package engine


import (
	"context"
	"fmt"
	"os"
	"path"

	"git.defalsify.org/vise.git/engine"
	"git.defalsify.org/vise.git/logging"
	"git.defalsify.org/vise.git/resource"
	"git.grassecon.net/urdt/ussd/internal/handlers"
	"git.grassecon.net/urdt/ussd/internal/handlers/server"
	"git.grassecon.net/urdt/ussd/internal/storage"
	testdataloader "github.com/peteole/testdata-loader"
)

var (
	baseDir   = testdataloader.GetBasePath()
	logg      = logging.NewVanilla()
	scriptDir = path.Join(baseDir, "services", "registration")
)

func TestEngine(sessionId string) (engine.Engine, func()) {
	var accountService server.AccountServiceInterface
	ctx := context.Background()
	ctx = context.WithValue(ctx, "SessionId", sessionId)
	pfp := path.Join(scriptDir, "pp.csv")

	cfg := engine.Config{
		Root:       "root",
		SessionId:  sessionId,
		OutputSize: uint32(160),
		FlagCount:  uint32(16),
	}

	dbDir := ".test_state"
	resourceDir := scriptDir
	menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)

	err := menuStorageService.EnsureDbDir()
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	rs, err := menuStorageService.GetResource(ctx)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	pe, err := menuStorageService.GetPersister(ctx)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	userDataStore, err := menuStorageService.GetUserdataDb(ctx)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	dbResource, ok := rs.(*resource.DbResource)
	if !ok {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs)
	lhs.SetDataStore(&userDataStore)
	lhs.SetPersister(pe)

	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	if OnlineTestEnabled {
		accountService = &server.AccountService{}
	} else {
		accountService = &server.MockAccountService{}
	}
	hl, err := lhs.GetHandler(accountService)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	en := lhs.GetEngine()
	en = en.WithFirst(hl.Init)

	cleanFn := func() {
		err := en.Finish()
		if err != nil {
			logg.Errorf(err.Error())
		}

		err = menuStorageService.Close()
		if err != nil {
			logg.Errorf(err.Error())
		}
		logg.Infof("testengine storage closed")
	}

	//en = en.WithDebug(nil)
	return en, cleanFn
}