ussd/cmd/main.go

202 lines
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package main
import (
"context"
"flag"
"fmt"
"os"
"path"
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"git.defalsify.org/vise.git/asm"
"git.defalsify.org/vise.git/db"
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fsdb "git.defalsify.org/vise.git/db/fs"
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gdbmdb "git.defalsify.org/vise.git/db/gdbm"
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"git.defalsify.org/vise.git/engine"
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"git.defalsify.org/vise.git/logging"
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"git.defalsify.org/vise.git/persist"
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"git.defalsify.org/vise.git/resource"
"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
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)
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var (
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logg = logging.NewVanilla()
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scriptDir = path.Join("services", "registration")
)
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func getParser(fp string, debug bool) (*asm.FlagParser, error) {
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flagParser := asm.NewFlagParser().WithDebug()
_, err := flagParser.Load(fp)
if err != nil {
return nil, err
}
return flagParser, nil
}
func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, pe *persist.Persister, userdataStore db.Db) (*ussd.Handlers, error) {
ussdHandlers, err := ussd.NewHandlers(appFlags, userdataStore)
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if err != nil {
return nil, err
}
ussdHandlers = ussdHandlers.WithPersister(pe)
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rs.AddLocalFunc("select_language", ussdHandlers.SetLanguage)
rs.AddLocalFunc("create_account", ussdHandlers.CreateAccount)
rs.AddLocalFunc("save_pin", ussdHandlers.SavePin)
rs.AddLocalFunc("verify_pin", ussdHandlers.VerifyPin)
rs.AddLocalFunc("check_identifier", ussdHandlers.CheckIdentifier)
rs.AddLocalFunc("check_account_status", ussdHandlers.CheckAccountStatus)
rs.AddLocalFunc("authorize_account", ussdHandlers.Authorize)
rs.AddLocalFunc("quit", ussdHandlers.Quit)
rs.AddLocalFunc("check_balance", ussdHandlers.CheckBalance)
rs.AddLocalFunc("validate_recipient", ussdHandlers.ValidateRecipient)
rs.AddLocalFunc("transaction_reset", ussdHandlers.TransactionReset)
rs.AddLocalFunc("max_amount", ussdHandlers.MaxAmount)
rs.AddLocalFunc("validate_amount", ussdHandlers.ValidateAmount)
rs.AddLocalFunc("reset_transaction_amount", ussdHandlers.ResetTransactionAmount)
rs.AddLocalFunc("get_recipient", ussdHandlers.GetRecipient)
rs.AddLocalFunc("get_sender", ussdHandlers.GetSender)
rs.AddLocalFunc("get_amount", ussdHandlers.GetAmount)
rs.AddLocalFunc("reset_incorrect", ussdHandlers.ResetIncorrectPin)
rs.AddLocalFunc("save_firstname", ussdHandlers.SaveFirstname)
rs.AddLocalFunc("save_familyname", ussdHandlers.SaveFamilyname)
rs.AddLocalFunc("save_gender", ussdHandlers.SaveGender)
rs.AddLocalFunc("save_location", ussdHandlers.SaveLocation)
rs.AddLocalFunc("save_yob", ussdHandlers.SaveYob)
rs.AddLocalFunc("save_offerings", ussdHandlers.SaveOfferings)
rs.AddLocalFunc("quit_with_balance", ussdHandlers.QuitWithBalance)
rs.AddLocalFunc("reset_account_authorized", ussdHandlers.ResetAccountAuthorized)
rs.AddLocalFunc("reset_allow_update", ussdHandlers.ResetAllowUpdate)
rs.AddLocalFunc("get_profile_info", ussdHandlers.GetProfileInfo)
rs.AddLocalFunc("verify_yob", ussdHandlers.VerifyYob)
rs.AddLocalFunc("reset_incorrect_date_format", ussdHandlers.ResetIncorrectYob)
rs.AddLocalFunc("set_reset_single_edit", ussdHandlers.SetResetSingleEdit)
rs.AddLocalFunc("initiate_transaction", ussdHandlers.InitiateTransaction)
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rs.AddLocalFunc("quit_with_help", ussdHandlers.QuitWithHelp)
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rs.AddLocalFunc("save_temporary_pin", ussdHandlers.SaveTemporaryPin)
rs.AddLocalFunc("confirm_pin_change", ussdHandlers.ConfirmPinChange)
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return ussdHandlers, nil
}
func ensureDbDir(dbDir string) error {
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err := os.MkdirAll(dbDir, 0700)
if err != nil {
return fmt.Errorf("state dir create exited with error: %v\n", err)
}
return nil
}
func getPersister(dbDir string, ctx context.Context) (*persist.Persister, error) {
err := ensureDbDir(dbDir)
if err != nil {
return nil, err
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}
store := gdbmdb.NewGdbmDb()
storeFile := path.Join(dbDir, "state.gdbm")
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store.Connect(ctx, storeFile)
pr := persist.NewPersister(store)
return pr, nil
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}
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func getUserdataDb(dbDir string, ctx context.Context) db.Db {
store := gdbmdb.NewGdbmDb()
storeFile := path.Join(dbDir, "userdata.gdbm")
store.Connect(ctx, storeFile)
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return store
}
func getResource(resourceDir string, ctx context.Context) (resource.Resource, error) {
store := fsdb.NewFsDb()
err := store.Connect(ctx, resourceDir)
if err != nil {
return nil, err
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}
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rfs := resource.NewDbResource(store)
return rfs, nil
}
func getEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) *engine.DefaultEngine {
en := engine.NewEngine(cfg, rs)
en = en.WithPersister(pr)
return en
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}
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func main() {
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var dbDir string
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var size uint
var sessionId string
var debug bool
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flag.StringVar(&sessionId, "session-id", "075xx2123", "session id")
flag.StringVar(&dbDir, "dbdir", ".state", "database dir to read from")
flag.BoolVar(&debug, "d", false, "use engine debug output")
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flag.UintVar(&size, "s", 160, "max size of output")
flag.Parse()
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logg.Infof("start command", "dbdir", dbDir, "outputsize", size)
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ctx := context.Background()
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ctx = context.WithValue(ctx, "SessionId", sessionId)
pfp := path.Join(scriptDir, "pp.csv")
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flagParser, err := getParser(pfp, true)
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if err != nil {
os.Exit(1)
}
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cfg := engine.Config{
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Root: "root",
SessionId: sessionId,
OutputSize: uint32(size),
FlagCount: uint32(16),
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}
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rs, err := getResource(scriptDir, ctx)
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if err != nil {
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fmt.Fprintf(os.Stderr, err.Error())
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os.Exit(1)
}
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pe, err := getPersister(dbDir, ctx)
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if err != nil {
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fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
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}
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store := getUserdataDb(dbDir, ctx)
if err != nil {
fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
}
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dbResource, ok := rs.(*resource.DbResource)
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if !ok {
fmt.Fprintf(os.Stderr, err.Error())
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os.Exit(1)
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}
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hl, err := getHandler(flagParser, dbResource, pe, store)
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if err != nil {
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fmt.Fprintf(os.Stderr, err.Error())
os.Exit(1)
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}
en := getEngine(cfg, rs, pe)
en = en.WithFirst(hl.Init)
if debug {
en = en.WithDebug(nil)
}
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_, err = en.Init(ctx)
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if err != nil {
fmt.Fprintf(os.Stderr, "engine init exited with error: %v\n", err)
os.Exit(1)
}
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err = engine.Loop(ctx, en, os.Stdin, os.Stdout)
if err != nil {
fmt.Fprintf(os.Stderr, "loop exited with error: %v\n", err)
os.Exit(1)
}
}