package keeper_test

import (
	"bytes"
	"encoding/hex"
	"strconv"

	"github.com/tendermint/tendermint/crypto"
	"github.com/tendermint/tendermint/crypto/ed25519"

	sdk "github.com/cosmos/cosmos-sdk/types"
)

var (
	Addrs = createTestAddrs(500)
	PKs   = createTestPubKeys(500)

	addrDels = []sdk.AccAddress{
		Addrs[0],
		Addrs[1],
	}
	addrVals = []sdk.ValAddress{
		sdk.ValAddress(Addrs[2]),
		sdk.ValAddress(Addrs[3]),
		sdk.ValAddress(Addrs[4]),
		sdk.ValAddress(Addrs[5]),
		sdk.ValAddress(Addrs[6]),
	}
)

func createTestAddrs(numAddrs int) []sdk.AccAddress {
	var addresses []sdk.AccAddress
	var buffer bytes.Buffer

	// start at 100 so we can make up to 999 test addresses with valid test addresses
	for i := 100; i < (numAddrs + 100); i++ {
		numString := strconv.Itoa(i)
		buffer.WriteString("A58856F0FD53BF058B4909A21AEC019107BA6") //base address string

		buffer.WriteString(numString) //adding on final two digits to make addresses unique
		res, _ := sdk.AccAddressFromHex(buffer.String())
		bech := res.String()
		addresses = append(addresses, CreateTestAddr(buffer.String(), bech))
		buffer.Reset()
	}
	return addresses
}

// nolint: unparam
func createTestPubKeys(numPubKeys int) []crypto.PubKey {
	var publicKeys []crypto.PubKey
	var buffer bytes.Buffer

	//start at 10 to avoid changing 1 to 01, 2 to 02, etc
	for i := 100; i < (numPubKeys + 100); i++ {
		numString := strconv.Itoa(i)
		buffer.WriteString("0B485CFC0EECC619440448436F8FC9DF40566F2369E72400281454CB552AF") //base pubkey string
		buffer.WriteString(numString)                                                       //adding on final two digits to make pubkeys unique
		publicKeys = append(publicKeys, NewPubKey(buffer.String()))
		buffer.Reset()
	}

	return publicKeys
}

func NewPubKey(pk string) (res crypto.PubKey) {
	pkBytes, err := hex.DecodeString(pk)
	if err != nil {
		panic(err)
	}
	//res, err = crypto.PubKeyFromBytes(pkBytes)
	var pkEd ed25519.PubKeyEd25519
	copy(pkEd[:], pkBytes)
	return pkEd
}

// for incode address generation
func CreateTestAddr(addr string, bech string) sdk.AccAddress {
	res, err := sdk.AccAddressFromHex(addr)
	if err != nil {
		panic(err)
	}

	bechexpected := res.String()
	if bech != bechexpected {
		panic("Bech encoding doesn't match reference")
	}

	bechres, err := sdk.AccAddressFromBech32(bech)
	if err != nil {
		panic(err)
	}
	if !bytes.Equal(bechres, res) {
		panic("Bech decode and hex decode don't match")
	}

	return res
}