Engine: Scripting support (#383)

* WIP

* updated appveyor and increased deadline 5 seconds due to increased linters being added

* revert files to upstream/engine

* WIP

* WIP

* mod file changes

* added script manager

* Added manager/and cli interfaces to scripting

* Added script task handler

* WIP - Added timer/repeat support and fleshed out wrapper further

* autoload support added + WIP

* WIP commit

* added account balance info

* btc markets temp work around

* WIP - merged with upstream for new order package BTC Markets responses broken

* Cancel order wrapper WIP

*  order wrapper update

* Added test coverage for VM

* moved to map for VM List shutdown of all VM now handled added gctcli commands for list and stop of running scripts

* added override to load/execute for path

* fixed incorrect channel shutdown added further test coverage and restructured gctcli commands into sub commands

* increased test coverage for packages

* Added docs cleaned up tests and example scripts

* Test coverage increased for module/gct/exchange package

* windows fixes

* merged upstream/engine

* WIP

* logger fixes - removed pointer to bool check removed duplicate test check for logger

* remove unused mutex

* added inital upload support

* fix linter issues for go-fmt

* added zip support for uploading and added base for fund withdrawing

* changed error return types and also log errors, fix zip path issue

* improved error outputs and code flow

* pairs response fix added protobuf defs for stop all and list all

* added stop all running scripts general clean up and moved across to OrderManager

* linter fixes (gofmt)

* added list all command

* rewrote zip handler to be cleaner also fixed file overwrite on upload

* added query command reworked tests

* added further error checking to compileandrun corrected use of pointers for accountinfo

* bumped tengo version

* Removed named returns reworded log messages removed unused falseptr

* WIP

* Added virutal machine limit improved config options

* added model for script event added upload validation

* script_event table has been completed, tests for wrapper functions implemented

* README updates

* reverted changes opened new PR to move withdraw struct outs

* intial work on adding withdraw support after merger of withdraw package

* started work on examples

* Added crypto withdraw support

* fix switch case assignment and gofmt project

* Reworking Fiat withdraw request pending #402

* removed double pointer call

* added withdraw support for fiat  currencies

* added tests for withdraw methods increased readme

* removed local tengo require and also fix linter issues

* Added default log size const added basic test for invalid script execution

* First pass at moving wrapper to validator package to allow proper validation of uploaded scripts

* Added script details to README added config test added test for no file extension

* moved tests to const and fixed incorrect pathing

* added test coverage to withdraw package

* corrected file close handling

* point to included configtest.json

* extended validator support when a script is uploaded

* Bug fix on bool logic

* Added mutex

* Don't create autit events on test execution

* reverted common to master

* moved file rename to unix timestamp format

* converted logger enabled back to pointer as i need nilness check also moved scriptid to text over blob

* started work on autoload add/remove support

* First round of PR fixes (mostly commented exports)

* Moved GCTScript load to last, removed unneeded error from cleanup()

* Comment clairty for AuitEventID

* added autoload add/remove command to cli

* added tests for autoload

* Test updates for Exchanges

* linter fixes (gofmt)

* Removed double check of engine pointer

* remove possible nil pointer on GetSpecificTicker

* Fixed not closing file handler on write that causes archive removal to fail

* file handler Close clean ups

* corrected spelling on error return and return invalid name n autoload

* moved strings to cosnt moved bool pointer creation to convert package

* new zip extractor added

* Validation has been added to archive uploads

* removed shadow var on err

* added ok check to conversion

* converted condition check

* basic test for zip extract added

* new zip handler

* reverted back to old atomic loading system

* removed shadow err

* lets add a new line

* added space to error return

* command line toggle for script now works properly

* readme updated

* set configLoaded to true

* check for configLoaded condition

* added mutex to allow for multiple access on virtual machine increased test coverage disable script manager if scripting is disabled

* linked up to enable/disablesubsystem commands

* added start/stop example to readme

* reworked logic on test as check should be done on Load()

* updated to tengo v2

* linters

* lower time on ntp client to stop slippage

* remove all fails if any fail validtion from an archive

* remove vm from list if timer is invalid

* removed shadow on err

* remove config creation from NTPCheck test

* WIP testing DB changes

* add unique constraint

* WIP: created has many model

* linters run

* basic sqlite3 support added for new database format

* linters run

* Added test coverage for script repo

* removed unused print

* updated env vars for CI instances

* updated env vars for CI instances

* Updated test packages

* Test updates for postgresql

* removed invalid tests from postgres

* remove duplication of struct and improved code flow

* general cleanup

* wording changes on log output

* use databasemgr logger and add support for autoload without file extension

* corrected test naming

* return correct error

* return correct error again version 82

* store scriptdata on creation

* Hello

* Errorln -> Errorf

* Removed unused vars

* Read me updates

* testing without parallel

* comment on exported type

* added nil check against VM for test

* add debugging information

* gofmt

* remove verbose and data sent to channel

* Added debug information

* linter fixes (gofmt)

* remove unused CompileAndRun() call

* test sleep to see if issue is timing related

* semi-concurrent map fixes

* one day i will run gofmt or setup precommit hooks

* new line :D

* increased test coverage

* added correct sleep time

* Moved over to sync map

* linter fixes (gofmt)

* goimports

* moved VM related methods to vm.go

* new line at end of file

* trying increased timeout on golangci-lint for appveyor

* add debugging information

* removed timeout

* reworked timeout logic

* linter fixes (gofmt)

* increased test coverage

* increased test coverage

* one day i will run gofmt or setup precommit hooks

* removed unused exchange test

* increased golangci-lint timeout

* Added nil check on shutdown and test coverage for it lowered timeout back to 1:30

* reworked ID system

* removed script hash as it was unused

* added comments on exported methods and read me update

* reorder code

* removed to atomic.value for test execution flag

* increased test coverage

* move add further up execution

* point to correct script file

database/tests/script_test.go

@@ -0,0 +1,92 @@
+package tests
+
+import (
+	"fmt"
+	"path/filepath"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/thrasher-corp/gocryptotrader/database"
+	"github.com/thrasher-corp/gocryptotrader/database/drivers"
+	"github.com/thrasher-corp/gocryptotrader/database/repository"
+	"github.com/thrasher-corp/gocryptotrader/database/repository/script"
+	"github.com/thrasher-corp/goose"
+	"github.com/volatiletech/null"
+)
+
+func TestScript(t *testing.T) {
+	testCases := []struct {
+		name   string
+		config *database.Config
+		runner func()
+		closer func(t *testing.T, dbConn *database.Db) error
+		output interface{}
+	}{
+		{
+			"SQLite-Write",
+			&database.Config{
+				Driver:            database.DBSQLite3,
+				ConnectionDetails: drivers.ConnectionDetails{Database: "./testdb"},
+			},
+
+			writeScript,
+			closeDatabase,
+			nil,
+		},
+		{
+			"Postgres-Write",
+			postgresTestDatabase,
+			writeScript,
+			nil,
+			nil,
+		},
+	}
+
+	for _, tests := range testCases {
+		test := tests
+
+		t.Run(test.name, func(t *testing.T) {
+			if !checkValidConfig(t, &test.config.ConnectionDetails) {
+				t.Skip("database not configured skipping test")
+			}
+
+			dbConn, err := connectToDatabase(t, test.config)
+
+			if err != nil {
+				t.Fatal(err)
+			}
+			path := filepath.Join("..", "migrations")
+			err = goose.Run("up", dbConn.SQL, repository.GetSQLDialect(), path, "")
+			if err != nil {
+				t.Fatalf("failed to run migrations %v", err)
+			}
+
+			if test.runner != nil {
+				test.runner()
+			}
+
+			if test.closer != nil {
+				err = test.closer(t, dbConn)
+				if err != nil {
+					t.Log(err)
+				}
+			}
+		})
+	}
+}
+
+func writeScript() {
+	var wg sync.WaitGroup
+	for x := 0; x < 20; x++ {
+		wg.Add(1)
+
+		go func(x int) {
+			defer wg.Done()
+			test := fmt.Sprintf("test-%v", x)
+			var data null.Bytes
+			script.Event(test, test, test, data, test, test, time.Now())
+		}(x)
+	}
+	wg.Wait()
+}