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feat: Add fixed fee for creating a new credit class (#351)
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| Original file line number | Diff line number | Diff line change |
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@@ -190,3 +190,6 @@ build/ | |
| /proto-tools-stamp | ||
| /tools-stamp | ||
| dist/ | ||
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| # pre-commit | ||
| .pre-commit-config.yaml | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| syntax = "proto3"; | ||
| package cosmos.base.v1beta1; | ||
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| import "gogoproto/gogo.proto"; | ||
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| option go_package = "github.com/cosmos/cosmos-sdk/types"; | ||
| option (gogoproto.goproto_stringer_all) = false; | ||
| option (gogoproto.stringer_all) = false; | ||
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| // Coin defines a token with a denomination and an amount. | ||
| // | ||
| // NOTE: The amount field is an Int which implements the custom method | ||
| // signatures required by gogoproto. | ||
| message Coin { | ||
| option (gogoproto.equal) = true; | ||
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| string denom = 1; | ||
| string amount = 2 [(gogoproto.customtype) = "Int", (gogoproto.nullable) = false]; | ||
| } | ||
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| // DecCoin defines a token with a denomination and a decimal amount. | ||
| // | ||
| // NOTE: The amount field is an Dec which implements the custom method | ||
| // signatures required by gogoproto. | ||
| message DecCoin { | ||
| option (gogoproto.equal) = true; | ||
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| string denom = 1; | ||
| string amount = 2 [(gogoproto.customtype) = "Dec", (gogoproto.nullable) = false]; | ||
| } | ||
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| // IntProto defines a Protobuf wrapper around an Int object. | ||
| message IntProto { | ||
| string int = 1 [(gogoproto.customtype) = "Int", (gogoproto.nullable) = false]; | ||
| } | ||
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| // DecProto defines a Protobuf wrapper around a Dec object. | ||
| message DecProto { | ||
| string dec = 1 [(gogoproto.customtype) = "Dec", (gogoproto.nullable) = false]; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package ecocredit | ||
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| import ( | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| ) | ||
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| type BankKeeper interface { | ||
| BurnCoins(ctx sdk.Context, moduleName string, amt sdk.Coins) error | ||
| SendCoinsFromAccountToModule(ctx sdk.Context, senderAddr sdk.AccAddress, recipientModule string, amt sdk.Coins) error | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| package keeper | ||
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| import ( | ||
| sdk "github.com/cosmos/cosmos-sdk/types" | ||
| paramtypes "github.com/cosmos/cosmos-sdk/x/params/types" | ||
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| "github.com/regen-network/regen-ledger/x/ecocredit" | ||
| ) | ||
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| // Keeper for ecocredit module holding parameter subspace | ||
| type Keeper struct { | ||
| paramSpace paramtypes.Subspace | ||
| bankKeeper ecocredit.BankKeeper | ||
| } | ||
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| func NewKeeper(ps paramtypes.Subspace, bankKeeper ecocredit.BankKeeper) Keeper { | ||
| if !ps.HasKeyTable() { | ||
| ps = ps.WithKeyTable(ecocredit.ParamKeyTable()) | ||
| } | ||
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| return Keeper { | ||
| paramSpace: ps, | ||
| bankKeeper: bankKeeper, | ||
| } | ||
| } | ||
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| func (k Keeper) SetParams(ctx sdk.Context, params ecocredit.Params) { | ||
| k.paramSpace.SetParamSet(ctx, ¶ms) | ||
| } | ||
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| func (k Keeper) InitGenesis(ctx sdk.Context, genesisState *ecocredit.GenesisState) { | ||
| k.SetParams(ctx, genesisState.Params) | ||
| } | ||
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| func (k Keeper) ExportGenesis(ctx sdk.Context) *ecocredit.GenesisState { | ||
| // Get Params from the store and put them in the genesis state | ||
| var params ecocredit.Params | ||
| k.paramSpace.GetParamSet(ctx, ¶ms) | ||
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| return &ecocredit.GenesisState{ | ||
| Params: params, | ||
| } | ||
| } | ||
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| func (k Keeper) GetCreditClassFee(ctx sdk.Context) sdk.Coins { | ||
| var params ecocredit.Params | ||
| k.paramSpace.GetParamSet(ctx, ¶ms) | ||
| return params.CreditClassFee | ||
| } | ||
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| func (k Keeper) ChargeCreditClassFee(ctx sdk.Context, designerAddr sdk.AccAddress) error { | ||
| creditClassFee := k.GetCreditClassFee(ctx) | ||
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| // Move the fee to the ecocredit module's account | ||
| err := k.bankKeeper.SendCoinsFromAccountToModule(ctx, designerAddr, "ecocredit", creditClassFee) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| // Burn the coins | ||
| // TODO: Update this implementation based on the discussion at | ||
| // https://github.com/regen-network/regen-ledger/issues/351 | ||
| err = k.bankKeeper.BurnCoins(ctx, "ecocredit", creditClassFee) | ||
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| return nil | ||
| } |
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