/
handler.go
141 lines (115 loc) · 4.17 KB
/
handler.go
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package enterprise
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
"github.com/unification-com/mainchain/x/enterprise/internal/types"
"strconv"
)
// NewHandler returns a handler for "enterprise" type messages.
func NewHandler(keeper Keeper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) (*sdk.Result, error) {
switch msg := msg.(type) {
case MsgPurchaseUnd:
return handleMsgPurchaseUnd(ctx, keeper, msg)
case MsgProcessUndPurchaseOrder:
return handleMsgProcessPurchaseUnd(ctx, keeper, msg)
case types.MsgWhitelistAddress:
return handleMsgWhitelistAddress(ctx, keeper, msg)
default:
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnknownRequest, "unrecognized %s message type: %T", ModuleName, msg)
}
}
}
func handleMsgPurchaseUnd(ctx sdk.Context, k Keeper, msg MsgPurchaseUnd) (*sdk.Result, error) {
if msg.Amount.Denom != k.GetParamDenom(ctx) {
return nil, sdkerrors.Wrap(ErrInvalidDenomination, fmt.Sprintf("denomination must be %s", k.GetParamDenom(ctx)))
}
if !k.AddressIsWhitelisted(ctx, msg.Purchaser) {
return nil, sdkerrors.Wrap(ErrNotAuthorisedToRaisePO, fmt.Sprintf("%s is not whitelisted to raise purchase orders", msg.Purchaser))
}
purchaseOrderID, err := k.RaiseNewPurchaseOrder(ctx, msg.Purchaser, msg.Amount)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, ModuleName),
),
)
ctx.EventManager().EmitEvent(
sdk.NewEvent(
EventTypeRaisePurchaseOrder,
sdk.NewAttribute(AttributeKeyPurchaseOrderID, strconv.FormatUint(purchaseOrderID, 10)),
sdk.NewAttribute(AttributeKeyPurchaser, msg.Purchaser.String()),
sdk.NewAttribute(AttributeKeyAmount, msg.Amount.String()),
),
)
return &sdk.Result{
Events: ctx.EventManager().Events(),
Data: GetPurchaseOrderIDBytes(purchaseOrderID),
}, nil
}
func handleMsgProcessPurchaseUnd(ctx sdk.Context, k Keeper, msg MsgProcessUndPurchaseOrder) (*sdk.Result, error) {
// check only authorised Enterprise account is signing
if !k.IsAuthorisedToDecide(ctx, msg.Signer) {
return nil, sdkerrors.Wrap(sdkerrors.ErrUnauthorized, "unauthorised signer processing purchase order")
}
if !ValidPurchaseOrderAcceptRejectStatus(msg.Decision) {
return nil, sdkerrors.Wrap(ErrInvalidDecision, "decision should be accept or reject")
}
err := k.ProcessPurchaseOrderDecision(ctx, msg.PurchaseOrderID, msg.Decision, msg.Signer)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, ModuleName),
),
)
ctx.EventManager().EmitEvent(
sdk.NewEvent(
EventTypeProcessPurchaseOrderDecision,
sdk.NewAttribute(AttributeKeyPurchaseOrderID, strconv.FormatUint(msg.PurchaseOrderID, 10)),
sdk.NewAttribute(AttributeKeySigner, msg.Signer.String()),
sdk.NewAttribute(AttributeKeyDecision, msg.Decision.String()),
),
)
retData := append(GetPurchaseOrderIDBytes(msg.PurchaseOrderID), []byte{byte(msg.Decision)}...)
return &sdk.Result{
Events: ctx.EventManager().Events(),
Data: retData,
}, nil
}
func handleMsgWhitelistAddress(ctx sdk.Context, k Keeper, msg types.MsgWhitelistAddress) (*sdk.Result, error) {
// check only authorised Enterprise account is adding/removing
if !k.IsAuthorisedToDecide(ctx, msg.Signer) {
return nil, sdkerrors.Wrap(sdkerrors.ErrUnauthorized, "unauthorised signer modifying whitelist")
}
if !ValidWhitelistAction(msg.Action) {
return nil, sdkerrors.Wrap(ErrInvalidDecision, "action should be add or remove")
}
err := k.ProcessWhitelistAction(ctx, msg.Address, msg.Action, msg.Signer)
if err != nil {
return nil, err
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, ModuleName),
),
)
ctx.EventManager().EmitEvent(
sdk.NewEvent(
EventTypeWhitelistAddress,
sdk.NewAttribute(AttributeWhitelistAddress, msg.Address.String()),
sdk.NewAttribute(AttributeKeySigner, msg.Signer.String()),
sdk.NewAttribute(AttributeKeyWhitelistAction, msg.Action.String()),
),
)
return &sdk.Result{
Events: ctx.EventManager().Events(),
}, nil
}