package main import ( "strings" "time" "github.com/grassrootseconomics/cic-chain-events/internal/store" "github.com/grassrootseconomics/cic-chain-events/pkg/fetch" "github.com/jackc/pgx/v5" "github.com/knadh/goyesql/v2" "github.com/knadh/koanf" "github.com/knadh/koanf/parsers/toml" "github.com/knadh/koanf/providers/env" "github.com/knadh/koanf/providers/file" "github.com/nats-io/nats.go" "github.com/zerodha/logf" ) func initLogger(debug bool) logf.Logger { loggOpts := logf.Opts{ EnableColor: true, } if debug { loggOpts.Level = logf.DebugLevel } return logf.New(loggOpts) } func initConfig(configFilePath string) *koanf.Koanf { var ( ko = koanf.New(".") ) confFile := file.Provider(configFilePath) if err := ko.Load(confFile, toml.Parser()); err != nil { lo.Fatal("could not load config file", "error", err) } if err := ko.Load(env.Provider("", ".", func(s string) string { return strings.ReplaceAll(strings.ToLower( strings.TrimPrefix(s, "")), "_", ".") }), nil); err != nil { lo.Fatal("could not override config from env vars", "error", err) } return ko } func initQueries(queriesPath string) goyesql.Queries { queries, err := goyesql.ParseFile(queriesPath) if err != nil { lo.Fatal("could not load queries file", "error", err) } return queries } func initPgStore() (store.Store[pgx.Rows], error) { pgStore, err := store.NewPostgresStore(store.PostgresStoreOpts{ DSN: ko.MustString("postgres.dsn"), InitialLowerBound: uint64(ko.MustInt64("syncer.initial_lower_bound")), Logg: lo, Queries: q, }) if err != nil { return nil, err } return pgStore, nil } func initFetcher() fetch.Fetch { return fetch.NewGraphqlFetcher(fetch.GraphqlOpts{ GraphqlEndpoint: ko.MustString("chain.graphql_endpoint"), }) } func initJetStream() (nats.JetStreamContext, error) { natsConn, err := nats.Connect(ko.MustString("jetstream.endpoint")) if err != nil { return nil, err } js, err := natsConn.JetStream() if err != nil { return nil, err } // Bootstrap stream if it does not exist stream, _ := js.StreamInfo(ko.MustString("jetstream.stream_name")) if stream == nil { lo.Info("jetstream: bootstrapping stream") _, err = js.AddStream(&nats.StreamConfig{ Name: ko.MustString("jetstream.stream_name"), MaxAge: time.Duration(ko.MustInt("jetstream.persist_duration_hours")) * time.Hour, Storage: nats.FileStorage, Subjects: ko.MustStrings("jetstream.stream_subjects"), Duplicates: time.Duration(ko.MustInt("jetstream.dedup_duration_hours")) * time.Hour, }) if err != nil { return nil, err } } return js, nil }