# DAO Treasury

A Treasury for DAOs. It can receive and send `sui::coin::Coin`.

## Structs

### <mark style="color:blue;">**DaoTreasury**</mark>

```rust
struct DaoTreasury<phantom DaoWitness: drop> has key, store {
    id: UID,
    coins: Bag,
    dao: ID,
}
```

* **coins** - Stores the treasury coins
* **dao**- The `sui::object::ID` of the DAO.

### <mark style="color:blue;">**DaoTreasury**</mark>

```rust
struct FlashLoan<phantom DaoWitness, phantom CoinType> {
    amount: u64,
    fee: u64,
    type: TypeName
}
```

* **amounts:** The amount being borrowed
* **fee**- The fee amount to be repaid.
* **type:** The std::type\_name::TypeName of the CoinType to repay the loan.

## Interface

### <mark style="color:blue;">dao</mark>

**Returns the `sui::object::ID` of the Dao that owns the `treasury`.**

```rust
public fun dao<DaoWitness: drop>(treasury: &DaoTreasury<DaoWitness>): ID 
```

* **@param treasury:** A DaoTreasury.
* **@return** ID

### <mark style="color:blue;">balance</mark>

**Returns the amount of Coin in the `treasury`.**

```rust
public fun balance<DaoWitness: drop, CoinType>(treasury: &DaoTreasury<DaoWitness>): u64
```

* **@param treasury:** A DaoTreasury.
* **@return** u64

### <mark style="color:blue;">donate</mark>

**Adds `token` to the `treasury`.**

```rust
public fun donate<DaoWitness: drop, CoinType>(treasury: &mut DaoTreasury<DaoWitness>, token: Coin<CoinType>, ctx: &mut TxContext)
```

* **@param treasury A DaoTreasury.**
* **@param token It will be donated to the `treasury`.**

### <mark style="color:blue;">transfer</mark>

**Withdraws a coin from the `treasury`.**

```rust
public fun transfer<DaoWitness: drop, CoinType, TransferCoin>(
    treasury: &mut DaoTreasury<DaoWitness>,
    _: &DaoAdmin<DaoWitness>,
    value: u64,
    ctx: &mut TxContext
): Coin<CoinType>
```

* **@param treasury:** A DaoTreasury.
* **@param \_ :** Immutable reference to the DaoAdmin.
* **@param value :** The amount to withdraw.
* **@return** Coin

### <mark style="color:blue;">transfer\_linear\_vesting\_wallet</mark>

**Withdraws a LinearWallet from the `treasury`.**

```rust
public fun transfer_linear_vesting_wallet<DaoWitness: drop, CoinType, TransferCoin>(
    treasury: &mut DaoTreasury<DaoWitness>,
    _: &DaoAdmin<DaoWitness>,
    c: &Clock,
    value: u64,
    start: u64,
    duration: u64,
    ctx: &mut TxContext    
): LinearWallet<CoinType>
```

* **@param treasury:** A DaoTreasury.
* **@param \_ :** Immutable reference to the DaoAdmin.
* **@param c:** The `sui::clock::Clock`
* **@param value :** The amount to withdraw.
* **@param start :** The amount to withdraw.
* **@param duration :** The duration of the vesting schedule.
* **@return** LinearWallet.

### <mark style="color:blue;">flash\_loan</mark>

**Requests a Flash Loan from the `treasury`.**

```rust
public fun flash_loan<DaoWitness: drop, CoinType>(
    treasury: &mut DaoTreasury<DaoWitness>, 
    value: u64, 
    ctx: &mut TxContext
): (Coin<CoinType>, FlashLoan<DaoWitness, CoinType>)
```

* **@param treasury:** A DaoTreasury.
* **@param value :** The amount of the loan.
* **@return Coin\<CoinType>.** The coin that is being borrowed.
* **@return** FlashLoan\<DaoWitness, CoinType>. Hot potato to ensure that the coin is returned within the same transaction block.&#x20;

### <mark style="color:blue;">fee</mark>

**Returns the service fee amount that must be paid.**

```rust
public fun fee<DaoWitness: drop, CoinType>(flash_loan: &FlashLoan<DaoWitness, CoinType>): u64
```

* **@param flash\_loan:**  A FlashLoan hot potato.
* **@return u64.**&#x20;

### <mark style="color:blue;">amount</mark>

**Returns the amount of the loan without the fees.**

```rust
public fun amount<DaoWitness: drop, CoinType>(flash_loan: &FlashLoan<DaoWitness, CoinType>): u64
```

* **@param flash\_loan:**  A FlashLoan hot potato.
* **@return u64.**&#x20;

### <mark style="color:blue;">repay\_flash\_loan</mark>

**Repays the `flash_loan` to the `treasury`.**

<pre class="language-rust"><code class="lang-rust">public fun repay_flash_loan&#x3C;DaoWitness: drop, CoinType>(
    treasury: &#x26;mut DaoTreasury&#x3C;DaoWitness>, 
    flash_loan: FlashLoan&#x3C;DaoWitness, CoinType>,
    token: Coin&#x3C;CoinType>
<strong>)
</strong></code></pre>

* **@param treasury:** A DaoTreasury.
* **@param flash\_loan:**  A FlashLoan hot potato.
* **@param token:**  The borrowed coin + fee.&#x20;

**Aborts**

* `token.value` is smaller than the initial loan amount + fee amount.


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