package main

import (
	"context"
	"flag"
	"fmt"
	"os"
	"os/signal"
	"path"
	"syscall"

	"git.defalsify.org/vise.git/engine"
	"git.defalsify.org/vise.git/lang"
	"git.defalsify.org/vise.git/logging"
	"git.defalsify.org/vise.git/resource"

	"git.grassecon.net/grassrootseconomics/sarafu-vise/config"
	"git.grassecon.net/grassrootseconomics/visedriver/storage"
	"git.grassecon.net/grassrootseconomics/visedriver/request"
	"git.grassecon.net/grassrootseconomics/sarafu-vise/services"
	"git.grassecon.net/grassrootseconomics/sarafu-vise/args"
	"git.grassecon.net/grassrootseconomics/sarafu-vise/handlers"
)

var (
	logg          = logging.NewVanilla()
	scriptDir     = path.Join("services", "registration")
	menuSeparator = ": "
)

type asyncRequestParser struct {
	sessionId string
	input     []byte
}

func (p *asyncRequestParser) GetSessionId(ctx context.Context, r any) (string, error) {
	return p.sessionId, nil
}

func (p *asyncRequestParser) GetInput(r any) ([]byte, error) {
	return p.input, nil
}

func main() {
	config.LoadConfig()
	
	var override config.Override
	var sessionId string
	var size uint
	var engineDebug bool
	var host string
	var port uint
	var err error
	var gettextDir string
	var langs args.LangVar

	flag.StringVar(&sessionId, "session-id", "075xx2123", "session id")
	flag.StringVar(override.DbConn, "c", "?", "default connection string (replaces all unspecified strings)")
	flag.StringVar(override.ResourceConn, "resource", "?", "resource connection string")
	flag.StringVar(override.UserConn, "userdata", "?", "userdata store connection string")
	flag.StringVar(override.StateConn, "state", "?", "state store connection string")

	flag.BoolVar(&engineDebug, "d", false, "use engine debug output")
	flag.UintVar(&size, "s", 160, "max size of output")
	flag.StringVar(&host, "h", config.Host(), "http host")
	flag.UintVar(&port, "p", config.Port(), "http port")
	flag.StringVar(&gettextDir, "gettext", "", "use gettext translations from given directory")
	flag.Var(&langs, "language", "add symbol resolution for language")
	flag.Parse()

	config.Apply(&override)
	conns, err := config.GetConns()
	if err != nil {
		fmt.Fprintf(os.Stderr, "conn specification error: %v\n", err)
		os.Exit(1)
	}

	logg.Infof("start command", "conn", conns, "outputsize", size, "sessionId", sessionId)

	ctx := context.Background()

	ln, err := lang.LanguageFromCode(config.Language())
	if err != nil {
		fmt.Fprintf(os.Stderr, "default language set error: %v", err)
		os.Exit(1)
	}
	ctx = context.WithValue(ctx, "Language", ln)

	pfp := path.Join(scriptDir, "pp.csv")

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

	if engineDebug {
		cfg.EngineDebug = true
	}

	menuStorageService := storage.NewMenuStorageService(conns)
	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)
	}

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

	dbResource, ok := rs.(*resource.DbResource)
	if !ok {
		os.Exit(1)
	}

	lhs, err := handlers.NewLocalHandlerService(ctx, pfp, true, dbResource, cfg, rs)
	lhs.SetDataStore(&userdataStore)

	accountService := services.New(ctx, menuStorageService)

	hl, err := lhs.GetHandler(accountService)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}

	stateStore, err := menuStorageService.GetStateStore(ctx)
	if err != nil {
		fmt.Fprintf(os.Stderr, err.Error())
		os.Exit(1)
	}
	//defer stateStore.Close(ctx)

	rp := &asyncRequestParser{
		sessionId: sessionId,
	}
	sh := request.NewBaseRequestHandler(cfg, rs, stateStore, userdataStore, rp, hl)
	cfg.SessionId = sessionId
	rqs := request.RequestSession{
		Ctx:    ctx,
		Writer: os.Stdout,
		Config: cfg,
	}

	cint := make(chan os.Signal)
	cterm := make(chan os.Signal)
	signal.Notify(cint, os.Interrupt, syscall.SIGINT)
	signal.Notify(cterm, os.Interrupt, syscall.SIGTERM)
	go func() {
		select {
		case _ = <-cint:
		case _ = <-cterm:
		}
		sh.Shutdown(ctx)
	}()

	for true {
		rqs, err = sh.Process(rqs)
		if err != nil {
			logg.ErrorCtxf(ctx, "error in process: %v", "err", err)
			fmt.Errorf("error in process: %v", err)
			os.Exit(1)
		}
		rqs, err = sh.Output(rqs)
		if err != nil {
			logg.ErrorCtxf(ctx, "error in output: %v", "err", err)
			fmt.Errorf("error in output: %v", err)
			os.Exit(1)
		}
		rqs, err = sh.Reset(ctx, rqs)
		if err != nil {
			logg.ErrorCtxf(ctx, "error in reset: %v", "err", err)
			fmt.Errorf("error in reset: %v", err)
			os.Exit(1)
		}
		fmt.Println("")
		_, err = fmt.Scanln(&rqs.Input)
		if err != nil {
			logg.ErrorCtxf(ctx, "error in input", "err", err)
			fmt.Errorf("error in input: %v", err)
			os.Exit(1)
		}
	}
}