrNotFound {
		t.Fatal(err)
	}
	if _, err := rp.FieldAsInterface([]string{"field"}); err != ErrNotFound {
		t.Fatal(err)
	}
	if _, err := rp.FieldAsInterface([]string{"field", ""}); err != ErrNotFound {
		t.Fatal(err)
	}
	if val, err := rp.FieldAsInterface([]string{Tenant}); err != nil {
		t.Fatal(err)
	} else if exp := "cgrates.org"; exp != val {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{ID}); err != nil {
		t.Fatal(err)
	} else if exp := ID; exp != val {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{FilterIDs}); err != nil {
		t.Fatal(err)
	} else if exp := rp.FilterIDs; !reflect.DeepEqual(exp, val) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{FilterIDs + "[0]"}); err != nil {
		t.Fatal(err)
	} else if exp := rp.FilterIDs[0]; exp != val {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{Weights}); err != nil {
		t.Fatal(err)
	} else if exp := rp.Weights; !reflect.DeepEqual(exp, val) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{ThresholdIDs}); err != nil {
		t.Fatal(err)
	} else if exp := rp.ThresholdIDs; !reflect.DeepEqual(exp, val) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{ThresholdIDs + "[0]"}); err != nil {
		t.Fatal(err)
	} else if exp := rp.ThresholdIDs[0]; exp != val {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}

	if val, err := rp.FieldAsInterface([]string{UsageTTL}); err != nil {
		t.Fatal(err)
	} else if exp := rp.UsageTTL; !reflect.DeepEqual(exp, val) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{Limit}); err != nil {
		t.Fatal(err)
	} else if exp := rp.Limit; !reflect.DeepEqual(exp, val) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{AllocationMessage}); err != nil {
		t.Fatal(err)
	} else if exp := rp.AllocationMessage; !reflect.DeepEqual(exp, val) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{Blocker}); err != nil {
		t.Fatal(err)
	} else if exp := rp.Blocker; !reflect.DeepEqual(exp, val) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, err := rp.FieldAsInterface([]string{Stored}); err != nil {
		t.Fatal(err)
	} else if exp := rp.Stored; !reflect.DeepEqual(exp, val) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}

	if _, err := rp.FieldAsString([]string{""}); err != ErrNotFound {
		t.Fatal(err)
	}
	if val, err := rp.FieldAsString([]string{ID}); err != nil {
		t.Fatal(err)
	} else if exp := "ID"; exp != val {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
	if val, exp := rp.String(), ToJSON(rp); exp != val {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(val))
	}
}

func TestResourceProfileMerge(t *testing.T) {
	dp := &ResourceProfile{}
	exp := &ResourceProfile{
		Tenant:    "cgrates.org",
		ID:        "ID",
		FilterIDs: []string{"fltr1", "*string:~*req.Account:1001"},
		Weights: DynamicWeights{
			{
				Weight: 10,
			}},
		UsageTTL:          10,
		Limit:             10,
		AllocationMessage: "new",
		Blocker:           true,
		Stored:            true,
		ThresholdIDs:      []string{"TH1"},
	}
	if dp.Merge(&ResourceProfile{
		Tenant:    "cgrates.org",
		ID:        "ID",
		FilterIDs: []string{"fltr1", "*string:~*req.Account:1001"},
		Weights: DynamicWeights{
			{
				Weight: 10,
			}},
		UsageTTL:          10,
		Limit:             10,
		AllocationMessage: "new",
		Blocker:           true,
		Stored:            true,
		ThresholdIDs:      []string{"TH1"},
	}); !reflect.DeepEqual(exp, dp) {
		t.Errorf("Expected %v \n but received \n %v", ToJSON(exp), ToJSON(dp))
	}
}