Commit Graph

72 Commits

Author SHA1 Message Date
Denali Marsh
6c68e41758
[R4R] bep3 module audit revisions (#505)
* most audit revisions

* remove expected income

* update begin block spec

* filter queryAtomicSwaps, add queryAssetSupplies

* update old address

* update test

* Remove legacy method

* remove legacy comment

* address PR comments

* IsValid for SwapDirection, SwapStatus

* fix rng logging

* query asset supplies

* return [64]byte from rng

* remove cross chain field from MsgCreateAtomicSwap

* move swap filtering to querier

* rename Limit field to SupplyLimit
2020-05-12 13:15:38 -07:00
Federico Kunze
04cb414593
x/bep3: genesis validation (#488)
* validate asset supply

* validate swap

* genesis tests

* swap and supply unit tests

* use Require() for suite

* fix tests

* Apply suggestions from code review


Co-authored-by: Denali Marsh <denali@kava.io>
2020-05-11 12:55:09 -04:00
Denali Marsh
8ef03e4181
[HOTFIX] Fix outgoing swaps in BEP3 sims (#490)
* check available asset supply on outgoing swaps

* switch maximum, current
2020-05-06 17:29:59 -07:00
Denali Marsh
611eff93cf
[R4R] Update bep3 module account permissions (#483)
* incoming swaps trigger acc registration

* move supply increment after recipient acc validation

* use expected keepers pattern

* remove expected keepers from alias

* update bep3 macc permissions

* clean supply keeper interface

* add module account check to genesis

* remove duplicated accountkeeper
2020-05-06 13:23:13 -07:00
Denali Marsh
7a904ddd6c
[R4R] Add outgoing swaps to bep3 sims (#484)
* incoming swaps trigger acc registration

* move supply increment after recipient acc validation

* use expected keepers pattern

* remove expected keepers from alias

* add outgoing swaps to sims
2020-05-06 12:30:27 -07:00
Denali Marsh
d56ad961c0
[R4R] Enable bep3 claim txs from new addresses (#482)
* incoming swaps trigger acc registration

* move supply increment after recipient acc validation

* use expected keepers pattern

* remove expected keepers from alias

* update comment
2020-05-06 10:56:43 -07:00
Federico Kunze
d8bbde78cc
build 2020-04-30 12:15:40 -04:00
Federico Kunze
1a04ffe396
fix some lint bugs 2020-04-30 11:33:10 -04:00
Federico Kunze
fe72a24aa0
update format 2020-04-30 10:23:41 -04:00
Federico Kunze
8853e8d3d1
linters and format 2020-04-30 10:13:31 -04:00
Kevin Davis
1ef9bd331b
USDX incentives implementation (#399)
* USDX incentives implementation (#399)
* feat: upgrade to cosmos-sdk v0.38

Co-authored-by: Denali Marsh <denali@kava.io>
Co-authored-by: John Maheswaran <jmaheswaran@users.noreply.github.com>
Co-authored-by: John Maheswaran <john@kava.io>
2020-04-24 11:20:34 -04:00
Denali Marsh
a4c5a13822
[R4R] BEP3 module spec and clean up (#450)
* bump SDK version to v0.38.2

* fix module.go and remove codespaces

* fix coins Add()

* fixes to handlers

* migrate errors

* more fixes

* fixes fixes fixes

* build

* check for paramstore keytable

* empty param validation function (TODO)

* param validations

* fix some tests

* fix all tests

* simulation fixes (WIP)

* auction and bep3 sim refactor

* fixes

* bep3 sims fixes

* auction and pricefeed fix

* cdp sims fixes

* fix tests

* Update x/auction/keeper/auctions.go

Co-Authored-By: Denali Marsh <denali@kava.io>

* Update x/bep3/types/params.go

Co-Authored-By: Denali Marsh <denali@kava.io>

* Apply suggestions from code review

Co-Authored-By: Denali Marsh <denali@kava.io>

* Update x/bep3/keeper/swap.go

Co-Authored-By: Denali Marsh <denali@kava.io>

* address comments from review

* address comments from review

* fix: run sims

* fix: implement marshal/unmarshal JSON for validator vesting account

* fix: don't call set on sealed config

* remove swap interface

* add concepts spec

* add state spec

* add messages spec

* update event names

* implement swap expired event

* add events spec

* add params spec

* add begin block spec

* add module readme

* update alias

* revisions

* aggregate expired swap ids for event emisison

* markdown-link-check-disable for circleci

* exclude api-endpoint links in Makefile

Co-authored-by: Federico Kunze <federico.kunze94@gmail.com>
Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: Kevin Davis <kjydavis3@gmail.com>
2020-04-23 13:57:25 -07:00
Federico Kunze
a573625df8
[R4R] bump SDK version to v0.38.3 (#421)
* bump SDK version to v0.38.3

Co-authored-by: Denali Marsh <denali@kava.io>
Co-authored-by: Kevin Davis <kjydavis3@gmail.com>
Co-authored-by: Kevin Davis <karzak@users.noreply.github.com>
Co-authored-by: denalimarsh <denalimarsh@gmail.com>
Co-authored-by: rhuairahrighairigh <ruaridh.odonnell@gmail.com>
2020-04-23 12:35:58 -04:00
Kevin Davis
5ae0b76e0c
[R4R] Bep3 sim changes (#442)
* fix: choose claim amount as percentage

* fix: lower asset supply to avoid overwhelming auctions
2020-04-17 14:05:36 -04:00
Kevin Davis
004837d7fc
Remove non-determinism from bep3 sims (#427)
* feat: remove non-determism from bep3 sims
2020-04-13 13:06:59 -04:00
Denali Marsh
3da4657102
[R4R] BEP3 simulations (#423)
* implement randomized genesis, params

* implement operations: MsgCreateAtomicSwap

* implement claim, refund future ops

* remove dynamic block locks

* refactor BondedAddresses

* add consistent supported assets
2020-04-11 20:54:45 -07:00
Federico Kunze
71d862300d
remove pointer from AtomicSwap 2020-04-06 18:45:46 -04:00
Federico Kunze
3f4aba1c7f
decoder tests 2020-04-04 19:42:35 -03:00
Federico Kunze
11ed343dea
simulation decoders for kava modules 2020-04-01 12:27:38 -03:00
Ruaridh
f3e2e7e585
add simulation stubs to make tests pass (#408) 2020-03-30 11:02:43 -04:00
Denali Marsh
2721ba3889
R4R: bep3 msgs [HOTFIX] (#406)
* implement hotfix

* add interface compliance check
2020-03-29 14:37:28 -04:00
Kevin Davis
82f637649c
[R4R] Testnet-5k proposal (#404)
* R4R: BEP3 module (#370)

* bep3 module scaffold from cosmos/scaffold

* Populated types, keeper with HTLT msgs, module params, and scaffolding for keys, and genesis

* added KavaHTLT struct, UpdateHTLT struct, resolved compilation errors

* refactored kavaHTLT struct <-> msgs

* Implemented params, refactored UpdateKavaHTLT to UpdateKHTLT interface

* Updated keeper with byTimeIndex methods

* HTLT creation flow

* adjustments in prep for repo config updates

* App moudle updated for bep3, MsgCreateHTLT tested, HTLT keeper methods tested

* Updated bep3 params to match spec

* tests for MsgRefundHTLT, MsgDepositHTLT, MsgClaimHTLT

* AddHtlt cli cmd, queryHtlts cmd, added conversion funcs for binance -> cosmos types, refactored MsgCreateHTLT from binance.AccAddress to sdk.AccAddress

* working edits related to bep3-deputy compatibility

* removed binance-chain go sdk dependency

* updated msg ValidateBasic() return to sdk.Error type

* implement MsgCalculateSwapID

* added MsgCalculateSwapID test, updated randomNumberHash type to []byte

* removed binance type conversions

* msg codec registration

* clean /types directory

* CLI cmds:create htlt, query htlt

* update keeper logic

* handle MsgCreateHTLT

* implement htlt type, msg types

* implement global chain types

* update querier

* added go-ethereum to go mod

* refactor QuerySwap to QueryHTLT

* update HTLTMsg to MsgCreateHTLT

* implemented htlt deposit

* add token transfer to MsgCreateHTLT

* implement refund, claim client txs

* add refund/claim cmds to tx cmd

* commiting go.sum for build

* implemented keeper claim logic

* add RandomNumberHash to create-htlt event

* implement refund keeper logic

* AddHTLT updated to CreateHTLT

* added params keeper

* updated params to single chain, added sample genesis file

* implemented htlt keeper param checks

* removed go-ethereum dependency

* updated go.sum

* housekeeping on keeper tests

* updated cli tx cmds

* ran go.tidy

* remove links from module readme

* updated coin construction in tests

* added expectedIncome checks in ValidateBasic()

* made ValidateAsset() more robust

* update param format for tests

* added basic HTLTByTime index

* implement abci, fix expectedIncome validation

* byTime index updated to blocks, added swap ID & expiration block to htlt

* added not-expired check to HTLT claims

* cross-chain mint/burn logic, htlt string type refactored to []byte

* fix bnb_deputy_address param

* remove abci panic

* cmn.HexBytes, byTime index iteration update, claim-mint logic update

* update genesis example

* general codebase cleaning

* renamed HTLT to AtomicSwap

* staging for PR

* updated naming conventions

* refactor + revisions

* removed code related to deposits & swap block index

* added timestamp validation comment

* post-refactor housekeeping

* post refactor housekeeping (keeper)

* remove GenesisAtomicSwap type

* refactor asset supply logic

* BeginBlocker expires swaps automatically

* param asset.limit type updated to sdk.Int

* remove claimed swaps from block index

* fix DefaultDeputyAddress

* removed BaseSwap

* revisions

* total genesis coins

* updated tx examples

* Automatically update fees for risky cdps (#381)

* wip: sketch implementation

* adding initial function to calcuate risky fees for cdps

* adding todo comment to fix the function arguments

* changing the function arguments

* adding multiplication, print error, change types

* get the number of periods, add comments and questios for code review

* adding specification notes

* removing old comment

* replace collateral with collateral denom

* remove todo and clarify comment

* Update x/cdp/keeper/fees.go

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update x/cdp/keeper/fees.go

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update go.sum

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update x/cdp/keeper/fees.go

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update x/cdp/keeper/fees.go

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update x/cdp/keeper/fees.go

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update x/cdp/abci.go

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* updating fees

* error handling and propogation

* fix collat denom variable

* fix build issues, error, variable names, parameter type

* Update x/cdp/abci.go

Use `err` as name instead of `e`

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update x/cdp/keeper/fees.go

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* fixing error variable name

* changing call to method to compute risky cdps fees

* changing the calcualation to select risky cdps to be based on normalized ratio

* adding skeleton for test methods, adding skeleton helper function for creating cdps for use in tests

* fixing function call to helper method

* fix assignment, calling function that returns two variables instead of one

* adding comment and fixing call to create cdps

* adding create cdps function and updating / fixing the test. one of the expected tests is failing, need to figure out why that is. added a todo question to note it

* logging the cdp object before and after updating. it seems that the fees are not set / written before or after

* adding interim changed

* updated

* fixing normalized ratio

* code cleanup

* changing print of accumulated fees

* removing debug code

* remove completed todo

* remove old variable

* remove spewing print statement

* remove dead todo

* adding note about prices for future

* remove dead code

* try to fix test

* fix types

* fix types

* fix context in call

* changing back as new version breaks a test

* fix

* cleanup, removing logging and old code

* remove dead code

* removing changes to cdp test

* Update x/cdp/keeper/fees.go

Remove old comment as suggested

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update x/cdp/spec/04_begin_block.md

Fix typo as suggested

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

Co-authored-by: Kevin Davis <karzak@users.noreply.github.com>

* Add Savings Rate (#365)

* fix: ensure cdp module accounts created at gensis

* feat: add savings rate

* chore: update alias

* fix: update default test param values

* chore: update spec for savings rate

* fix: add distribution time to genesis state

* fix: iterate over accounts using callback function

* feat: use seprate mod account for savings rate

* fix: remove mod account coins from total supply

* address review comments

* fix: genesis function initialization

* fix: update alias

* add comment about maintaining module account list

* feat: add genesis example

* R4R: bep3 module upgrades (#388)

* bep3 module scaffold from cosmos/scaffold

* Populated types, keeper with HTLT msgs, module params, and scaffolding for keys, and genesis

* added KavaHTLT struct, UpdateHTLT struct, resolved compilation errors

* refactored kavaHTLT struct <-> msgs

* Implemented params, refactored UpdateKavaHTLT to UpdateKHTLT interface

* Updated keeper with byTimeIndex methods

* HTLT creation flow

* adjustments in prep for repo config updates

* App moudle updated for bep3, MsgCreateHTLT tested, HTLT keeper methods tested

* Updated bep3 params to match spec

* tests for MsgRefundHTLT, MsgDepositHTLT, MsgClaimHTLT

* AddHtlt cli cmd, queryHtlts cmd, added conversion funcs for binance -> cosmos types, refactored MsgCreateHTLT from binance.AccAddress to sdk.AccAddress

* working edits related to bep3-deputy compatibility

* removed binance-chain go sdk dependency

* updated msg ValidateBasic() return to sdk.Error type

* implement MsgCalculateSwapID

* added MsgCalculateSwapID test, updated randomNumberHash type to []byte

* removed binance type conversions

* msg codec registration

* clean /types directory

* CLI cmds:create htlt, query htlt

* update keeper logic

* handle MsgCreateHTLT

* implement htlt type, msg types

* implement global chain types

* update querier

* added go-ethereum to go mod

* refactor QuerySwap to QueryHTLT

* update HTLTMsg to MsgCreateHTLT

* implemented htlt deposit

* add token transfer to MsgCreateHTLT

* implement refund, claim client txs

* add refund/claim cmds to tx cmd

* commiting go.sum for build

* implemented keeper claim logic

* add RandomNumberHash to create-htlt event

* implement refund keeper logic

* AddHTLT updated to CreateHTLT

* added params keeper

* updated params to single chain, added sample genesis file

* implemented htlt keeper param checks

* removed go-ethereum dependency

* updated go.sum

* housekeeping on keeper tests

* updated cli tx cmds

* ran go.tidy

* remove links from module readme

* updated coin construction in tests

* added expectedIncome checks in ValidateBasic()

* made ValidateAsset() more robust

* update param format for tests

* added basic HTLTByTime index

* implement abci, fix expectedIncome validation

* byTime index updated to blocks, added swap ID & expiration block to htlt

* added not-expired check to HTLT claims

* cross-chain mint/burn logic, htlt string type refactored to []byte

* fix bnb_deputy_address param

* remove abci panic

* cmn.HexBytes, byTime index iteration update, claim-mint logic update

* update genesis example

* general codebase cleaning

* renamed HTLT to AtomicSwap

* staging for PR

* updated naming conventions

* refactor + revisions

* removed code related to deposits & swap block index

* added timestamp validation comment

* post-refactor housekeeping

* post refactor housekeeping (keeper)

* remove GenesisAtomicSwap type

* refactor asset supply logic

* BeginBlocker expires swaps automatically

* param asset.limit type updated to sdk.Int

* remove claimed swaps from block index

* fix DefaultDeputyAddress

* removed BaseSwap

* revisions

* total genesis coins

* updated tx examples

* timestamp to unix

* add past timestamp limit

* update random number byte encoding

* add recipient_other_chain to AtomicSwap

* add TODO for timestamp arg parsing

* generate secure random numbers

* update tx cli

* keeper tests

* add bnb token

* bep3 params test set up, test CreateAtomicSwap

* swap table tests

* Revert "bep3 params test set up, test CreateAtomicSwap"

This reverts commits containing tests.

* use tmtime.Now()

* Kava distribution module (#387)

* wip: kavadist module structure

* feat: implement minting logic

* wip: sketch module

* wip: module level code

* wip: bug fixes

* wip: add tests

* wip: resolve todos and tidy

* fix: remove unused file

* address review comments

* fix: update genesis for guide (#394)

* add kava_dist to sample genesis file (#396)

* R4R: BEP3 module test suite (#395)

* refactor secure rng

* refactor common tests, implement keeper tests

* implement asset tests

* implement params, querier tests

* implement keeper swap tests

* refactor import naming conventions

* implement core types tests

* improve keeper swap tests

* implement genesis types test

* implement params test + revisions

* implement duplicate swap test

* implement duplicate swap ID test

* R4R: BEP3 additional features + module test suite (#397)

* update and reorder errors

* implement swap deletion block delay

* add swap deletion block delay, set up tests

* add secure random number gen

* implement AtomicSwapLongtermStorage index

* fix syntax error

* abci test updates

* implement handler test

* implement core genesis tests

* update asset supply logic

* implement functional asset supply

* pretty print atomic swaps

* requested revisions

* fix test suite post merge

* implement and integrate asset supply tests

* update import genesis, add storage duration param

* implement swap deletion ABCI test

* go mod tidy

* remove duplicated interface assertion

* add new bep3 param to contrib genesis file

* remove btc from supported assets

* revisions: LongtermStorageDuration param

* revisions: suite ctx, fix genesis, update contrib

* implement AssetSupply type, store key, keeper

* integrate supply and swaps; genesis, tests

* remove legacy comments

* requested revisions

* update alias

* Swagger Rest Automating Testing With Dredd  (#390)

* swagger testing and mods

* fixed a test

* fixed withdraw address

* adding script to start the chain

* fixed val rewards test

* fix outstanding rewards test

* fixed rewards

* hooks skeleton

* adding test file and hooks

* updates on the hooks working

* now creates a transaction and sends to the chain via rest api successfully

* small fix - now works

* 34 tests now passing successfully

* fix print statement error

* instructions on how to run the tests

* changing function names when to run the hooks

* adding instructions on how to setup and run the dredd tests

* removing large error output file

* removing binary file

* removing more output logging files

* creating a vote on a proposal to send to the blockchain

* adding instructions on how to setup chain

* adding function to get account number and sequence number

* adding send msg to blockchain method

* posting vote tx to blockchain - successfully prepares and sends vote to endpoint but endpoint returns 'inactive proposal with id'

* successfully depositing 600 stake to a proposal

* successfully depositing onto a proposal and then voting on it

* got another governance test working now after submitting a vote to the blockchain

* updating instructions on how to run

* fixed another voting test

* fixed deposits test

* fixed another gov test

* fix print line

* fix circle ci build issue with println

* improving instructions on how to build and run the hooks and dredd tests

* improving instructions on how to build and run the hooks and dredd tests

* finally fixed param change governance proposal test

* trying to unskip tests wip

* fixed gov/proposals test

* fixed another test

* fixed a slashing test

* fixed another redelegation test

* fixed another unbonding delegation test

* fixed more staking tests

* fixed another staking test

* fixed another test

* fixed more tests. 50 now passing, 15 failing

* fixed mislabeled variable

* managed to fix unjail test

* fixed bank acct transfers test

* change certain types from number to string to match the output, typo fix

* another typo fix

* fixed delegation test

* finally figured out and fixed the latest blocks types mismatch - fixed the test

* fixed staking delegators validators test

* removed and noted unimplemented tests from yaml file. fixed blocks height test

* fixed transcations test

* adding functionality to send transfer of coins to blockchain, and to send delegations

* updating the yaml to line up with a valid message format

* added delegation method

* adding test results showing 57 are now passing and only 5 failing

* remove test yaml file from pull req

* testing file updates

* adding test memo

* added undelegation hook method - fixed unbonding delegation test

* fixed the get tx from hash test

* adding not if you encounter validator set is different errors how to fix. 59 tests now passsing, 3 failing

* adding test results showing 59 passing, 3 failing

* finally fixed encode test - 60 tests now passing only 2 failing

* adding test results 60 passing 1 failing

* more test updates

* finally fixed decode test - 61 tests now passing only 1 failing

* test results 61 tests passing 1 failing

* remove dead code

* all 62 tests are now passingga swagger.yaml  0 failing

* used for testing and generating transactions and testing hooks

* updating run instructions

* more instructions updates

* updating the test file

* adding note on reading from a file

* refactoring code and cleanup

* refactoring getting the keybase

* code cleanup for address, keyname methods, remove unused code

* more code cleanup around addresses

* updating the instructions on how to run the dredd tests

* adding comment

* adding additional requirements to the go.mod dependency file

* remove hardcoded home directory, read using os golang library

* increase timeout in example run script

* remove hardcoded home directory

* reordering commands to get rid of errors if key directory is deleted

* changing to use temporary directory

* updating dredd timeout time

* finally managed to get the script wroking using a temporary directory instead of the default

* adding notes and comments

* changing to use a temp directory instead of default directory

* remove un-needed file

* rename debugging tools folder

* adding instructions to install dredd and npm

* Update swagger-ui/startchain.sh

Send output to dev null not to console

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* Update swagger-ui/startchain.sh

Send output to dev null not to console

Co-Authored-By: Kevin Davis <karzak@users.noreply.github.com>

* adding new version of test.go to setup the chain

* adding todo to update instructions for new workflow

* updating script to start and setup the chain

* updating the transaction hash test

* update the start chain script to setup the chain correctly

* add the script to stop the chain and the rest server

* updated the instructions for the new workflow so that all the tests pass the first time

* updated the instructions on how to run the tests

* update instructions for printing logs or not

* updating the startchain script to add messages when starting the rest server and preparing transactions

* adding print messages when stop chain is completed

* updating test results to just include test output and not the debug log statements

* cleaning up the messages that are printed to the user

* moving files to their own directory

* build go test file and remove previous binary

* move instructions

* updating instructions now that test file is auto built

* building, running dredd tests, propagating error code, shut down blockchain all in one script

* fix object type to array type for block latests

* cleaning up the script

* rename script as it now does all the setup, test running, shutdown, and cleanup

* update instructions for new workflow

* adding a shell script to call from the makefile

* adding a make command to build and run all the dredd tests

* update instructions to run using make

* updated code review comment

* minor update to instructions

* update remove file command so doesn't print an error if the file has already been deleted

* renaming folder and test

* adjust code comment

* removing example test results

* updating instructions to remove reference to the test results

* remove old hooks file

* remove obsolete code comment

* remove swagger file, will change references to the other one

* remove shell script, will now use the one called from make instead

* renaming as underscore messes up go build

* clean up script, fix return code issues

* cleanup output file

* fix object to array issue

* add comments to explain functionality

* use variables for kvd home and kvcli home, check for errors

* change the kvcli home directory. need to take this from command line

* take kvcli from command line parameter to golang file

* take kvcli directory from command line parameter

Co-authored-by: John Maheswaran <john@kava.io>
Co-authored-by: Kevin Davis <karzak@users.noreply.github.com>

* R4R: Update BEP3 rest endpoints + format example requests (#402)

* update and reorder errors

* implement swap deletion block delay

* add swap deletion block delay, set up tests

* add secure random number gen

* implement AtomicSwapLongtermStorage index

* fix syntax error

* abci test updates

* implement handler test

* implement core genesis tests

* update asset supply logic

* implement functional asset supply

* pretty print atomic swaps

* requested revisions

* fix test suite post merge

* implement and integrate asset supply tests

* update import genesis, add storage duration param

* implement swap deletion ABCI test

* go mod tidy

* remove duplicated interface assertion

* add new bep3 param to contrib genesis file

* remove btc from supported assets

* revisions: LongtermStorageDuration param

* revisions: suite ctx, fix genesis, update contrib

* implement AssetSupply type, store key, keeper

* integrate supply and swaps; genesis, tests

* remove legacy comments

* requested revisions

* update alias

* rest queries

* implement BEP3 REST txs

* draft rest server readme + example json files

* tested all swap rest examples

* implement query swaps rest endpoint

* feat: update genesis examples

* fix: use post instead of put (#405)

Co-authored-by: Denali Marsh <denali@kava.io>
Co-authored-by: John Maheswaran <jmaheswaran@users.noreply.github.com>
Co-authored-by: John Maheswaran <john@kava.io>
2020-03-27 22:54:00 -04:00