package main

import (
	"context"
	"flag"
	"fmt"
	"net/http"
	"os"
	"os/signal"
	"path"
	"strconv"
	"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/request"
	httprequest "git.grassecon.net/grassrootseconomics/visedriver/request/http"
	"git.grassecon.net/grassrootseconomics/visedriver/storage"

	"git.grassecon.net/grassrootseconomics/sarafu-vise/args"
	"git.grassecon.net/grassrootseconomics/sarafu-vise/handlers"
	"git.grassecon.net/grassrootseconomics/sarafu-vise/services"
)

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

func main() {
	config.LoadConfig()

	override := config.NewOverride()
	var size uint
	var engineDebug bool
	var host string
	var port uint
	var err error
	var gettextDir string
	var langs args.LangVar
	var resourceDir string

	flag.StringVar(override.DbConn, "c", "?", "default connection string (replaces all unspecified strings)")
	flag.StringVar(override.UserConn, "userdata", "?", "userdata store connection string")
	flag.StringVar(override.ResourceConn, "resource", "?", "resource data directory")
	flag.StringVar(&resourceDir, "resource-dir", "", "resource data directory. If set, overrides --resource to create a non-binary fsdb for the given path.")
	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()

	if resourceDir != "" {
		*override.ResourceConn = resourceDir
		override.ResourceConnMode = storage.DBMODE_TEXT
	}
	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)

	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)

	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)
	}

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

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

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

	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)
	}

	//accountService := services.New(ctx, menuStorageService, connData)

	rp := &httprequest.DefaultRequestParser{}
	bsh := request.NewBaseRequestHandler(cfg, rs, stateStore, userdataStore, rp, hl)
	sh := httprequest.NewHTTPRequestHandler(bsh)
	s := &http.Server{
		Addr:    fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
		Handler: sh,
	}
	shutdownFunc := func() {
		sh.Shutdown(ctx)
	}
	s.RegisterOnShutdown(shutdownFunc)

	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:
		}
		s.Shutdown(ctx)
	}()
	err = s.ListenAndServe()
	if err != nil {
		logg.Infof("Server closed with error", "err", err)
	}
}