/*

Copyright 2024 Blnk Finance Authors.

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 blnk

import (

"encoding/json"

"log"

"testing"

"time"

"github.com/brianvoe/gofakeit/v6"

"github.com/jerry-enebeli/blnk/internal/cache"

"github.com/jerry-enebeli/blnk/model"

"github.com/jerry-enebeli/blnk/config"

"github.com/jerry-enebeli/blnk/database"

"github.com/DATA-DOG/go-sqlmock"

"github.com/stretchr/testify/assert"

)

func newTestDataSource() (database.IDataSource, sqlmock.Sqlmock, error) {

cnf := &config.Configuration{

Redis: config.RedisConfig{

Dns: "localhost:6379",

},

Queue: config.QueueConfig{

WebhookQueue: "webhook_queue",

TransactionQueue: "transaction_queue",

IndexQueue: "index_queue",

NumberOfQueues: 1,

},

Server: config.ServerConfig{SecretKey: "some-secret"},

AccountNumberGeneration: config.AccountNumberGenerationConfig{

HttpService: config.AccountGenerationHttpService{

Url: "http://example.com/generateAccount",

},

},

}

config.ConfigStore.Store(cnf)

db, mock, err := sqlmock.New()

if err != nil {

log.Printf("an error '%s' was not expected when opening a stub database Connection", err)

}

newCache, err := cache.NewCache()

if err != nil {

log.Printf("an error '%s' was not expected", err)

}

return &database.Datasource{Conn: db, Cache: newCache}, mock, nil

}

func TestCreateLedger(t *testing.T) {

datasource, mock, err := newTestDataSource()

if err != nil {

t.Fatalf("Error creating test data source: %s", err)

}

d, err := NewBlnk(datasource)

if err != nil {

t.Fatalf("Error creating Blnk instance: %s", err)

}

ledger := model.Ledger{Name: "Test Ledger", MetaData: map[string]interface{}{"key": "value"}}

metaDataJSON, _ := json.Marshal(ledger.MetaData)

// Set expectations on mock

mock.ExpectExec("INSERT INTO blnk.ledgers").

WithArgs(metaDataJSON, ledger.Name, sqlmock.AnyArg()).

WillReturnResult(sqlmock.NewResult(1, 1))

// Execute the test function

result, err := d.CreateLedger(ledger)

// Assertions

assert.NoError(t, err)

assert.NotEmpty(t, result.LedgerID)

assert.WithinDuration(t, time.Now(), result.CreatedAt, time.Second)

assert.Contains(t, result.LedgerID, "ldg_")

// Check if all expectations were met

if err := mock.ExpectationsWereMet(); err != nil {

t.Errorf("there were unfulfilled expectations: %s", err)

}

}

func TestGetAllLedgers(t *testing.T) {

datasource, mock, err := newTestDataSource()

if err != nil {

t.Fatalf("Error creating test data source: %s", err)

}

d, err := NewBlnk(datasource)

if err != nil {

t.Fatalf("Error creating Blnk instance: %s", err)

}

rows := sqlmock.NewRows([]string{"ledger_id", "name", "created_at", "meta_data"}).

AddRow("ldg_1234567", "general ledger", time.Now(), `{"key":"value"}`)

mock.ExpectQuery("SELECT ledger_id, name, created_at, meta_data FROM blnk.ledgers ORDER BY created_at DESC LIMIT \\$1 OFFSET \\$2").

WithArgs(1, 1).

WillReturnRows(rows)

result, err := d.GetAllLedgers(1, 1)

assert.NoError(t, err)

assert.Len(t, result, 1)

assert.Equal(t, "ldg_1234567", result[0].LedgerID)

if err := mock.ExpectationsWereMet(); err != nil {

t.Errorf("there were unfulfilled expectations: %s", err)

}

}

func TestGetLedgerByID(t *testing.T) {

datasource, mock, err := newTestDataSource()

if err != nil {

t.Fatalf("Error creating test data source: %s", err)

}

d, err := NewBlnk(datasource)

if err != nil {

t.Fatalf("Error creating Blnk instance: %s", err)

}

testID := gofakeit.UUID()

row := sqlmock.NewRows([]string{gofakeit.UUID(), "name", "created_at", "meta_data"}).

AddRow(testID, "test-name", time.Now(), `{"key":"value"}`)

mock.ExpectQuery("SELECT ledger_id, name, created_at, meta_data FROM blnk.ledgers WHERE ledger_id =").

WithArgs(testID).

WillReturnRows(row)

result, err := d.GetLedgerByID(testID)

assert.NoError(t, err)

assert.NotNil(t, result)

assert.Equal(t, testID, result.LedgerID)

if err := mock.ExpectationsWereMet(); err != nil {

t.Errorf("there were unfulfilled expectations: %s", err)

}

}