package vat_slip

import (
	"fmt"

	log "github.com/sirupsen/logrus"

	"github.com/vulcanize/vulcanizedb/pkg/core"
	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
)

type VatSlipRepository struct {
	db *postgres.DB
}

func (repository VatSlipRepository) Create(headerID int64, models []interface{}) error {
	tx, dBaseErr := repository.db.Begin()
	if dBaseErr != nil {
		return dBaseErr
	}
	for _, model := range models {
		vatSlip, ok := model.(VatSlipModel)
		if !ok {
			rollbackErr := tx.Rollback()
			if rollbackErr != nil {
				log.Error("failed to rollback ", rollbackErr)
			}
			return fmt.Errorf("model of type %T, not %T", model, VatSlipModel{})
		}

		ilkID, ilkErr := shared.GetOrCreateIlkInTransaction(vatSlip.Ilk, tx)
		if ilkErr != nil {
			rollbackErr := tx.Rollback()
			if rollbackErr != nil {
				log.Error("failed to rollback ", rollbackErr)
			}
			return ilkErr
		}

		_, execErr := tx.Exec(
			`INSERT into maker.vat_slip (header_id, ilk, guy, rad, tx_idx, log_idx, raw_log)
			VALUES($1, $2, $3, $4::NUMERIC, $5, $6, $7)
			ON CONFLICT (header_id, tx_idx, log_idx) DO UPDATE SET ilk = $2, guy = $3, rad = $4, raw_log = $7;`,
			headerID, ilkID, vatSlip.Guy, vatSlip.Rad, vatSlip.TransactionIndex, vatSlip.LogIndex, vatSlip.Raw,
		)
		if execErr != nil {
			rollbackErr := tx.Rollback()
			if rollbackErr != nil {
				log.Error("failed to rollback ", rollbackErr)
			}
			return execErr
		}
	}

	checkHeaderErr := shared.MarkHeaderCheckedInTransaction(headerID, tx, constants.VatSlipChecked)
	if checkHeaderErr != nil {
		rollbackErr := tx.Rollback()
		if rollbackErr != nil {
			log.Error("failed to rollback ", rollbackErr)
		}
		return checkHeaderErr
	}

	return tx.Commit()
}

func (repository VatSlipRepository) MarkHeaderChecked(headerID int64) error {
	return shared.MarkHeaderChecked(headerID, repository.db, constants.VatSlipChecked)
}

func (repository VatSlipRepository) MissingHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
	return shared.MissingHeaders(startingBlockNumber, endingBlockNumber, repository.db, constants.VatSlipChecked)
}

func (repository VatSlipRepository) RecheckHeaders(startingBlockNumber, endingBlockNumber int64) ([]core.Header, error) {
	return shared.RecheckHeaders(startingBlockNumber, endingBlockNumber, repository.db, constants.VatSlipChecked)
}

func (repository *VatSlipRepository) SetDB(db *postgres.DB) {
	repository.db = db
}