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msg_server_post_file.go
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/
msg_server_post_file.go
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package keeper
import (
"context"
"encoding/hex"
"encoding/json"
"fmt"
sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/jackalLabs/canine-chain/v4/x/storage/types"
)
func (k msgServer) PostFile(goCtx context.Context, msg *types.MsgPostFile) (*types.MsgPostFileResponse, error) {
ctx := sdk.UnwrapSDKContext(goCtx)
params := k.GetParams(ctx)
if !json.Valid([]byte(msg.Note)) {
return nil, sdkerrors.Wrapf(sdkerrors.ErrJSONUnmarshal, "note is not valid json `%s`", msg.Note)
}
window := k.GetParams(ctx).ProofWindow
file := types.UnifiedFile{
Merkle: msg.Merkle,
Owner: msg.Creator,
Start: ctx.BlockHeight(),
Expires: msg.Expires,
FileSize: msg.FileSize,
ProofInterval: window,
ProofType: msg.ProofType,
Proofs: make([]string, 0),
MaxProofs: msg.MaxProofs,
Note: msg.Note,
}
k.SetFile(ctx, file)
ips := make([]string, 0)
res := &types.MsgPostFileResponse{ProviderIps: ips, StartBlock: ctx.BlockHeight()}
totalSize := msg.FileSize * msg.MaxProofs
if msg.Expires > 0 { // if the file is posted as a one-time payment
kbs := totalSize / 1000
var kbMin int64 = 1024
if kbs < kbMin { // minimum amount of kbs to post
kbs = kbMin
}
blockDuration := msg.Expires - ctx.BlockHeight()
seconds := blockDuration * 6
minutes := seconds / 60
hours := minutes / 60
days := hours / 24
if days <= 0 {
return nil, fmt.Errorf("cannot pay for less than a day")
}
cost := k.GetStorageCostKbs(ctx, kbs, hours)
toPay := sdk.NewCoin("ujkl", cost)
refDec := sdk.NewDec(params.ReferralCommission).QuoInt64(100)
pol := sdk.NewDec(params.PolRatio).QuoInt64(100)
spr := sdk.NewDec(1).Sub(refDec).Sub(pol) // whatever is left from pol and referrals
storageProviderCut := toPay.Amount.ToDec().Mul(spr)
spcToken := sdk.NewCoin(toPay.Denom, storageProviderCut.TruncateInt())
spcTokens := sdk.NewCoins(spcToken)
end := ctx.BlockTime().AddDate(0, 0, int(days))
k.NewGauge(ctx, spcTokens, end) // creating new payment gauge
addr, err := sdk.AccAddressFromBech32(msg.Creator)
if err != nil {
return nil, sdkerrors.Wrapf(err, "cannot get address from message creator")
}
acc, err := types.GetTokenHolderAccount()
if err != nil {
return nil, sdkerrors.Wrapf(err, "cannot get token holder account")
}
err = k.bankKeeper.SendCoinsFromAccountToModule(ctx, addr, types.ModuleName, sdk.NewCoins(toPay)) // taking money from user
if err != nil {
return nil, sdkerrors.Wrapf(err, "cannot send tokens from %s", msg.Creator)
}
err = k.bankKeeper.SendCoinsFromModuleToAccount(ctx, types.ModuleName, acc, spcTokens)
if err != nil {
return nil, sdkerrors.Wrapf(err, "cannot send tokens to token holder account")
}
return res, nil
}
// traditional storage plan payment info
paymentInfo, found := k.GetStoragePaymentInfo(ctx, msg.Creator)
if !found {
return nil, sdkerrors.Wrapf(sdkerrors.ErrKeyNotFound, "storage account does not exist")
}
if paymentInfo.End.Before(ctx.BlockTime()) {
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnauthorized, "storage account is expired")
}
paymentInfo.SpaceUsed += totalSize
if paymentInfo.SpaceUsed > paymentInfo.SpaceAvailable {
return nil, sdkerrors.Wrapf(sdkerrors.ErrUnauthorized, "storage account does not have enough space available %d > %d", paymentInfo.SpaceUsed, paymentInfo.SpaceAvailable)
}
k.SetStoragePaymentInfo(ctx, paymentInfo)
ctx.EventManager().EmitEvent(
sdk.NewEvent(
sdk.EventTypeMessage,
sdk.NewAttribute(sdk.AttributeKeyModule, types.AttributeValueCategory),
),
)
b := False // pay once event
if msg.Expires > 0 {
b = True
}
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeSignContract,
sdk.NewAttribute(types.AttributeKeySigner, msg.Creator),
sdk.NewAttribute(types.AttributeKeyContract, hex.EncodeToString(msg.Merkle)),
sdk.NewAttribute(types.AttributeKeyPayOnce, b),
),
)
ctx.EventManager().EmitEvent(
sdk.NewEvent(
types.EventTypeJackalMessage,
sdk.NewAttribute(types.AttributeKeySigner, msg.Creator),
),
)
return res, nil
}