ussd/cmd/http/main.go

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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/logging"
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"git.defalsify.org/vise.git/resource"
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"git.grassecon.net/urdt/ussd/config"
"git.grassecon.net/urdt/ussd/initializers"
"git.grassecon.net/urdt/ussd/internal/handlers"
httpserver "git.grassecon.net/urdt/ussd/internal/http"
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"git.grassecon.net/urdt/ussd/internal/storage"
)
var (
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logg = logging.NewVanilla()
scriptDir = path.Join("services", "registration")
)
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func init() {
initializers.LoadEnvVariables()
}
func main() {
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config.LoadConfig()
var dbDir string
var resourceDir string
var size uint
var engineDebug bool
var host string
var port uint
flag.StringVar(&dbDir, "dbdir", ".state", "database dir to read from")
flag.StringVar(&resourceDir, "resourcedir", path.Join("services", "registration"), "resource dir")
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flag.BoolVar(&engineDebug, "d", false, "use engine debug output")
flag.UintVar(&size, "s", 160, "max size of output")
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flag.StringVar(&host, "h", initializers.GetEnv("HOST", "127.0.0.1"), "http host")
flag.UintVar(&port, "p", initializers.GetEnvUint("PORT", 7123), "http port")
flag.Parse()
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logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir, "outputsize", size)
ctx := context.Background()
pfp := path.Join(scriptDir, "pp.csv")
cfg := engine.Config{
Root: "root",
OutputSize: uint32(size),
FlagCount: uint32(16),
}
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if engineDebug {
cfg.EngineDebug = true
}
menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
rs, err := menuStorageService.GetResource(ctx)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
err = menuStorageService.EnsureDbDir()
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
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userdataStore, err := menuStorageService.GetUserdataDb(ctx)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
defer userdataStore.Close()
dbResource, ok := rs.(*resource.DbResource)
if !ok {
os.Exit(1)
}
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lhs, err := handlers.NewLocalHandlerService(pfp, true, dbResource, cfg, rs)
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lhs.SetDataStore(&userdataStore)
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if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
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}
hl, err := lhs.GetHandler()
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
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stateStore, err := menuStorageService.GetStateStore(ctx)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
defer stateStore.Close()
rp := &httpserver.DefaultRequestParser{}
bsh := handlers.NewBaseSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl)
sh := httpserver.ToSessionHandler(bsh)
s := &http.Server{
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Addr: fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
Handler: sh,
}
s.RegisterOnShutdown(sh.Shutdown)
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)
}
}