package keeper

import (
	"context"
	"errors"
	"fmt"
	"math/big"

	"colinear/x/colinearcore/types"

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

func (k msgServer) UnlockAllFunds(goCtx context.Context, msg *types.MsgUnlockAllFunds) (*types.MsgUnlockAllFundsResponse, error) {
	ctx := sdk.UnwrapSDKContext(goCtx)

	lockedUsers, ok := k.Keeper.GetLockedUsers(ctx)
	if !ok {
		return nil, errors.New("unable to get locked users")
	}
	lockedBalStr, ok := lockedUsers.Users[msg.Creator]
	if !ok {
		return nil, fmt.Errorf("no locked balance found for user %s", msg.Creator)
	} else {
		if lockedBalStr == "0" {
			return nil, fmt.Errorf("no CLR to unlock for user %s", msg.Creator)
		}
	}

	sendAmtBI := new(big.Int)
	sendAmtBI.SetString(lockedBalStr, 10)
	sendAmt := sdk.NewIntFromBigInt(sendAmtBI)

	sendCoins := sdk.NewCoins(sdk.NewCoin("uclr", sendAmt))

	if err := k.bank.SendCoinsFromModuleToAccount(ctx, types.ModuleName, sdk.AccAddress(msg.Creator), sendCoins); err != nil {
		return nil, fmt.Errorf("failed to send %s uCLR: %s", lockedBalStr, err)
	}

	delete(lockedUsers.Users, msg.Creator)
	k.Keeper.SetLockedUsers(ctx, lockedUsers)

	return &types.MsgUnlockAllFundsResponse{}, nil
}