cosmos-sdk/examples/basecoin/x/cool/handler.go

63 lines
1.6 KiB
Go

package cool
import (
"fmt"
"reflect"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/bank"
)
// This is just an example to demonstrate a functional custom module
// with full feature set functionality.
//
// /$$$$$$$ /$$$$$$ /$$$$$$ /$$
// /$$_____/ /$$__ $$ /$$__ $$| $$
//| $$ | $$ \ $$| $$ \ $$| $$
//| $$ | $$ | $$| $$ | $$| $$
//| $$$$$$$| $$$$$$/| $$$$$$/| $$$$$$$
// \_______/ \______/ \______/ |______/
// Handle all "coolmodule" type objects
func NewHandler(ck bank.CoinKeeper, cm Mapper) sdk.Handler {
return func(ctx sdk.Context, msg sdk.Msg) sdk.Result {
switch msg := msg.(type) {
case SetTrendMsg:
return handleSetTrendMsg(ctx, cm, msg)
case QuizMsg:
return handleQuizMsg(ctx, ck, cm, msg)
default:
errMsg := fmt.Sprintf("Unrecognized cool Msg type: %v", reflect.TypeOf(msg).Name())
return sdk.ErrUnknownRequest(errMsg).Result()
}
}
}
// Handle CoolMsg This is the engine of your module
func handleSetTrendMsg(ctx sdk.Context, cm Mapper, msg SetTrendMsg) sdk.Result {
cm.SetTrend(ctx, msg.Cool)
return sdk.Result{}
}
// Handle CoolMsg This is the engine of your module
func handleQuizMsg(ctx sdk.Context, ck bank.CoinKeeper, cm Mapper, msg QuizMsg) sdk.Result {
whatsCool := cm.GetCool(ctx)
// set default if nothing is set
//if whatsCool == "" {
//cm.SetTrend(ctx, "icecold")
//}
if msg.CoolAnswer == whatsCool {
bonusCoins := sdk.Coins{{whatsCool, 69}}
_, err := ck.AddCoins(ctx, msg.Sender, bonusCoins)
if err != nil {
return err.Result()
}
}
return sdk.Result{}
}