package testsuite

import (
	"bytes"
	"errors"
	"fmt"

	abcicli "github.com/tendermint/tendermint/abci/client"
	"github.com/tendermint/tendermint/abci/types"
	tmrand "github.com/tendermint/tendermint/libs/rand"
)

func InitChain(client abcicli.Client) error {
	total := 10
	vals := make([]types.ValidatorUpdate, total)
	for i := 0; i < total; i++ {
		pubkey := tmrand.Bytes(33)
		power := tmrand.Int()
		vals[i] = types.UpdateValidator(pubkey, int64(power), "")
	}
	_, err := client.InitChainSync(types.RequestInitChain{
		Validators: vals,
	})
	if err != nil {
		fmt.Printf("Failed test: InitChain - %v\n", err)
		return err
	}
	fmt.Println("Passed test: InitChain")
	return nil
}

func Commit(client abcicli.Client, hashExp []byte) error {
	res, err := client.CommitSync()
	data := res.Data
	if err != nil {
		fmt.Println("Failed test: Commit")
		fmt.Printf("error while committing: %v\n", err)
		return err
	}
	if !bytes.Equal(data, hashExp) {
		fmt.Println("Failed test: Commit")
		fmt.Printf("Commit hash was unexpected. Got %X expected %X\n", data, hashExp)
		return errors.New("commitTx failed")
	}
	fmt.Println("Passed test: Commit")
	return nil
}

func DeliverTx(client abcicli.Client, txBytes []byte, codeExp uint32, dataExp []byte) error {
	res, _ := client.DeliverTxSync(types.RequestDeliverTx{Tx: txBytes})
	code, data, log := res.Code, res.Data, res.Log
	if code != codeExp {
		fmt.Println("Failed test: DeliverTx")
		fmt.Printf("DeliverTx response code was unexpected. Got %v expected %v. Log: %v\n",
			code, codeExp, log)
		return errors.New("deliverTx error")
	}
	if !bytes.Equal(data, dataExp) {
		fmt.Println("Failed test: DeliverTx")
		fmt.Printf("DeliverTx response data was unexpected. Got %X expected %X\n",
			data, dataExp)
		return errors.New("deliverTx error")
	}
	fmt.Println("Passed test: DeliverTx")
	return nil
}

func PrepareProposal(client abcicli.Client, txBytes [][]byte, txExpected [][]byte, dataExp []byte) error {
	res, _ := client.PrepareProposalSync(types.RequestPrepareProposal{Txs: txBytes})
	for i, tx := range res.Txs {
		if !bytes.Equal(tx, txExpected[i]) {
			fmt.Println("Failed test: PrepareProposal")
			fmt.Printf("PrepareProposal transaction was unexpected. Got %x expected %x.",
				tx, txExpected[i])
			return errors.New("PrepareProposal error")
		}
	}
	fmt.Println("Passed test: PrepareProposal")
	return nil
}

func ProcessProposal(client abcicli.Client, txBytes [][]byte, statusExp types.ResponseProcessProposal_ProposalStatus) error {
	res, _ := client.ProcessProposalSync(types.RequestProcessProposal{Txs: txBytes})
	if res.Status != statusExp {
		fmt.Println("Failed test: ProcessProposal")
		fmt.Printf("ProcessProposal response status was unexpected. Got %v expected %v.",
			res.Status, statusExp)
		return errors.New("ProcessProposal error")
	}
	fmt.Println("Passed test: ProcessProposal")
	return nil
}

func CheckTx(client abcicli.Client, txBytes []byte, codeExp uint32, dataExp []byte) error {
	res, _ := client.CheckTxSync(types.RequestCheckTx{Tx: txBytes})
	code, data, log := res.Code, res.Data, res.Log
	if code != codeExp {
		fmt.Println("Failed test: CheckTx")
		fmt.Printf("CheckTx response code was unexpected. Got %v expected %v. Log: %v\n",
			code, codeExp, log)
		return errors.New("checkTx")
	}
	if !bytes.Equal(data, dataExp) {
		fmt.Println("Failed test: CheckTx")
		fmt.Printf("CheckTx response data was unexpected. Got %X expected %X\n",
			data, dataExp)
		return errors.New("checkTx")
	}
	fmt.Println("Passed test: CheckTx")
	return nil
}