package apemanager

import (
	"fmt"

	internalclient "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/client"
	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/commonflags"
	"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-cli/internal/key"
	commonCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common"
	apeCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common/ape"
	apeSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ape"
	client_sdk "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
	"github.com/spf13/cobra"
)

var addCmd = &cobra.Command{
	Use:   "add",
	Short: "Add rule chain for a target",
	Run:   add,
	PersistentPreRun: func(cmd *cobra.Command, _ []string) {
		commonflags.Bind(cmd)
	},
}

func parseTarget(cmd *cobra.Command) (ct apeSDK.ChainTarget) {
	t := apeCmd.ParseTarget(cmd)

	ct.Name = t.Name

	switch t.Type {
	case engine.Namespace:
		ct.TargetType = apeSDK.TargetTypeNamespace
	case engine.Container:
		ct.TargetType = apeSDK.TargetTypeContainer
	case engine.User:
		ct.TargetType = apeSDK.TargetTypeUser
	case engine.Group:
		ct.TargetType = apeSDK.TargetTypeGroup
	default:
		commonCmd.ExitOnErr(cmd, "conversion error: %w", fmt.Errorf("unknown type '%c'", t.Type))
	}
	return ct
}

func parseChain(cmd *cobra.Command) apeSDK.Chain {
	c := apeCmd.ParseChain(cmd)
	serialized := c.Bytes()
	return apeSDK.Chain{
		Raw: serialized,
	}
}

func add(cmd *cobra.Command, _ []string) {
	c := parseChain(cmd)

	target := parseTarget(cmd)

	key := key.Get(cmd)
	cli := internalclient.GetSDKClientByFlag(cmd, key, commonflags.RPC)

	res, err := cli.APEManagerAddChain(cmd.Context(), client_sdk.PrmAPEManagerAddChain{
		ChainTarget: target,
		Chain:       c,
	})

	commonCmd.ExitOnErr(cmd, "add chain error: %w", err)

	cmd.Println("Rule has been added.")
	cmd.Println("Chain ID: ", string(res.ChainID))
}

func initAddCmd() {
	commonflags.Init(addCmd)

	ff := addCmd.Flags()
	ff.StringArray(apeCmd.RuleFlag, []string{}, apeCmd.RuleFlagDesc)
	ff.String(apeCmd.PathFlag, "", apeCmd.PathFlagDesc)
	ff.String(apeCmd.ChainIDFlag, "", apeCmd.ChainIDFlagDesc)
	ff.String(apeCmd.TargetNameFlag, "", apeCmd.TargetNameFlagDesc)
	ff.String(apeCmd.TargetTypeFlag, "", apeCmd.TargetTypeFlagDesc)
	_ = addCmd.MarkFlagRequired(apeCmd.TargetTypeFlag)
	ff.Bool(apeCmd.ChainIDHexFlag, false, apeCmd.ChainIDHexFlagDesc)

	addCmd.MarkFlagsMutuallyExclusive(apeCmd.PathFlag, apeCmd.RuleFlag)
}