84 lines
1.8 KiB
Go
84 lines
1.8 KiB
Go
package main
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import (
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"context"
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"fmt"
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"github.com/georgysavva/scany/pgxscan"
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"github.com/hibiken/asynq"
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"github.com/jackc/pgx/v4"
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"github.com/lmittmann/w3"
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"github.com/rs/zerolog/log"
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"math/big"
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"strconv"
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)
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type tokenSyncer struct {
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app *App
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}
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type tokenCursor struct {
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CursorPos string `db:"cursor_pos"`
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}
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func newTokenSyncer(app *App) *tokenSyncer {
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return &tokenSyncer{
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app: app,
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}
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}
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func (s *tokenSyncer) ProcessTask(ctx context.Context, t *asynq.Task) error {
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var lastCursor tokenCursor
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if err := pgxscan.Get(ctx, s.app.db, &lastCursor, s.app.queries["cursor-pos"], 3); err != nil {
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return err
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}
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latestChainIdx, err := s.app.cicnetClient.EntryCount(ctx)
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if err != nil {
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return err
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}
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lastCursorPos, err := strconv.ParseInt(lastCursor.CursorPos, 10, 64)
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if err != nil {
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return err
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}
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latestChainPos := latestChainIdx.Int64() - 1
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log.Info().Msgf("=> %d tokens synced", lastCursorPos)
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if latestChainPos >= lastCursorPos {
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batch := &pgx.Batch{}
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for i := lastCursorPos; i <= latestChainPos; i++ {
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nextTokenAddress, err := s.app.cicnetClient.AddressAtIndex(ctx, big.NewInt(i))
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if err != nil {
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return err
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}
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tokenInfo, err := s.app.cicnetClient.TokenInfo(ctx, w3.A(fmt.Sprintf("0x%s", nextTokenAddress)))
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if err != nil {
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return err
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}
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batch.Queue(s.app.queries["insert-token-data"], nextTokenAddress, tokenInfo.Name, tokenInfo.Symbol, tokenInfo.Decimals.Int64())
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}
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res := s.app.db.SendBatch(ctx, batch)
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for i := 0; i < batch.Len(); i++ {
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_, err := res.Exec()
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if err != nil {
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return err
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}
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}
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err := res.Close()
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if err != nil {
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return err
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}
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_, err = s.app.db.Exec(ctx, s.app.queries["update-cursor"], strconv.FormatInt(latestChainIdx.Int64(), 10), 3)
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if err != nil {
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return err
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}
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}
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return nil
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}
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