package cmd

import (
	"errors"
	// "fmt"
	"io"

	"cosmossdk.io/log"
	confixcmd "cosmossdk.io/tools/confix/cmd"
	dbm "github.com/cosmos/cosmos-db"
	"github.com/cosmos/cosmos-sdk/client"
	"github.com/cosmos/cosmos-sdk/client/debug"
	"github.com/cosmos/cosmos-sdk/client/flags"
	"github.com/cosmos/cosmos-sdk/client/keys"
	"github.com/cosmos/cosmos-sdk/client/pruning"
	"github.com/cosmos/cosmos-sdk/client/rpc"
	"github.com/cosmos/cosmos-sdk/client/snapshot"
	"github.com/cosmos/cosmos-sdk/server"
	servertypes "github.com/cosmos/cosmos-sdk/server/types"
	"github.com/cosmos/cosmos-sdk/types/module"
	authcmd "github.com/cosmos/cosmos-sdk/x/auth/client/cli"
	"github.com/cosmos/cosmos-sdk/x/crisis"
	genutilcli "github.com/cosmos/cosmos-sdk/x/genutil/client/cli"
	"github.com/spf13/cast"
	"github.com/spf13/cobra"
	"github.com/spf13/viper"

	"github.com/onomyprotocol/onomy/app"
)

func initRootCmd(
	rootCmd *cobra.Command,
	basicManager module.BasicManager,
	txConfig client.TxConfig,
) {
	rootCmd.AddCommand(
		genutilcli.InitCmd(basicManager, app.DefaultNodeHome),
		NewTestnetCmd(addModuleInitFlags),
		debug.Cmd(),
		confixcmd.ConfigCommand(),
		pruning.Cmd(newApp, app.DefaultNodeHome),
		snapshot.Cmd(newApp),
	)

	server.AddCommands(rootCmd, app.DefaultNodeHome, newApp, appExport, addModuleInitFlags)

	// add keybase, auxiliary RPC, query, genesis, and tx child commands
	rootCmd.AddCommand(
		server.StatusCommand(),
		genesisCommand(txConfig, basicManager),
		queryCommand(basicManager),
		txCommand(basicManager),
		keys.Commands(),
	)
}

func addModuleInitFlags(startCmd *cobra.Command) {
	crisis.AddModuleInitFlags(startCmd)
}

// genesisCommand builds genesis-related `reserved genesis` command. Users may provide application specific commands as a parameter
func genesisCommand(txConfig client.TxConfig, basicManager module.BasicManager, cmds ...*cobra.Command) *cobra.Command {
	// fmt.Println(basicManager["genutil"] == nil)
	cmd := genutilcli.Commands(txConfig, basicManager, app.DefaultNodeHome)

	for _, subCmd := range cmds {
		cmd.AddCommand(subCmd)
	}
	return cmd
}

func queryCommand(basicManager module.BasicManager) *cobra.Command {
	cmd := &cobra.Command{
		Use:                        "query",
		Aliases:                    []string{"q"},
		Short:                      "Querying subcommands",
		DisableFlagParsing:         false,
		SuggestionsMinimumDistance: 2,
		RunE:                       client.ValidateCmd,
	}

	cmd.AddCommand(
		rpc.QueryEventForTxCmd(),
		rpc.ValidatorCommand(),
		server.QueryBlockCmd(),
		authcmd.QueryTxsByEventsCmd(),
		server.QueryBlocksCmd(),
		authcmd.QueryTxCmd(),
		server.QueryBlockResultsCmd(),
	)
	cmd.PersistentFlags().String(flags.FlagChainID, "", "The network chain ID")
	basicManager.AddQueryCommands(cmd)

	return cmd
}

func txCommand(basicManager module.BasicManager) *cobra.Command {
	cmd := &cobra.Command{
		Use:                        "tx",
		Short:                      "Transactions subcommands",
		DisableFlagParsing:         true,
		SuggestionsMinimumDistance: 2,
		RunE:                       client.ValidateCmd,
	}

	cmd.AddCommand(
		authcmd.GetSignCommand(),
		authcmd.GetSignBatchCommand(),
		authcmd.GetMultiSignCommand(),
		authcmd.GetMultiSignBatchCmd(),
		authcmd.GetValidateSignaturesCommand(),
		flags.LineBreak,
		authcmd.GetBroadcastCommand(),
		authcmd.GetEncodeCommand(),
		authcmd.GetDecodeCommand(),
	)

	basicManager.AddTxCommands(cmd)

	cmd.PersistentFlags().String(flags.FlagChainID, "", "The network chain ID")

	return cmd
}

// newApp creates the application
func newApp(
	logger log.Logger,
	db dbm.DB,
	traceStore io.Writer,
	appOpts servertypes.AppOptions,
) servertypes.Application {
	baseappOptions := server.DefaultBaseappOptions(appOpts)

	skipUpgradeHeights := make(map[int64]bool)
	for _, h := range cast.ToIntSlice(appOpts.Get(server.FlagUnsafeSkipUpgrades)) {
		skipUpgradeHeights[int64(h)] = true
	}

	app := app.NewOnomyApp(
		logger,
		db,
		traceStore,
		true,
		skipUpgradeHeights,
		cast.ToString(appOpts.Get(flags.FlagHome)),
		appOpts,
		baseappOptions...,
	)

	RegisterInterfacesICSProvider(app.InterfaceRegistry())
	return app
}

// appExport creates a new app (optionally at a given height) and exports state.
func appExport(
	logger log.Logger,
	db dbm.DB,
	traceStore io.Writer,
	height int64,
	forZeroHeight bool,
	jailAllowedAddrs []string,
	appOpts servertypes.AppOptions,
	modulesToExport []string,
) (servertypes.ExportedApp, error) {
	var (
		bApp *app.OnomyApp
	)

	// this check is necessary as we use the flag in x/upgrade.
	// we can exit more gracefully by checking the flag here.
	homePath, ok := appOpts.Get(flags.FlagHome).(string)
	if !ok || homePath == "" {
		return servertypes.ExportedApp{}, errors.New("application home not set")
	}

	viperAppOpts, ok := appOpts.(*viper.Viper)
	if !ok {
		return servertypes.ExportedApp{}, errors.New("appOpts is not viper.Viper")
	}

	// overwrite the FlagInvCheckPeriod
	viperAppOpts.Set(server.FlagInvCheckPeriod, 1)
	appOpts = viperAppOpts

	var loadLatest bool
	if height == -1 {
		loadLatest = true
	}

	bApp = app.NewOnomyApp(
		logger,
		db,
		traceStore,
		loadLatest,
		map[int64]bool{},
		homePath,
		appOpts,
	)

	if height != -1 {
		if err := bApp.LoadHeight(height); err != nil {
			return servertypes.ExportedApp{}, err
		}
	}

	return bApp.ExportAppStateAndValidators(forZeroHeight, jailAllowedAddrs, modulesToExport)
}
