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Muharem cb944dc548 Treasury spends various asset kinds (#1333 )

### Summary 

This PR introduces new dispatchables to the treasury pallet, allowing
spends of various asset types. The enhanced features of the treasury
pallet, in conjunction with the asset-rate pallet, are set up and
enabled for Westend and Rococo.

### Westend and Rococo runtimes.

Polkadot/Kusams/Rococo Treasury can accept proposals for `spends` of
various asset kinds by specifying the asset's location and ID.

#### Treasury Instance New Dispatchables:
- `spend(AssetKind, AssetBalance, Beneficiary, Option<ValidFrom>)` -
propose and approve a spend;
- `payout(SpendIndex)` - payout an approved spend or retry a failed
payout
- `check_payment(SpendIndex)` - check the status of a payout;
- `void_spend(SpendIndex)` - void previously approved spend;
> existing spend dispatchable renamed to spend_local

in this context, the `AssetKind` parameter contains the asset's location
and it's corresponding `asset_id`, for example:
`USDT` on `AssetHub`,
``` rust
location = MultiLocation(0, X1(Parachain(1000)))
asset_id = MultiLocation(0, X2(PalletInstance(50), GeneralIndex(1984)))
```

the `Beneficiary` parameter is a `MultiLocation` in the context of the
asset's location, for example
``` rust
// the Fellowship salary pallet's location / account
FellowshipSalaryPallet = MultiLocation(1, X2(Parachain(1001), PalletInstance(64)))
// or custom `AccountId`
Alice = MultiLocation(0, AccountId32(network: None, id: [1,...]))
```

the `AssetBalance` represents the amount of the `AssetKind` to be
transferred to the `Beneficiary`. For permission checks, the asset
amount is converted to the native amount and compared against the
maximum spendable amount determined by the commanding spend origin.

the `spend` dispatchable allows for batching spends with different
`ValidFrom` arguments, enabling milestone-based spending. If the
expectations tied to an approved spend are not met, it is possible to
void the spend later using the `void_spend` dispatchable.

Asset Rate Pallet provides the conversion rate from the `AssetKind` to
the native balance.

#### Asset Rate Instance Dispatchables:
- `create(AssetKind, Rate)` - initialize a conversion rate to the native
balance for the given asset
- `update(AssetKind, Rate)` - update the conversion rate to the native
balance for the given asset
- `remove(AssetKind)` - remove an existing conversion rate to the native
balance for the given asset

the pallet's dispatchables can be executed by the Root or Treasurer
origins.

### Treasury Pallet

Treasury Pallet can accept proposals for `spends` of various asset kinds
and pay them out through the implementation of the `Pay` trait.

New Dispatchables:
- `spend(Config::AssetKind, AssetBalance, Config::Beneficiary,
Option<ValidFrom>)` - propose and approve a spend;
- `payout(SpendIndex)` - payout an approved spend or retry a failed
payout;
- `check_payment(SpendIndex)` - check the status of a payout;
- `void_spend(SpendIndex)` - void previously approved spend;
> existing spend dispatchable renamed to spend_local

The parameters' types of the `spend` dispatchable exposed via the
pallet's `Config` and allows to propose and accept a spend of a certain
amount.

An approved spend can be claimed via the `payout` within the
`Config::SpendPeriod`. Clients provide an implementation of the `Pay`
trait which can pay an asset of the `AssetKind` to the `Beneficiary` in
`AssetBalance` units.

The implementation of the Pay trait might not have an immediate final
payment status, for example if implemented over `XCM` and the actual
transfer happens on a remote chain.

The `check_status` dispatchable can be executed to update the spend's
payment state and retry the `payout` if the payment has failed.

---------

Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: command-bot <>

2023-10-07 19:32:35 +02:00

src

Treasury spends various asset kinds (#1333 )

2023-10-07 19:32:35 +02:00

Cargo.toml

Bump the known_good_semver group with 2 updates (#1284 )

2023-08-30 10:54:15 +02:00

README.md

Markdown linter (#1309 )

2023-09-04 12:02:32 +03:00

README.md

Tipping Pallet ( pallet-tips )

Note :: This pallet is tightly coupled to pallet-treasury

A subsystem to allow for an agile "tipping" process, whereby a reward may be given without first having a pre-determined stakeholder group come to consensus on how much should be paid.

A group of Tippers is determined through the config Config. After half of these have declared some amount that they believe a particular reported reason deserves, then a countdown period is entered where any remaining members can declare their tip amounts also. After the close of the countdown period, the median of all declared tips is paid to the reported beneficiary, along with any finders fee, in case of a public (and bonded) original report.

Terminology

Tipping: The process of gathering declarations of amounts to tip and taking the median amount to be transferred from the treasury to a beneficiary account.
Tip Reason: The reason for a tip; generally a URL which embodies or explains why a particular individual (identified by an account ID) is worthy of a recognition by the treasury.
Finder: The original public reporter of some reason for tipping.
Finders Fee: Some proportion of the tip amount that is paid to the reporter of the tip, rather than the main beneficiary.

Interface

Dispatchable Functions

report_awesome - Report something worthy of a tip and register for a finders fee.
retract_tip - Retract a previous (finders fee registered) report.
tip_new - Report an item worthy of a tip and declare a specific amount to tip.
tip - Declare or redeclare an amount to tip for a particular reason.
close_tip - Close and pay out a tip.
slash_tip - Remove and slash an already-open tip.