ussd/cmd/main.go

package main

import (
	"context"
	"flag"
	"fmt"
	"log"
	"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/config"
	"git.grassecon.net/urdt/ussd/initializers"
	"git.grassecon.net/urdt/ussd/internal/handlers"
	"git.grassecon.net/urdt/ussd/internal/storage"
	"git.grassecon.net/urdt/ussd/remote"
)

var (
	logg      = logging.NewVanilla()
	scriptDir = path.Join("services", "registration")
	InfoLogger    *log.Logger
	ErrorLogger   *log.Logger
)

func init() {
	initializers.LoadEnvVariables()

	logFile := "urdt-ussd-cli.log"

	file, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
	if err != nil {
		log.Fatal(err)
	}

	InfoLogger = log.New(file, "INFO: ", log.Ldate|log.Ltime|log.Lshortfile)
	ErrorLogger = log.New(file, "ERROR: ", log.Ldate|log.Ltime|log.Lshortfile)

	// Inject into remote package
	remote.InfoLogger = InfoLogger
	remote.ErrorLogger = ErrorLogger
}

func main() {
	config.LoadConfig()

	var dbDir string
	var size uint
	var sessionId string
	var database string
	var engineDebug bool
	flag.StringVar(&sessionId, "session-id", "075xx2123", "session id")
	flag.StringVar(&database, "db", "gdbm", "database to be used")
	flag.StringVar(&dbDir, "dbdir", ".state", "database dir to read from")
	flag.BoolVar(&engineDebug, "d", false, "use engine debug output")
	flag.UintVar(&size, "s", 160, "max size of output")
	flag.Parse()

	logg.Infof("start command", "dbdir", dbDir, "outputsize", size)

	ctx := context.Background()
	ctx = context.WithValue(ctx, "SessionId", sessionId)
	ctx = context.WithValue(ctx, "Database", database)
	pfp := path.Join(scriptDir, "pp.csv")

	cfg := engine.Config{
		Root:       "root",
		SessionId:  sessionId,
		OutputSize: uint32(size),
		FlagCount:  uint32(128),
	}

	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(ctx, pfp, true, dbResource, cfg, rs)
	lhs.SetDataStore(&userdatastore)
	lhs.SetPersister(pe)

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

	accountService := remote.AccountService{}
	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)
	if engineDebug {
		en = en.WithDebug(nil)
	}

	err = engine.Loop(ctx, en, os.Stdin, os.Stdout, nil)
	if err != nil {
		fmt.Fprintf(os.Stderr, "loop exited with error: %v\n", err)
		os.Exit(1)
	}
}