package inspect

import (
	"fmt"
	"os"
	"path/filepath"

	"github.com/exchain/go-exchain/op-deployer/pkg/deployer/pipeline"
	"github.com/exchain/go-exchain/op-deployer/pkg/deployer/standard"
	"github.com/exchain/go-exchain/op-deployer/pkg/deployer/state"
	"github.com/exchain/go-exchain/op-service/ioutil"
	"github.com/exchain/go-exchain/op-service/jsonutil"
	"github.com/ethereum/go-ethereum/common"

	"github.com/ethereum-optimism/superchain-registry/superchain"

	"github.com/urfave/cli/v2"
)

func SuperchainRegistryCLI(cliCtx *cli.Context) error {
	cfg, err := readConfig(cliCtx)
	if err != nil {
		return err
	}

	globalIntent, err := pipeline.ReadIntent(cfg.Workdir)
	if err != nil {
		return fmt.Errorf("failed to read intent: %w", err)
	}

	if err := globalIntent.Check(); err != nil {
		return fmt.Errorf("intent check failed: %w", err)
	}

	envVars := map[string]string{}
	envVars["SCR_CHAIN_NAME"] = ""
	envVars["SCR_CHAIN_SHORT_NAME"] = ""
	envVars["SCR_PUBLIC_RPC"] = ""
	envVars["SCR_SEQUENCER_RPC"] = ""
	envVars["SCR_EXPLORER"] = ""
	envVars["SCR_STANDARD_CHAIN_CANDIDATE"] = "false"

	creationCommit, err := standard.CommitForDeployTag(globalIntent.L2ContractsLocator.Tag)
	if err != nil {
		return fmt.Errorf("failed to get commit for deploy tag: %w", err)
	}
	envVars["SCR_GENESIS_CREATION_COMMIT"] = creationCommit

	l1ChainName, err := standard.ChainNameFor(globalIntent.L1ChainID)
	if err != nil {
		return fmt.Errorf("failed to get l1 chain name: %w", err)
	}
	envVars["SCR_SUPERCHAIN_TARGET"] = l1ChainName

	globalState, err := pipeline.ReadState(cfg.Workdir)
	if err != nil {
		return fmt.Errorf("failed to read state: %w", err)
	}

	genesis, rollup, err := GenesisAndRollup(globalState, cfg.ChainID)
	if err != nil {
		return fmt.Errorf("failed to generate genesis and rollup: %w", err)
	}
	genesisFilepath := filepath.Join(cfg.Workdir, "genesis.json")
	if err := jsonutil.WriteJSON(genesis, ioutil.ToStdOutOrFileOrNoop(genesisFilepath, 0o666)); err != nil {
		return fmt.Errorf("failed to write genesis: %w", err)
	}
	rollupFilepath := filepath.Join(cfg.Workdir, "rollup.json")
	if err := jsonutil.WriteJSON(rollup, ioutil.ToStdOutOrFileOrNoop(rollupFilepath, 0o666)); err != nil {
		return fmt.Errorf("failed to write rollup: %w", err)
	}

	deployConfig, err := DeployConfig(globalState, cfg.ChainID)
	if err != nil {
		return fmt.Errorf("failed to generate deploy config: %w", err)
	}
	deployConfigFilepath := filepath.Join(cfg.Workdir, "deploy-config.json")
	if err := jsonutil.WriteJSON(deployConfig, ioutil.ToStdOutOrFileOrNoop(deployConfigFilepath, 0o666)); err != nil {
		return fmt.Errorf("failed to write rollup: %w", err)
	}

	l1Contracts, err := L1(globalState, cfg.ChainID)
	if err != nil {
		return fmt.Errorf("failed to generate l1 contracts: %w", err)
	}

	addressList, err := createAddressList(l1Contracts, globalState.AppliedIntent, cfg.ChainID)
	if err != nil {
		return fmt.Errorf("failed to create address list: %w", err)
	}

	addressListFilepath := filepath.Join(cfg.Workdir, "addresses.json")
	if err := jsonutil.WriteJSON(addressList, ioutil.ToStdOutOrFileOrNoop(addressListFilepath, 0o666)); err != nil {
		return fmt.Errorf("failed to write address list: %w", err)
	}

	envVars["SCR_GENESIS"] = genesisFilepath
	envVars["SCR_ROLLUP_CONFIG"] = rollupFilepath
	envVars["SCR_DEPLOY_CONFIG"] = deployConfigFilepath
	envVars["SCR_DEPLOYMENTS_DIR"] = addressListFilepath

	envFilepath := filepath.Join(cfg.Workdir, "superchain-registry.env")
	err = writeEnvFile(envFilepath, envVars)
	if err != nil {
		return fmt.Errorf("failed to write .env file: %w", err)
	}

	fmt.Printf("---------------------------------------------------\n"+
		"Please populate any empty values in your .env file\n"+
		"before creating your pull-request to add this chain\n"+
		"to the superchain-registry repo.\n\n"+
		"  * %s\n"+
		"---------------------------------------------------\n", envFilepath,
	)

	return nil
}

func writeEnvFile(filepath string, envVars map[string]string) error {
	file, err := os.Create(filepath)
	if err != nil {
		return err
	}
	defer file.Close()

	for key, value := range envVars {
		_, err := file.WriteString(fmt.Sprintf("%s=\"%s\"\n", key, value))
		if err != nil {
			return err
		}
	}

	return nil
}

func createAddressList(l1Contracts *L1Contracts, appliedIntent *state.Intent, chainId common.Hash) (*superchain.AddressList, error) {
	chainIntent, err := appliedIntent.Chain(chainId)
	if err != nil {
		return nil, fmt.Errorf("failed to get applied chain intent: %w", err)
	}

	addressList := superchain.AddressList{
		// Roles
		Roles: superchain.Roles{
			Guardian:          superchain.Address(appliedIntent.SuperchainRoles.Guardian),
			SystemConfigOwner: superchain.Address(chainIntent.Roles.SystemConfigOwner),
			ProxyAdminOwner:   superchain.Address(chainIntent.Roles.L1ProxyAdminOwner),
			Challenger:        superchain.Address(chainIntent.Roles.Challenger),
			Proposer:          superchain.Address(chainIntent.Roles.Proposer),
			UnsafeBlockSigner: superchain.Address(chainIntent.Roles.UnsafeBlockSigner),
			BatchSubmitter:    superchain.Address(chainIntent.Roles.Batcher),
		},

		// Contracts
		AddressManager:                    superchain.Address(l1Contracts.OpChainDeployment.AddressManagerAddress),
		L1CrossDomainMessengerProxy:       superchain.Address(l1Contracts.OpChainDeployment.L1CrossDomainMessengerProxyAddress),
		L1ERC721BridgeProxy:               superchain.Address(l1Contracts.OpChainDeployment.L1ERC721BridgeProxyAddress),
		L1StandardBridgeProxy:             superchain.Address(l1Contracts.OpChainDeployment.L1StandardBridgeProxyAddress),
		OptimismMintableERC20FactoryProxy: superchain.Address(l1Contracts.OpChainDeployment.OptimismMintableERC20FactoryProxyAddress),
		OptimismPortalProxy:               superchain.Address(l1Contracts.OpChainDeployment.OptimismPortalProxyAddress),
		SystemConfigProxy:                 superchain.Address(l1Contracts.OpChainDeployment.SystemConfigProxyAddress),

		ProxyAdmin:       superchain.Address(l1Contracts.OpChainDeployment.ProxyAdminAddress),
		SuperchainConfig: superchain.Address(l1Contracts.SuperchainDeployment.SuperchainConfigProxyAddress),

		// Fault proof contracts
		AnchorStateRegistryProxy: superchain.Address(l1Contracts.OpChainDeployment.AnchorStateRegistryProxyAddress),
		DelayedWETHProxy:         superchain.Address(l1Contracts.OpChainDeployment.DelayedWETHPermissionedGameProxyAddress),
		DisputeGameFactoryProxy:  superchain.Address(l1Contracts.OpChainDeployment.DisputeGameFactoryProxyAddress),
		FaultDisputeGame:         superchain.Address(l1Contracts.OpChainDeployment.FaultDisputeGameAddress),
		MIPS:                     superchain.Address(l1Contracts.ImplementationsDeployment.MipsSingletonAddress),
		PermissionedDisputeGame:  superchain.Address(l1Contracts.OpChainDeployment.PermissionedDisputeGameAddress),
		PreimageOracle:           superchain.Address(l1Contracts.ImplementationsDeployment.PreimageOracleSingletonAddress),
	}

	return &addressList, nil
}
